Service Manual2004 SUPPLEMENTAL RESTRAINTS SYSTEM

SECTION 8B

SUPPLEMENTAL RESTRAINTS SYSTEM

Caution : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.

DESCRIPTION AND OPERATION

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

The supplemental restraint system (SRS) is safety device used in conjunction with the seat belts. The air bag does not replace the function of the seatbelt. The driver and the passengers must always fasten their seat belts adjust them for a proper fit.

The SRS is designed to protect the driver and the front seat passenger in the event of a significant frontal impact to the vehicle. The airbags deploy if the force is applied from a direction within 30 degrees of the vehicle's centerline.

The SRS system consists of a

Driver side airbag module.
Passenger side airbag module.
Driver's and front passengers seat belt pretensioners (and load limiter for some model).
Sensing and diagnostic module (SDM).
Clock spring.
Wire harness and connectors.
AIRBAG indicator on the instrument cluster.

There are two to four separate deployment loops in the SRS system. The term "loop" is used because current leaves the SDM and returns to the SDM during deployment or testing. First loop is the circuit from SDM to the driver airbag and back to the SDM. Second loop is the circuit from the SDM to the passenger airbag and back to the SDM. The third and fourth loops are for right and left pretensioners.

AIRBAG MODULES

Driver Airbag Module

Caution : Tempering with driver side airbag module creates the risk of an injury from unexpected deployment. Therefore, the driver side airbag module should never be disassembled.

The driver airbag module is under the center pad of the steering wheel. The driver airbag module contains an igniter charger and a gas generator to inflate the folded airbag.

The airbag contains a shorting bar, which short-circuit the driver high circuit to driver low circuit when the connector is disconnected. The shorting bar prevents current from traveling through the driver airbag module during servicing. The shorting bar is disengaged when the connector is connected.

Passenger Airbag Module

Caution : Tempering with passenger side airbag module creates the risk of an injury from unexpected deployment. Therefore, the passenger side airbag module should never be disassembled.

The passenger airbag module is on the passenger side of the instrument panel. The passenger airbag module contains an igniter charge and a gas generator to inflate the folded airbag.

The airbag contains a shorting bar, which short-circuit the passenger high circuit to passenger low circuit when the connector is disconnected. The shorting bar prevents current from traveling through the passenger air-bag module during servicing. The shorting bar is disengaged when the connector is connected.

Side airbag module

Caution : Tempering with side airbag module creates the risk of an injury from unexpected deployment. Therefore, the driver side airbag module should never be disassembled.

The side airbag modules are in the driver's and pas-senser's seats . The side airbag module contains an igniter charge and a gas generator to inflate the foleded air bag.

The airbag connector contains a shorting bar, which makes the circuit shorted when the connector is disconnected. The shorting bar prevents current from travelling through the side airbag module during servicing. The shorting bar is disengaged when the connector is connected.

FRONT SEAT BELT PRETENSIONERS

Caution : Tempering with seat belt pretensioner creates the risk of an injury from unexpected deployment. Therefore, the seat belt pretensioner should never be disassembled.

The seat belt pretensioners (with load limiter for some vehicles) are assembled with each front seat belt retractor to retract the seat belt webbing when accounted a frontal collision. The seat belt pretentioners are controlled by sensing and diagnostic Module (SDM).

The seat belt pretensioner contains an igniter charge and a gas generator to pull the seat belt webbing. The seat belt pretensioner must be replaced after an accident that causes its activation.

The seat belt pretensioner also contains a shorting bar to prevent current from traveling through the seat belt pretensioner during servicing. The shorting bar is disengaged when the connector is connected.

SIDE AIRBAG MODULE

Caution : Tempering with side airbag module creates the risk of an injury from unexpected deployment. Therefore, the driver side airbag module should never be disassembled.

The side airbag modules are in the driver's and pas-senser's seats . The side airbag module contains an igniter charge and a gas generator to inflate the foleded air bag.

SENSING AND DIAGNOSTIC MODULE (SDM)

Caution : During the service procedures, be careful when handling the SDM. Never shake or jar the SDM. Never apply power to SRS when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts and grounding nut must be fully tightened. Failure to follow these precautions could cause deployment and result in personal injury.

The SDM located on floor beneath the floor console assembly. The SDM performs the following functions:

Monitors the supplemental restraint system (SRS) electrical components and sets a diagnostic trouble code (DTC) when malfunction is detected.
Records any faults that are discovered.
Displays SRS diagnostic trouble codes and system status information when connected to a scan tool.
Illuminates the AIRBAG indicator to alert the driver to any fault.
Provides a reserve power source to deploy the air-bags and pretensioners if an accident has disabled the normal power source.
Monitor vehicle velocity changes to detect frontal impacts, which are severe enough to warrant deployment.
Causes current to flow through the airbag modules and pretensioner to cause deployment if a frontal impact of sufficient force is detected.

The SDM contains no user-serviceable parts.

AIRBAG WARNING LAMP

The instrument cluster contains an airbag warning indicator bulb to verify the operation of the AIRBAG indicator and sensing and diagnostic module (SDM). The SDM performs a turn-on test when the ignition is turned ON. The SDM flashes the AIRBAG indicator seven times by supplying an intermittent ground to the indicator lamp circuit. After flashing seven times, the AIRBAG indicator will turn off if no more malfunctions have been detected.

If the SDM has detected malfunctions In the internal or external circuits, which could potentially affect the operation of the supplemental restraint system (SRS), the AIRBAG indicator stays on. Some malfunctions could result in non-deployment when necessary or deployment under conditions which would no normally result in deployment.

When the SDM is not properly attached to its connector, the airbag circuit is shorted to ground because there is a shorting bar within the SDM electronic connector. The shorting bar is disengaged when proper connection is made, but if a poor connection exists the SDM connector supplies a ground to the AIRBAG indicator in dependently of the SDM, and the AIRBAG indicator turns on.

CLOCK SPRING

Caution : Disassembling the clock spring can cause injury or cause the clock spring to malfunction.

Caution : Over-rotating the clock spring without the steering wheel in position could damage the clock spring and result in an inoperative driver airbag.

There is a coil assembly in the steering which is referred to as a clock spring because of its internal resemblance to the type of spring used in a mechanical clock. The clock spring should never be disassembled, and there is no timekeeping function. The clock spring contains two or three current-carrying coils. One of the current-carrying coils maintains continuous contact within the driver deployment loop while the steering wheel is rotated. The clock spring also contains coils that maintain continuous contact for horn and remote audio control switch circuit.

Turning the steering wheel in one direction tightens the coil, and turning the steering wheel in the opposite direction loosens the coil. Do not turn the clock spring when the steering wheel is not attached. Refer to "Clock Spring" in this section for proper installation of the clock spring.

The clock spring also includes the wiring and the connectors for the horn circuit and the driver airbag circuit. A yellow two-way connector on the lower steering column is attached to the clock spring wiring. The airbag side of the yellow connector contains a shorting bar which connects the driver high circuit to driver low circuit when the connector is disconnected. The shorting bar prevents current from travelling through the driver airbag module during servicing. The shorting bar disengaged when the clock spring connector is connected.

WIRING HARNESS CONNECTORS

If the sensing and diagnostic module (SDM) electrical connector is not attached properly, a built in shorting bar will connect the wire from airbag warning lamp with the SDM ground wire. This turns on the AIRBAG indicator. To prevent deployment during servicing, additional shorting bars are located in following locations:

The clock spring electrical connector at the lower steering column.
The passenger airbag module.
The driver airbag module.
The seat belt pretensioners.

The shorting bar is only a backup safety device. Always disable the supplemental restraints system (SRS) before beginning any service procedure.

COMPONENT LOCATOR

SRS COMPONENT AND WIRING LOCATION VIEW

Driver Airbag Module
Clock Spring
Pretensioner
Sensing And Diagnostic Module (SDM)
Data Link Connector (DLC)
Passenger Airbag Module
Side Airbag Module
Side Airbag Sensor

DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC TROUBLE CODES (DTC)

When the sensing and diagnostic module (SDM) detects any problem it illuminates the AIRBAG warning indicator and stores the diagnostic trouble codes (DTCs). The supplemental restraint system (SRS) Diagnostic System Check must always be the starting point for any SRS diagnosis. The Diagnostic System Check reveals diagnostic trouble codes (DTCs) through the use of scan tool. It also checks for proper AIRBAG warning lamp operation.

The two types of DTCs that may be recorded are as follows:

Active DTCs represent malfunction being detected during the current ignition cycle. Active DTCs are stored in random access memory (RAM).
Historic DTCs represent malfunctions detected since the last time the historic memory was cleared.

Historic DTCs are stored in the electrically erasable programmable read-only memory (EPPROM)

Diagnostic Trouble Code Table

DTC	Description
B0016	Passenger Frontal Airbag Deployment Loop Resistance Low
B0017	Passenger Frontal Airbag Deployment Loop Open
B0018	Passenger Frontal Airbag Deployment Loop Shorted
B0022	Driver Frontal Airbag Deployment Loop Resistance Low
B0024	Driver Frontal Airbag Deployment Loop Shorted
B0026	Driver Frontal Airbag Deployment Loop Open
B0028	Passenger Side Airbag Deployment Loop Resistance Low
B0029	Passenger Side Airbag Deployment Loop Open
B0030	Passenger Side Airbag Deployment Loop Shorted
B0040	Driver Side Airbag Deployment Loop Resistance Low
B0041	Driver Side Airbag Deployment Loop Open
B0045	Driver Side Airbag Deployment Loop Shorted
B0051	Deployment Commanded
B0053	Deployment Commanded with Loop Faults Present
B0057	Passenger Belt Pretensioner Deployment Loop Resistance Low
B0058	Passenger Belt Pretensioner Deployment Loop Open
B0059	Passenger Belt Pretensioner Deployment Loop Shorted
B0061	Airbag Warning Lamp Failure
B0064	Driver Belt Pretensioner Deployment Loop Resistance Low
B0065	Driver Belt Pretensioner Deployment Loop Open
B0066	Driver Belt Pretensioner Deployment Loop Shorted
B0077	Driver Side Airbag Sensor Defect
B0078	Passeger Side Airbag Sensor Defect
B0079	Driver Side Airbag Sensor Wrong ID
B0081	Passeger Side Airbag Sensor Wrong ID
B1000	Internal SDM Fault

SCAN TOOL DIAGNOSTICS

A scan tool can read serial data from terminal 2 of the data link connector (DLC). The scan tool is used to read diagnostic trouble codes (DTCs), and to clear some DTCs after a repair is completed. By design, DTC B0051 and B0053 cannot be cleared. And the DTC B0061 cannot cleared for the ignition cycle once the DTC has been detected by the SDM.

To use the scan tool, turn the ignition OFF, connect the scan tool to the DLC, and turn the ignition switch to ON.

Follow the instructions in the scan tool manual. The SDM sends serial data from terminal A11 of the SDM to terminal 2 of the DLC.

USE OF SPECIAL TOOLS

Use a scan tool to read and clear diagnostic trouble codes (DTCs). A connector adapter kit provides jumper wires and terminal adapters to make it easier to test small terminals. In diagnostic testing, use load tool or dummy resistance to substitute for airbag modules.

SRS DIAGNOSTIC SYSTEM CHECK

Notice : If the vehicle interior has been exposed to extensive water intrusion such as water leaks, driving through high water, flooding, or other caucuses, the sensing and diagnostic module (SDM) and SDM connector may be need to be replaced. With ignition OFF, inspect the area around the SDM, including the carpet. If any significant soaking or evidence of previous soaking is detected, the water must be removed, water damage repaired, and the SDM and SDM connector must be replaced. Before attempting any of these repairs, the supplemental restraint system (SRS) must be disabled. Refer to "Disabling the SRS" and "Sensing and Diagnostic Module (SDM)" in this section for instructions on how to disable the SRS and replace the SDM.

The SRS Diagnostic System Check must always be the starting point for any SRS diagnosis. The Diagnostic System Check reveals diagnostic trouble codes (DTCs) through the use of scan tool.

The diagnostic procedures used in this section are designed to find and repair SRS conditions. To get the best results, it is important to use the diagnostic charts and follow the sequence listed below.

Perform the SRS Diagnostic System Check, which reveals diagnostic trouble codes (DTCs) through the use of scan tool. It also checks for proper AIRBAG indicator operation.
Refer to the proper diagnostic chart as directed by SRS Diagnostic System Check. Bypassing these procedures may result in extended diagnostic time, incorrect diagnosis, and incorrect parts replacement.
Repeat the SRS Diagnostic System Check after any repair or diagnostic procedures have been performed to ensure that the repair has been made correctly and that no other malfunction exists.

Circuit Description

When the ignitions witch is first turned to ON, ignition voltage is supplied from airbag fuse to the SDM at input terminal A1. The SDM responds by flashing the AIR-BAG indicator seven times and then turning it off while the SDM performs tests on the SRS.

Diagnostic Aids

The order in which DTCs are diagnosed is very important. Failure to diagnose the DTCs in the order specified may result in extended diagnostic time, incorrect diagnosis, and incorrect parts replacement.

SRS Diagnostic System Check

Caution : The sensing and diagnosis module (SDM) can maintain sufficient voltage to deploy the air-bags and pretensioners for 1 minute after the ignition is OFF and the fuse has been removed. If the airbags or pretensioners are not disconnected, do not begin service until one minute has passed after disconnecting power to the SDM. Otherwise, injury could result.

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental restraints system (SRS) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened, and the arrow on the SDM must be pointing toward the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Turn the ignition switch to ON. Observe the AIRBAG indicator as the ignition is being turned ON. Does the indicator flashes seven times?	-	Go to Step 2	Go to Step 6
2	Observe the AIRBAG indicator after the ignition has been turned ON. Does the AIRBAG indicator turn OFF?	-	Go to Step 10	Go to Step 3
3	Turn the ignition to LOCK and remove the key. Connect the scan tool to the data link connector (DLC). Follow the directions given in the scan tool manual. Turn the ignition to ON. Request SRS DTC display with the scan tool. Record all DTCs, indicating each as either a current or a history DTC. Are only history DTCs displayed?	-	Refer to the DTC chart for any DTC that was set, and refer to the Diagnostic Aids for that specific DTC	Go to Step 4
4	Check the recorded DTCs. Are current DTCs B0018, B0024, B0051 or B0053 set?	-	Go to the DTC chart indicated by any of these three codes	Go to Step 5
5	Check the recorded DTCs. Are there any other current DTCs shown?	-	Diagnose the remaining current DTCs from lowest number to highest	Refer to the DTC chart for any history DTC that was set, and refer to "Diagnostic Aids" for that specific DTC
6	Observe the AIRBAG indicator after the ignition has been turned ON. Does the AIRBAG indicator stay on?	-	Go to "Airbag Warning Lamp Stays on withIgnition Switch ON"	Go to Step 7
7	Turn the ignition to LOCK and remove the key. Disconnect the sensing and diagnostic module (SDM) connector. Check the AIRBAG indicator bulb and circuit. Are the bulb and bulb circuit in good condition?	-	Go to Step 9	Go to Step 8
8	Replace the bulb or repair the bulb circuit. Connect SDM connector and ensure that all components are properly mounted. Is the repair complete?	-	Go to Step 1	-
9	Turn the ignition to LOCK and remove the key. Disable the SRS. Replace the SDM. The arrow on the SDM must be pointing toward the front of the vehicle. Enable the SRS and ensure that all components are properly mounted. Is the repair complete?	-	Go to Step 1	-
10	Turn the ignition to LOCK and remove the key. Connect the scan tool to DLC. Follow the direction given in the scan tool manual. Turn the ignition switch to ON. Request SRS DTC display with scan tool. Record all history DTCs. Are any SRS DTCs displayed?	-	Go to Step 11	System OK
11	Turn the ignition to OFF. Is DTC B1000 set?	-	Go to "DTC B1000 ECU Malfunction	Refer to the DTC chart for any history DTC that was set, and refer to "Diagnostic Aids" for that specific DTC

SENSING AND DIAGNOSTIC MODULE (SDM) INTEGRITY CHECK

The following diagnostic chart must be used when all circuitry outside the sensing and diagnostic module (SDM) has been found to operate properly, as indicated by following the appropriate diagnostic trouble code (DTC) chart. The chart verifies the need for SDM replacement.

Circuit Description

When the SDM recognizes ignition voltage greater then 9 volts at terminal A1 of the SDM, the AIRBAG indicator flashes seven times to verify operation. At this time the SDM performs turn-on tests followed by resistance measurement tests and continues monitoring tests. When malfunction is detected, the SDM sets a current DTC and illuminates the AIRBAG indicator. When the malfunction is no longer detected and/or the ignition switch is cycled, the SDM will clear current DTCs and move them to a history file, except for the DTCs 51, 53 and sometimes 71. DTCs 51 and 53 will not clear using a scan tool because these codes require replacement of SDM. The SDM must be replaced only after the malfunction that set the DTC has been repaired.

Sensing and Diagnostic Module (SDM) Integrity Check

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental restraints system (SRS) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened and the arrow on SDM must be pointing toward the front of the vehicle to ensure proper operation of the SRS operation. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Turn the ignition to LOCK and remove the key. Connect all SRS components, and ensure that all components are properly mounted. Ensure that the ignition switch has been off for at least 30 seconds. Observe the AIRBAG indicator as the ignition is turned ON. Does the indicator lamp flashes seven times and then turn off?	-	Clear the SRS DTCs and go to "Diagnostic System Check"	Go to Step 2
2	Turn the ignition to LOCK and remove the key. Connect the scan tool to DLC. Follow the directions given in the scan tool manual. Turn the ignition to ON. Request SRS DTC display with the scan tool. Is the same DTC displayed that was previously occurring when the SRS Diagnostic System Check was previously performed?	-	Go to Step 3	Go to the table for the DTC indicated
3	Clear SRS DTCs. Turn the ignition OFF for at least 30 seconds. Observe the AIRBAG indicator as the ignition is turned ON. Does the AIRBAG indicator flashes seven times and turn off?	-	System OK	Go to Step 4
4	Turn the ignition to LOCK and remove the key. Disconnect the SDM connector. Replace the SDM. Connect SDM connector and ensure that all components are properly mounted. Is the repair complete?	-	Go to "Diagnostic System Check"	-

AIRBAG WARNING LAMP STAYS ON WITH IGNITION SWITCH ON

Circuit Description

The AIRBAG indicator will stay on if the sensing and diagnostic module (SDM) connector is not securely attached to the SDM. There is a shorting bar in SDM connector which completes the circuit between the indicator lamp circuit and ground. The shorting bar is disengaged when the connector is properly attached.

When the ignition switch is first turned to ON, ignition voltage applied to the instrument fuse for the indicator lamp and also to the airbag fuse for input terminal A1. If ignition voltage is outside the range of 9 to 16 volts, the AIRBAG indicator will come on and stay on with no DTCs set. A short ground between the SDM and the indicator lamp could also cause the AIRBAG indicator to stay on.

Airbag Warning Lamp Stays On With Ignition Switch On

Step	Action	Value(s)	Yes	No
1	Check the SDM connector to verify that it is properly connected to the SDM. Is the SDM connector properly connected?	-	Go to Step 3	Go to Step 2
2	Connect the SDM connector. Is the repair complete?	-	System OK	-
3	Turn the ignition OFF. Disconnect the SDM connector Turn the ignition ON. Check the voltage at SDM connector terminal A10. Is the ignition voltage greater than the specified value?	9 V	Go to SDM Integrity Check	Go to Step 4
4	Turn the ignition ON. Check the voltage supply to the airbag fuse F19. Is the voltage within the specified value?	9-16 V	Go to Step 6	Go to Step 5
5	Repair the power supply to the airbag fuse. Is the repair complete?	-	System OK	-
6	Check the airbag fuse. Is the fuse in good condition?	-	Go to Step 8	Go to Step 7
7	Replace the airbag fuse F19. Is the repair complete?	-	System OK	-
8	Turn the ignition to LOCK and remove the key. Disconnect the SDM connector. Check for open circuit between terminal A10 of the SDM and the airbag fuse F19. Is there an open circuit?	-	Go to Step 9	Go to Step 10
9	Repair the open circuit between the SDM and airbag fuse F19. Is the repair complete?	-	System OK	-
10	Repair the short to ground circuit between the AIRBAG indicator lamp and terminal A18 of the SDM. Is the repair complete?	-	System OK	-

DIAGNOSTIC TROUBLE CODE (DTC) B0016 PASSENGER FRONTAL AIRBAG DEPLOYMENT LOOP RESISTANCE LOW

Circuit Description

The SDM checks the wiring connection to the passenger airbag module by letting the infinitesimal current flow through the internal circuit and verify the resistance.

DTC B0016 Will Set When

The resistance of passenger airbag deployment loop is lower than 1.4 ohms.
The shorting bar is damaged and then the SDM must be replaced .

DTC B0016 - Passenger Frontal Airbag Deployment Loop resistance Low

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental inflatable re-straints(SIR) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened, and the arrow on the SDM must be point toward the front of the vehicle to ensure proper operation of the SIR. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute to discharge the SDM charger.	-	Go to Step 2	-
2	Visually inspect the connector and the wiring of passenger airbag. Is the wiring damaged?	-	Go to Step 5	Go to Step 3
3	Confirm the ignition switch "OFF". Disconnect the connector of passenger airbag module. Disconnect the connector of SDM wiring. Check the resistance between the terminal 1 and 2 of the passenger airbag module. Is the resistance ?	∞	Go to Step 4	Go to Step 5
4	Replace the SDM. Confirm the ignition switch "ON". Erase the DTC using scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	-	The system is OK	Go to Step 6
5	Replace the airbag wiring.	-	-	-
6	Replace the passenger airbag module.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0017 PASSENGER FRONTAL AIRBAG DEPLOYMENT LOOP OPEN

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diagnose critical malfunctions within itself. After passing these tests, ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Passenger low terminal A4 is grounded through a current sink, and the passenger current source is connected to the passenger high terminal to allow a known amount of current to flow. By monitoring the voltage difference between passenger high and passenger low, the SDM calculates the combined resistance of the passenger inflator module, the harness wiring, and the connector terminal contacts.

DTC 17 Will Set When

Resistance of the passenger deployment loop is higher than 4.5 ohms for 500 milliseconds.
Voltage at passenger high is less than 2 volts and resistance of the passenger deployment loop is equal to or higher than 4.5 ohms for 500 milliseconds.
Ignition voltage is within a specified value.

Action Taken

The SDM will turn on the AIRBAG indicator and set a diagnostic trouble code (DTC) B0017.

DTC B0017 Will Clear When

The resistance between passenger high and passenger low is less than 4.5 ohms for 500 milliseconds.
Voltage at passenger high is higher than 2 volts and resistance of the passenger deployment loop is less than 4.5 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

An intermittent condition is likely to be caused by a poor connection, either at the passenger airbag connector or at terminals A3 and A4 of the SDM. An open wire in the passenger deployment loop will also set DTC B0017.

DTC B0017 - Passenger Frontal Airbag Deployment Loop Open

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental restraints system (SRS) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened and the arrow on the SDM must be pointing toward the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag connector. Inspect the terminals for damage or improper connection. Repair any damaged pins or terminals on the wiring harness side of the connector. If the airbag side of the connector is damaged, the passenger airbag must be replaced. If no damage was found, connect the passenger airbag yellow two-way connector and make sure it is seated properly. Turn the ignition ON. Is DTC still current?	-	Go to Step 3	System OK
3	Turn the ignition to LOCK and remove the key. Temporarily disconnect the two-way yellow connectors at the passenger airbag. Check terminals A3 and A4 at the SDM. Are there any loose wires or damaged pins or terminals?	-	Go to Step 4	Go to Step 5
4	Repair any loose or damaged pins or SDM terminals. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
5	Check for an open circuit between the SDM and the passenger airbag connector. Refer to "Diagnostic Illustration 1" in this section. Is there an open circuit?	-	Go to Step 6	Go to Step 7
6	Repair the open circuit between the SDM and the passenger inflator module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
7	Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Perform the SRS Diagnostic System Check. Is DTC B0017 still current?	-	Go to Step 8	System OK
8	Turn the ignition to LOCK and remove the key. Disconnect the yellow connector at the passenger airbag. Replace the passenger airbag module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0018 PASSENGER FRONTAL AIRBAG DEPLOYMENT LOOP SHORTED

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself. Upon passing these test ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Passenger low (terminal A4) is grounded through a current sink, and the passenger current source is connected to passenger high (terminal A3) to allow a known amount of current to flow. By monitoring the voltage difference between the passenger low (terminal A4) and passenger high (terminal A3), the SDM calculates the combined resistance of passenger inflator module, wiring harness, and connector terminal contacts.

DTC 16 Will Set When

The resistance of the passenger deployment loop is below a specified value. The test run once each ignition cycle during the resistance measurement test when

The resistance between passenger high and passenger low is less then 1.2 ohms for 500 milliseconds.
Ignition voltage is within a specigied value.

Action Taken

The SDM will turn on the AIRBAG indicator and set diagnostic trouble code (DTC) B0018.

DTC B0018 Will Clear When

The resistance between passenger high and passenger low is higher then 1.2 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

All intermittent condition is likely to be the caused by a short between the passenger high and low circuits, a short between passenger high and driver high circuits, or a short between passenger high and the driver low circuit. The problem could also be a malfunctioning shorting bar in passenger airbag connector, which would require replacement of passenger airbag module. The test for this DTC is run only while the AIRBAG indicator is performing the turn-on test. When a scan tool CLEAR CODES command is issued and the malfunction is still present, the DTC will not reappear until next ignition cycle.

DTC B0018 - Passenger Frontal Airbag Deployment Loop Shorted

Caution : The sensing and diagnosis module (SDM) can maintain sufficient voltage to deploy the air-bags and pretensioners for 0.15 seconds after the ignition is OFF and the fuse has been removed. If the airbags or pretensioners are not disconnected, do not begin service until one minute has passed after disconnecting power to the SDM. Otherwise, injury could result.

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental restraints system (SRS) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened, and the arrow on the SDM must be pointing toward of the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Connect the scan tool to the Data Link Connector (DLC). Turn the ignition ON. Is DTC B0018 also current?	-	Go to Step 3	Go to Step 4
3	Turn the ignition to LOCK and remove the key. Disconnect the yellow airbag connectors at the steering column, at the passenger airbag . Repair the short between the driver airbag circuit and the passenger airbag circuit. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
4	Turn the ignition to LOCK and remove the key. Make sure the passenger airbag module yellow two-way connector is seated properly. Is the yellow two-way passenger airbag connector seated properly?	≈0V	Go to Step 6	Go to Step 5
5	Seat the passenger airbag yellow two-way connector. Make sure all SRS components are reconnected- and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
6	Temporarily disconnect the passenger airbag, the yellow clock spring connector on the steering column. Check for a short between the passenger high and passenger low circuits. Refer to "Diagnostic Illustration 2" in this section. Is there a short between the passenger high and low circuits?	-	Go to Step 7	Go to Step 8
7	Repair the short between the passenger high circuit and the passenger low circuit. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
8	Check for a short between the passenger high and driver low circuits. Refer to "Diagnostic Illustration 3" in this section. Is there a short between the passenger high and driver low circuits (SDM terminals A3 and A4)?	-	Go to "SRS Diagnostic System Check"	-
9	Repair the short between the passenger high circuit and the driver low circuit. Make sure all SRS components are reconnected and all components are properly mounted. Command CLEAR CODES with the scan tool. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
10	Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Perform the SRS Diagnostic System Check. Is DTC B0018 still current?	-	Go to Step 11	System OK
11	Disconnect the passenger airbag electrical connector. Replace the passenger airbag module. Make sure all SRS components are reconnected and all components are properly mounted. Command CLEAR CODES with the scan tool. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0022 DRIVER FRONTAL AIRBAG DEPLOYMENT LOOP RESESTANCE LOW

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module(SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself.

Upon passing these test ignition and deployment loop voltages are measured to ensure that they are within their normal voltage ranges. The SDM monitors the voltages at the driver low and the passenger low to detect shorts to ground or voltage in the deploy loops.

DTC B0022 Will Set When

The resistance of driver airbag deployment loop is lower than 1.8 ohms.
The shorting bar is damaged and then the SDM must be replaced .

DTC B0022 - Driver Frontal Airbag Deployment Loop Resistance Low

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute to discharge the SDM charger.	-	Go to Step 2	-
2	Visually inspect the connector and the wiring of 2 driver airbag. Is the airbag wiring damaged?	-	Go to Step 6	Go to Step 5
3	Confirm the ignition switch "OFF". Remove the driver airbag module. Disconnect the connector of SDM wiring. Check the resistance between the terminal 1 and 2 of the airbag module. Is the resistance in the specification range?	1~3Ω	Go to Step 4	Go to Step 5
4	Replace the SDM. Confirm the ignition switch "ON". Erase the DTC using scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	∞ 1.0 V	The system is OK.	Go to Step 8
5	Remove the connector from the clock spring wiring. Check the resistance between the terminal 1 and 2 of clock spring.	-	Go to Step 6	Go to Step 7
6	Replace the airbag wiring.	-	-	-
7	Replace the clock spring.	-	-	-
8	Replace the driver airbag module.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0024 DRIVER FRONTAL AIRBAG DEPLOYMENT LOOP SHORTED

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diagnose critical malfunctions within itself. Upon passing these tests, ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Driver low terminal A3 is grounded through a current sink, and the driver current source is connected to the driver high terminal A1 to allow a known amount of current to flow. By monitoring the voltage difference between driver high and driver low, the SDM calculates the combined resistance of the driver inflator module, the clock spring, the harness wiring, and the connector terminal contacts.

DTC B0024 Will Set When

Resistance of the driver deployment loop is less than 1.7 ohms for 500 milliseconds.
Ignition voltage is within a specified value.

Action Taken

The SDM will turn on the AIRBAG indicator and set a diagnostic trouble code (DTC) B0024.

DTC B0024 Will Clear When

Resistance of the driver deployment loop is higher than or equal to 1.7 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

An intermittent condition is likely to be caused by a short between driver high and driver low or between driver high and passenger low. This condition could also be caused by a faulty clock spring or a faulty shorting bar in the clock spring steering column connector. The test for this DTC is run only while the AIRBAG indicator is performing the turn-on test. When a scan tool CLEAR CODES command is issued and the malfunction is still present, the DTC will not reappear until the next ignition cycle.

DTC B0024 - Driver Frontal Airbag Deployment Loop Shorted

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Connect the scan tool to the Data Link Connector (DLC). Turn the ignition ON. Is the DTC still current?	-	Go to Step 3	Go to Step 4
3	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag, the yellow clock spring connector on the steering column. Repair the short from driver high to passenger high. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
4	Disconnect the clock spring yellow two-way connector located on the steering column. Inspect the connector for damage. Is a faulty component, connector, terminal, or wire detected?	-	Go to Step 5	Go to Step 6
5	Replace the faulty connector, component, terminal or wire. Connect all SRS components. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
6	Visually check the SDM connector terminals A1 and A2 for shorted terminals or wires. Is a problem found?	-	Go to Step 7	Go to Step 8
7	Replace the shorted terminals or wires. Connect all SRS components. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
8	With the SDM disconnected, use an ohmmeter to check the SDM harness connector for a short between terminal A1 (driver high) and terminal A4 (passenger low). Refer to "Diagnostic Illustration 10" in this section. Is there a short between driver high and passenger low?	0 Ω	Go to Step 9	Go to Step 10
9	Repair the short circuit. Connect all SRS components. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
10	Remove the driver airbag. Reconnect the yellow clock spring connector on the steering column. At the SDM connector, use an ohmmeter to check for a short between terminal A1 (driver high) and terminal A2 (driver low). Refer to "Diagnostic Illustration 11" in this section. Is there a short circuit between the driver high and driver low circuits?	0 Ω	Go to Step 12	Go to Step 11
11	Replace the driver airbag. Connect all SRS components. Perform the Diagnostic System Check. Is the DTC still current?	-	Go to Step 15	System OK
12	Disconnect the yellow clock spring connector on the steering column. At the SDM connector, use an ohmmeter to check for a short between terminal A1 (driver high) and terminal A2 (driver low). Refer to "Diagnostic Illustration 11" in this section. Is there a short circuit between the driver high and driver low circuits?	0 Ω	Go to Step 14	Go to Step 15
13	Turn the steering wheel to the straight-ahead position. Disconnect the passenger airbag and the yellow clock spring connector on the steering column. Replace the clock spring. Connect all SRS components. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
14	Repair the shorted driver high and driver low wires between the SDM and the clock spring. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
15	Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0026 DRIVER FRONTAL AIRBAG DEPLOYMENT LOOP OPEN

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diagnose critical malfunctions within itself. Upon passing these tests, ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Driver low terminal A2 is grounded through a current sink, and the driver current source is connected to the driver high terminal to allow a known amount of current to flow. By monitoring the voltage difference between driver high and driver low, the SDM calculates the combined resistance of the driver inflator module, the harness wiring, and the connector terminal contacts.

DTC B0026 Will Set When

Resistance of the driver deployment loop is higher than 4.5 ohms for 500 milliseconds.
Voltage at the driver high is less than 2 volts and the resistance of the driver deployment loop is higher than or equal to 4.5 ohms for 500 milliseconds.
Ignition voltage is within normal operation range.

Action Taken

The SDM will turn on the AIRBAG indicator and set a diagnostic trouble code (DTC) B0026.

DTC B0026 Will Clear When

Resistance of the driver deployment loop is less than or equal to 4.5 ohms for 500 milliseconds.
Voltage at the driver high is higher than 2 volts and the resistance of the driver deployment loop is less than 4.5 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

An intermittent condition is likely to be caused by a poor connection, either at the driver airbag or clock spring connectors or SDM terminals A1 and A2. An open wire in the driver deployment loop will also set DTC B0026. To test for a faulty clock spring, clear the DTCs, then turn the steering wheel back and forth with the ignition switch ON. If the AIRBAG indicator comes on and DTC B0026 has set again, it is likely that the clock spring is faulty.

DTC B0026 - Driver Frontal Airbag Deployment Loop Open

Caution : During service procedures, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power up the SRS when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened, and the SDM arrow must be pointing toward the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Important : Avoid deforming the terminals of the clock spring-to-airbag connector.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Make sure the clock spring yellow two-way connector (located on the steering column) is seated properly. Is the yellow clock spring connector seated properly?	-	Go to Step 4	Go to Step 3
3	Seat the clock spring yellow two-way connector. Make sure all SRS components are reconnected and all components are properly mounted. Turn the ignition ON. Is DTC B0026 still current?	-	Go to Step 4	Go to "SRS Diagnostic System Check"
4	Turn the ignition to LOCK and remove the key. Disconnect the yellow clock spring connector on the steering column. Connect a jumper between the terminals on the SDM side of the clock spring connector. Refer to "Diagnostic Illustration 8" in this section. Turn the ignition ON. Is DTC B0026 still current?	-	Go to Step 9	Go to Step 5
5	Turn the ignition to LOCK and remove the key. Examine the connection at the driver airbag. Is the driver airbag connector seated properly?	-	Go to Step 7	Go to Step 6
6	Properly seat the connector to the driver airbag. Connect the yellow clock spring connector on the lower steering column. Turn the ignition ON. Is DTC B0026 still current?	-	Go to Step 7	System Check"
7	Turn the ignition to LOCK and remove the key. Disconnect the yellow clock spring connector on the steering column. Temporarily remove the driver airbag. Connect a jumper between the terminals of the clock spring-to-driver airbag connector. Refer to "Diagnostic Illustration 9" in this section. Use an ohmmeter to check the continuity of clock spring. Is the wire open?	-	Go to Step 9	Go to Step 8
8	Turn the ignition to LOCK and remove the key. Disconnect the yellow clock spring connector on the steering column. Replace the driver airbag. Connect all SRS components and the scan tool. Turn the ignition ON. Is DTC B0026 still current?	-	Go to Step 1	System Check"
9	Turn the ignition to LOCK and remove the key. Turn the steering wheel to the straight-ahead position. Disconnect the yellow clock spring connector on the steering column. Replace the clock spring. Connect all SRS components and the scan tool. Turn the ignition ON. Is DTC B0026 still current?	-	Go to Step 1	Go to Step 10
10	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag, the yellow clock spring connector on the steering column. Disconnect the SDM connector. Examine the pins and terminals at the SDM terminals A1 and A2. Are there any loose wires or backed-out terminals?	-	Go to Step 11	Go to Step 12
11	Repair any loose wires or damaged pins or terminals. Connect all SRS components and the scan tool. Turn the ignition ON. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
12	Use an ohmmeter to check both driver deployment wires for an open circuit between the SDM connector (terminals A1 and A2) and the clock spring connector. Refer to "Diagnostic Illustration 16" in this section. Is either wire open?	∞	Go to Step 13	Go to Step 14
13	Replace any open wires between the SDM and the clock spring. Connect all SRS components and the scan tool. Turn the ignition ON. Is DTC B0026 still current?	-	Go to Step 14	-
14	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag, the yellow clock spring connector on the steering column. Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Command CLEAR CODES with the scan tool. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0028 PASSENGER SIDE AIRBAG DEPLOYMENT LOOP RESISTANCE LOW

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module(SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself.

DTC B0028 Will Set When

The resistance of passenger side airbag deployment loop is lower than 1.4 ohms.
The shorting bar is damaged and then the SDM must be replaced .

DTC B0028 - Passenger Side Airbag Deployment loop Resistance Low

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Disconnect the connector of the passenger side airbag module. Disconnect the connector of SDM wiring. Check the resistance between the terminal 1and 2 of passenger side airbag module. Is the resistance ?	-	Go to Step 2	Go to Step 4
2	Replace the SDM. Confirm the ignition switch "ON". Erase the DTC using scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	-	The system is OK.	Go to Step 3
3	Replace the passenger side airbag module.	-	-	-
4	Replace the airbag wiring.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0029 PASSENGER SIDE AIRBAG DEPLOYMRNT LOOP OPEN

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diagnose critical malfunctions within itself. After passing these tests, ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Passenger low terminal C3 is grounded through a current sink, and the passenger current source is connected to the passenger high terminal to allow a known amount of current to flow. By monitoring the voltage difference between passenger high and passenger low, the SDM calculates the combined resistance of the passenger inflator module, the harness wiring, and the connector terminal contacts.

DTC 17 Will Set When

Resistance of the passenger deployment loop is higher than 4.5 ohms for 500 milliseconds.
Voltage at passenger high is less than 2 volts and resistance of the passenger deployment loop is equal to or higher than 4.5 ohms for 500 milliseconds.

Action Taken

The SDM will turn on the AIRBAG indicator and set a diagnostic trouble code (DTC) B0029.

DTC B0029 Will Clear When

The resistance between passenger high and passenger low is less than 4.5 ohms for 500 milliseconds.
Voltage at passenger high is higher than 2 volts and resistance of the passenger deployment loop is less than 4.5 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

An intermittent condition is likely to be caused by a poor connection, either at the passenger side airbag connector or at terminals C3 and C4 of the SDM. An open wire in the passenger side airbag deployment loop will also set DTC B0029.

DTC B0029 - Passenger Side Airbag Deployment Loop Open

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental restraints system (SRS) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened and the arrow on the SDM must be pointing toward the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Disconnect the passenger side airbag connector. Inspect the terminals for damage or improper connection. Repair any damaged pins or terminals on the wiring harness side of the connector. If theairbag side of the connector is damaged, the passenger side airbag must be replaced. If no damage was found, connect the passenger side airbag yellow two-way connector and make sure it is seated properly. Turn the ignition ON. Is DTC still current?	-	Go to Step 3	System OK
3	Turn the ignition to LOCK and remove the key. Temporarily disconnect the two-way yellow connectors at the passenger airbag. Check terminals C3 and C4 at the SDM. Are there any loose wires or damaged pins or terminals?	-	Go to Step 4	Go to Step 5
4	Repair any loose or damaged pins or SDM terminals. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
5	Check for an open circuit between the SDM and the passenger side airbag connector. Refer to "Diagnostic Illustration 1" in this section. Is there an open circuit?	-	Go to Step 6	Go to Step 7
6	Repair the open circuit between the SDM and the passenger side airbag module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
7	Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Perform the SRS Diagnostic System Check. Is DTC B0029 still current?	-	Go to Step 8	System OK
8	Turn the ignition to LOCK and remove the key. Disconnect the yellow connector at the passenger side airbag. Replace the passenger side airbag module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0030 PASSENGER SIDE AIRBAG DEPLOYMENT LOOP SHORTED

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself. Upon passing these test ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Passenger low (terminal C4) is grounded through a current sink, and the passenger current source is connected to passenger high (terminal C3) to allow a known amount of current to flow. By monitoring the voltage difference between the passenger low (terminal C4) and passenger high (terminal C3), the SDM calculates the combined resistance of passenger side airbag module, wiring harness, and connector terminal contacts.

DTC B0030 Will Set When

The resistance of the passenger side airbag deployment loop is below a specified value. The test run once each ignition cycle during the resistance measurement test when

The resistance between passenger high and passenger low is less then 1.2 ohms for 500 milliseconds.
gnition voltage is within a specifide value.

Action Taken

The SDM will turn on the AIRBAG indicator and set diagnostic trouble code (DTC) B0030.

DTC B0030 Will Clear When

The resistance between passenger high and passenger low is higher then 1.2 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

All intermittent condition is likely to be the caused by a short between the passenger high and low circuits, a short between passenger high and driver high circuits, or a short between passenger high and the driver low circuit. The problem could also be a malfunctioning shorting bar in passenger side airbag connector, which would require replacement of passenger side airbag module. The test for this DTC is run only while the AIR-BAG indicator is performing the turn-on test. When a scan tool CLEAR CODES command is issued and the malfunction is still present, the DTC will not reappear until next ignition cycle.

DTC B0030 - Passenger Side Airbag Deployment Loop Shorted

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental restraints system (SRS) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened, and the arrow on the SDM must be pointing toward of the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Connect the scan tool to the Data Link Connector (DLC). Turn the ignition ON. Is DTC B0030 also current?	-	Go to Step 3	Go to Step 4
3	Turn the ignition to LOCK and remove the key. Disconnect the yellow airbag connectors at the steering column, at the passenger side airbag . Repair the short between the driver side airbag high circuit and the passenger side airbag high circuit. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
4	Turn the ignition to LOCK and remove the key. Make sure the passenger side airbag module yellow two-way connector is seated properly. Is the yellow two-way passenger side airbag connector seated properly?	≈0V	Go to Step 6	Go to Step 5
5	Seat the passenger side airbag yellow two-way connector. Make sure all SRS components are reconnected- and all components are properly mounted. Is the repair complete?	≈0V	Go to "SRS Diagnostic System Check"	-
6	Temporarily disconnect the passenger side airbag, the yellow clock spring connector on the steering column. Check for a short between the passenger high and passenger low circuits. Refer to "Diagnostic Illustration 2" in this section. Is there a short between the passenger high and low circuits?	-	Go to Step 7	Go to Step 8
7	Repair the short between the passenger high circuit and the passenger low circuit. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
8	Check for a short between the passenger high and driver low circuits. Refer to "Diagnostic Illustration 3" in this section. Is there a short between the passenger high and driver low circuits (SDM terminals C3 and C4)?	-	Go to Step 9	Go to Step 10
9	Repair the short between the passenger high circuit and the driver low circuit. Make sure all SRS components are reconnected and all components are properly mounted. Command CLEAR CODES with the scan tool. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
10	Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Perform the SRS Diagnostic System Check. Is DTC B0030 still current?	-	Go to Step 11	System OK
11	Disconnect the passenger side airbag electrical connector. Replace the passenger side airbag module. Make sure all SRS components are reconnected and all components are properly mounted. Command CLEAR CODES with the scan tool. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0040 DRIVER SIDE AIRBAG DEPLOYMENT LOOP RESISTANCE LOW

Circuit Description

DTC B0040 Will Set When

The resistance of side driver side airbag deployment loop is lower than 1.4 ohms.
The shorting bar is damaged and then the SDM must be replaced .

DTC B0040 - Driver Side Airbag deployment Loop Resistance Low

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Disconnect the connector of the driver side airbag module. Disconnect the connector of SDM wiring. Check the resistance between the terminal C1 and C2 of driver side airbag module. Is the resistance ? Is the SRS Diagnostic System Check complete?	-	Go to Step 2	Go to Step 4
2	Replace the SDM. Confirm the ignition switch "ON". Erase the DTC using scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	-	The system is OK.	Go to Step 3
3	Replace the driver side airbag module.	-	-	-
4	Replace the airbag wiring.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0041 DRIVER SIDE AIRBAG DEPLOYMENT LOOP OPEN

Circuit Description

DTC B0041 Will Set When

The resistance of driver side airbag deployment loop is higher than 3.0 ohms.

DTC B0041 - Driver Side Airbag deployment Loop Open

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Visually inspect the connector and the wiring of driver side airbag. Is the connector disconnected?	-	Go to Step 2	Go to Step 3
2	Connect the connector and perform the SIR Diagnostic System Check.	-	Go to Step 5	Go to Step 4
3	Confirm the ignition switch "OFF". Disconnect the connector of the driver side airbag module. Disconnect the connector of SDM wiring. Check the resistance between the terminal C1, C2 of SDM and the terminal 1,2 of driver side airbag module. Is the resistance about 0(zero) ?	-	Go to Step 5	Go to Step 4
4	Replace the airbag wiring.	-	-	-
5	Replace the SDM. Confirm the ignition switch "ON". Erase the DTC using scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	-	The system is OK.	Go to Step 6
6	Replace the driver side airbag module.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0045 DRIVER SIDE AIRBAG DEPLOYMENT LOOP SHORTED

Circuit Description

The SDM checks the wiring connection to the driver side airbag module by letting the infinitesimal current flow through the internal circuit and verify the resistance.

DTC B0045 Will Set When

The side airbag wiring of drivers high is shorted to ground.
The side airbag wiring of drivers low is shorted to ground.

DTC B0045 - Driver Side Airbag Deployment Loop Shorted

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute the SDM charger to be discharged.	-	Go to Step 2	-
2	Visually check any damage for the airbag wiring. Is the airbag wiring damaged?	-	Go to Step 4	Go to Step 3
3	Check the resistance between the SDM and the high, low terminal of driver side airbag module and the ground. Is the resistance 10K??	-	Go to Step 5	Go to Step 4
4	Replace the airbag wiring.	-	-	-
5	Replace the SDM. Confirm the ignition switch "ON". Remove the DTC with scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	-	The system is OK.	Go to Step 4
6	Replace the driver side airbag module.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0051 DEPLOYMENT COMMANDED

Circuit Description

The sensing and diagnostic module (SDM) contains a sensing device which converts vehicle velocity changes to an electrical signal. The electrical signal generated is processed by the SDM and then compared to a value stored in memory. When the generated signal exceeds the stored value, additional signal processing is performed and the generated signals are compared to signals stored in memory. When two of the generated signals exceed the stored values, the SDM will cause sufficient current to flow through the inflator modules to deploy the airbags and cause DTC B0051 to be set.

DTC B0051 Will Set When

The SDM detects a frontal crash within 30 degrees of the centerline of the vehicle, of sufficient force to warrant deployment of the airbags.

Action Taken

The SDM turns on the AIRBAG indicator, records crash data, and sets a DTC B0051.

DTC B0051 Will Clear When

The SDM is replaced. This code cannot be cleared with a scan tool.

DTC B0051 - Deployment Commanded

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Check for deployed airbags. Have the airbags deployed?	-	Go to Step 3	Go to Step 4
3	Remove the airbag fuse. Turn the steering wheel to the straight-ahead position. Perform inspections and replace components as directed in "Repairs and Inspections Required After An Accident" in this section. Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Reinstall the airbag fuse. Use a scan tool to clear SRS trouble codes. Are the repairs complete?	-	Go to "SRS Diagnostic System Check"	-
4	Inspect the front of the vehicle and undercarriage for signs of impact. Are there any signs of impact?	-	Go to Step 3	Go to Step 5
5	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag, the yellow clock spring connector on the steering column. Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Are the repairs complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0053 DEPLOYMENT COMMANDED WITH LOOP FAULTS PRESENT

Circuit Description

DTC B0053 Will Set When

The SDM detects a frontal crash within to 30 degrees from the centerline of the vehicle, of sufficient force to warrant deployment of the airbags.
An inflator circuit fault is present.

Action Taken

The SDM turns ON the AIRBAG indicator, records crash data, and sets a DTC B0053.

DTC B0053 Will Clear When

The SDM is replaced. This code cannot be cleared with a scan tool.

DTC B0053 - Deployment Commanded with Loop Faults Present

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Check for deployed airbags. Have the airbags deployed?	-	Go to Step 3	Go to Step 4
3	Remove the airbag fuse. Turn the steering wheel to the straight-ahead position. Perform inspections and replace components as directed in "Repairs and Inspections Required After an Accident" in this section. Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Reinstall the airbag fuse. Use a scan tool to clear SRS trouble codes. Are the repairs complete?	-	Go to "SRS Diagnostic System Check"	-
4	Inspect the front of the vehicle and undercarriage for signs of impact. Are there any signs of impact?	-	Go to Step 3	Go to Step 5
5	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag, and the yellow clock spring connector on the steering column. Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Are the repairs complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0057 PASSENGER BELT PRETENSIONER DEPLOMENT LOOP RESISTANCE LOW

Circuit Description

The SDM checks the wiring connection to the passenger belt pretensioner module by letting the infinitesimal current flow through the internal circuit and verify the resistance.

DTC B0057 Will Set When

The resistance of passenger belt pretensioner deploy loop is lower than 1.4 ohms.
The shorting bar is damaged and then the SDM must be replaced .

DTC B0057 - Passenger Belt Pretensioner Deployment Loop Resistance Low

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Visually inspect the connector and the wiring of passenger belt pretensioner. Is the connector disconnected?	-	Go to Step 2	Go to Step 3
2	Connect the connector and perform the SIR Diagnostic System Check.	-	-	-
3	Confirm the ignition switch "OFF". Disconnect the connector of the passenger belt pretensioner. Disconnect the connector of SDM wiring. Check the resistance between the terminal 1 and 2 of passenger belt pretensioner. Is the resistance?	∞	Go to Step 4	Go to Step 6
4	Replace the SDM. Confirm the ignition switch "ON". Erase the DTC using scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	-	The system is OK.	Go to Step 5
5	Replace the passenger belt pretensioner.	-	-	-
6	Replace the the airbag wiring.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0058 PASSENGER SIDE BELT PRETENSIONER DEPLOYMENT LOOP OPEN

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diag-nose critical malfunctions within itself. After passing these tests, ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Passenger belt preten-sioner low terminal A7 is grounded through a current sink, and the right side belt pretensioner current source is connected to the passenger belt pretensioner high ter-minal to allow a known amount of current to flow. By monitoring the voltage difference between passenger belt pretensioner high and passenger belt pretensioner low, the SDM calculates the combined resistance of the passenger belt pretensioner inflator module, the har-ness wiring, and the connector terminal contacts.

DTC B0058 Will Set When

Resistance of the passenger belt pretensioner de-ployment loop is higher than 4.5 ohms for 500 milli-seconds.
Voltage at passenger belt pretensioner high is less than 2 volts and resistance of passenger belt pretensioner deployment loop is higher than or equal to 4.5 ohms for 500 milliseconds.
Ignition voltage id within normal operation range.

Action Taken

The SDM will turn on the AIRBAG indicator and set a diagnostic trouble code (DTC) B0058.

DTC B0058 Will Clear When

Resistance of the passenger belt pretensioner de-ployment loop is less than or equal to 4.5 ohms for 500 milliseconds.
Voltage at passenger pretensioner high is higher than 2 volts and resistance of passenger belt pretensioner deployment loop is less than 4.5 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

An intermittent condition is likely to be caused by a poor connection at the passenger belt pretensioner connec-tor, connector C221, or at terminals A7 and A8 of the SDM. An open wire in the passenger belt pretensioner deployment loop will also set DTC B0058.

DTC B0058 - Passenger Belt Pretensioner Deployment Loop Open

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Disconnect the passenger belt pretensioner airbag connector. Inspect the terminals for damage or improper connection. Repair any damaged pins or terminals on the wiring harness side of the connector. If the pigtail or connector of the belt pretensioner is damaged, the passenger belt pretensioner must be replaced. If no damage was found, connect the passenger belt pretensioner connector and make sure it is seated properly. Turn the ignition ON. Is the DTC still current?	-	Go to Step 3	System OK
3	Turn the ignition to LOCK and remove the key. Temporarily disconnect the right side belt pretensioner. Check terminals A7 and A8 at the SDM and terminal 2 and 1 at the C221. Are there any loose wires or damaged pins or terminals?	-	Go to Step 4	Go to Step 5
4	Repair any loose or damaged pins or SDM terminals. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
5	Check for an open circuit between the SDM and the passenger belt pretensioner connector. Refer to "Diagnostic Illustration 18" in this section. Is there an open circuit?	-	Go to Step 6	Go to Step 7
6	Repair the open circuit between the SDM and the passenger belt pretensioner module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
7	Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Perform the SRS Diagnostic System Check. Is DTC B0058 still current?	-	Go to Step 8	System OK
8	Turn the ignition to LOCK and remove the key. Disconnect the connector at the passenger belt pretensioner. Replace the passenger belt pretensioner module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0059 PASSENGER BELT PRETENSIONER DEPLOYMENT LOOP SHORTED

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diagnose critical malfunctions within itself. Upon passing these tests, ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Passenger belt preten-sioner low terminal A7 is grounded through a current sink, and the passenger belt pretensioner current source is connected to the passenger belt pretensioner high terminal to allow a known amount of current to flow. By monitoring the voltage difference between the passenger belt pretensioner high and passenger belt pre-tensioner low terminals, the SDM calculates the combined resistance of the passenger belt pretensioner inflator module, harness wiring, and connector terminal contacts.

DTC B0059 Will Set When

Resistance of the passenger belt pretensioner deployment loop is less than 1.2 ohms for 500 milliseconds.
Ignition voltage is within normal operation range.

Action Taken

The SDM will turn ON the AIRBAG indicator and set a diagnostic trouble code (DTC) B0059.

DTC B0059 Will Clear When

Resistance of the passenger belt pretensioner deployment loop is higher than or equal to 1.2 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

An intermittent condition is likely to be caused by a short between the passenger belt pretensioner high and low circuits, a short between the passenger belt pretension-er high circuit and the left side belt high circuit, a short on C221 or a short between the passenger belt pretension-er high circuit and the left side belt low circuit. The problem could also be a malfunctioning shorting bar in the right side belt pretensioner airbag connector, which would require replacement of the passenger belt preten-sioner airbag module. The test for this DTC is run only while the AIRBAG indicator is performing the turn-on test. When a scan tool CLEAR CODES command is issued while the malfunction is still present, the DTC will not reappear until the next ignition cycle.

DTC B0059 - Passenger Belt Pretensioner Deployment Loop Shorted

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Connect the scan tool to the Data Link Connector DLC). Turn the ignition ON. Is DTC B0059 also current?	-	Go to Step 3	Go to Step 4
3	Turn the ignition to LOCK and remove the key. Disconnect the yellow airbag connectors at the steering column, passenger airbag and connector C221. Repair the short between the passenger belt pretensioner high circuit and the driver belt pretensioner high circuit. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
4	Turn the ignition to LOCK and remove the key. Disconnect the connector C221 and the passenger belt pretensioner connector. Measure the resistance between terminal 1 and 2 of passenger side belt pretensioner. Refer to "Diagnostic illustration 17" in this section. Is the resistance equal to specified value?	∞	Go to Step 5	Go to Step 5
5	Replace the sensing and diagnostic module (SDM). The arrow must be pointing to the front of the vehicle. Connect all the wiring connector. Clear all trouble code with scanner. Is the repair complete?	-	System OK	Go to Step 6
6	Replace the passenger belt pretensioner. Is the repair complete?	-	System OK	-
7	Repair the short between the passenger belt pretensioner high circuit and the passenger belt pretensioner low circuit or replace the wiring harness. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0061 AIRBAG WARNING LAMP FAILURE

Circuit Description

When the ignition switch is first turned ON, ignition voltage is applied to the indicator lamp and also to the sensing and diagnostic module (SDM) input terminal A10. The SDM responds by flashing the instrument cluster AIRBAG indicator seven times. If the SDM cannot detect voltage on the indicator circuit, a DTC B0061 will be set.

The SDM also attempts to turn on the AIRBAG indicator, but the indicator will not turn on if inputs have been correctly processed.

DTC B0061 Will Set When

During continuous monitoring, the SDM fails to detect voltage at terminal A18, the input terminal for the AIR-BAG indicator, for 500 milliseconds.

Action Taken

The SDM attempts to turn on the AIRBAG indicator, and it sets a DTC B0061.

DTC B0061 Will Clear When

The ignition switch is turned OFF.
The problem is repaired.

DTC B0061 - AIRBAG Warning Lamp Failure

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Check the instrument panel fuse F16. Is fuse F16 blown?	-	Go to Step 3	Go to Step 4
3	Check for a short circuit and repair if necessary. Replace the fuse. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
4	Turn the ignition ON. Check the power supply to fuse F16. Is the voltage equal to the specified value?	11-14 V	Go to Step 6	Go to Step 5
5	Repair the power supply to fuse F16. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
6	Remove the instrument cluster. Check the AIRBAG indicator bulb. Is the bulb in good condition?	-	Go to Step 8	Go to Step 7
7	Replace the AIRBAG indicator bulb. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
8	Turn the ignition ON. Check the voltage at instrument cluster connector B9. Is the voltage at B9 equal to the specified value?	11-14 V	Go to Step 10	Go to Step 9
9	Repair the open circuit between the instrument panel fuse F16 and instrument cluster connector B9. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
10	Test the instrument cluster printed circuit for continuity between connectors B9 and B10. Is there continuity between B9 and B10 on the printed circuit?	-	Go to Step 12	Go to Step 11
11	Replace the instrument cluster. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
12	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag, the yellow clock spring connector on the steering column, and connector C221. Disconnect the SDM electrical connector. Turn the ignition ON. Check the voltage at terminal A18 of the SDM connector. Is the voltage equal to the specified value?	11-14 V	Go to Step 14	Go to Step 13
13	Repair the open circuit between the instrument cluster and the SDM connector terminal A18. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
14	Turn the ignition to LOCK and remove the key. Disconnect the passenger airbag, the yellow clock spring connector on the steering column and connector C221. Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0064 DRIVER BELT PRETENSIONER DEPLOYMENT LOOP RESISTANCE LOW

Circuit Description

The SDM checks the wiring connection to driver belt pretensioner module by letting the infinitesimal current flow through the internal circuit and verify the resistance.

DTC B0064 Will Set When

The resistance of driver belt pretensioner deploy loop is lower than 1.4 ohms.
The shorting bar is damaged and then the SDM must be replaced .

DTC B0064 - Driver Belt Pretensioner Deployement Loop Resistance Low

Caution : The sensing and diagnostic module(SDM) can maintain sufficient voltage to deploy the air-bags and pretensioners for 1 minute after the igni-tion is OFF and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not begin service until one minute has passed after disconnecting power to SDM. Otherwise, injury could result.

Caution : Caution: During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Never power the supplemental inflatable re-straints( SIR) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened, and the arrow on the SDM must be point toward the front of the vehicle to ensure proper operation of the SIR. The SDM could be acti-vated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute to discharge the SDM charger. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Visually inspect the connector and the wiring of driver belt pretensioner.	-	Go to Step 5	Go to Step 3
3	Confirm the ignition switch "OFF". Disconnect the connector of driver belt pretensioner. Disconnect the connector of SDM wiring. Check the resistance between the terminal 1 and 2 of driver belt pretensioner.	∞	Go to Step 4	Go to Step 5
4	Replace the SDM. Confirm the ignition switch "ON". Erase the DTC using scan tool. Perform the SIR Diagnostic System Check. Is the DTC removed?	-	The system is OK.	Go to Step 6
5	Replace the airbag wiring.	-	-	-
6	Replace the driver belt pretensioner.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0065 DRIVER SIDE BELT PRETENSIONER DEPLOYMENT LOOP OPEN

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diagnose critical malfunctions within itself. After passing these tests, Ignition 1 and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Driver belt pretensioner low terminal A5 is grounded through a current sink, and the driver belt pretensioner current source is connected to the driver belt pretensioner high terminal to allow a known amount of current to flow. By monitoring the voltage difference between driver belt pretensioner high and left side belt pretensioner low, the SDM calculates the combined resistance of the driver belt pretensioner inflator module, the harness wiring, and the connector terminal contacts.

DTC B0065 Will Set When

Resistance of the driver belt pretensioner deployment loop is higher than 4.5 ohms for 500 milliseconds.
Voltage at driver belt pretensioner high terminal is less than 2 volts and the resistance of the driver belt pretensioner is higher than or equal to 4.5 ohms for 500 milliseconds.
Ignition voltage is within the normal operation range.

Action Taken

The SDM will turn on the AIRBAG indicator and set a diagnostic trouble code (DTC) B0065.

DTC B0065 Will Clear When

Resistance of the driver belt pretensioner deployment loop is less than or equal to 4.5 ohms for 500 milliseconds.
Voltage at driver belt pretensioner high terminal is higher than 2 volts and the resistance of the driver belt pretensioner is less than 4.5 ohms for 500 milli- seconds.
The ignition switch turned to OFF.
The scan tool CLEAR CODES command received.

Diagnostic Aids

An intermittent condition is likely to be caused by a poor connection, at the driver belt pretensioner connector, connector C221, or at terminals A5 and A6 of the SDM. An open wire in the driver belt pretensioner deployment loop will also set DTC B0065.

DTC B0065 - Driver Belt Pretensioner Deployment Loop Open

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Disconnect the driver belt pretensioner airbag connector. Inspect the terminals for damage or improper connection. Repair any damaged pins or terminals on the wiring harness side of the connector. If the pigtail or connector of the belt pretensioner is damaged, the driver belt pretensioner must be replaced. If no damage was found, connect the driver belt pretensioner connector and make sure it is seated properly. Turn the ignition ON. Is DTC still current?	-	Go to Step 3	System OK
3	Turn the ignition to LOCK and remove the key. Temporarily disconnect the driver belt pretensioner. Check terminals A5 and A6 at the SDM and terminal 6 and 7 at the C221. Are there any loose wires or damaged pins or terminals?	-	Go to Step 4	Go to Step 5
4	Repair any loose or damaged pins or SDM terminals. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	-	-
5	Check for an open circuit between the SDM and the driver belt pretensioner connector. Refer to "Diagnostic Illustration 21" in this section. Is there an open circuit?	-	Go to Step 6	Go to Step 7
6	Repair the open circuit between the SDM and the driver belt pretensioner module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
7	Replace the SDM. The arrow must be pointing toward the front of the vehicle. Connect all SRS components, and ensure that all components are properly mounted. Perform the SRS Diagnostic System Check. Is DTC B0065 still current?	-	Go to Step 8	System OK
8	Turn the ignition to LOCK and remove the key. Disconnect the connector at the driver belt pretensioner. Replace the driver belt pretensioner module. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0066 DRIVER BELT PRETENSIONER DEPLOYMENT LOOP SHORTED

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform tests to diagnose critical malfunctions within itself. Upon passing these tests, ignition and deployment loop voltages are measured to ensure that they are within their respective normal voltage ranges. The SDM then proceeds with the resistance measurement test. Driver belt pretension low terminal A5 is grounded through a current sink, and the driver belt pretensioner current source is connected to the driver belt pretensioner high terminal to allow a known amount of current to flow. By monitoring the voltage difference between the driver pretensioner high and driver belt pretensioner low terminals, the SDM calculates the combined resistance of the driver belt preten-sioner harness wiring, and connector terminal contacts.

DTC B0066 Will Set When

Resistance of the driver belt pretensioner loop is less than 1.2 ohms for 500 milliseconds.
Ignition voltage is within the normal operation range.

Action Taken

The SDM will turn ON the AIRBAG indicator and set a diagnostic trouble code (DTC) B0066.

DTC B0066 Will Clear When

Resistance of the driver belt pretensioner loop is higher than or equal to 1.2 ohms for 500 milliseconds.
The ignition switch is turned OFF.
The scan tool CLEAR CODES command is received.

Diagnostic Aids

An intermittent condition is likely to be caused by a short between the driver belt pretensioner high and low circuits, a short on C221 or a short between the driver belt pretensioner high circuit and the pressenger belt high circuit, or a short between the driver belt pretensioner high circuit and the right side belt low circuit. The problem could also be a malfunctioning shorting bar in the driver belt pretensioner connector, which would require replacement of the driver belt pretensioner. The test for this DTC is run only while the AIRBAG indicator is performing the turn-on test. When a scan tool CLEAR CODES command is issued while the malfunction is still present, the DTC will not reappear until the next ignition cycle.

DTC B0066 - Driver Belt Pretensioner Deployment Loop Shorted

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Perform the SRS Diagnostic System Check. Is the SRS Diagnostic System Check complete?	-	Go to Step 2	-
2	Turn the ignition to LOCK and remove the key. Connect the scan tool to the Data Link Connector (DLC). Turn the ignition ON. Is DTC B0066 also current?	-	Go to Step 3	Go to Step 4
3	Turn the ignition to LOCK and remove the key. Disconnect the yellow airbag connectors at the steering column, passenger airbag, connector C221 and at driver belt pretensioner connector. Repair the short between the driver belt pretensioner high circuit and the passenger belt pretensioner airbag high circuit. Make sure all SRS components are reconnected and all components are properly mounted. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-
4	Turn the ignition to LOCK and remove the key. Disconnect the connector C221 and the driver belt pretensioner connector. Measure the resistance between terminal 1 and 2 of driver belt pretensioner. Refer to "Diagnostic illustration 17" in this section. Is the resistance equal to specified value?	-	Go to Step 5	Go to Step 7
5	Replace the sensing and diagnostic module (SDM). The arrow must be pointing forward the front of the vehicle. Connect all the wiring connector. Clear all trouble code with scanner. Is the repair complete?	-	System OK	Go to Step 6
6	Replace the driver belt pretensioner. Is the repair complete?	-	System OK	-
7	Repair the short between the driver belt pretensioner high circuit and the driver belt pretensioner low circuit or replace the wiring harness. Is the repair complete?	-	Go to "SRS Diagnostic System Check"	-

DIAGNOSTIC TROUBLE CODE (DTC) B0077 DRIVER SIDE AIRBAG SENSOR DEFECT

Circuit Description

DTC B0077 Will Set When

The driver side airbag sensor is inoperative.

DTC B0077 - Driver Side Airbag Sensor Defect

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute the SDM charger to be discharged.	-	Go to Step 2	-
2	Visually check any damage for the driver side airbag sensor wiring and C221 connector (terminal 10, 3). Is the driver side airbag sensor wiring damaged?	-	Go to Step 3	Go to Step 4
3	Replace the airbag wiring.	-	-	-
4	Replace the driver side airbag sensor.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0078 PASSENGER SIDE AIRBAG SENSOR DEFECT

Circuit Description

DTC B0078 Will Set When

The the passenger side airbag sensor is inoperative.

DTC B0078 - Passenger Side Airbag Sensor Defect

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute the SDM charger to be discharged.	-	Go to Step 2	-
2	Visually check any damage for the driver side airbag-sensor wiring and the terminal 9, 8 from the 2 connector C221. Is the passenger side airbag sensor wiring damaged?	-	Go to Step 3	Go to Step 4
3	Replace the airbag wiring.	-	-	-
4	Replace the passenger side airbag sensor.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0079 DRIVER SIDE AIRBAG SENSOR WRONG ID

Circuit Description

DTC B0079 Will Set When

The sensor for communication between the SDM and the driver side airbag sensor is not identified.

DTC B0079 - Passenger Side Airbag Sensor Defect

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute the SDM charger to be discharged.	-	Go to Step 2	-
2	Visually check any damage for the driver side airbag sensor wiring. Is the driver side airbag sensor wiring damaged?	-	Go to Step 3	Go to Step 4
3	Replace the airbag wiring.	-	-	-
4	Replace the driver side airbag sensor.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B0081 PASSENGER SIDE AIRBAG SENSOR WRONG ID

Circuit Description

DTC B0081 Will Set When

The sensor for communication between the SDM and the passenger side airbag sensor is not identified.

DTC B0081 - Passenger Side Airbag Sensor Defect

Caution : During service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Step	Action	Value(s)	Yes	No
1	Confirm the ignition switch "OFF". Wait for a minute the SDM charger to be discharged.	-	Go to Step 2	-
2	Visually check any damage for the passenger side airbag sensor wiring. Is the passenger side airbag sensor wiring damaged?	-	Go to Step 3	Go to Step 4
3	Replace the airbag wiring.	-	-	-
4	Replace the passenger side airbag sensor.	-	-	-

DIAGNOSTIC TROUBLE CODE (DTC) B1000 INTERNAL SDM FAULT

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module(SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself.

DTC B1000 Will Set When

The SDM does not implement diagnostic operation. In case of above, the wiring harness of SDM should be checked before replacing the SDM.

DTC B1000 - Internal SDM Fault

Caution : sensing and diagnostic module(SDM) can maintain sufficient voltage to deploy the air-bags and pretensioners for 1 minute after the ignition is OFF and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not begin service until one minute has passed after disconnecting power to SDM. Otherwise, injury could result.

Caution : service procedure, be very careful when handling the SDM. Never strike or jar the SDM.

Caution : Do not use these illustrations to troubleshooting without consulting the diagnostic trouble code (DTC) charts. The DTC chart give additional safety precautions and detailed instructions for each test. Failure to follow the proper precautions can result in injury from unintended airbag deployment.

DIAGNOSTIC ILLUSTRATION 1

Checking the continuity between the passenger airbag and the Sensing and Diagnostic Module (SDM).

DIAGNOSTIC ILLUSTRATION 2

Checking for a short circuit between the passenger high and low circuits.

DIAGNOSTIC ILLUSTRATION 3

Checking for a short circuit between the passenger high and driver low circuits.

DIAGNOSTIC ILLUSTRATION 4

Checking for a short circuit between the passenger high circuit and ground.

DIAGNOSTIC ILLUSTRATION 5

Checking for a short circuit between the passenger low circuit and ground.

DIAGNOSTIC ILLUSTRATION 6

Checking for a short circuit between the passenger high circuit and voltage.

DIAGNOSTIC ILLUSTRATION 7

Checking for a short circuit between the passenger low circuit and voltage.

DIAGNOSTIC ILLUSTRATION 8

Placing a jumper on SDM side of the yellow clock spring connector.

DIAGNOSTIC ILLUSTRATION 9

Placing a jumper on the clock spring-to-airbag connector.

DIAGNOSTIC ILLUSTRATION 10

Checking for a short circuit between the driver high and passenger low circuits.

DIAGNOSTIC ILLUSTRATION 11

Checking for a short circuit between the driver high and driver low circuits.

DIAGNOSTIC ILLUSTRATION 12

Checking for a short circuit between the driver high circuit and ground.

DIAGNOSTIC ILLUSTRATION 13

Checking for a short circuit between the driver low circuit and ground.

DIAGNOSTIC ILLUSTRATION 14

Checking for a short circuit between the driver high circuit and voltage.

DIAGNOSTIC ILLUSTRATION 15

Checking for a short circuit between the driver low circuit and voltage.

DIAGNOSTIC ILLUSTRATION 16

Checking for a open circuit between the sensing and diagnostic module (SDM) and the clock spring.

DIAGNOSTIC ILLUSTRATION 17

Checking for a short circuit between the right(left) pre-tensioner high and low circuits.

DIAGNOSTIC ILLUSTRATION 18

Checking for a continuity between the right side belt pre-tensioner and the sensing and diagnostic module (SDM).

DIAGNOSTIC ILLUSTRATION 19

Checking for a short circuit between the wiring harness of right(left) side belt pretensioner and ground.

DIAGNOSTIC ILLUSTRATION 20

Checking for a short circuit between the belt pretension-er wiring harness and the voltage.

DIAGNOSTIC ILLUSTRATION 21

Checking for the continuity between left side belt preten-sioner and sensing and diagnostic module (SDM).

REPAIR INSTRUCTIONS

ON-VEHICLE SERVICE

SERVICE PRECAUTION

Caution : The sensing and diagnosis module (SDM) can maintain sufficient voltage to deploy the air-bags and pretensioner for 1 minute after the ignition is OFF and the airbag fuse has been removed. If the airbags or pretensioners are not disconnected, do not begin service until one minute has passed after disconnecting power to the SDM. If the airbag are disconnected, service can begin immediately without waiting for one-minute time period to expire. Failure to temporarily disable the SRS during service can result in unexpected deployment, personal injury, and otherwise unneeded SRS repairs.

DISABLING THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Turn the steering wheel to the straight-ahead position.
Turn the ignition switch to LOCK and remove the key.
Remove the airbag fuse F19 in the I/P fuse block and wait more than one minute for SRS capacitor to discharge.

ENABLING THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Insert airbag fuse F19 in the I/P fuse block.
Turn the ignition switch to ON and verify that the AIR-BAG indicator flashes seven times and turns OFF. If it does not operate as described, perform the "SRS Diagnostic System Check" referring in this section.

Caution : While turning the ignition switch, staying well away from the inflator modules, or personal injury can be occurred.

HANDLING, INSTALLATION, AND DIAGNOSIS

Airbag modules should not be subjected to temperature above 653C(1493F).
An airbag module or sensing and diagnostic module (SDM) should not be used if it has been dropped from height of 0.9 meters (3 feet) or greater.
When an SDM is replaced, it must be oriented with the arrow on the SDM pointing toward the front of the vehicle.

It is very important for the SDM to be installed flat on the mounting surface, parallel to the vehicle's longitudinal axis.
To avoid setting diagnostic trouble codes (DTCs), do not apply power to the SRS unless all components are connected or a diagnostic chart request it.
The SRS Diagnostic System Check must be the starting point of any SRS diagnostics. The SRS Diagnostic System Check will verify proper AIRBAG indicator operation and will lead you to correct chart to diagnose any SRS malfunctions. Bypassing these procedures may result in extended diagnostic time and incorrect parts replacements.

REPAIRS AND INSPECTIONS REQUIRED AFTER AN ACCIDENT

Caution : Any repairs to the vehicle's structure must return it to the original production configuration. Deployment requires replacement of SDM, the inflator modules, and a dimensional inspection of the steering column.

If any SRS components are damaged, they must be replaced. If SRS components mounting points are damaged, they must be repaired or replaced.
Never use SRS parts from another vehicle. This does not include remanufactured parts purchased from an authorized source.
Do not attempt to service the SDM, the clock spring, or other airbag modules, these items must be replaced if they are defective.
Verify the part number of replacement airbag modules. Some inflator modules look identical but contain different internal components.

ACCIDENT WITH DEPLOYMENT-COMPONENTS REPLACEMENT

All SRS components must be replaced after frontal crash involving airbag deployment. After deployment, a powdery residue may be on the surface of the airbag. The powder consists primarily of cornstarch (used to lubricate the bag as it inflates) and by-products of the chemical reaction. Sodium hydroxide dust (similar to lye soap) is produced as a by-product of the deployment reaction. The sodium hydroxide then quickly reacts with atmospheric moisture and is converted to sodium carbonate and sodium bicarbonate (also known as baking soda). Therefore, it is unlikely that sodium hydroxide will be present after deployment. Replace the following SRS components.

Caution : Wear gloves and safety glasses during the disposal procedure. Refer to "Deployed Airbag Module Disposal Procedure" in this section.

The SDM.
Airbag modules and pretensioners

Airbag system wiring haness
Clock spring

ACCIDENT WITHOUT DEPLOYMENT - COMPONENT INSPECTION

Certain inspection must be performed after any crash, whether the airbag has deployed or not:

The steering column must be dimensionally inspected.
Inspect the knee bolsters and mounting points for distortion, bending, cracking, or other damage.
Inspect the instrument panel (I/P) and steering column reinforcement plate for distortion, bending, cracking, or other damage.
Inspect the I/P braces for distortion, bending, cracking, or other damage.
Inspect seat belt and mounting points. Refer to Section 8A, Seat Belts.

SENSING AND DIAGNOSTIC MODULE (SDM)

Caution : During service procedures, be very careful when handling the SDM. Never strike or jar the SDM. Never power up the SRS when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must carefully tighten, and the SDM arrow must be pointing toward the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered while not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

Important : If the vehicle interior has been exposed to extensive water intrusion such as water leaks, driving through high water, flooding, or other causes, the sensing and diagnostic module (SDM) and SDM connector may need to be replaced. With the ignition OFF, inspect the area around the SDM, including the carpet. If any significant soaking or evidence of previous soaking is detected, the water must be removed, the water damage repaired, and the SDM and SDM connector must be replaced. Before attempting any of these repairs, the supplemental restraint system (SRS) must be disabled. Refer to "Disabling the Supplemental Restraint System (SRS)" in this section.

Removal and Installation Procedure

Disable the supplemental restraint system (SRS). Refer to "Disabling the SRS" in this section.
Remove the floor console. Refer to Section 9G, Interior Trim.
Remove the connector position assurance lock, which is tethered to SDM connector.
Disconnect the SDM electrical connector.
Remove the SDM mounting bolts and discard them.

Installation Notice

Tightening Torque

10 N•m (89 lb-in)

Remove the SDM.
Installation should follow the removal procedure in the reverse order.

Installation Notice

Enable the SRS. Refer to "Enabling the SRS" in this section.

Caution : All SDM mounting bolts must carefully tighten, and the SDM arrow must be pointing toward the front of the vehicle to ensure proper operation of the SRS. The SDM could be activated if it is powered while not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.

DRIVER AIRBAG MODULE

Removal and Installation Procedure

Disconnect the negative battery cable.

Caution : The SDM can maintain sufficient voltage to deploy the airbags for 1 minute after the ignition is OFF and the airbag fuse has been removed. If the airbags are not disconnected, service cannot begin until one minute has passed after disconnecting power to the SDM. If the airbags are disconnected, service can begin immediately without waiting for one-minute time period to expire. Failure to temporarily disable the SRS during service result in unexpected deployment, personal injury, and otherwise unneeded SRS repair.

Remove two driver airbag module mounting bolts and discard them.

Installation Notice

Tightening Torque

8 N•m (71 lb-in)

Remove the connector from the driver airbag module.
Remove the driver airbag module.

Caution : When handling an airbag module, always keeps the top of the unit facing upward. This leaves room for the airbag to expand if the module unexpectedly deploys. Without room for expansion, a module suddenly propelled toward a person or object can cause injury or vehicle damage.

Installation should follow the removal procedure in the reverse order.

CLOCK SPRING

Removal and Installation Procedure

Caution : The SDM can maintain sufficient voltage to deploy the airbags for 1 minute after the Ignition is OFF and the airbag fuse has been removed. If the airbags are not disconnected, service cannot begin until one minute has passed after disconnecting power to the SDM. If the airbags are disconnected, service can begin immediately without waiting for one-minute time period to expire. Failure to temporarily disable the SRS during service result in unexpected deployment, personal injury, and otherwise unneeded SRS repair.

Disconnect the negative battery cable.
Remove the driver airbag module. Refer to "Driver Airbag Module" in this section.
Remove the steering wheel. Refer to Section 6E, Steering Wheel and Column.
Remove the screws, and upper and lower steering column covers.

Carefully full the driver side knee bolster or instrument panel lower cover.
Disconnect the driver airbag, horn and remote audio control switch connectors at the lower steering column.
Remove the screws and the clock spring from the steering shaft.

Installation Notice

Tightening Torque

3 N•m (27 lb-in)

Installation should follow the removal procedure in the reverse order. Refer to "Clock Spring Alignment" in this section for alignment.

Caution : If the clock spring is not properly aligned, the steering wheel may not be able to rotate completely during a turn. Restricted turning ability can cause the vehicle to crash. Improper alignment of the clock spring also may make the supplemental restraint system (SRS) inoperative, preventing the airbag from deploying during crash. Both of the out comes can result in injury.

CLOCK SPRING ALIGNMENT

Notice : Turning the clock spring more than three turns clockwise or counterclockwise can damage the spring.

Turn the front wheels straight ahead.
Turn the lobe of clock spring clockwise to lock. (Do Not Force)
Then turn the lobe of clock spring count clockwise approximately three turns to the neutral position, with the front of the wheels straight ahead.
Properly align the pointed marks on the components of the clock spring.

PASSENGER AIRBAG MODULE

Removal and Installation Procedure

Disconnect the negative battery cable.
Remove the glove box. Refer to Section 9E, Instrumentation/Driver Information.
Disconnect the passenger airbag yellow electrical connector.
Remove the six mounting bolts form the airbag bracket.

Installation Notice

Tightening Torque

11 N•m (97 lb-ft)

Remove the passenger airbag module from the instrument panel by pushing upward.
Installation should follow the removal procedure in the reverse order.

SIDE AIRBAG SENSOR

Removal and Installation Procedure

Caution : The sensing and diagnostic module(SDM) can maintain sufficient voltage to deploy the air-bags and pretensioners for 1minute after the ignition is OFF and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not begin service until one minute has passed after disconnecting power to SDM. If the airbags are disconnected, service can be executed immediately without waiting for one-minute time period to expire. Failure to temporarily disable the SIR during service can result in unexpected deployment, personal injury and unnecessary SIR repairs.

Disconnect both battery cables and place the battery at least 10 meters (33 feet) from the vehicle.
Remove the trim from B pillar.
Remove the side airbag sensor mounting bolts.
Remove the side airbag sensor.
Installation should follow the removal procedure in the reverse order.

Tightening torque of the side airbag sensor mounting bolts is 8 N•m (71 lb-in).

FRONT SEAT BELT PRETENSIONER

For removal and installation refer to Section 8A, Seat Belts.

AIRBAG MODULE DEPLOYMENT (IN VEHICLE)

Deploy airbags before disposing of them. If a vehicle to be scraped, the airbag may be deployed inside the vehicle.

Caution : To avoid injury while deploying an airbag or a pretensioner in the vehicle, observe the following precaution:

Before deploying the airbags, remove all loose objects from the airbag's expansion area.

Deploy the airbags with the vehicle doors closed and the side windows open.

Deploy the airbags only in an evacuated area. Service personnel who must be present during the deployment should be at least 10 meters (33 feet) in front of the vehicle.

Do not connect the voltage source until after having completed all other preparations for the deployment of the airbags.

Allow a deployed airbag module or pretensioner to cool for at least 30 minutes before handling.

Wear gloves and eye protection during the disposal procedure.

If the deployment fails, disconnect the voltage source and wait 5 minutes before approaching the vehicle.

Deployment Procedure

Disconnect both battery cables and place the battery at least 10 meters (33 feet) from the vehicle.
Remove the driver side knee bolster or instrument panel lower cover from the steering column. Refer to Section 9G, Interior Trim.
At the lower steering column, cut the two wires leading from the supplemental restraint system (SRS) harness to the clock spring.
Strip 13 mm (0.5 inch) of the insulation from the end of the wires leading to the clock spring.
Use two additional wires, each at least 10 meters (33 feet) long, to reach from the deployment battery to the inflator module.
Strip 13 mm (0.5 inch) of the insulation from the ends of these two additional wires.
Twist the two wires together at one end.
Place the twisted ends of the two wires near the deployment battery. Do not connect the wires to the battery at this time.
Using the free ends of the 10 meters (33 feet) wires leading to the clock spring, make two splices, one at each wires from the airbag modules.
Wrap the wires with insulation tape.
Now that the free ends of the 10 meters (33 feet) wires are spliced to the airbag module wires, and the ends that are twisted together are near the deployment battery, clear the area.
Untwist the wires that near the deployment battery.
Touch one wire to the positive battery terminal and touch the other wire to the negative battery terminal. The airbag will deploy.
Repeat the procedure for the passenger airbag and pretensioners.
Using proper precautions, dispose of the deployed airbag/pretensioner. Refer to "Deployed Airbag Module Disposal Procedure" in this section.

AIRBAG MODULE DEPLOYMENT (OUTSIDE OF VEHICLE)

If the vehicle is within the warranty period, contact the Daewoo regional service manager for approval or special instructions before deploying the airbag modules. Deploy airbag modules in following situations:

If the vehicle is to be scrapped. Refer to "Airbag Module Deployment (Inside of Vehicle)" in this section.
If an airbag module is damaged during transit, storage, or service.

Caution : To avoid injury while deploying an airbag module or pretensioner outside the vehicle, observe following precaution:

Deploy the airbags only in an evacuated area. Service personnel who must be present during the deployment should be at least 10 meters (33 feet) in front of the airbag module.

Do not connect the voltage source until after having completed all other preparations for the deployment of the airbags.

Allow a deployed airbag module or pretensioner to cool for at least 30 minutes before handling.

Wear gloves and eye protection during the disposal procedure.

If the deployment fails, disconnect the voltage source and wait 5 minutes before approaching the vehicle.

Position the airbag module face up, on flat ground outdoors, at least 10 meters (33 feet) from the any obstacles or people.
Place a vehicle battery at least 10 meters (33 feet) away from the airbag module.
Deploy the airbag module by following the procedure as below.
Cut the yellow wires to the airbag module/preten-sioner.
Strip 13 mm (0.5 inch) of the insulation from the end of the wires leading to the airbag module/preten-sioner.
Use two additional wires, each at least 10 meters (33 feet) long, to reach from the deployment battery to the airbag module/pretensioner.
Strip 13 mm (0.5 inch) of the insulation from the ends of these two additional wires.
Twist the two wires together at one end.
Place the twisted ends of the two wires near the deployment battery. Do not connect the wires to the battery at this time.
Using the free ends of the 10 meters (33 feet) wires leading to the airbag module/pretensioner, make two splices, one at each wires from the airbag module/pretensioner.
Wrap the splices with insulating tape.

Now that the free ends of the 10 meters (33 feet) wires are spliced to the airbag module/pretensioner wires, and the ends that are twisted together are near the deployment battery, clear the area.
Untwist the wires that near the deployment battery.
Touch one wire to the positive battery terminal and touch the other wire to the negative battery terminal. The airbag module/pretensioner will deploy.
Using proper precautions, dispose of the deployed airbag module/pretensioner. Refer to "Deployed Air-bag Module Disposal Procedure" in this section.

DEPLOYED AIRBAG MODULE DISPOSAL PROCEDURE

Caution : After deployment, a powdery residue may be on the surface of the airbag. The powder consists primarily of cornstarch (used to lubricate the bag as it inflates) and by-products of the chemical reaction. Sodium hydroxide dust (similar to lye soap) is produced as a by-product of the deployment reaction. The sodium hydroxide then quickly reacts with atmospheric moisture and is converted to sodium carbonate and sodium bicarbonate 9also known as baking soda). Therefore, it is unlikely that sodium hydroxide will be present after deployment.

Caution : Wear gloves and eye protection during the disposal procedure.

Caution : After deployment, the metal surfaces of the airbag module will be hot. In order to avoid the risk of an injury or a fire, do not place the deployed airbag module near any flammable objects, and allow the airbag module to cool for 30 minutes before handling.

Deploy an airbag or pretensioner before disposing of it. This includes those in a whole vehicle being scrapped. If the vehicle is still within the warranty period contact the Daewoo regional service manager for approval or special instructions before deploying an airbag module or a pretensioner. Deployed airbag module or pretensioner should be disposed of in the same manner as other scrap parts, with the addition of the following steps:

Place the deployed airbag or pretensioner in a sturdy plastic bag.
Seal the plastic bag securely.
Wash your hands and rinse them with water after handling a deployed airbag.

SRS WIRING REPAIR

Connector Repair

Caution : Before attempting any repairs, the SRS must be disabled. Refer to "Disabling the SRS" in this section for instructions on how to disable the SRS.

The terminals in the SRS are made of special metal to provide necessary contact integrity for the sensitive, low-energy circuits. These terminals are available only in connector repair assembly packs. Do not substitute any other terminals for those in the assembly packs.

Wire Repair

Caution : Before attempting any repairs, the SRS must be disabled. Refer to "Disabling the SRS" in this section for instructions on how to disable the SRS.

Do not repair any wires of supplemental restraint system (SRS). Replace any damaged wires with new one.

SPECIFICATIONS

GENERAL SPECIFICATION

Application	Description
Airbag System Deployment Time	≪ 20ms
Detection Time	≪ 5ms
Operating Temperature	- 403C - + 853C
Storage Temperature	- 403C - + 903C
Voltage Range	9 - 16 V
Current Consumption	5 ms after ignition switch ON < 1A 5ms - 5sec< 300mA, after 5sec.< 100mA
Acceleration Range	+/- 50g
Maximum Acceleration	+/- 600g pulse
Voltage Ramp	0.2 - 2.0 V/s
Energy Reservation (minimum)	150ms after battery disconnection
Inflator Ignition Energy	4.3mJ
Squib Resistance	2.15 +/- 0.35Ω
Airbag Warning Lamp ON Time(When Ignition ON)	6sec

FASTENER TIGHTENING SPECIFICATIONS

Application	N•m	Lb-Ft	Lb-In
Clock Spring Retaining Screws	3	-	27
Driver Airbag Module Mounting Bolts	8	-	71
Passenger Airbag Module Mounting Bolts	11	-	97
Sensing and Diagnostic Module(SDM) Mounting Bolts	10	-	89

SCHEMATIC AND WIRING DIAGRAMS

SUPPLEMENTAL RESTRAINT SYSTEM

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS TABLE

Scan Tool