Service Manual2005 Diagnostic Trouble Code(DTC) P1861

Nubira-Lacetti

Diagnostic Trouble Code(DTC) P1861

EDS 4 Output Shorted To Ground

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

The valve reduces the system pressure with which the downstream solenoid valves and electrical pressure regulating valves are supplied. It is possible to use smaller solenoid valves as a result. The EDS require a constant input pressure.

Conditions for Setting the DTC

Output voltage of the EDS 4 is less than 2 volt.
No DTC P1862, P1863.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1861 sets, the possible cause of fault could be EDS4 valve.

DTC P1861 - EDS 4 Output Shorted To Ground

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 4 ON/OFF. Does the EDS 4 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector. Measure the resistance between terminals 5 and 7 of the transaxle wiring connector. Is the resistance within the values shown?	TFT 25°C (77°F) 6 Ω	Go to Step 7	Go to Step 4
4	Remove the oil pan. Disconnect the wiring connector of EDS 4. Measure the resistance between terminal 2 of EDS 4 and ground. Measure the resistance between terminal 1 of EDS 4 and ground. Is the resistance within the values shown?	∞	Go to Step 6	Go to Step 5
5	Repair the internal line(EDS 4) for a short to ground. Is the repair complete?	-	System OK	-
6	Replace the EDS 4. Is the replacement complete?	-	System OK	-
7	Disconnect the transaxle wiring connector and TCM connector. Measure the resistance between terminal 5 of the transaxle wiring connector and ground. Measure the resistance between terminal 7 of the transaxle wiring connector and ground. Is the resistance within the values shown?	∞	Go to Step 9	Go to Step 8
8	Repair the transaxle wiring harness for a short to ground. Is the repair complete?	-	System OK	-
9	Replace the TCM. Is the replacement complete?	-	Go to Step 10	-
10	After the repair, use a scan tool "clear info" function and road tests the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Diagnostic Trouble Code(DTC) P1862

EDS 4 Output Shorted To Power

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output voltage of the EDS 4 (at ON) is 12 volt.
No DTC P1861, P1863.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1862 sets, the possible cause of fault could be TCM.

DTC P1862 - EDS 4 Output Shorted To Power

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 4 ON/OFF. Does the EDS 4 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Remove the oil pan. Disconnect the wiring connector of EDS 4. Turn the ignition ON, with the engine OFF. Measure the voltage of EDS 4 wiring connector terminal 1. Is the voltage within the values shown?	11-14V	Go to Step 4	Go to Step 5
4	Repair the internal line(EDS 4) for a short to power. Is the repair complete?	-	System OK	-
5	Replace the EDS 4. Is the replacement complete?	-	Go to Step 6	-
6	Check if any DTCs are set. Are any DTCs displayed that have not been diagnosed?	-	Go to "Applicable DTC table"	System OK

Diagnostic Trouble Code(DTC) P1863

EDS 4 Output Open

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output ampere of the EDS 4 is less than 10mA.
No DTC P1861, P1862.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1863 sets, the possible cause of fault could be EDS4 valve.

DTC P1863 - EDS 4 Output Open

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 4 ON/OFF. Does the EDS 4 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector. Measure the resistance between terminals 5 and 7 of the transaxle wiring connector. Is the resistance within the values shown?	TFT 25°C (77°F) 6 Ω	Go to Step 7	Go to Step 4
4	Remove the oil pan. Disconnect the wiring connector of EDS 4. Measure the resistance between terminal 2 of the EDS 4 and terminal 5 of the transaxle connector. Measure the resistance between terminal 1 of the EDS 4 and terminal 7 of the transaxle connector. Is the resistance within the values shown?	≈ 0 Ω	Go to Step 6	Go to Step 5
5	Repair the circuit (between terminal 2 and terminal 5) for an open. Repair the circuit (between terminal 1 and terminal 7) for an open. Is the repair complete?	-	System OK	-
6	Replace the EDS 4. Is the replacement complete?	-	System OK	-
7	Disconnect the transaxle wiring connector and TCM connector. Measure the resistance between terminal 5 of the transaxle wiring connector and terminal C7 of the TCM wiring connector. Measure the resistance between terminal 7 of the transaxle wiring connector and terminal A3 of the TCM wiring connector. Is the resistance within the values shown?	≈ 0 Ω	Go to Step 9	Go to Step 8
8	Repair the transaxle wiring harness for an open. Is the repair complete?	-	System OK	-
9	Replace the TCM. Is the replacement complete?	-	Go to Step 10	-
10	After the repair, use a scan tool "clear info" function and road tests the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Diagnostic Trouble Code(DTC) P1864

EDS 5 Output Shorted To Ground

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output voltage of the EDS 5 is less than 2 volt.
No DTC P1865, P1866.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1864 sets, the possible cause of fault could be EDS valve.

DTC P1864 - EDS 5 Output Shorted To Ground

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 5 ON/OFF. Does the EDS 5 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector. Measure the resistance between terminals 5 and 10 of the transaxle wiring connector. Is the resistance within the values shown?	TFT 25°C (77°F) 6 Ω	Go to Step 7	Go to Step 4
4	Remove the oil pan. Disconnect the wiring connector of EDS 5. Measure the resistance between terminal 2 of EDS 5 and ground. Measure the resistance between terminal 1 of EDS 5 and ground. Is the resistance within the values shown?	∞	Go to Step 6	Go to Step 5
5	Repair the internal line(EDS 5) for a short to ground. Is the repair complete?	-	System OK	-
6	Replace the EDS 5. Is the replacement complete?	-	System OK	-
7	Disconnect the transaxle wiring connector and TCM connector. Measure the resistance between terminal 5 of the transaxle wiring connector and ground. Measure the resistance between terminal 10 of the transaxle wiring connector and ground. Is the resistance within the values shown?	∞	Go to Step 9	Go to Step 8
8	Repair the transaxle wiring harness for a short to ground. Is the repair complete?	-	System OK	-
9	Replace the TCM. Is the replacement complete?	-	Go to Step 10	-
10	After the repair, use a scan tool "clear info" function and road tests the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Diagnostic Trouble Code(DTC) P1865

EDS 5 Output Shorted To Power

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output voltage of the EDS 5 (at ON) is 12 volt.
No DTC P1864, P1866.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1865 sets, the possible cause of fault could be EDS5.

DTC P1865 - EDS 5 Output Shorted To Power

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 5 ON/OFF. Does the EDS 5 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Remove the oil pan. Disconnect the wiring connector of EDS 5. Turn the ignition ON, with the engine OFF. Measure the voltage of EDS 5 wiring connector terminal 2. Is the resistance within the values shown?	11-14V	Go to Step 4	Go to Step 5
4	Repair the internal line(EDS 5) for a short to power. Is the repair complete?	-	System OK	-
5	Replace the EDS 5. Is the replacement complete?	-	Go to Step 6	-
6	Check if any DTCs are set. Are any DTCs displayed that have not been diagnosed?	-	Go to "Applicable DTC table"	System OK

Diagnostic Trouble Code(DTC) P1866

EDS 5 Output Open

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output ampere of the EDS 5 is less than 10mA.
No DTC P1864, P1865.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1866 sets, the possible cause of fault could be EDS valve.

DTC P1866 - EDS 5 Output Open

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 5 ON/OFF. Does the EDS 5 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector. Measure the resistance between terminals 5 and 10 of the transaxle wiring connector. Is the resistance within the values shown?	TFT 25°C (77°F) 6 Ω	Go to Step 7	Go to Step 4
4	Remove the oil pan. Disconnect the wiring connector of EDS 5. Measure the resistance between terminal 2 of the EDS 5 and terminal 5 of the transaxle connector. Measure the resistance between terminal 1 of the EDS 5 and terminal 10 of the transaxle connector. Is the resistance within the values shown?	≈ 0 Ω	Go to Step 6	Go to Step 5
5	Repair the circuit (between terminal 2 and terminal 5) for an open. Repair the circuit (between terminal 1 and terminal 10) for an open. Is the repair complete?	-	System OK	-
6	Replace the EDS 5. Is the replacement complete?	-	System OK	-
7	Disconnect the transaxle wiring connector and TCM connector. Measure the resistance between terminal 5 of the transaxle wiring connector and terminal C7 of the TCM wiring connector. Measure the resistance between terminal 10 of the transaxle wiring connector and terminal A10 of the TCM wiring connector. Is the resistance within the values shown?	≈ 0 Ω	Go to Step 9	Go to Step 8
8	Repair the transaxle wiring harness for an open. Is the repair complete?	-	System OK	-
9	Replace the TCM. Is the replacement complete?	-	Go to Step 10	-
10	After the repair, use a scan tool "clear info" function and road tests the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Diagnostic Trouble Code(DTC) P1867

EDS 6 Output Shorted To Ground

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output voltage of the EDS 6 is less than 2 volt.
No DTC P1868, P1869.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1867 sets, the possible cause of fault could be EDS valve.

DTC P1867 - EDS 6 Output Shorted To Ground

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 6 ON/OFF. Does the EDS 6 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector. Measure the resistance between terminals 5 and 11 of the transaxle wiring connector. Is the resistance within the values shown?	TFT 25°C (77°F) 6 Ω	Go to Step 7	Go to Step 4
4	Remove the oil pan. Disconnect the wiring connector of EDS 6. Measure the resistance between terminal 2 of EDS 6 and ground. Measure the resistance between terminal 1 of EDS 6 and ground. Is the resistance within the values shown?	∞	Go to Step 6	Go to Step 5
5	Repair the internal line(EDS 6) for a short to ground. Is the repair complete?	-	System OK	-
6	Replace the EDS 6. Is the replacement complete?	-	System OK	-
7	Disconnect the transaxle wiring connector and TCM connector. Measure the resistance between terminal 5 of the transaxle wiring connector and ground. Measure the resistance between terminal 11 of the transaxle wiring connector and ground. Is the resistance within the values shown?	∞	Go to Step 9	Go to Step 8
8	Repair the transaxle wiring harness for a short to ground. Is the repair complete?	-	System OK	-
9	Replace the TCM. Is the replacement complete?	-	Go to Step 10	-
10	After the repair, use a scan tool "clear info" function and road tests the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Diagnostic Trouble Code(DTC) P1868

EDS 6 Output Shorted To Power

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output voltage of the EDS 6 (at ON) is 12 volt.
No DTC P1867, P1869.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1868 sets, the possible cause of fault could be TCM.

DTC P1868 - EDS 6 Output Shorted To Power

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 6 ON/OFF. Does the EDS 6 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Remove the oil pan. Disconnect the wiring connector of EDS 6. Turn the ignition ON, with the engine OFF. Measure the voltage terminal 2 of the EDS 6 wiring connector. Is the voltage within the values shown?	11-14V	Go to Step 4	Go to Step 5
4	Repair the internal line(EDS 6) for a short to power. Is the repair complete?	-	System OK	-
5	Replace the EDS 6. Is the replacement complete?	-	Go to Step 6	-
6	Check if any DTCs are set. Are any DTCs displayed that have not been diagnosed?	-	Go to "Applicable DTC table"	System OK

Diagnostic Trouble Code(DTC) P1869

EDS 6 Output Open

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

Output ampere of the EDS 6 is less than 10mA.
No DTC P1867, P1868.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1869 sets, the possible cause of fault could be EDS valve.

DTC P1869 - EDS 6 Output Open

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Select "Actuating" on the scan tool. Actuate EDS 6 ON/OFF. Does the EDS 6 change ON/OFF?	ON/OFF	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector. Measure the resistance between terminals 5 and 11 of the transaxle wiring connector. Is the resistance within the values shown?	TFT 25°C (77°F) 6 Ω	Go to Step 7	Go to Step 4
4	Remove the oil pan. Disconnect the wiring connector of EDS 6. Measure the resistance between terminal 2 of the EDS 6 and terminal 5 of the transaxle connector. Measure the resistance between terminal 1 of the EDS 6 and terminal 11 of the transaxle connector. Is the resistance within the values shown?	≈ 0 Ω	Go to Step 6	Go to Step 5
5	Repair the circuit (between terminal 2 and terminal 5) for an open. Repair the circuit (between terminal 1 and terminal 11) for an open. Is the repair complete?	-	System OK	-
6	Replace the EDS 6. Is the replacement complete?	-	System OK	-
7	Disconnect the transaxle wiring connector and TCM connector. Measure the resistance between terminal 5 of the transaxle wiring connector and terminal C7 of the TCM wiring connector. Measure the resistance between terminal 11 of the transaxle wiring connector and terminal A12 of the TCM wiring connector. Is the resistance within the values shown?	≈ 0 Ω	Go to Step 9	Go to Step 8
8	Repair the transaxle wiring harness for an open. Is the repair complete?	-	System OK	-
9	Replace the TCM. Is the replacement complete?	-	Go to Step 10	-
10	After the repair, use a scan tool "clear info" function and road tests the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Diagnostic Trouble Code(DTC) P1871

EDS Valve Power Supply Circuit Shorted To Power

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

If the voltage applied to high side driver is higher than the threshold(6V) with high side driver switch off status then a fault is detected.
No DTC P1870.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear by hydraulic control.
After ignition OFF/ON : 3rd gear by hydraulic control. Possible P, R and N also possible.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1871 sets, the possible cause of fault could be EDS valve power supply line.

DTC P1871 - EDS Valve Power Supply Circuit Shorted to Power

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Start engine and allow it to warm up at idle. Put gear selector in Part and set the parking brake. Observe "EDS 3,4,5,6's input ampere and output ampere" on the scan tool. Is the amperes within the values shown?	EDS ampere (0-2 Amp)	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector and TCM connector. Measure the voltage of the transaxle wiring terminal 5. Is the voltage within the values shown?	11-14V	Go to Step 4	Go to Step 5
4	Repair the circuit for a short to power. Is the action complete?	-	System OK	-
5	Remove the oil pan. Disconnect the EDS valve wiring connector. Turn the ignition ON. Measure the voltage of the EDS 3 terminal 2. Measure the voltage of the EDS 4 terminal 2. Measure the voltage of the EDS 5 terminal 2. Measure the voltage of the EDS 6 terminal 2. Is the voltage within the values shown?	11-14V	Go to Step 6	Go to Step 7
6	Repair the circuits(power supply lines) for a short to power. Is the action complete?	-	System OK	-
7	Replace the TCM. Is the action complete?	-	Go to Step 8	-
8	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Diagnostic Trouble Code(DTC) P1874

Solenoid Valve Power Supply Circuit Shorted To Power

Circuit Description

The pressure control valves (EDS valves 3,4,5 and 6) are precision electronic pressure regulators that control the operation of the clutches, brakes and lock-up clutch.

Conditions for Setting the DTC

No DTC P1873.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear.
Power supply cut off to the EDS valve.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1874 sets, the possible cause of fault could be solenoid valve power supply line.

DTC P1874 - Solenoid Valve Power Supply Circuit Shorted to Power

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Then, start engine and allow it to warm up at idle. Put gear selector in Park and set the parking brake. Observe "solenoid 1,2" on the scan tool. Is the solenoid ON ?	-	Go to "Diagnostic Aids"	Go to Step 3
3	Turn the ignition OFF. Disconnect the transaxle wiring connector and TCM connector. Measure the voltage of the transaxle wiring terminal 3. Is the voltage within the values shown?	11-14V	Go to Step 4	Go to Step 5
4	Repair the circuit for a short to power. Is the action complete?	-	System OK	-
5	Remove the oil pan. Disconnect the solenoid 1,2 wiring connector. Turn the ignition ON. Measure the voltage of the solenoid 1 terminal 2. Measure the voltage of the solenoid 2 terminal 2. Is the voltage within the values shown?	11-14V	Go to Step 6	Go to Step 7
6	Repair the circuits(power supply lines) for a short to power. Is the action complete?	-	System OK	-
7	Replace the TCM. Is the action complete?	-	Go to Step 8	-
8	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified exit DTC chart

Range	Park/ Neutral	Reverse	D				3			2		1
Gear	N	R	1st	2nd	3rd	4th	1st	2nd	3rd	1st	2nd	1st
Solenoid Valve 1	ON	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF
Solenoid Valve 2	ON	ON	ON	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF	ON
Line Pressure Control Solenoid Valve 3 (EDS 3)	OFF	OFF	OFF	ON	ON/ OFF	ON/ OFF	OFF	ON	ON/ OFF	OFF	ON	OFF
Line Pressure Control Solenoid Valve 4 (EDS 4)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Line Pressure Control Solenoid Valve 5 (EDS 5)	OFF	OFF	ON	ON	OFF	OFF	ON	ON	OFF	ON	ON	ON
Line Pressure Control Solenoid Valve 6 (EDS 6)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Brake B	A	A	A	.	A	.	A	.	A	A	.	A
Brake C	.	.	.	.	.	H	.	.	.	.	.	.
Brake D	.	H	.	.	.	.	.	.	.	.	.	.
Clutch E	.	.	.	A	A	A	.	A	A	.	A	.
Brake F	.	.	H	H	.	.	H	H	.	H	H	H
Lock-up Clutch	.	.	.	.	.	A	.	.	.	.	.	.
A = Applied H = Holding ON = The solenoid is energized. OFF = The solenoid is de-energized. = Manual Second-Third gear is only available above approximately 100 km/h (62 mph). * = Manual First-Second gear is only available above approximately 60 km/h (37 mph). Note : Manual First-Third gear is also possible at high vehicle speed as a safety feature.

Diagnostic Trouble Code(DTC) P1881

2-1 Shift Malfunction

Circuit Description

The special feature of 4HP 16 Auto Transaxle is that it operates without freewheels. Shifting between individual gears takes place by means of overlapping clutch engagement and release.

The advantage of overlap shifting are as follows:

- The transaxle can be of more compact design and is lighter on account of the absence of freewheels and the lower number of shift elements.

- Lower drag losses, i.e. higher efficiency.

- Lower peak torque acting on the components and driveline.

However, overlap shifting necessitates high-performance hardware and software, and precision engine signals.

Conditions for Setting the DTC

Transmission oil temperature is greater than -10°C (14°F).
Selector lever is not in N(Neutral), P(Park) position.
System voltage is greater than 9 volts.
No input speed error DTCs P0715, P0716, or P0717.
Output speed is greater than 256 rpm.
Input speed is greater than 400 rpm.
2-1 gear shift is active.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 3rd gear.
Open lock-up clutch.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1881 sets, the possible cause of fault could be TCM.

DTC P1881 - 2-1 Shift Malfunction

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Then, start engine and allow it to warm up at idle. Observe "idle rpm, TPS" on the scan tool. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 3
3	Inspect "ECM". Refer to Section 1F, System Diagnosis, EOBD System Check. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 4
4	Turn the ignition OFF. Disconnect the TCM wiring connector. Measure the voltage between terminal B3 and B13 of the transaxle wiring connector. Turn the ignition ON. Measure the voltage between terminal C15 and B13 of the transaxle wiring connector. Measure the voltage between terminal C16 and B13 of the transaxle wiring connector. Is the voltage within the values shown?	11-14V	Go to Step 5	Go to "System Voltage Low or High"
5	Replace the TCM. Is the action complete?	-	Go to Step 6	-
6	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Replace the transaxle assembly	Repair verified exit DTC chart

Range	Park/ Neutral	Reverse	D				3			2		1
Gear	N	R	1st	2nd	3rd	4th	1st	2nd	3rd	1st	2nd	1st
Solenoid Valve 1	ON	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF
Solenoid Valve 2	ON	ON	ON	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF	ON
Line Pressure Control Solenoid Valve 3 (EDS 3)	OFF	OFF	OFF	ON	ON/ OFF	ON/ OFF	OFF	ON	ON/ OFF	OFF	ON	OFF
Line Pressure Control Solenoid Valve 4 (EDS 4)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Line Pressure Control Solenoid Valve 5 (EDS 5)	OFF	OFF	ON	ON	OFF	OFF	ON	ON	OFF	ON	ON	ON
Line Pressure Control Solenoid Valve 6 (EDS 6)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Brake B	A	A	A	.	A	.	A	.	A	A	.	A
Brake C	.	.	.	.	.	H	.	.	.	.	.	.
Brake D	.	H	.	.	.	.	.	.	.	.	.	.
Clutch E	.	.	.	A	A	A	.	A	A	.	A	.
Brake F	.	.	H	H	.	.	H	H	.	H	H	H
Lock-up Clutch	.	.	.	.	.	A	.	.	.	.	.	.
A = Applied H = Holding ON = The solenoid is energized. OFF = The solenoid is de-energized. = Manual Second-Third gear is only available above approximately 100 km/h (62 mph). * = Manual First-Second gear is only available above approximately 60 km/h (37 mph). Note : Manual First-Third gear is also possible at high vehicle speed as a safety feature.

Diagnostic Trouble Code(DTC) P1883

3-2 Shift Malfunction

Circuit Description

The special feature of 4HP 16 Auto Transaxle is that it operates without freewheels. Shifting between individual gears takes place by means of overlapping clutch engagement and release.

The advantage of overlap shifting are as follows:

- The transaxle can be of more compact design and is lighter on account of the absence of freewheels and the lower number of shift elements.

- Lower drag losses, i.e. higher efficiency.

- Lower peak torque acting on the components and driveline.

However, overlap shifting necessitates high-performance hardware and software, and precision engine signals.

Conditions for Setting the DTC

Transmission oil temperature is greater than -10°C (14°F).
Selector lever is not in N(Neutral), P(Park) position.
System voltage is greater than 9 volts.
No input speed error DTCs P0715, P0716, or P0717.
Output speed is greater than 256 rpm.
Input speed is greater than 400 rpm.
3-2 gear shift is active.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 3rd gear.
Open lock-up clutch.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1883 sets, the possible cause of fault could be TCM.

DTC P1883 - 3-2 Shift Malfunction

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Then, start engine and allow it to warm up at idle. Observe "idle rpm, TPS" on the scan tool. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 3
3	Inspect "ECM". Refer to Section 1F, System Diagnosis, EOBD System Check. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 4
4	Turn the ignition OFF. Disconnect the TCM wiring connector. Measure the voltage between terminal B3 and B13 of the transaxle wiring connector. Turn the ignition ON. Measure the voltage between terminal C15 and B13 of the transaxle wiring connector. Measure the voltage between terminal C16 and B13 of the transaxle wiring connector. Is the voltage within the values shown?	11-14V	Go to Step 5	Go to "System Voltage Low or High"
5	Replace the TCM. Is the action complete?	-	Go to Step 6	-
6	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Replace the transaxle assembly	Repair verified exit DTC chart

Range	Park/ Neutral	Reverse	D				3			2		1
Gear	N	R	1st	2nd	3rd	4th	1st	2nd	3rd	1st	2nd	1st
Solenoid Valve 1	ON	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF
Solenoid Valve 2	ON	ON	ON	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF	ON
Line Pressure Control Solenoid Valve 3 (EDS 3)	OFF	OFF	OFF	ON	ON/ OFF	ON/ OFF	OFF	ON	ON/ OFF	OFF	ON	OFF
Line Pressure Control Solenoid Valve 4 (EDS 4)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Line Pressure Control Solenoid Valve 5 (EDS 5)	OFF	OFF	ON	ON	OFF	OFF	ON	ON	OFF	ON	ON	ON
Line Pressure Control Solenoid Valve 6 (EDS 6)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Brake B	A	A	A	.	A	.	A	.	A	A	.	A
Brake C	.	.	.	.	.	H	.	.	.	.	.	.
Brake D	.	H	.	.	.	.	.	.	.	.	.	.
Clutch E	.	.	.	A	A	A	.	A	A	.	A	.
Brake F	.	.	H	H	.	.	H	H	.	H	H	H
Lock-up Clutch	.	.	.	.	.	A	.	.	.	.	.	.
A = Applied H = Holding ON = The solenoid is energized. OFF = The solenoid is de-energized. = Manual Second-Third gear is only available above approximately 100 km/h (62 mph). * = Manual First-Second gear is only available above approximately 60 km/h (37 mph). Note : Manual First-Third gear is also possible at high vehicle speed as a safety feature.

Diagnostic Trouble Code(DTC) P1884

4-3 Shift Malfunction

Circuit Description

The special feature of 4HP 16 Auto Transaxle is that it operates without freewheels. Shifting between individual gears takes place by means of overlapping clutch engagement and release.

The advantage of overlap shifting are as follows:

- The transaxle can be of more compact design and is lighter on account of the absence of freewheels and the lower number of shift elements.

- Lower drag losses, i.e. higher efficiency.

- Lower peak torque acting on the components and driveline.

However, overlap shifting necessitates high-performance hardware and software, and precision engine signals.

Conditions for Setting the DTC

Transmission oil temperature is greater than -10°C (14°F).
Selector lever is not in N(Neutral), P(Park) position.
System voltage is greater than 9 volts.
No input speed error DTCs P0715, P0716, or P0717.
Output speed is greater than 256 rpm.
Input speed is greater than 400 rpm.
4-3 gear shift is active.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear.
Open lock-up clutch.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1884 sets, the possible cause of fault could be TCM.

DTC P1884 - 4-3 Shift Malfunction

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Then, start engine and allow it to warm up at idle. Observe "idle rpm, TPS" on the scan tool. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 3
3	Inspect "ECM". Refer to Section 1F, System Diagnosis, EOBD System Check. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 4
4	Turn the ignition OFF. Disconnect the TCM wiring connector. Measure the voltage between terminal B3 and B13 of the transaxle wiring connector. Turn the ignition ON. Measure the voltage between terminal C15 and B13 of the transaxle wiring connector. Measure the voltage between terminal C16 and B13 of the transaxle wiring connector. Is the voltage within the values shown?	11-14V	Go to Step 5	Go to "System Voltage Low or High"
5	Replace the TCM. Is the action complete?	-	Go to Step 6	-
6	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Replace the transaxle assembly	Repair verified exit DTC chart

Range	Park/ Neutral	Reverse	D				3			2		1
Gear	N	R	1st	2nd	3rd	4th	1st	2nd	3rd	1st	2nd	1st
Solenoid Valve 1	ON	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF
Solenoid Valve 2	ON	ON	ON	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF	ON
Line Pressure Control Solenoid Valve 3 (EDS 3)	OFF	OFF	OFF	ON	ON/ OFF	ON/ OFF	OFF	ON	ON/ OFF	OFF	ON	OFF
Line Pressure Control Solenoid Valve 4 (EDS 4)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Line Pressure Control Solenoid Valve 5 (EDS 5)	OFF	OFF	ON	ON	OFF	OFF	ON	ON	OFF	ON	ON	ON
Line Pressure Control Solenoid Valve 6 (EDS 6)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Brake B	A	A	A	.	A	.	A	.	A	A	.	A
Brake C	.	.	.	.	.	H	.	.	.	.	.	.
Brake D	.	H	.	.	.	.	.	.	.	.	.	.
Clutch E	.	.	.	A	A	A	.	A	A	.	A	.
Brake F	.	.	H	H	.	.	H	H	.	H	H	H
Lock-up Clutch	.	.	.	.	.	A	.	.	.	.	.	.
A = Applied H = Holding ON = The solenoid is energized. OFF = The solenoid is de-energized. = Manual Second-Third gear is only available above approximately 100 km/h (62 mph). * = Manual First-Second gear is only available above approximately 60 km/h (37 mph). Note : Manual First-Third gear is also possible at high vehicle speed as a safety feature.

Diagnostic Trouble Code(DTC) P1885

3-1 Shift Malfunction

Circuit Description

The special feature of 4HP 16 Auto Transaxle is that it operates without freewheels. Shifting between individual gears takes place by means of overlapping clutch engagement and release.

The advantage of overlap shifting are as follows:

- The transaxle can be of more compact design and is lighter on account of the absence of freewheels and the lower number of shift elements.

- Lower drag losses, i.e. higher efficiency.

- Lower peak torque acting on the components and driveline.

However, overlap shifting necessitates high-performance hardware and software, and precision engine signals.

Conditions for Setting the DTC

Transmission oil temperature is greater than -10°C (14°F).
Selector lever is not in N(Neutral), P(Park) position.
System voltage is greater than 9 volts.
No input speed error DTCs P0715, P0716, or P0717.
Output speed is greater than 256 rpm.
Input speed is greater than 400 rpm.
3-1 gear shift is active.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 3rd gear.
Open lock-up clutch.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1885 sets, the possible cause of fault could be TCM.

DTC P1885 - 3-1 Shift Malfunction

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Then, start engine and allow it to warm up at idle. Observe "idle rpm, TPS" on the scan tool. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 3
3	Inspect "ECM". Refer to Section 1F, System Diagnosis, EOBD System Check. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 4
4	Turn the ignition OFF. Disconnect the TCM wiring connector. Measure the voltage between terminal B3 and B13 of the transaxle wiring connector. Turn the ignition ON. Measure the voltage between terminal C15 and B13 of the transaxle wiring connector. Measure the voltage between terminal C16 and B13 of the transaxle wiring connector. Is the voltage within the values shown?	11-14V	Go to Step 5	Go to "System Voltage Low or High"
5	Replace the TCM. Is the action complete?	-	Go to Step 6	-
6	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Replace the transaxle assembly	Repair verified exit DTC chart

Range	Park/ Neutral	Reverse	D				3			2		1
Gear	N	R	1st	2nd	3rd	4th	1st	2nd	3rd	1st	2nd	1st
Solenoid Valve 1	ON	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF	ON/ OFF
Solenoid Valve 2	ON	ON	ON	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF	ON
Line Pressure Control Solenoid Valve 3 (EDS 3)	OFF	OFF	OFF	ON	ON/ OFF	ON/ OFF	OFF	ON	ON/ OFF	OFF	ON	OFF
Line Pressure Control Solenoid Valve 4 (EDS 4)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Line Pressure Control Solenoid Valve 5 (EDS 5)	OFF	OFF	ON	ON	OFF	OFF	ON	ON	OFF	ON	ON	ON
Line Pressure Control Solenoid Valve 6 (EDS 6)	ON	OFF	ON	ON	ON	OFF	ON	ON	ON	ON	ON	ON
Brake B	A	A	A	.	A	.	A	.	A	A	.	A
Brake C	.	.	.	.	.	H	.	.	.	.	.	.
Brake D	.	H	.	.	.	.	.	.	.	.	.	.
Clutch E	.	.	.	A	A	A	.	A	A	.	A	.
Brake F	.	.	H	H	.	.	H	H	.	H	H	H
Lock-up Clutch	.	.	.	.	.	A	.	.	.	.	.	.
A = Applied H = Holding ON = The solenoid is energized. OFF = The solenoid is de-energized. = Manual Second-Third gear is only available above approximately 100 km/h (62 mph). * = Manual First-Second gear is only available above approximately 60 km/h (37 mph). Note : Manual First-Third gear is also possible at high vehicle speed as a safety feature.

Diagnostic Trouble Code(DTC) P1886

4-2 Shift Malfunction

Circuit Description

The special feature of 4HP 16 Auto Transaxle is that it operates without freewheels. Shifting between individual gears takes place by means of overlapping clutch engagement and release.

The advantage of overlap shifting are as follows:

- The transaxle can be of more compact design and is lighter on account of the absence of freewheels and the lower number of shift elements.

- Lower drag losses, i.e. higher efficiency.

- Lower peak torque acting on the components and driveline.

However, overlap shifting necessitates high-performance hardware and software, and precision engine signals.

Conditions for Setting the DTC

Transmission oil temperature is greater than -10°C (14°F).
Selector lever is not in N(Neutral), P(Park) position.
System voltage is greater than 9 volts.
No input speed error DTCs P0715, P0716, or P0717.
Output speed is greater than 256 rpm.
Input speed is greater than 400 rpm.
4-2 gear shift is active.
Immediately after the above condition occurs.

Action Taken When The DTC Sets

The Malfunction Indicator Lamp(MIL) will illuminate.
The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.
Adopt Emergency/ Substitute mode and constant 4th gear.
Open lock-up clutch.

Conditions for Clearing the MIL/DTC

The MIL will turn OFF when the malfunction has not occurred after three-ignition cycle.
A history DTC will clear after 40 consecutive warm up cycles without a fault.
Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P1886 sets, the possible cause of fault could be TCM.

DTC P1886 - 4-2 Shift Malfunction

Step	Action	Value(s)	Yes	No
1	Perform an On-Board Diagnostic (EOBD) System Check. Is the check completed?	-	Go to Step 2	Go to "On-Board Diagnostic System Check"
2	Install the scan tool. Turn the ignition ON, with the engine OFF. Then, start engine and allow it to warm up at idle. Observe "idle rpm, TPS" on the scan tool. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 3
3	Inspect "ECM". Refer to Section 1F, System Diagnosis, EOBD System Check. Was a problem found?	-	Go to "Engine Diagnostic Information"	Go to Step 4
4	Turn the ignition OFF. Disconnect the TCM wiring connector. Measure the voltage between terminal B3 and B13 of the transaxle wiring connector. Turn the ignition ON. Measure the voltage between terminal C15 and B13 of the transaxle wiring connector. Measure the voltage between terminal C16 and B13 of the transaxle wiring connector. Is the voltage within the values shown?	11-14V	Go to Step 5	Go to "System Voltage Low or High"
5	Replace the TCM. Is the action complete?	-	Go to Step 6	-
6	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Replace the transaxle assembly	Repair verified exit DTC chart