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SCHEMATIC AND ROUTING DIAGRAMS

TRANSAXLE CONTROL MODULE

2.0L DOHC (DELPHI 32bit) (1 of 2)


U5A15A01
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2.0L DOHC (DELPHI 32bit) (2 of 2)


U5A15A02
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SHIFT MODE DIAGRAM

Economic mode (2.0L DOHC EOBD)


UAA5A4N0
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Lock up clutch applied (economic mode ; Third gear, Fourth gear) (2.0L DOHC EOBD)


UAA5A4P0
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Power mode (2.0L DOHC EOBD)


UAA5A4Q0
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Hold mode (2.0L DOHC EOBD)


UUA5A4R0
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POWER FLOW DIAGRAM

Park/Neutral


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Park/Neutral

In Park and Neutral and engine is running. And there is no drive to the planetary gear set. Line pressure(comes from oil pump) apply valve body. Only clutch B apply and torque converter is released.

Control

Line pressure control valve

The line pressure control valve sets the general pressure level in the valve body. When gearshifts are not taking place, the line pressure varies between two levels, depending on the turbine torque. Line pressure increase linearly by time. But it has a limit point. When pressure reach that point, oil pressure drain to the oil sump.

Reduction valve

The reduction valve reduces the line pressure with which the downstream solenoid valves and pressure control solenoid valve (EDS)are charged. It is possible to use smaller solenoid valves as a result.
The line pressures comes from the oil pump flow to the eleven spool of the reduction valve and press the fourteen spool of the reduction valve via the twelve spool. As a result, the eleven spool is blocked. So the line pressure is control to the appropriate level.

Solenoid valve 1, 2

Solenoid 1 control the high or low of the line pres-sure(flow to each clutch valve) by the operation type(ON/OFF), i.e. solenoid 1 is ON, line pressure will be low(6~8bar), solenoid 1 is OFF, line pressure will be high(16~18bar).
Solenoid 2 controls the oil flow to clutch valve E or lockup clutch valve by the ON/OFF signal.
The TCM monitors numerous inputs to determine the appropriate solenoid state combination and transaxle gear for the vehicle operating conditions.
In Park and Neutral solenoid valve 1 is ON. So line pressure flow to the safety valve and the line pressure control valve via the solenoid valve.
When solenoid 1 is ON, Line pressure is controlled at a Lower level compare with when solenoid 1 is OFF.

Clutch B engaged

In Park and Neutral solenoid valve 1, 2 are ON and EDS4, 6 are ON.
As EDS 6 is ON, the oil which is supplied from the reduction valve flow to the sixty two spool of thesafety valve via the sixty port of the EDS, and flow clutch valve B, input port holding valve B via the sixty three spool of the safety valve.
The oil that is supplied to input port(64) of the clutch valve presses the valve spool. As a result, line pressure flow 102 port to via 101 port.
In this manner, clutch B is engaged, check ball is block the brake D direction.
The oil, which is supplied to 102 port, is connect to 103 port, 104 port(clutch valve spool).
Oil pushing the spool above, as a result, clutch B is released.

Lock up clutch

Solenoid valve 2 is ON, line pressure control valve spool compressed, flow to the 131port via 130 port of the torque converter pressure valve.
As a result, the oil pressure behind the converter lockup clutch piston and in the turbine zone is equal. The direction of flow is through the turbine shaft and through the space behind the piston, to the turbine chamber. Lubrication, cooling.
The lubricating valve ensures that the converter is supplied with cooling oil first if the pump rate is low. The lubricating pressure valve in addition guarantees that the necessary amount of cooling and lubricating oil is available via the bypass duct.
The oil which is supplied from torque converter flow to 135 port via 133,134 port, and flow to cooler via lubrication valve

Reverse


UAA5A3N0
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Reverse

In Reverse, transaxle drive is via the input shaft and the clutch B. the elements of the transaxle function as follows;

Control

Clutch B(remain)

The line pressure, which is supplied to oil pump, is directly engage. This time the place of check ball is change.

Brake D engaged

he line pressure, which engaged clutch, B is waiting at the 91port of clutch valve D.
In Reverse, solenoid is switched ON and EDS 4 switched OFF. So the oil which is supplied to reduction valve is flow to the 42 port of the clutch valve D via the 40, 41 port of the EDS 4.
The spool of the clutch valve pressed to below. So line pressure flow to the 95 port via the 93, 94 port. As a rule, valve spool push against direction.

Lock up clutch

Solenoid valve 2 switch ON, line pressure control valve spool compressed, flow to the 131port via 130 port of the torque converter pressure valve.
As a result, the oil pressure behind the converter lockup clutch piston and in the turbine zone is equal. The direction of flow is through the turbine shaft and through the space behind the piston, to the turbine chamber.

Lubrication, cooling

The lubricating valve ensures that the converter is supplied with cooling oil first if the pump rate is low. The lubricating pressure valve in addition guarantees that the necessary amount of cooling and lubricating oil is available via the bypass duct.
The oil which is supplied from torque converter flow to 135 port via 133,134 port, and flow to cooler via lubrication valve.

Drive range-First gear


UAA5A3P0
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Drive range - First gear

In Drive 1, transaxle drive is via the input shaft to the clutch B. the elements of the transaxle function as follows:

Control

Clutch B engaged

In Park and Neutral solenoid valve 1, 2 are ON and EDS4, 6 are ON. As EDS 6 is ON, the oil which is supplied from the reduction valve flow to the sixty two spool of the safety valve via the sixty port of the EDS, and flow clutch valve B, input port holding valve B via the sixty three spool of the safety valve.
The oil that is supplied to input port (64) of the clutch valve presses the valve spool. As a result, line pressure flow to the 102 port to via the 101 port.
In this manner, clutch B is engaged, check ball is blocked the brake D direction.
The oil, which is supplied to the 102 port, connects to the 103 port, 104 port (clutch valve spool).
Oil pushing the spool above, as a result, clutch B is released.

Clutch F engaged

EDS 5 switched ON. The line pressure which passed through the reduction valve flow to the 52 port of the holding valve, the 55,56 ports of the clutch valve upper input port. As a result valve spool pressed.

Lock up clutch

Solenoid valve 2 switch ON, line pressure control valve spool compressed, flow to the 131port via 130 port of the torque converter pressure valve.
As a result, the oil pressure behind the converter lockup clutch piston and in the turbine zone is equal. The direction of flow is through the turbine shaft and through the space behind the piston, to the turbine chamber.

Lubrication, cooling

The lubricating valve ensures that the converter is supplied with cooling oil first if the pump rate is low. The lubricating pressure valve in addition guarantees that the necessary amount of cooling and lubricating oil is available via the bypass duct.
The oil which is supplied from torque converter flow to 135 port via 133,134 port, and flow to cooler via lubrication valve.

Drive range-Second gear


UAA5A3Q0
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Drive range - Second Gear

In Drive 2, transaxle drives is via the input shaft and clutch E. the elements of the transaxle function as follows;

Control

Clutch E engaged

Solenoid 2 switched OFF. So the line pressure which is supplied from the 12 port of the reduction valve flow to the upper inlet port(34,35,36 port)of the clutch valve E. Line pressure connect to the 72 port.
As a result, clutch E engaged.

Clutch F engaged

EDS 5 switched ON. The line pressure which passed through the reduction valve flow to the 52 port of the holding valve, the 55,56 ports of the clutch valve upper input port. As a result valve spool pressed.

Lock up clutch

Solenoid valve 2 is ON, line pressure control valve spool compressed, flow to the 131port via 130 port of the torque converter pressure valve.
As a result, the oil pressure behind the converter lockup clutch piston and in the turbine zone is equal. The direction of flow is through the turbine shaft and through the space behind the piston, to the turbine chamber.

Lubrication, cooling

The lubricating valve ensures that the converter is supplied with cooling oil first if the pump rate is low. The lubricating pressure valve in addition guarantees that the necessary amount of cooling and lubricating oil is available via the bypass duct.
The oil which is supplied from torque converter flow to 135 port via 133,134 port, and flow to cooler via lubrication valve.

Drive range-Third gear


UAA5A3R0
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Drive range - Third Gear

In Drive 3, transaxle drive is via the input shaft to the clutch B,E. the elements of the transaxle function as follows;

Control

Clutch B engaged

In Park and Neutral solenoid valve 1, 2 are ON and EDS 4, 6 are ON.
As EDS 6 is ON, the oil which is supplied from the reduction valve flow to the sixty two spool of the safety valve via the sixty port of the EDS, and flow clutch valve B, input port holding valve B via the sixty three spool of the safety valve.
The oil, which is, supplied to input port(64) of the clutch valve press the valve spool. As a result, line pressure flow 102 port to via 101 port.
In this manner, clutch B is engaged, check ball is block the brake D direction.
The oil, which is supplied to 102 port, is connect to 103 port, 104 port(clutch valve spool).
Oil pushing the spool above, as a result, clutch B is released.

Lock up clutch

Solenoid valve 2 is ON, line pressure control valve spool compressed, flow to the 131port via 130 port of the torque converter pressure valve.
As a result, the oil pressure behind the converter lockup clutch piston and in the turbine zone is equal. The direction of flow is through the turbine shaft and through the space behind the piston, to the turbine chamber.

Drive range-Fourth gear


UAA5A3S0
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Drive range - Fourth Gear

In Drive 4, transaxle drive is via the input shaft to the clutch E,C. The elements of the transaxle function as follows; no-slip converter drive.

Control

Clutch E engaged

Solenoid 2 switched OFF. So the line pressure which is supplied from the 12 port of the reduction valve flow to the upper inlet port(34, 35, 36 port)of the clutch valve E. Line pressure connect to the 72 port.
As a result, clutch E engaged.
Clutch C engaged

EDS 4 is OFF. So oil level is high.

The line pressure flow to the 44 port of the safety valve via the 40, 41, 42, 43 ports.
The spools of the clutch valve D, holding valve D pressed to low.
And, the oil which is supplied to the safety valve flow to the 46, 47 ports of the holding valve C via the 45 port.

Lock up clutch

Solenoid valve 2 is ON, line pressure control valve spool compressed, flow to the 131port via 130 port of the torque converter pressure valve.
As a result, the oil pressure behind the converter lockup clutch piston and in the turbine zone is equal. The direction of flow is through the turbine shaft and through the space behind the piston, to the turbine chamber.

Drive range-Fourth gear; Emergency/Substitute mode


UAA5A3T0
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Drive range - Fourth Gear ; Emergency/Substitute Mode

In Drive 4, transaxle drive is via the input shaft to the clutch E. The elements of the transaxle function as follows; no-slip converter drive.

Control

Clutch E engaged

Solenoid 2 switched OFF. So the line pressure which is supplied from the 12 port of the reduction valve flow to the upper inlet port(34, 35, 36 port)of the clutch valve E.
Line pressure connect to the 72 port. As a result, clutch E engaged.

Clutch C engaged

EDS 4 is OFF. So oil level is high.
The line pressure flow to the 44 port of the safety valve via the 40, 41, 42, 43 ports.
The spools of the clutch valve D, holding valve D pressed to low.
And, the oil which is supplied to the safety valve flow to the 46, 47 ports of the holding valve C via the 45 port.

Drive range-Third gear ; Emergency/Substitute mode


UAA5A3U0
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Drive Range - Third Gear ; Emergency/Substitute Mode

In Drive 3, transaxle drive is via the input shaft to the clutch B, E. the elements of the transaxle function as follows;

Control

Clutch B engaged

In Park and Neutral solenoid valve 1, 2 are ON and EDS4, 6 are ON. As EDS 6 is ON, the oil which is supplied from the reduction valve flow to the sixty two spool of the safety valve via the sixty port of the EDS, and flow clutch valve B, input port holding valve B via the sixty three spool of the safety valve.
The oil, which is, supplied to input port(64) of the clutch valve press the valve spool. As a result, line pressure flow 102 port to via 101 port.
In this manner, clutch B is engaged, check ball is block the brake D direction.
The oil, which is supplied to 102 port, is connect to 103 port, 104 port(clutch valve spool).
Oil pushing the spool above, as a result, clutch B is released.

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS TABLE


UAA5A3V0
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Scan Tool

UAA5A3W0
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DW 110-060 Engine Support Fixture

UAA5A3X0
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DW 260-020 Transaxle Holding Fixture

UAA5A3Y0
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DW 260-010 Transaxle Support Fixture

UAA5A3Z0
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DW 260-030 Axle Seal Installer

UAA5A4B0
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DW 260-050 Park/Neutral Position Switch Installer

UAA5A4C0
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DW 260-060 Brake F Split Stop Ring Remover/Installer

UAA5A4D0
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DW 260-070 Transaxle Fluid Plug Remover/Installer

UAA5A4E0
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DW 240-010-6 Universal Pressure Gauge Set

UAA5A4E0
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DW 260-150 Clutch E Stop Ring Remove/Installer

UAA5A4G0
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DW 260-140 Clutch B Stop Ring Remover/Installer

UAA5A4H0
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DW 260-160 Brake C/D Snap Ring Remover/Installer

UAA5A4J0
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DW 260-080 Clutch B/E Shim Setting Gauge

UAA5A4U0
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DW 260-120 Clutch B Adjust Ring

UAA5A4T0
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DW 260-130 Clutch E Adjust Ring

UAA5A5B0
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DW 260-100 Clutch B/E Disc Thickness Measuring Fixture

UAA5A5A0
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DW 260-090 Clutch B/E (Snap Ring Play, Installation Space) Measuring Fixture

UAA5A5C0
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DW 260-110 Brake F Disc Clearance Measuring Bar


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