TCM Wiring Circuits

If component and/or circuit fault is diagnosed, check appropriate circuit between component and TCM connector terminal(s). Repair as necessary. If component and circuits are okay, replace TCM. For TCM connector terminal locations, See Fig 2. For TCM connector terminal identification, see TCM CONNECTOR TERMINAL IDENTIFICATION table.

TCM CONNECTOR TERMINAL IDENTIFICATION

Terminal No. ⁽¹⁾⁽²⁾

Component

Connector "A"

RPM/Speed Sensor

RPM/Speed Sensor Ground

Gear Position Sensor

Lock-Up Solenoid

Battery Power

Vehicle Speed Sensor (VSS) Signal

VSS Ground Signal

Oil Temperature Sensor Signal

Oil Temperature Sensor Ground Signal

TCM Signal Ground

Solenoid STH Control Signal

Solenoid STH Ground Signal

Shift Solenoid S1 Control Signal

Shift Solenoid S2 Control Signal

Power Ground

Battery Voltage From Ignition Switch

Connector "B"

Turbo Torque Control Signal To ECM

TC1 Torque Control Signal To ECM

TC2 Torque Control Signal To ECM

Torque Control Acknowledge Signal From TCM

Warning Indicator Light Control Signal

Engine Load Signal From ECM

Gear Position Sensor Signal

MIL Request Signal To ECM

Mode Selector Switch (MS2)

Mode Selector Switch (MS1)

TP Sensor Signal From ECM

Brake Light Switch Signal

Kickdown Switch Signal

⁽¹⁾	For terminal locations, refer to illustration. See Fig 2.

⁽²⁾	Terminals not listed are blank.

Fig 1: Identifying Transaxle Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: TCM Connector Terminal Identification

Courtesy of VOLVO CARS OF NORTH AMERICA.