Troubleshooting

DTC P0743 Torque Converter Clutch Circuit Electrical (Shift Solenoid Valve DSL)

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The shift solenoid valve DSL is turned ON and OFF by signals from the ECM to control the hydraulic pressure acting on the lock-up relay valve, which then controls operation of the lock-up clutch.

Fail safe function:
If the ECM detects a malfunction, it turns the shift solenoid valve DSL OFF.

Wiring Diagram:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURE