Engine Control System
CIRCUIT DESCRIPTION
The shift solenoid valve SL 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 SL OFF.
DETECTING CONDITION
WIRING DIAGRAM
INSPECTION PROCEDURE