Engine Control System

CIRCUIT DESCRIPTION
The shift solenoid valve SL is turned ON and OFF by signals from the Engine Control Module (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.




DIAGNOSTIC CHART




WIRING DIAGRAM










INSPECTION PROCEDURE