Operation CHARM: Car repair manuals for everyone.

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