FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Solenoid Valves SLU, TCM FA 57 (531)



Solenoid Valves SLU, TCM FA 57 (531)







Main use
To regulate the oil pressure to the lock-up clutch.

Type
Electromagnetic, PWM governed.







Activation
The solenoid is governed from pin 25 (B) on TCM using a 300 Hz PWM signal. Grounding takes place on pin 12 (B) on TCM. The current varies between 0-1000 mA. The solenoid is closed when current is not applied. 0 A = low oil pressure 1000 mA = high oil pressure.