9-3 (9440) L4-2.0L Turbo (2.0 HOT) (2003)
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Torque Converter Clutch Solenoid: Description and Operation
Solenoid Valves SLU, TCM FA 57 (531)
Solenoid valves TCM, SLU (531)
Location
Solenoid valves, TCM (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 300Hz 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. 0A = low oil pressure 1000mA = high oil pressure.
