9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
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Pressure Regulating Solenoid: Description and Operation
Solenoid Valves SLS, TCM FA 57 (531)
Solenoid Valves SLS, TCM FA 57 (531)
Main use
To regulate the oil pressure to the various clutches/brakes in the transmission.
Type
Electromagnetic, PWM governed.
Activation
The solenoid is governed from pin 26 (B) on TCM using a 300 Hz PWM voltage. Grounding takes place on pin 36 (B) on TCM. The current varies
between 0-1000 mA. The solenoid is open when current is not applied. 0 A = high oil pressure 1000 mA = low oil pressure.
