9-3 (9440) V6-2.8L Turbo (2008)
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Shift Solenoid: Description and Operation
6-Speed, AF 40
Solenoid Valve S1, TCM AF 40 (531)
Solenoid Valve S1, TCM AF 40 (531)
Location
The solenoid valve is mounted in the gearbox valve housing.
Main use
The valve is used by TCM when activating C2. The pressure to SLC2 is then raised from system pressure to D-pressure. The valve is also used to apply
pressure to brake B2 for engine braking in 1st gear.
Type
Electromagnetic, normally open
