9-3 SE Hatchback (9400) L4-2.0L Turbo (B205) HO (2000)
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Brake Light Switch: Description and Operation
Brake light switch
The brake light switch supplies the control module and the shift-lock relay with information.
Depressing the brake pedal will activate the brake light switch and send information to control module pin 36, which will disengage the lock-up
function if the engine speed is below 2000 rpm. Activation puts B+ on pin 36.
The shift-lock function mechanically locks the gear lever in the P position when the engine is being started. Depressing the brake pedal checks the
shift-lock relay and releases the mechanical lock.
Brake light switch not connected to bus
