Brake Switch - TCC: 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 26, which will disengage the lock-up function if the engine speed is below 2000 rpm. Activation puts B+ on pin 26.

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.