Stop Lamp Suppression Relay

Task
Interrupt the voltage supply to the stop lamp switch when the Brake Assist System (BAS) solenoid valve (A7/7y1) is actuated by the Electronic Stability Program (ESP), Speed-Sensitive Power Steering (SPS) and BAS control module (N47-5).

This prevents the stop lamps coming on when the brake booster is actuated which is only used for stabilizing the vehicle.