C1291 CHEVROLET – Open Brake Lamp Switch Contacts During Deceleration

C1291 CHEVROLET Possible Symptoms

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

C1291 CHEVROLET Possible Causes

Faulty Brake Lamp Switch,Brake Lamp Switch harness is open or shorted,Brake Lamp Switch circuit poor electrical connection

C1291 CHEVROLET Description

The stop lamp switch signal informs the Electronic Brake Control Module (EBCM) when the brake pedal is pressed. The EBCM sets the OBDII code when the Brake Lamp Switch is not to factory specifications.