C1091 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1091 – ABS Brake Lamp Control Circuit High
C1091 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1091 Possible Causes
Faulty ABS Brake Lamp,ABS Brake Lamp harness is open or shorted,ABS Brake Lamp circuit poor electrical connection
The Anti-Lock Brake System (ABS) Module monitors the ABS Brake Lamp. The ABS Module sets the OBDII code when the ABS Brake Lamp is not to factory specifications.