B11C0 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B11C0 – Driver Side Rear Door Ajar Switch General Electrical Failure

 

B11C0 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B11C0 Possible Causes

 

Faulty Driver Side Rear Door Ajar Switch,Driver Side Rear Door Ajar Switch harness is open or shorted,Driver Side Rear Door Ajar Switch circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B11C0 Description

 

The Body Control Module (BCM) monitors the Driver Side Rear Door Ajar Switch. The BCM sets the OBDII code when the BCM detects an open from the left rear door ajar circuit.