B11C1 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B11C1 – Passenger Side Rear Door Ajar Switch General Electrical Failure

 

B11C1 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B11C1 Possible Causes

 

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

 

B11C1 Description

 

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