B1D13 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1D13 – Interior Lights Circuit ‘A’

 

B1D13 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1D13 Possible Causes

 

Faulty Interior Lights Circuit ‘A’,Interior Lights Circuit ‘A’ harness is open or shorted,Interior Lights Circuit ‘A’ circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B1D13 Description

 

The Body Control Module (BCM) monitors the Interior Lights Circuit ‘A’. The BCM sets the OBDII code when the Interior Lights Circuit ‘A’ is not to factory specifications.