B13BF Code: Meaning, Causes, and Symptoms | OBD2 Codes

B13BF – Run/Start Input Circuit Short to Ground Or Open


B13BF Possible Symptoms


Air Bag Warning Light ON


B13BF Possible Causes


Faulty Battery Energy Control Module (BECMB),Battery Energy Control Module (BECMB) harness is open or shorted,Battery Energy Control Module (BECMB) circuit poor electrical connection


B13BF Description


The Battery Energy Control Module (BECMB) provides battery voltage to the Restraints Control Module (RCM) and Occupant Classification System Module (OCSM). The BECMB compares HS-CAN1 messages to ignition voltage inputs. If the status of the HS-CAN1 message and the voltage input do not match, the BECMB sets a Diagnostic Trouble Code (DTC). A fault is indicated when the hard-wired ignition input to the BECMB is inactive, but the BECMB receives an ignition status on the HS-CAN1 that contradicts the hard-wired input status.