B16BF Code: Meaning, Causes, and Symptoms | OBD2 Codes

B16BF – Front Left Sidemarker Lamp Control Circuit

 

B16BF Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B16BF Possible Causes

 

Faulty Front Left Sidemarker Lamp,Front Left Sidemarker Lamp harness is open or shorted,Front Left Sidemarker Lamp circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B16BF Description

 

The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. The BCM provides a Pulse Width Modulated (PWM) voltage output through the front left side marker control circuit. The control circuit connects to the Park Lamps. A ground path for the lamps is present through the harness to the body sheet metal. For additional information on the Park Lamps operation. When the Body Control Module (BCM) detects a low condition on the Left Front Side Marker Lamp Driver circuit and sets the Diagnostic Trouble Code (DTC).