B16C3 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B16C3 – Front Right Sidemarker Lamp Control Circuit


B16C3 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B16C3 Possible Causes


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


B16C3 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 right 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 high condition on the (L78) Right Front Side Marker Lamp Driver circuit and sets the Diagnostic Trouble Code (DTC).