B16D7 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B16D7 – Left Tail Lamp 1 Control Circuit


B16D7 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B16D7 Possible Causes


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


B16D7 Description


The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. The BCM provides a voltage output through the left rear park lamp 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 Rear Park Lamp Driver circuit sets the Diagnostic Trouble Code (DTC).