B16F7 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B16F7 – Front Left Fog Lamp Control Circuit


B16F7 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B16F7 Possible Causes


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


B16F7 Description


The Body Control Module (BCM) receives the input from the headlamp switch requesting fog lamp illumination. The BCM provides a pulse width modulated (PWM) voltage output through the fog lamp driver circuit, which connects to the Fog Lamp. A ground path for the lamps is present through the harness to the body sheet metal. For additional information on the Fog Lamp operation. When the Body Control Module (BCM) detects a low condition on the Left Front Fog Lamp Driver circuit sets the Diagnostic Trouble Code (DTC).