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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Body Control Module (BCM) - DTCS B10B3-14 To B1812-15) >> DTC Troubleshooting >> B16FF-11-Rear Left Fog Lamp Control - Circuit Short To Ground >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

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. Refer to OPERATION .

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