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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Lamps/Lighting - Exterior (Service Information)) >> Diagnosis And Testing >> Diagnosis And Testing - Exterior Lighting >> Front Fog Lamps

Front Fog Lamps

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.
NOTE:

For vehicles in certain markets, the front fog lamps are designed to operate ONLY while the headlamp low beams are illuminated. If the headlamp low beams do not illuminate, diagnose and repair that problem before attempting to repair the front fog lamp system. Refer to the appropriate diagnostic information.

CONDITION POSSIBLE CAUSES CORRECTION
FRONT FOG LAMP DOES NOT ILLUMINATE 1. Ineffective or missing bulb. 1. Test and replace front fog lamp bulb if required.
2. Ineffective ground circuit. 2. Test and repair open front fog lamp ground circuit if required.
3. Ineffective feed circuit. 3. Test and repair open front fog lamp feed circuit if required.
4. Ineffective switch. 4. Test and replace headlamp switch if required.
5. Ineffective BCM inputs or outputs. 5. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information.
FRONT FOG LAMP DOES NOT EXTINGUISH 1. Ineffective feed circuit. 1. Test and repair shorted front fog lamp feed circuit if required.
2. Ineffective switch. 2. Test and replace the headlamp switch if required.
3. Ineffective BCM inputs or outputs. 3. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information.