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Home >> GMC >> 1996 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Gasoline >> Testing >> Daytime Running Lights (DRL) >> Fog Lamps Remain Lit With Fog Lamp Switch Off

Fog Lamps Remain Lit With Fog Lamp Switch Off

  1. Remove fog lamp relay. If fog lamps turn off, go to next step. If fog lamps do not turn off, service/repair short to voltage in Purple wire between fog lamp switch, left/right fog lamp and convenience center.
  2. Disconnect fog lamp switch connector. If fog lamps turn off, replace fog lamp switch. If fog lamps do not turn off, service/repair short to voltage in Yellow wire between fog lamp switch and convenience center.