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Home >> Chevrolet >> 2018 >> Traverse LS, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Front Fog Lamps Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, park lamps ON.
  2. Verify the scan tool Front Fog Lamps Switch parameter changes between Active and Inactive while commanding the front fog lamps ON and OFF with the front fog lamp switch.
    • If the parameter does not change 

      Refer to Front Fog Lamp Switch Malfunction.

    • Go to next step: If the parameter changes 
  3. Verify the front fog lamps turn ON and OFF when commanding the Front Fog Lamps ON and OFF with a scan tool.
    • If the front fog lamps do not turn ON and OFF 

      Refer to Front Fog Lamps Malfunction.

    • Go to next step: If the front fog lamps turn ON and OFF 
  4. Verify the front fog lamp indicator on the instrument cluster turns ON and OFF while commanding the front fog lamps ON and OFF with the front fog lamp switch.
    • If the front fog lamp indicator does not turn ON and OFF 

      Refer to Front Fog Lamp Indicator Malfunction.

    • Go to next step: If the front fog lamp indicator turns ON and OFF 
  5. All OK.
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