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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 >> Park, License, and/or Tail Lamps Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Park Lamps Switch parameter changes between Active and Inactive while commanding the park lamps ON and OFF with the headlamp switch.
    • If the parameter does not change 

      Refer to Headlamp Switch Malfunction.

    • Go to next step: If the parameter changes 
  3. Verify the left park lamps turn ON and OFF when commanding the Left Park Lamps ON and OFF with a scan tool.
    • If the left park lamps do not turn ON and OFF 

      Refer to Park Lamps Malfunction.

    • Go to next step: If the left park lamps turn ON and OFF 
  4. Verify the right park lamps turn ON and OFF when commanding the Right Park Lamps ON and OFF with a scan tool.
    • If the right park lamps do not turn ON and OFF 

      Refer to Park Lamps Malfunction.

    • Go to next step: If the right park lamps turn ON and OFF 
  5. Verify the license plate lamps turn ON and OFF when commanding the License Plate Lamps ON and OFF with a scan tool.
    • If the license plate lamps do not turn ON and OFF 

      Refer to License Plate Lamps Malfunction.

    • Go to next step: If the license plate lamps turn ON and OFF 
  6. All OK.
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