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Home >> Chevrolet >> 2011 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Lighting System) >> Diagnostic Information and Procedures >> Interior Backlighting Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2012 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Vehicle in Service Mode, park lamps ON.
  2. Verify the scan tool LED Backlight Dimming Command parameter changes between a high percentage to a low percentage while operating the dimmer switch from high to low.
    • If the parameter does not change 

      Refer to Dimmer Switch Malfunction.

    • If the parameter changes 
  3. Verify the backlighting components turn ON and OFF while commanding the LED Backlight Dimming ON and OFF with a scan tool.
    • If the backlighting components do not turn ON and OFF 

      Refer to Interior Backlighting Malfunction.

    • If the backlighting components turn ON and OFF 
  4. Verify the vehicle ON/OFF switch backlighting changes from LOW to HIGH while adjusting the backlighting from low to high with the dimmer switch.
    • If the vehicle ON/OFF switch backlighting does not change from LOW to HIGH 

      Refer to Vehicle ON/OFF Switch Backlighting Malfunction.

    • If the vehicle ON/OFF switch backlighting changes from LOW to HIGH 
  5. Verify the door lock switch backlighting changes from LOW to HIGH while adjusting the backlighting from low to high with the dimmer switch.
    • If the door lock switch backlighting does not change from LOW to HIGH 

      Refer to Switch Backlighting Malfunction.

    • If the door lock switch backlighting changes from LOW to HIGH 
  6. Verify the driver mode select switch backlighting changes from LOW to HIGH while adjusting the backlighting from low to high with the dimmer switch.
    • If the driver mode select switch backlighting does not change from LOW to HIGH 

      Refer to Switch Backlighting Malfunction.

    • If the driver mode select switch backlighting changes from LOW to HIGH 
  7. Park assist ON, verify the park assist switch amber LED backlighting changes from LOW to HIGH while adjusting the backlighting from low to high with the dimmer switch.
    • If the park assist switch amber LED backlighting does not change from LOW to HIGH 

      Refer to Park Assist Switch Amber LED Backlighting Malfunction.

    • If the park assist switch backlighting changes from LOW to HIGH 
  8. Verify the phrase PASSENGER AIR BAG is illuminated on the Passenger Air Bag Disable Indicator.
    • If the phrase PASSENGER AIR BAG is not illuminated 

      Refer to Passenger Air Bag Disable Indicator Backlighting Malfunction.

    • If the phrase PASSENGER AIR BAG is illuminated 
  9. All OK.
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