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Home >> Chevrolet >> 2020 >> Camaro SS, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Lighting System - Diagnostic Information And Procedures (B3950-C0297) And Symptoms >> Diagnostic Information and Procedures >> Interior Backlighting Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition 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 Circuit/System Testing - Dimmer Switch Malfunction.

    • Go to next step: If the parameter changes 
  3. Verify the switch indicators for the components listed below dim from LOW to HIGH while operating the dimmer switch from LOW to HIGH.
    • Driver Door Lock Switch Red Indicator
    • Heated Steering Wheel Switch Amber Indicator
    • Passenger Door Lock Switch Red Indicator
    • If the switch indicators do not dim from LOW to HIGH 

      Refer to Circuit/System Testing - Switch Indicator LED Backlighting Malfunction.

    • Go to next step: If the switch indicators dim from LOW to HIGH 
  4. Verify all backlighting components turn ON and OFF while commanding the LED Backlight Dimming ON and OFF with a scan tool.
    • If all backlighting components do not turn ON and OFF 

      Refer to Circuit/System Testing - Interior Backlighting Malfunction.

    • Go to next step: If all backlighting components turn ON and OFF 
  5. 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 Circuit/System Testing - Passenger Air Bag Disable Indicator Backlighting Malfunction.

    • Go to next step: If the phrase PASSENGER AIR BAG is illuminated 
  6. All OK.
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