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Home >> Chevrolet >> 2012 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Lighting System) >> Diagnostic Information and Procedures >> Interior Backlighting Malfunction >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, observe the scan tool Indicator Dimming Duty cycle Command parameter while operating the dimmer switch from high to low. The parameter should change between 5-50% when the backlight switch is moved up and down.
    • If the reading does not change, refer to the Dimmer Switch Circuit Test below.
  2. Observe the interior backlighting components while commanding the LED Backlight Dimming ON and OFF with the scan tool. The backlighting should turn ON and OFF when changing between the commanded states.
    • If the backlighting does not change between the commanded states, refer to the Interior Backlighting Circuit Test below.
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