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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Lighting System) >> Diagnostic Information and Procedures >> Interior Backlighting Malfunction >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

WARNING: This page is about a different car, the 2010 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, command the Parking Lamps ON and OFF with a scan tool. The park lamps should turn ON and OFF when changing between the commanded states.
  2. Observe the scan tool LED Backlight Dimming Command parameter while operating the dimmer switch from high to low. The parameters should change from a high percent to a low percent as the switch is activated.
    • If the parameters do not change, refer to Panel Dimmer Switch Malfunction.
  3. Observe the function for the backlights while commanding the LED Dimming Duty Cycle Command ON and OFF with a scan tool. All backlights should turn ON and OFF while changing between the commanded states.
    • If a backlight does not turn ON or OFF, refer to Interior Backlighting Malfunction.
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