Circuit/System Verification

WARNING: This page is about a different car, the 2012 Buick Verano. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
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 in Circuit/System Testing .
- If the parameter changes
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 in Circuit/System Testing .
- If the backlighting components turn ON and OFF
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 in Circuit/System Testing .
- If the phrase PASSENGER AIR BAG is illuminated
All OK.