Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify the scan tool Door Ajar Sw. parameter changes between Active and Inactive while opening and closing each vehicle door.
- If the parameter does not change
  Refer to Door Ajar Indicator Malfunction .
- If the parameter changes
Verify the scan tool Interior/Courtesy Lighting Master Switch parameter changes between INACTIVE and ON/OFF while switching the dome lamp switch from the ON/OFF positions.
- If the parameter does not change
  Refer to Dome Lamp Switch Malfunction.
- If the parameter changes
Verify the scan tool Interior/Courtesy Lighting Master Switch parameter changes between INACTIVE and DOOR while switching the dome lamp cancel switch from the ON/OFF positions.
- If the parameter does not change
  Refer to Dome Lamp Switch Malfunction.
- If the parameter changes
Verify all dome/courtesy lamps controlled by the dome/courtesy lamps control circuit at terminal 1 X7 turn ON and OFF while commanding the Courtesy Lamps ON and OFF with a scan tool.
- If the dome/courtesy lamps do not turn ON and OFF
  Refer to Dome/Courtesy Lamps Malfunction.
- If the dome/courtesy lamps turn ON and OFF
Verify the dome lamp cancel switch amber indicator illuminates ON and OFF while activating the dome lamp cancel switch between the ON and OFF positions.
- If the dome lamp cancel switch amber indicator does not illuminate
  Refer to Dome Lamp Cancel Switch Indicator Malfunction.
- If the dome lamp cancel switch amber indicator illuminates
All OK.