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Home >> GMC >> 2011 >> Acadia SL, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting System >> Diagnostic Information and Procedures >> Courtesy Lamps Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, observe the appropriate scan tool Door Open Sw. parameter while opening and closing the driver and passenger doors. The parameter should change between Open and Closed.
  2. Ignition ON, observe the appropriate scan tool Rear Door Ajar Sw. parameter while opening and closing the rear vehicle doors. The parameter should change between Door Ajar and Door Closed.
  3. Observe the scan tool Rear Closure Ajar Switch parameter while opening and closing the rear liftgate. The parameter should change between Active and Inactive.
  4. Cycle the dome lamp switch while observing the scan tool Ctsy. Lamp Actv. Reason parameter. The parameter should change between Manual and Manual Defeat.
    • If the parameter does not change, refer to Courtesy Lamp Switch Malfunction.
  5. Command the Courtesy Lamps ON and OFF with a scan tool. The courtesy lamps should turn ON and OFF when changing between the commanded states.
    • If the courtesy lamps do not turn ON and OFF when changing between the commanded states, refer to Courtesy Lamp Malfunction.
  6. Command the Courtesy Lamps ON and OFF with a scan tool. The liftgate courtesy lamps should turn ON and OFF while changing between the commanded states.
    • If the reading lamps do not turn ON and OFF when changing between the commanded states, refer to Liftgate Courtesy Lamp Malfunction.
  7. Turn the reading lamps ON and OFF by using the reading lamp switches. The reading lamps should turn ON and OFF while changing between the selected states.
    • If the cargo lamps do not turn ON and OFF when changing between the commanded states, refer to Reading Lamp Malfunction.
  8. Turn the sunshade lamp ON and OFF by using the sunshade lamp switch. The sunshade lamp should turn ON and OFF while changing between the selected states.
    • If the sunshade lamp does not turn ON and OFF when changing between the selected states, refer to Sunshade Illumination Malfunction.