Important: The following steps must be completed before using the symptom tables:
Perform 
Diagnostic System Check - Body Rear End 
 before using the Symptom Tables in order to verify that all  of the following are  true:
|     •  | The control modules can communicate via the serial data link. | 
 
Visual/Physical Inspection
|     •  | Inspect for aftermarket devices which could affect  operation  of the rear compartment lid release system, and/or operation of the rear window     and/or operation of the fuel filler door release system.      Refer to 
Checking Aftermarket Accessories 
  in Wiring Systems. | 
 
|     •  | Inspect the easily accessible or visible system components for  obvious damage or conditions which could cause the symptom. | 
 
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent  conditions. Refer to 
Testing for Intermittent Conditions and Poor Connections 
 in Wiring  Systems.
Symptom List :
Refer to a symptom diagnostic procedure from the following list in order  to diagnose the symptom: