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z There are no DTCs set. z The control module(s) can communicate via the serial data link. 2. Review the system operation in order to familiarize yourself with the system functions. Refer to Sunroof Description and Operation . Visual/Physical Inspection z Inspect for aftermarket devices which could affect the operation of the Power Sunroof system. Refer to z Inspect the easily accessible or visible system components for obvious damage or conditions which could Intermittent Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Symptom List Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom: z Power Sunroof Inoperative z Retained Accessory Power (RAP) On After Timeout in Retained Accessory Power, if the power POWER SUNROOF INOPERATIVE Test Description The number below refer to the step number on the diagnostic table. 9: The testing of the ground circuit is to assure a good path to ground. An open at the grounding lug will Power Sunroof Inoperative Step Action Value (s) Yes No Schematic Reference:Power Sunroof Schematics 1 Did you perform the Power Sunroof - Go to Step 2 Go to Diagnostic System Check - Power Sunroof Operate the power sunroof system. Go to Testing for Intermittent
2004 Hummer H2 2004 ACCESSORIES & EQUIPMENT Roof - Hummer H2
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