GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Avalanche - 4WD 🢒 Body Systems 🢒 Adjustable Pedals 🢒 Symptoms - Roof

Important: Complete the following procedures before using the symptom tables.

  1. Perform the Diagnostic System Check - Vehicle in order to verify that all of the following conditions are true:
    2. • No DTCs are set.
    • The control modules can communicate via the serial data link.
  2. Review the system description and operation in order to learn the system functions. Refer to Sunroof Description and Operation .

Visual/Physical Inspection
    • Inspect for aftermarket devices which could affect the operation of the power sunroof system. Refer to Checking Aftermarket Accessories.
    • Inspect the accessible system components for obvious damage or for conditions which can cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

    •  Power Sunroof Malfunction
    •  Retained Accessory Power (RAP) Description and Operation, if the power sunroof should operate longer than the retained accessory power (RAP) time-out.