For 1990-2009 cars

Note: 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:

• | There are no DTCs 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 may 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 of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.

### Symptom List

Refer to Power Sunroof Malfunction.