Test Description

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

2. Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
4. DTCs that may be stored in the Seat Adjuster Memory Module will be retrieved. These DTCs must be addressed prior to proceeding to the symptoms list.
5. The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed

Fig 1: Diagnostic System Check - Power Seat Systems

Courtesy of GENERAL MOTORS CORP.

Fig 2: Scan Tool Data List (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Scan Tool Data List (2 Of 2)

Courtesy of GENERAL MOTORS CORP.