GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Body Rear End Schematics

1

Perform the Diagnostic System Check - Body Control System. Refer to Diagnostic System Check - Body Control System in Body Control System.

Did you perform the Diagnostic System Check - Body Control System?

Go to Step 2

Go to Diagnostic System Check - Body Control System in Body Control System

2

Did you retrieve any DTCs other than 12, 25/35, 55 and configuration numbers?

Go to Diagnostic Trouble Code (DTC) List in Body Control System

Go to Symptoms - Body Rear End