For 1990-2009 cars only
Diagnostic Starting Point - Doors for Chevrolet Caprice WM 2008
Begin the diagnosis by reviewing the system Description and Operation. Reviewing the Description and Operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. Refer to Diagnostic System Check - Vehicle , in order to identify the correct procedure for diagnosing the system and where the procedure is located.
The Diagnostic System Check will provide the following information:
| • | The identification of the control module which command the system |
| • | The ability of the control module to communicate through the serial data circuit |
| • | The identification of any stored diagnostic trouble codes (DTCs) and their status |
