Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Seats

Always begin the diagnosis by reviewing the system Description and Operation. Reviewing the Description and Operation will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation will also help you determine if the condition described by the customer is normal operation.

Begin diagnosis with the [Diagnostic System Check - Vehicle Diagnostic Information].Diagnostic System Check - Vehicle Diagnostic Information

The Diagnostic System Check will provide the following information:
^ The identification of the control modules which command the system
^ The ability of the control modules to communicate through the serial data circuit
^ The identification of any stored diagnostic trouble codes and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.