Initial Inspection and Diagnostic Overview
Diagnostic Starting Point - Lighting SystemsBegin the system diagnosis with the [Diagnostic System Check - Vehicle Diagnostic
Information]. Diagnostic System Check - Vehicle Diagnostic Information
The Diagnostic System Check - Vehicle 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 (DTCs) and their status
The use of the Diagnostic System Check - Vehicle will identify the correct procedure for diagnosing the system and where the procedure is located.