Silverado 3500 4WD V8-8.1L VIN G (2006)
Heated Glass Element: Initial Inspection and Diagnostic Overview
DIAGNOSTIC STARTING POINT
For the inside rearview mirror with the automatic day-night feature, 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 Symptoms -
Heated Glass Element in order to identify the correct procedure for diagnosing the system and where the procedure is located. See: Symptom Related
Diagnostic Procedures/A Symptoms - Heated Glass Element
For the rear window defogger, begin the diagnosis with the Diagnostic System Check - Vehicle. The Diagnostic System Check will provide the following
information:
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The identification of the control modules which command the system
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The ability of the control modules to communicate through the serial data circuit
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The identification of any stored diagnostic trouble codes (DTCs) and their status See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
