Impala V6-3.5L VIN N (2006)
Body Control Module: Initial Inspection and Diagnostic Overview
DIAGNOSTIC STARTING POINT - COMPUTER/INTEGRATING SYSTEMS
Begin the system diagnosis with Diagnostic System Check - Vehicle. The Diagnostic System Check - Vehicle will provide the following information:
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The identification of the control modules which are not communicating.
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The identification of any stored diagnostic trouble codes (DTCs) and their status. See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures
The use of the Diagnostic System Check - Vehicle will identify the correct procedures to begin vehicle diagnosis. These must be performed before
system DTC or symptom diagnosis.
