Filed Under (Chevrolet) by admin on 09-11-2010
Refer to System Wiring Diagrams . COMPONENT LOCATOR THEFT DETERRENT SYSTEM COMPONENT VIEWS Callout 1 2 3 THEFT DETERRENT SYSTEM CONNECTOR END VIEWS Passlock Sensor Terminal Identification Component Name Passlock(tm) Sensor Connector Ignition Switch Connectors Ignition Switch DIAGNOSTIC STARTING POINT – THEFT DETERRENT Begin the system diagnosis with Diagnostic System Check – Theft Deterrent . The Diagnostic System Check will provide the following information: The identification of the control module(s) which command the system. The ability of the control module(s) 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 will identify the correct procedure for diagnosing the system and where the procedure is located. DIAGNOSTIC SYSTEM CHECK – THEFT DETERRENT Test Description The number(s) below refer to the step number(s) on the diagnostic table. 2: Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition. 5: The presence of DTCs which begin with “U” indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed. 6: The listed DTCs are internal module malfunctions and should be corrected before attempting any other diagnostics. 7: The listed DTCs are battery voltage related malfunctions and should be corrected before attempting any other diagnostics.