Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit/System Description
To deter theft, the radio learns and stores the vehicle VIN. If the radio is removed from the vehicle and installed into another vehicle, the radio performs a VIN check. If the VIN stored in the radio and the VIN being reported over serial data do not match or no VIN is received, the radio will go into a theft lock state and be inoperative. The radio will also display LOC, LOCKED, or CODE.
Reference Information
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Description and Operation
Radio/Audio System Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Ignition ON, perform radio setup procedure. Refer to Radio Programming and Setup. Verify the radio operates normally and no messages are displyed on the radio.
| ⇒ | If the message continues to display on the radio, replace the radio. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for radio replacement, programming, and setup
