Initial Inspection and Diagnostic Overview

Inspection and Verification

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle.
1 Verify the customer concern.
2 Confirm which, if any, warning lights and/or messages were displayed on the instrument cluster. For a list of messages, refer to this product Information and Message Center. For additional information, refer to Information and Message Center Description
3 Visually inspect for obvious electrical faults.





4 If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
5 Use the approved diagnostic system or a scan tool to retrieve any DTCs before moving onto the DTC index.
- Make sure that all DTCs are cleared following rectification.

DTC index
For a complete list of all diagnostic trouble codes that could be logged on this vehicle, please refer to Vehicle / A L L Diagnostic Trouble Codes ( DTC ). For additional information, refer to Diagnostic Trouble Code (DTC) Index - DTC: Instrument Cluster (IPC) Diagnostic Trouble Code Descriptions