Initial Inspection - Instrument Cluster
1. Verify the customer concern by operating the instrument cluster to duplicate the condition by observing the indicators and gauges to determine if they are operating correctly with the ignition switch:^ in RUN, and the engine off.
^ in START, before the ignition switch is released.
^ in RUN, and the engine running.
2. Visually inspect for obvious signs of mechanical and electrical damage.
VISUAL INSPECTION CHART
3. If the inspection reveals any obvious concern(s) that can be readily identified, repair as necessary.
4. If the concern remains after inspection, connect the scan tool to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle:
^ check that the program card is correctly installed.
^ check the connections to the vehicle.
^ check the ignition switch position.
5. If the scan tool still does not communicate with the vehicle, refer to the scan tool manual.
6. Carry out the DATA LINK DIAGNOSTIC TEST. If the scan tool responds with:
^ CKT9I4, CKT9l5 or CKT7O = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network (Information Bus)
^ NO RESP/NOT EQUIP for Virtual Image Electronic Instrument Cluster (VIC), go to Pinpoint Test B. Test B: No Communication With the Virtual Image Instrument Cluster
^ NO RESP/NOT EQUIP for Lighting Control Module (LCM), go to Pinpoint Test C. Test C: No Communication With the Module - Unable to Perform On-Demand Self-on Lighting Control Module
^ SYSTEM PASSED, retrieve and record the Continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the VIC and LCM.
7. If the DTCs retrieved are related to the concern, go to the LCM Diagnostic Trouble Code (DTC) Index or the VIC Diagnostic Trouble Code (DTC) Index to continue diagnostics. Trouble Code Diagnostic Charts - Instrument Cluster
8. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics. Diagnosis By Symptom - Instrument Cluster