Instrument Cluster and Panel Illumination
Inspection and Verification1. Verify the customer concern
2. Visually inspect for obvious signs of mechanical or electrical damage Visual Inspection Chart
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, connect the WDS or equivalent Tester to the data link connector and select the vehicle to be tested from the WDS or equivalent Tester menu. If the WDS or equivalent Tester 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 cause is not visually evident, connect the WDS or equivalent Tester to the data link connector and select the vehicle to be tested from the WDS or equivalent Tester menu. If the WDS or equivalent Tester 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.
6. Carry out the WDS or equivalent tester data link test. If the WDS or equivalent tester responds with:
- CAN or ISO circuit fault; all electronic control units no response/not equipped, see COMMUNICATIONS NETWORK.
- No response/not equipped for instrument cluster, see PINPOINT TEST 1: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER.
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the instrument cluster.
7. If the DTCs retrieved are related to the concern, go to the Instrument Panel Diagnostic Trouble Code (DTC) Index to continue diagnostics.
8. If no DTCs related to the concern are retrieved, see SYMPTOM TROUBLESHOOTING CHART ILLUMINATION to continue diagnostics.
NOTE: For a complete master list of DTCs, see COMMUNICATIONS NETWORK.