Inspection and Verification
Instrumentation and Warning Chimes
Inspection and Verification
1. 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. NOTE: Make sure to use the latest scan tool software release.
If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
5. NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
If the scan tool does not communicate with the VCM:
- Check the VCM connection to the vehicle.
- Check the scan tool connection to the VCM.
- Refer to Information Bus, No Power To The Scan Tool, to diagnose no power to the scan tool.
6. If the scan tool does not communicate with the vehicle:
- Verify the ignition key is in the ON position.
- Verify the scan tool operation with a known good vehicle.
- Refer to Information Bus to diagnose no response from the PCM.
7. Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to Information Bus.
- If the network test passes, retrieve and record the continuous memory DTCs.
8. Clear the continuous DTCs and carry out the self-test diagnostics for the IC, GEM, PCM, ABS module and Restraints Control Module (RCM).
9. If the DTCs retrieved are related to the concern, go to DTC Charts. For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Chart in Body Control Systems. Diagnostic Trouble Code Tests and Associated Procedures Testing and Inspection
10. If no DTCs related to the concern are retrieved, GO to Symptom Chart - Instrument Cluster (IC) or GO to Symptom Chart - Warning Chimes. Instrumentation and Warning Chimes
Instrument Cluster (IC) Dealer Test Mode
NOTE: The table below uses XXX's to represent a numeric or alpha-numeric value. The value may display the same amount of characters represented by the XXX's or there may be more/less depending on the type of display. For example: F XXX may display F 125.
To enter the IC dealer test mode, press and hold the trip odometer reset button and turn the ignition switch to the RUN position. Release the trip odometer reset button when tESt is displayed in the integrated display area. This takes between 5 and 8 seconds (the IC enters the gauge sweep test). Press the trip odometer reset button to move through the tests. To exit the IC dealer test mode, hold the trip odometer reset button for greater than 3 seconds or turn the ignition switch to the OFF position.
Instrument Cluster (IC) Dealer Test Mode
