Inspection and Verification
Instrumentation, Message Center 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 Module Communications Network Testing and Inspection, 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 Module Communications Network Testing and Inspection, The PCM Does Not Respond To The Scan Tool, 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 Module Communications Network Testing and Inspection.
- 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 IPC, PCM, Restraints Control Module (RCM), ABS module, Trailer Brake Control (TBC) module, Parking Aid Module (PAM) and the BCM.
9. If the DTCs retrieved are related to the concern, go to DTC Charts Instrumentation, Message Center and Warning Chimes.
10. If no DTCs related to the concern are retrieved, GO to Symptom Chart - Instrument Panel Cluster (IPC), GO to Symptom Chart - Information And Message Center or GO to Symptom Chart - Warning Chimes. Instrumentation, Message Center and Warning Chimes
Instrument Panel Cluster (IPC) Dealer Test Mode - Base IPC
To enter the IPC dealer test mode, press and hold the message center RESET button. Place the ignition in RUN and continue to hold the RESET button until the display indicates ENGINEERING TEST MODE, usually within 3 to 5 seconds. Press the RESET button once to advance through each stage of the self-test.
To exit the IPC dealer test mode, press and hold the RESET button for more than 3 seconds or simply turn the ignition off.
NOTE: The displays listed in the table below use xxx's to represent a numeric or alpha-numeric value or a text display. 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, VEHICLE SPEED xxx.x mph may display VEHICLE SPEED 45 mph.
Instrument Panel Cluster (IPC) Dealer Test Mode - Optional IPC
To enter the IPC dealer test mode, press and hold the message center OK button. Place the ignition in RUN and continue to hold the OK button until the display indicates ENGINEERING TEST MODE, usually within 3 to 5 seconds. Press the OK button once to advance through each stage of the self-test.
To exit the IPC dealer test mode, press and hold the OK button for more than 3 seconds or simply turn the ignition off.
NOTE: The displays listed in the table below use xxx's to represent a numeric or alpha-numeric value or a text display. 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, VEHICLE SPEED xxx.x mph may display VEHICLE SPEED 45 mph.
