Inspection and Verification: Notes
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Accessory drive belt
- Brake fluid level
- Correct tire size
- Courtesy lamps
- Engine coolant level
- Engine oil level
- Fuel tank
- Fuel evaporative system
- Tire pressure
- Body Control Module (BCM) fuse(s):
- 11 (10A)
- 32 (15A)
- Wiring, terminals or connectors
- Auto-dimming interior mirror
- Message center switch (part of the LH steering wheel switch)
- Instrument Panel Cluster (IPC)
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
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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).
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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 , No Power To The Scan Tool, to diagnose no power to the scan tool.
- 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 , The PCM Does Not Respond To The Scan Tool, to diagnose no response from the PCM.
- Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- If the network test passes, retrieve and record the continuous memory DTCs.
- 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 .
- If the DTCs retrieved are related to the concern, go to DTC CHARTS .
- 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 .