Communications Network - Inspection And Verification

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DTC CHART - COMMUNICATIONS NETWORK - HYBRID

Inspection and Verification

1. Verify the customer concern.

2. Visually inspect for obvious signs of electrical damage.





3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

NOTE:Make sure to use the latest scan tool software release.
NOTE:The vehicle communication module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
4. If the cause is not visually evident, connect the scan tool to the DLC.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.
- See - Pinpoint Test 17: No Power To The Scan Tool.