Visual Inspection Chart
VISUAL INSPECTION CHART
| Mechanical | Electrical |
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- 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 release software
If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
- 5.NOTE: The Vehicle Communication Module (VCM) 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.
- 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 to diagnose no response from the PCM.
- 7. Carry out the network test.
- If the scan tool responds with no communication with one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- 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 BCM .
- 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 MULTIFUNCTION ELECTRONIC MODULES . If no DTCs related to the concern are retrieved, go to SYMPTOM CHART .