If The IDS Scan Tool Does Not Communicate With The VCM
- Check the VCM power; examine the connection to the vehicle.
- The VCM LED illumination prove-out confirms power and ground from the DLC are provided to the VCM.
- Recommended Practice: REFER to MODULE COMMUNICATIONS NETWORK , No Power to the Scan Tool, to diagnose no power to the VCM.
- Check the scan tool connection to the VCM.
- Follow scan tool instructions to retry.