Pinpoint Test AD: DTC U0101:87: Notes

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

DTC U0101:87 (Lost Communication With TCM: No Sub-Type Information) - sets continuous in the Headlamp Control Module (HCM) if data messages received from the Transmission Control Module (TCM) over the High Speed Controller Area Network (HS-CAN) are missing. For a complete list of all network messages, refer to PINPOINT TESTS .

This pinpoint test is intended to diagnose the following: