Normal Operation

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

DTC U0100:00 (Lost Communication With ECM/PCM "A": No Sub-Type Information) - sets in the Instrument Panel Cluster (IPC) if data messages received from the PCM over the High Speed Controller Area Network (HS-CAN) are missing for greater than 5 seconds. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article.

NOTE: Once the IPC sets DTC U0100:00, multiple gauges or indicators are likely to be inoperative in the IPC . Other modules that require data from the IPC all set communication DTCs and may also exhibit system function concerns.

This pinpoint test is intended to diagnose the following: