Pinpoint Test G: DTC U0100:00: Notes

WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. 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 continuous memory if data messages received from the PCM over the High Speed Controller Area Network (HS-CAN) to the Cruise-Control Module (C-CM) are missing for more than 5 seconds.

This pinpoint test is intended to diagnose the following:

PCM
C-CM