Normal Operation
WARNING: This page is about a different car, the 2013 Ford F-150. 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 Body Control Module (BCM) if data messages received (vehicle speed) from the PCM are missing for more than 1 second.
This pinpoint test is intended to diagnose the following:
- Communication network concern
- PCM
- BCM