Normal Operation
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- DTC U0163 (Lost Communication With Navigation Control Module [NAV]) - sets in continuous memory in the Instrument Cluster (IC) if data messages received from the Audio Control Module (ACM) (navigation only) over the Medium Speed Controller Area Network (MS-CAN) are missing. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK .
This pinpoint test is intended to diagnose the following:
- ACM
- IC