Normal Operation

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.

Several modules receive network messages from the Instrument Cluster (IC) via the Medium Speed Controller Area Network (MSCAN). The following information is included in the messages:

Transmission gear selected
Vehicle speed
Parking aid disable switch status

All modules receiving a particular message should exhibit a symptom if the message is missing.

DTC U0155 (Lost Communication With Instrument Panel Cluster (IPC ) Control Panel) - set by the Parking Aid Module (PAM) when network messages are missing from the IC for greater than 5 seconds with the ignition in RUN.

This pinpoint test is intended to diagnose the following:

Module communication
PAM
IPC