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.

DTC U0155 (Lost Communication With Instrument Panel Cluster (IC ) Control Module) - set by the Smart Junction Box (SJB) whenever it receives invalid data from the Instrument Panel Cluster (IPC).

This pinpoint test is intended to diagnose the following:

Module communication
SJB
IPC