Normal Operation

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

The Driver Seat Module (DSM) and the Instrument Cluster (IC) communicate using the Medium Speed Controller Area Network (MS-CAN). Messages are exchanged between the modules on the MS-CAN for the purposes of determining what functions are being carried out.

DTC U0155 (Lost Communication With Instrument Panel Cluster (IC) Control Module) - set by the Driver Seat Module (DSM) whenever it has the ignition status message present and the DSM has lost communication to the IC for 15 seconds or longer and the DSM voltage is between 10 and 15 volts.

This pinpoint test is intended to diagnose the following:

Module communication
DSM
IC