DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module: Description

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The PSCM monitors the HS-CAN messages when the ignition has been on for more than 5 seconds, the voltage to the PSCM is greater than 10 volts and there are no DTCs present inhibiting PSCM operation. For a list of the messages sent to the PSCM from the IPC, refer to the Network Message List in Description and Operation in the Power Steering article.

DTC U0155:00 (Lost Communication with Instrument Panel Cluster (IPC) Control Module: No Sub Type Information) - This DTC is set when communication between the PSCM and the IPC module fails.