DTC U0423: Invalid Data Received from Instrument Panel Cluster Control Module: Description

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

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 6.5 volts and there are no DTCs present inhibiting PSCM operation.

DTC U0423 (Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information) - This DTC sets if the PSCM receives a value of "not used" or "not available" in the trailer steering effort desired message, the trailer aid enabled message or the trailer angle offset message from the IPC.