DTC U023A: Lost Communication with Image Processing Module A: Description

WARNING: This page is about a different car, the 2014 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

The image processing module is integrated into the interior rear view mirror.

The PSCM will monitor the HS-CAN bus when the ignition has been on for more than 5 seconds, when the voltage to the PSCM is greater than 9 volts and when there are no DTCs present that are inhibiting PSCM operation.

DTC U023A:00 (Lost Communication with Image Processing Module A (IPM-A): No Sub Type Information) - This DTC sets when communication between the PSCM and the IPM-A fails. The IPM-A sends the various lane assist messages to the PSCM over the HS-CAN bus. If one or more of these messages is missing for more than 1 second the PSCM will set U023A:00.