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

The IPM-A is integrated into the interior rear view mirror. 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 9 volts and there are no DTCs present 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. If one or more of these messages is missing for more than 1 second the PSCM sets DTC U023A:00.