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

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The IPMA 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 IPMA fails. For a list of the messages sent to the PSCM from the IPMA, refer to the Network Message List in Description and Operation in Power Steering article. If messages are missing for more than the allotted time, DTC U023A:00 is set.