DTC U0140: Lost Communication With Body Control Module: Description

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The PSCM monitors the HS-CAN messages when the voltage to the PSCM is greater than 9 volts and there are no DTCs present inhibiting PSCM operation.

DTC U0140:00 (Lost Communication with the Body Control Module: No Sub Type Information) - This DTC sets when communication between the PSCM and the BCM fails. DTC U0140:00 can also set due to a circuit fault in the HS-CAN, the PSCM wiring harness or a BCM concern.