DTC U0001 : High Speed CAN Communications Bus: Description

The PSCM monitors 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 U0001:08 (High Speed Can Communication Bus: Bus Signal/Message Failures) - This DTC sets if the CAN messages received by the PSCM do not match the message list stored in the PSCM.
• DTC U0001:88 (High Speed Can Communication Bus: Bus Off) - This DTC sets if the PSCM is unable to communicate with any other modules on the HS-CAN network for greater than 320 milliseconds.