U0073 (PCM) - Control Module Communication Bus A Off
DTC DESCRIPTION U0073 (PCM) - CONTROL MODULE COMMUNICATION BUS A OFF
| Description: This DTC sets when the controller area network (CAN) between the PCM and data link connector (DLC) is open. | |||
Possible Causes:
|
|||
| Diagnostic Aids: The presence of this DTC may indicate that the vehicle is operating in derate mode. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center. Network DTC concerns occur during module-to-module communication. For additional description and operation of the vehicle communication network, refer to the appropriate Module Communications Network article. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST AE . | ||