U0073 - Control Module Communication Bus A Off
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
U0073 - CONTROL MODULE COMMUNICATION BUS A OFF
| Description: This DTC is set when the controller area network (CAN) between the powertrain control module (PCM) and data link connector (DLC) is open. | |||
Possible Causes:
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| Diagnostic Aids: 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 . | ||