Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2014 Ford Mustang Base, 2D Convertible, Standard TransFACTORY OEM SERVICE PROCEDURE
Module Communications Network DTCS
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| U0001:88 | High Speed CAN Communication Bus: Bus Off | The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information. |
| U0028:08 | Vehicle Communication Bus A: Bus Signal/Message Failure | The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information. |
| U0028:88 | Vehicle Communication Bus A: Bus off | The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information. |
| U0073 | Control Module Communication Bus Off | The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information. |
| U2472 | Unexpected Ignition State | This DTC is only set when an on-demand self-test is run with the test entry conditions not correct. CLEAR the DTC. REPEAT the self-test with the ignition in the ON position and the vehicle stationary. |
| U2473 | Unexpected Vehicle Speed | This DTC is only set when an on-demand self-test is run with the test entry conditions not correct. CLEAR the DTC. REPEAT the self-test with the ignition in the ON position and the vehicle stationary. |
| - | All network DTCs referenced to this article from another article | GO to SYMPTOM CHART . |
| - | All other DTCs | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.