2012 Ford Fiesta S, Standard TransFACTORY OEM SERVICE PROCEDURE

Module Communications Network DTCS

COMMUNICATION NETWORK DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Source Action
U0001:00 High Speed Controller Area Network (HS-CAN) Communication Bus: no subtype information RFA 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0001:88 High Speed Controller Area Network (HS-CAN) Communication Bus ABS module
PSCM
PCM
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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0002:81 High Speed Controller Area Network (HS-CAN) Communication Bus Performance PCM 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0010:00 Medium Speed Controller Area Network (MS-CAN) Communication Bus: no subtype information RFA 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0010:88 Medium Speed Controller Area Network (MS-CAN) Communication Bus BCM
FCDIM
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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0028:00 Vehicle Communication Bus A TCM 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0028:08 Vehicle Communication Bus A: Bus Signal/Message Failures RCM 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0028:88 Vehicle Communication Bus A: Bus Off RCM 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0073:00 Control Module Communication Bus "A" Off TCM 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0074:88 Infotainment Controller Area Network (I-CAN) Communication Bus FCDIM 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 OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U3000:88 Control Module: Bus Off APIM The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
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  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.