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.
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HOMESERVICE MANUALSFORD2014E-150 BASE, VAN CARGO, 4.6L ENG VIN WREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXAUXILIARY BRAKE SYSTEM DTCSTRAILER BRAKE CONTROL (TBC) MODULE
2014 Ford E-150 Base, Van Cargo, 4.6L Eng VIN W
Trailer Brake Control (TBC) Module
2014 Ford E-150 Base, Van Cargo, 4.6L Eng VIN WSECTION Trailer Brake Control (TBC) Module
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| B1317 | Battery Voltage High | GO to PINPOINT TEST B . |
| B1318 | Battery Voltage Low | GO to PINPOINT TEST B . |
| B1342 | Electronic Control Unit (ECU) is Faulted | REPAIR all other DTCs. CLEAR the DTCs. TEST the system for normal operation. If the DTC returns, INSTALL a new TBC module. REFER to TRAILER BRAKE CONTROL (TBC) MODULE . |
| B1863 | TBC Ground Open Circuit | GO to PINPOINT TEST A . |
| C279A | Invalid Brake Pressure Transducer Pressure Input Received | On vehicles equipped with both a TorqShift transmission and Roll Stability Control (RSC®), the TBC
receives brake fluid pressure information from 2 sources, the PCM and the ABS module, over the High Speed Controller Area Network (HS-CAN) bus. If the TBC module does not receive brake fluid pressure input from either of the 2 sources, the module tests the bus for 8 seconds looking for brake fluid pressure input. If pressure input is not found, DTC C279A sets. REFER to DTC U0401 and U0416 for the appropriate diagnostic action to take. |
| C2806 | Trailer Brakes Wiring Circuit Short to Voltage | GO to PINPOINT TEST C . |
| C2807 | Trailer Brakes Wiring Circuit Short to Ground | GO to PINPOINT TEST C . |
| U0115 | Lost Communication With ECM /PCM | REFER to MODULE COMMUNICATIONS NETWORK to diagnose the lost communication with the ECM /PCM. |
| U0121 | Lost Communication With ABS Control Module | REFER to MODULE COMMUNICATIONS NETWORK to diagnose the lost communication with the ABS module. |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | REFER to MODULE COMMUNICATIONS NETWORK to diagnose the lost communication with the IPC control module. |
| U0401 | Invalid Data Received from ECM/PCM | RETRIEVE and FOLLOW PCM DTCs. For DTC P1561, REFER to the PCM DTC CHART . For all other PCM DTCs, REFER to the ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) . |
| U0416 | Invalid Data Received From Vehicle Dynamics Control Module | RETRIEVE and FOLLOW ABS module DTCs. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL . |
| U2202 | Invalid Configuration Data Received | VERIFY Instrument Cluster (IC) configuration using as-built data. REFER to MODULE CONFIGURATION . CONFIGURE or INSTALL a new IC as necessary. |
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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.