Auxiliary Brake System DTCS
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
| DTC | Description | Action |
|---|---|---|
| B148A:11 | Trailer Brake Output: Circuit Short To Ground | GO to Pinpoint Test C |
| B148A:12 | Trailer Brake Output: Circuit Short To Battery | GO to Pinpoint Test C |
| B148B:2A | Trailer Brake Manual Slider: Stuck in Range | GO to Pinpoint Test H |
| B148B:49 | Trailer Brake Manual Slider: Internal Electronic Failure | GO to Pinpoint Test H |
| B148C:2A | Trailer Brake Gain Button: Stuck in Range | GO to Pinpoint Test H |
| U064D:08 | Lost Communication with Trailer Brake Control Switch: Bus Signal/Message Failures | GO to Pinpoint Test H |
| U3000:12 | Control Module: Circuit Short To Battery | GO to Pinpoint Test C |
| U3000:1C | Control Module: Circuit Voltage Out Of Range | GO to Pinpoint Test C |
| U3000:1D | Control Module: Circuit Current Out Of Range | GO to Pinpoint Test C |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test I |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test J |
| U3008:13 | Control Module Ground "A": Circuit Open | GO to Pinpoint Test K |