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Home >> Ford >> 2023 >> F-150 Lightning Pro >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> DTC Index (Automatic Transmission Cooling System Through Climate Control System DTCS) >> Auxiliary Brake System DTCS
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Auxiliary Brake System DTCS

DTC Description Action
C0040:08 Brake Pedal Switch 'A': Bus Signal/Message Failures GO to Pinpoint Test L
C0040:11 Brake Pedal Switch 'A': Circuit Short To Ground GO to Pinpoint Test L
C0040:16 Brake Pedal Switch 'A': Circuit Voltage Below Threshold GO to Pinpoint Test L
C0040:17 Brake Pedal Switch 'A': Circuit Voltage Above Threshold GO to Pinpoint Test L
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