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Home >> Ford Truck >> 2007 >> F 550 4WD Super Duty V8-6.0L DSL Turbo VIN P >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Brakes and Traction Control >> Trailer Brake Control Module >> Testing and Inspection >> Pinpoint Tests >> Test A: DTC B1863 - TBC Ground Open Circuit

Test A: DTC B1863 - TBC Ground Open Circuit

Pinpoint Test A: DTC B1863 - TBC Ground Open Circuit

NOTE: Carry out all pinpoint tests without a trailer connected to the vehicle.

Refer to Vehicle/Diagram, Trailer/Camper Adapter for schematic and connector information.

Normal Operation
The TBC module receives fused battery power from central junction box (CJB) fuses 101 (30A) and 28 (10A) along circuits 50 (RD) and 298 (VT/OG), respectively. The ground path for the TBC is along circuit 206 (WH).

Possible Causes
^ Circuit open
^ TBC module

PINPOINT TEST A: DTC B1863 - TBC GROUND OPEN CIRCUIT

CAUTION: Use the flex probe kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

A1:




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