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1994 Ford Bronco/F-Series Power Distribution Wiring Diagram - Fuel Pump, WABS
Reference · 1992-1996 BroncoAll 411 wiring diagrams
Power distribution wiring diagram showing the fuel pump relay, mass air flow sensor, ABS and transmission engine-control circuits.
Part of 1992-1996 Ford Bronco Wiring Diagrams
This document is page 13-6 ("Power Distribution, Gasoline") from a Ford factory wiring diagram set, labeled "94" and "GASOLINE." It shows power distribution from the engine compartment fuse box for gasoline engines. A 30A fuse feeds the anti-lock brake circuit via wire 532 (O/Y) and 534 (Y/LG) through the 4 WABS Relay #2 (noted as Bronco only), which powers the 4 WABS Control Module (wire 539 PK/LB via connector C119) and the 4 WABS Pump Motor (wire 533 T/R via C122). A 20A fuse feeds wire 37 (Y) to the Fuel Pump Relay, whose output on circuit 361 (R) branches through splices S136 and S124 to Engine Controls (pages 23-1, 24-1, 25-1, 26-1), the Mass Air Flow (MAF) sensor via C130 (5.0L only), the E4OD transmission via C110/C1048 (wire 912 W/R), the 4R70W transmission via C1049, and the Powertrain Control Module (PCM) at connector C185 pins 57. Wire 926 (LB/O) connects the PCM to the VIP Data Link Connector (C198), and wire 238 (DG/Y) runs through S139, C202, and C271 to the Inertia Fuel Shutoff (page 49-2). Wire colors, circuit numbers, connector IDs, and cross-reference page numbers are given throughout.
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Frequently asked questions
- What size fuse feeds the fuel pump relay in this diagram?
- A 20A fuse in the engine compartment fuse box feeds wire 37 (Y) to the fuel pump relay (see page 13-12 for the fuse box).
- What wire color and circuit is the fuel pump relay output?
- Circuit 361, red (R), which branches to the engine controls, MAF sensor (5.0L only), E4OD and 4R70W transmission connectors, and the PCM (pins 57 at C185).
- Which relay is Bronco-only on this page?
- The 4 WABS Relay #2, fed by a 30A fuse through wires 532 O/Y and 534 Y/LG, is noted as '(BRONCO ONLY)'.
- How does the inertia fuel shutoff switch connect in this circuit?
- Via circuit 238 DG/Y from the fuel pump relay through splice S139 and connectors C202 and C271 to the inertia fuel shutoff (page 49-2).
- What connector links the PCM to the diagnostic connector?
- Wire 926 LB/O runs from PCM pin 22 to connector C198, the VIP Data Link Connector.
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