What size and color are the fuse links in the 1994 Bronco/F-Series power distribution circuit?

Fuse Links J, A, and B are all 12 GA gray fuse links. Fuse Link J is at location 151-2 E1, and Fuse Links A and B are at 151-2 D1.

What fuse protects the trailer battery charge circuit?

Fuse Q, a 30A fuse in the Engine Compartment Fuse Box (151-2 D9), which is present with trailer tow only. It feeds circuit 37 (Y) to the Trailer Battery Charge Relay (page 95-1).

What wire circuits feed the Integral Alternator Regulator (IAR)?

Circuits 38 BK/O (to pins B+ via connector C153) and 36 Y/W (to pin A via connector C154). The IAR is covered on page 12-1, and a note states part of this wiring is for 4.9L & 7.5L engines only.

Where are the battery grounds on this diagram?

The battery negative grounds through BK wires to G103 (engine) and G101 (body); additional ground information is on page 10-3.

Does connector C105 apply to the Bronco?

No. C105 (location 151-2 B9) is marked '* ALL EXCEPT BRONCO' in the trailer battery charge circuit.

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1994 Ford Bronco/F-Series EVTM Pg 13-1 Power Distribution Wiring Diagram (Gas)

1994 Ford Bronco F-Series power distribution wiring diagram, gasoline, page 13-1

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1994 Bronco/F-Series gasoline power distribution schematic: battery, starter relay/solenoid, fuse links A/B/J, integral alternator regulator, engine/body grounds G103/G101, and trailer-tow battery charge relay.

AI caption May 2019 · Photo 399 of 413

This is a scanned page (13-1, Power Distribution) from the 1994 Ford Bronco/F-Series Electrical and Vacuum Troubleshooting Manual (EVTM), covering gasoline engines. The schematic traces battery power distribution: the battery positive feeds the starter relay and starter solenoid (page 20-2) via red (R) wires, while black (BK) wires ground the battery to G103 (engine) and G101 (body), with additional grounds referenced on page 10-3. Fuse Link J (12 GA gray, location 151-2 E1) feeds the Integral Alternator Regulator (IAR, page 12-1) through connectors C153 and C154 using circuits 38 BK/O and 36 Y/W; a note indicates certain wiring applies to 4.9L and 7.5L engines only. Fuse Links A and B (both 12 GA gray, 151-2 D1) feed circuit 37 (yellow) into the Engine Compartment Fuse Box (151-2 D9), through fuse Q (30A, present with trailer tow package only), then through connector C105 (151-2 B9, all except Bronco) to the Trailer Battery Charge Relay in the Trailer Relay Box (page 95-1). Readers can learn fuse link gauges/colors, circuit numbers, wire colors, connector IDs, ground locations, and cross-reference pages for related systems.

This document covers 1994, which may differ from this 1996 Ford Bronco.

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Frequently asked questions

What size and color are the fuse links in the 1994 Bronco/F-Series power distribution circuit?: Fuse Links J, A, and B are all 12 GA gray fuse links. Fuse Link J is at location 151-2 E1, and Fuse Links A and B are at 151-2 D1.
What fuse protects the trailer battery charge circuit?: Fuse Q, a 30A fuse in the Engine Compartment Fuse Box (151-2 D9), which is present with trailer tow only. It feeds circuit 37 (Y) to the Trailer Battery Charge Relay (page 95-1).
What wire circuits feed the Integral Alternator Regulator (IAR)?: Circuits 38 BK/O (to pins B+ via connector C153) and 36 Y/W (to pin A via connector C154). The IAR is covered on page 12-1, and a note states part of this wiring is for 4.9L & 7.5L engines only.
Where are the battery grounds on this diagram?: The battery negative grounds through BK wires to G103 (engine) and G101 (body); additional ground information is on page 10-3.
Does connector C105 apply to the Bronco?: No. C105 (location 151-2 B9) is marked '* ALL EXCEPT BRONCO' in the trailer battery charge circuit.