What wire colors are used for the high and low beams?

Circuit 12 LG/BK (light green/black) is the high beam feed and circuit 13 R/BK (red/black) is the low beam feed to both headlamps.

Does the headlamp switch have built-in circuit protection?

Yes, the diagram shows a 22.5A circuit breaker (C.B.) inside the headlamp switch.

How is the high beam indicator wired?

Circuit 932 GY/W runs to the instrument cluster (connector C1-2) for the HI BEAM INDICATOR, grounding through C1-3 on circuit 57 BK.

How does DRL affect the headlight wiring?

Trucks without DRL use a Daytime Running Lamps (DRL) jumper; with DRL, circuits 12 LG/BK and 13 R/BK route to the daytime running lamps module, with separate branches shown for F-Series and Bronco.

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1996 Ford Bronco & F-Series Headlight Wiring Diagram - Multi-Function Switch/DRL

Wiring diagram for headlamp and daytime running lamp circuit with color-coded wires and switches

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Wiring diagram of the headlamp circuit showing the headlight switch, multi-function switch, DRL and color-coded wiring to left and right headlamps.

AI caption July 2011 · Photo 104 of 224

This document is a factory-style wiring diagram covering the headlamp circuit for Ford F-Series and Bronco trucks, referencing EVTM Cell 85 for more details. It shows power originating from two hot-at-all-times fuses in the Power Distribution Box: fuse 3 (30A) feeding circuit 38 BK/O to the flash-to-pass switch via circuit 196 DB/O, and fuse 19 (40A) feeding circuit 38 BK/O to the headlamp switch, which contains an internal 22.5A circuit breaker and HEAD/OFF/PARK positions. From the headlamp switch, circuit 15 R/Y feeds the dimmer switch within the multi-function switch (connectors C3-7, C3-2, C2-5, C3-3). Output circuits 12 LG/BK (high beam) and 13 R/BK (low beam) route to the left and right headlamps, with separate routing shown for F-Series versus Bronco and for vehicles with and without Daytime Running Lamps (DRL), including a DRL jumper for non-DRL trucks. Circuit 932 GY/W feeds the high beam indicator in the instrument cluster (connectors C1-2, C1-3), and all lamps ground through circuit 57 BK. Diagram reference number K18850-D appears at lower right.

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Frequently asked questions

Which fuses power the headlight circuit on the F-Series/Bronco?: Two hot-at-all-times fuses in the Power Distribution Box: fuse 3 (30A) feeding circuit 38 BK/O to the flash-to-pass switch, and fuse 19 (40A) feeding the headlamp switch.
What wire colors are used for the high and low beams?: Circuit 12 LG/BK (light green/black) is the high beam feed and circuit 13 R/BK (red/black) is the low beam feed to both headlamps.
Does the headlamp switch have built-in circuit protection?: Yes, the diagram shows a 22.5A circuit breaker (C.B.) inside the headlamp switch.
How is the high beam indicator wired?: Circuit 932 GY/W runs to the instrument cluster (connector C1-2) for the HI BEAM INDICATOR, grounding through C1-3 on circuit 57 BK.
How does DRL affect the headlight wiring?: Trucks without DRL use a Daytime Running Lamps (DRL) jumper; with DRL, circuits 12 LG/BK and 13 R/BK route to the daytime running lamps module, with separate branches shown for F-Series and Bronco.