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Ford Standard Wire Color Code Chart – Circuits 1-95 (1979 Bronco Wiring)
Clean standard wire color code page mapping circuits 1-95 to descriptions and wire colors (horn relay, turn signals, headlamp dimmer high/low, 24V alternator output, windshield wiper).
This document is a Ford standard wire color code reference chart (page 5, titled "STANDARD WIRE COL..." — cut off at the page edge, presumably "STANDARD WIRE COLOR CODE"). It lists numbered electrical circuits from 1 through 95 (with gaps), giving each circuit number, a description of what the wire connects (e.g., circuit 1: Horn Switch to Horn Relay; circuit 32: Ignition Switch to Starter Motor Relay; circuit 44: Turn Signal Flasher to Turn Signal Switch), and its factory wire color, including base color and stripe (e.g., Blue-Yellow Stripe, Red-Green Stripe, Green-White Stripe). The chart covers lighting circuits (headlamps, parking lamps, turn signals, courtesy/cargo lamps), charging system circuits (alternator, regulator, ammeter, battery), ignition and starting circuits, windshield wiper circuits, gauge and warning lamp circuits (oil pressure, temperature, air pressure, low air buzzer), and accessory circuits (cigar lighter, glow plugs, electric fuel pump, heated mirror, defroster). A reader troubleshooting or repairing a wiring harness can use this chart to identify a wire's function by its color and stripe, or to find the correct wire color for a given circuit number when reading factory wiring diagrams. Uploaded with a 1979 Ford Bronco wiring diagram set, though the page itself shows no year or model.
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Frequently asked questions
- What wire color is circuit 1 (horn switch to horn relay)?
- Blue with a yellow stripe.
- What color is the ignition switch to starter motor relay wire (circuit 32)?
- Red with a blue stripe.
- What circuit and color feed the turn signal flasher from the ignition switch?
- Circuit 8, orange with a yellow stripe; circuit 44 (flasher to turn signal switch) is blue.
- What color is the battery to ignition switch feed (circuit 21)?
- Yellow.
- Which wire colors go to the front turn signal lamps?
- Circuit 2 (RH front turn signal) is white-blue stripe; circuit 3 (LH front turn signal) is green-white stripe.
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