What color is circuit 850, ballast resistor coil terminal to ignition coil battery terminal?

Circuit 850 is blue with a white stripe.

Which circuits cover the windshield wiper switch and motor to relay wiring?

Circuits 888 (red), 889 (green), 890 (yellow), 891 (yellow-black stripe), 892 (blue), and 893 (blue-orange stripe) cover windshield wiper switch/motor to relay wiring, plus circuit 895 (red) for ignition switch to wiper motor circuit breaker.

What wire color connects the alternator 'F' terminal to the regulator 'F' terminal?

Circuit 877, alternator 'F' terminal to regulator 'F' terminal, is white.

What does circuit 870 connect and what color is it?

Circuit 870 runs from the emergency stoplamp switch to the tractor-trailer plug and is black with a white stripe.

Which circuit feeds the A/C control relay from the circuit breaker?

Circuit 883, circuit breaker to A/C control relay, uses an orange wire.

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Ford Wiring Circuit Color Codes 835-907 - Wire Descriptions & Colors Chart

Wiring circuit number reference list with descriptions and wire colors circuits 835-907

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Master wiring-circuit legend listing circuits 835-907 with descriptions and wire colors (e.g. starter relay solenoid, ballast resistor, transistor ignition, cruise control switches).

AI caption February 2013 · Photo 56 of 104

This document is one page of a Ford wiring circuit reference table listing numbered circuits from 835 through 907, with each circuit's description (the two components or terminals it connects) and its wire color code. The page covers a wide range of electrical systems: rear speaker feed, emergency flasher and brake switch circuits, transistor ignition components (ballast resistor, transistor unit, pick-up coil, distributor, starter relay/solenoid), speed control circuits (make ready switch, set speed, retard, resume, holding relay, 20 and 25 MPH switches, control relay terminals), oil pressure warning circuits, alternator and voltage regulator connections (A, F, NEU, AUX, rectifier terminals), blower motor and A/C control relay wiring, windshield wiper switch/motor-to-relay circuits, and tractor-trailer stoplamp wiring. Wire colors include solid colors (red, black, white, green, blue, orange, purple, brown, gray, yellow) and striped combinations such as red-white stripe, black-yellow stripe, and green-red stripe. A reader can use this page to identify what a numbered circuit does and what color wire to look for when tracing or repairing vehicle wiring. The page is part of a larger multi-page wire color code set uploaded to a 1979 Ford Bronco gallery; the page itself carries no year, model, or part number identification.

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Frequently asked questions

What color is circuit 850, ballast resistor coil terminal to ignition coil battery terminal?: Circuit 850 is blue with a white stripe.
Which circuits cover the windshield wiper switch and motor to relay wiring?: Circuits 888 (red), 889 (green), 890 (yellow), 891 (yellow-black stripe), 892 (blue), and 893 (blue-orange stripe) cover windshield wiper switch/motor to relay wiring, plus circuit 895 (red) for ignition switch to wiper motor circuit breaker.
What wire color connects the alternator 'F' terminal to the regulator 'F' terminal?: Circuit 877, alternator 'F' terminal to regulator 'F' terminal, is white.
What does circuit 870 connect and what color is it?: Circuit 870 runs from the emergency stoplamp switch to the tractor-trailer plug and is black with a white stripe.
Which circuit feeds the A/C control relay from the circuit breaker?: Circuit 883, circuit breaker to A/C control relay, uses an orange wire.