Resource – (Chilton & Haynes) – Wires broke down by color and diagram
Headlights 1983 – 1989:
Black Wire – Ground
Black With Orange Stripe Wire – Hot At All Times
Light Green With Black Stripe Wire – High beam & High Beam Indicator
Red With Black Stripe Wire – Low Beam & Lamp Out Warning
Red With Yellow Stripe Wire – From Main Light Switch To Dimmer Switch
1990 & Later Models:
Black Wire – Ground
Dark Blue With Orange Stripe Wire – Hot To Light Switch
Red With Yellow Stripe Wire – Main Light Switch To Dimmer Switch
Purple Wire – High beam
Red With Black Stripe Wire – Low Beam And Daytime Running Lights
Tan With White Stripe Wire – High beam Indicator
Exterior Lights 1983 – 1989:
Black Wire – Ground
Brown Wire – Courtesy Lamps, Warning Chime, Marker Lamps, Taillight, License Plate Light
Back-Up Lights:
Black Wire – Ground
Black With Pink Stripe Wire – Positive
Purple With Orange Stripe Wire – Power To Neutral Safety & Back-Up Switch
Dome Cargo Lights 1983 – 1988:
Black Wire – Ground
Black With Light Blue Stripe Wire – Hot To Dome Lamp From Door Jamb Switch
Black With Pink Stripe Wire – Hot To Cargo Lamp And Dome Lamp
Light Green With Yellow Stripe Wire – To Glove Box , Door Jamb Switch, Digital Clock, Map Light, Under hood Light
Red With Pink Stripe Wire – Ignition Key/Safety Belt/Lamps “On” Warning
Tan With White Stripe Wire – Hot At All Times To Light Switch
Dome Cargo Lights 1984 – 1988 (Bronco II):
Black Wire – Ground
Black With Light Blue Stripe Wire – To Dome & Cargo Lamp From Door Jamb Switch
Light Green With Yellow Stripe Wire – To Glove Box, Power To Door Jamb Switch, Cargo Door Switch, Under hood Lamp, Cargo Lamp, Map Lamp, Digital Clock (Hot At All Times From Fuse Panel)
Red With Pink Stripe Wire – Ignition Key/ Safety Belt/ Headlight “On” Warning Buzzer
Tan With White Stripe Wire – Hot At All Times From Fuse Panel To Light Switch
Turn Stop / Hazard Lights:
Light Blue Wire – From Turn Signal Flasher To Multi Function Switch To Be Split To Lights
Light Green Wire – From Stop Light Switch To Multi Function Switch To Be Split To Lights
Light Green With Orange Stripe Wire – Left Rear Turn/Stop Lights (Trailer Also)
Light Green With Red Hash Marks Wire – Power To Stop Light Switch
Light Green With White Stripe Wire – Left Front Turn Signal & Indicator
Orange With Light Blue Stripe Wire – Right Rear Turn/Stop Lights (Trailer Also)
Purple With Orange Hash Marks Wire – Hot In Run From Fuse Block To Turn Signal Flasher
Red With White Hash Marks Wire – Hot At All Times To Hazard Flasher
White With Light Blue Stripe Wire – Right Front Turn Signal And Indicator
White With Red Hash Marks Wire – From Hazard Flasher To Multi Function Switch To Be Split To Lights
Instrument Panel Lights 1983 – 1989:
Black Wire – Ground
Light Blue With Red Stripe Wire – From Light Switch To Dash Lights
Orange With Black Stripes Wire – From Light Switch To Radio
Instrument Panel Lights 1990 – 1991
Black Wire – Ground
Dark Blue With White Stripes Wire – Ground From Heater Control
Light Blue With Red Stripes Wire – From Light Switch To Dash Lights
Orange With Black Stripes Wire – From Light Switch To Radio
Power Windows
Black Wire – Ground
Light Blue With Black Stripe Wire – Power To Window Switch Hot In Accessory Or Run From Fuse Panel
Red With Black Stripe Wire – Right Window Down
Yellow Wire – Left Window Up
Yellow With Black Stripe Wire – Right Window Up
White With Black Stripe Wire – Left Window Down
Power Door Locks 1985 – 1988
Black Wire – Ground
Black With White Stripe Wire – Hot At All Times to lock relays
Pink With Black Stripe Wire – From Lock Relay To Door Lock Motor
Pink With Light Green Stripe Wire – From Door Lock Switch To Unlock Relay
Pink With Orange Stripe Wire – From Unlock Relay To Door Lock Motor
Pink With Yellow Stripe Wire – From Door Lock Switch To Lock Relay
Power Door Locks 1989 – 1991
Black Wire – Ground
Black With White Stripe Wire – Hot At All Times To Door Control Switch
Pink With Black Stripe Wire – From Switch To Unlock Motor
Pink With Light Green Stripe Wire – Lock To Lock Between Door Lock Switches
Pink With Orange Stripe Wire – From Switch To Lock Motor
Pink With Yellow Stripe Wire – Unlock To Unlock Between Door Unlock Switches
Charging System / Power Distribution 1983 – 1985:
Black Wire – Ground
Black With Orange Stripe Wire – (Main Power) Power To (B) on Alternator (Stator And Rectifier Assembly)
Light Green With Red Stripe Wire – Voltage Regulator To Red With Light Green Wire Feeding Fuse Block And Ignition Switch
Orange With Light Blue Stripe Wire – From Alternator Field (F) To Voltage Regulator
Red With Orange Stripe Wire – To Ammeter From Black Wire With Orange Stripe
Yellow Wire – Power To Ignition Switch And Fuse Block
Yellow With Light Green Stripe Wire – To Ammeter From Black Wire With Orange Stripe
Yellow With White Dots Wire – From Black Wire With Orange Stripe To Voltage Regulator Also To Radio Noise Capacitor
White With Black Stripe Wire – Alternator (S) To Voltage Regulator And Choke Heater On 2.0 Liters
Charging System / Power Distribution 1986 – 1988:
Black Wire – Ground
Black With Orange Stripe Wire – Power From Starter Relay To Red With Orange Stripe Wire, Yellow With Light Green Stripe Wire – Yellow Wire, Yellow With White Stripe Wire, Alternator, And Fuse Block
Brown Wire With Pink Stripe – From Start Ignition Position To Light Green With Red Stripe Wire
Light Green With Red Stripe Wire – Alternator To Light Green With Red Stripe Wire
Red With Light Green Wire – From Ignition Run Position To Light Green With Red Stripe Wire
Red With Orange Stripe Wire – From Black With Orange White To Ammeter
Yellow Wire – From Black With Orange Stripe Wire To Ignition Switch And Fuse Panel
Yellow With Light Green Stripe Wire – From Black Wire With Orange Stripe To Ammeter
Yellow With White Wire – From Black With Orange Stripe Wire To Alternator
Charging System 1991
Black Wire – Ground
Black With Orange Stripe Wire – Power Distribution Box To Alternator
Gray With Yellow Stripe Wire – From Ignition Run To Fuse Panel
Light Green With Red Stripe Wire – From Voltage Regulator To Charge Indicator Light
Orange With Black Stripe Wire – Power Distribution Box To Fuse Panel
Orange With Light Blue Stripe Wire – From Starter Relay To Alternator
Red Wire – Battery Positive To Power Distribution Box
Yellow With White Stripe Wire – From Power Distribution Box To Voltage Regulator
White With Black Stripe Wire – From Alternator To Built In Voltage Regulator
Radio:
Click HERE for radio and speaker wiring diagrams.
Black Wire – Ground
Black With White Stripe Wire – Right Rear Speaker
Light Blue With Red Stripe Wire – From Light Switch To Radio (light) (Headlights)
Light Green With Yellow Stripe Wire – Hot At All Times To Radio
Orange With Black Stripe Wire – From Light Switch To Radio (Light) (Parking)
Orange With Red Stripe Wire – Right Rear Speaker
Red Wire – To Ground With Black Wire
Yellow With Black Stripe Wire – Hot In Accessory Or Run To Radio
(With Convenience Power Group)
Dark Green With Orange Stripe Wire – Right Door Speaker
Light Blue With White Stripe Wire – Left Door Speaker
Orange With Light Green Stripe Wire – Left Door Speaker
White With Light Green Stripe Wire – Right Door Speaker
(Without Convenience Power Group)
Dark Green With Orange Stripe Wire – Right Door Speaker
Light Blue With White Stripe Wire – To Dark Green With Orange Stripe Wire To Left Door Speaker
Orange With Light Green Stripe Wire – To White With Light Green Wire To Left Door Speaker
Pink With Light Green Stripe Wire – Left Rear Speaker
Tan With Yellow Stripe Wire – Left Rear Speaker
White With Light Green Stripe Wire – Right Door Speaker
Electronic Shift Control
Black Wire – Ground
Black With Orange Stripe Wire – From Electric Shift Control Module To Ground
Black With White Stripe Wire – Hot At All Times To Electric Shift Control Module
Brown Wire – Electric Shift Control Module To Transfer Case Assembly Shift Motor
Brown With White Stripe Wire – Electric Shift Control Switch (4-Lo) To Electric Shift Control Module And Instrument Cluster. Also Electric Shift Control Switch To Transfer Case Magnetic Clutch Coil
Dark Blue Wire – Electric Shift Control Switch (4-High) To Electric Shift Control Module
Gray Wire – From Electric Shift Control Switch (4-High) To Electric Shift Control Module And Instrument Cluster
Light Green Wire – Electric Shift Control Module To Transfer Case Speed Sensor
Light Blue Wire – From Electric Shift Control Switch Gray Wire (From 4-High) To Instrument Cluster And Rear Anti Lock Brake Module
Orange Wire – Electric Shift Control Module To Transfer Case Assembly Magnetic Clutch Coil
Orange With Light Blue Stripe Wire – Electric Shift Control Switch (4-Lo) To Electric Shift Control Module
Orange With White Stripe Wire – Electric Shift Control Module To Transfer Case Magnetic Clutch Coil
Pink Wire – To Transmission Neutral Safety Switch
Purple With Yellow Stripe – Electric Shift Control Module To Transfer Case Magnetic Clutch Coil
Red With Light Blue Stripe – From Neutral Safety Switch To Starting System
Red With White Stripe Wire – Neutral Safety Switch To Electric Shift Control Module
Red With Yellow Stripe Wire – Hot In Start Or Run Position To White With Purple Stripe Wire To Electric Shift Control Module
White Wire – Electric Shift Control Module To Transfer Case Magnetic Clutch Coil
Yellow With White Stripe Wire – Electric Shift Control Module To Transfer Case Assembly Magnetic Clutch Coil
Yellow Wire – Electric Shift Control Module To Transfer Case Assembly Shift Motor