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'75-77 Bronco Exterior Lighting
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Repair Locations Grid:


Improved, corrected, & combined versions of Seabiscuit's colorized diagrams. Connector faces, component locations, and technical oversight provided by Viperwolf1.

Before printing, click the image to make sure you have the largest version.

See also:

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. . .

https://www.fleet.ford.com/truckbbas/non-html/1997/c37_39_p.pdf

Index '75-77 Bronco Wiring
--------------------------------------------------
Components
Alternator . . . . . . . A1-B1
AM Radio . . . . . . . . D28
Ammeter . . . . . . . . C4
Auxilliary Fuel Tank Sender . F15
Backup Lamp, LHR . . . . . G27
Backup Lamp, RHR . . . . . H27
Backup Lamp Switch . . . . A25, G4
Ballast Resistor . . . . . C7
Battery . . . . . . . . E3-F3
Beam Select Switch . . . . C16
Blinker Switch . . . . . . C22-C23
Block Heater . . . . . . E11
Blower Motor . . . . . . F38
Blower Motor Resistor . . . D38
Blower Motor Switch . . . . B38
Brake Lamp, LHR . . . . . G23
Brake Lamp, RHR . . . . . G26
Brake Lamp Switch . . . . . B21
Brake Warning Lamp . . . . C8
Brake Warning Switch . . . . E8
Breakerless Ignition Module . G6
Carburetor Valve . . . . . C9
Choke Heater . . . . . . E1
Cigar Lighter . . . . . . G35
Coil . . . . . . . . . F7
Constant Voltage Unit . . . C11
Coolant Temperature Gauge . . C13
Coolant Temperature Sender . . E13
CV Unit . . . . . . . . C11
Distributor . . . . . . . F9
Dome Lamp . . . . . . . F33
Dual Brake Warning Switch . . E8
Electric Choke Heater . . . E1
Emergency Signal Flasher . . A24
Emergency Signal Switch . . . C22
Emissions Solenoid Valve . . C9
Engine Block Heater . . . . E11
Flasher, Emergency Signal . . A24
Flasher, Turn Signal . . . . B22
Front Fuel Sender . . . . . F15
Fuel Gauge . . . . . . . C14
Fuel Sender . . . . . . . F15, H14
Fuel Tank Selector Switch . . D15
Fuse 1 (20A) . . . . . . A38
Fuse 2 (15A) . . . . . . A19
Fuse 3 (2A) . . . . . . . B31
Fuse 4 (15A) . . . . . . A34
Fuse 5 (20A) . . . . . . A33
Fusible Link . . . . . . E2-E5
Gauge, Ammeter . . . . . . C4
Gauge, Fuel . . . . . . . C14
Gauge, Oil Pressure . . . . C12
Gauge, Temperature . . . . C13
Generator . . . . . . . A1-B1
Hazard Signal Flasher . . . A24
Hazard Signal Switch . . . . C22
Headlamp, Left . . . . . . F16
Headlamp, Right . . . . . F17
Headlamp Dimmer Switch . . . C16
Headlamp Switch . . . . . B19, C33-C34
Headlamp Switch Lamp . . . . D29
Heater, Block Immersion . . . E11
Heater Blower Switch . . . . B38
Heater Blower Motor . . . . F38
Heater Blower Resistor . . . D38
Heater Control Lamp . . . . F30
Heater, Electric Choke . . . E1
High-Altitude Solenoid Valve . C9
High-Beam Switch . . . . . C16
High-Beam Indicator Lamp . . E17
Horn . . . . . . . . . J12, J13
Horn Relay . . . . . . . F11
Horn Switch . . . . . . . F13
ICVR . . . . . . . . . C11
Ignition Coil . . . . . . F7
Ignition Module . . . . . G6
Ignition Resistor . . . . . C7
Ignition Switch . . . . . B5-D5
Immersion Heater . . . . . E11
Indicator Lamp, Brake Warning . C8
Indicator Lamp, L Turn . . . F21
Indicator Lamp, High-Beam . . E17
Indicator Lamp, R Turn . . . F22
Instrument Cluster Lamp . . . F31
Instrument Cluster Voltage Reg. C11
Key Switch . . . . . . . B5-D5
Lamp, Backup, LHR . . . . . G27
Lamp, Backup, RHR . . . . . H27
Lamp, Brake, LHR . . . . . G23
Lamp, Brake, RHR . . . . . G26
Lamp, Brake Warning Indicator . C8
Lamp, Dome . . . . . . . F33
Lamp, Head, Left . . . . . F16
Lamp, Head, Right . . . . . F17
Lamp, Headlamp Switch . . . D29
Lamp, Heater Control . . . . F30
Lamp, High-Beam Indicator . . E17
Lamp, Instrument Cluster . . F31
Lamp, Left Turn Indicator . . F21
Lamp, License . . . . . . G25
Lamp, Map . . . . . . . F34
Lamp, Park, LHF . . . . . G21
Lamp, Park, LHR . . . . . G23
Lamp, Park, RHF . . . . . G19
Lamp, Park, RHR . . . . . G26
Lamp, PRNDL . . . . . . . F32
Lamp, Reverse, LHR . . . . G27
Lamp, Reverse, RHR . . . . H27
Lamp, Right Turn Indicator . . F22
Lamp, Shifter Illumination . . F32
Lamp, Side Marker, LHF . . . F20
Lamp, Side Marker, LHR . . . D24
Lamp, Side Marker, RHF . . . E18
Lamp, Side Marker, RHR . . . D25
Lamp, Stop, LHR . . . . . G23
Lamp, Stop, RHR . . . . . G26
Lamp, Turn, LHF . . . . . G21
Lamp, Turn, LHR . . . . . G23
Lamp, Turn, RHF . . . . . G19
Lamp, Turn, RHR . . . . . G26
Lamp, Wiper Switch . . . . D29
License Lamp . . . . . . G25
Lighter Socket . . . . . . G35
Loop Ammeter . . . . . . C4
Main Fuel Tank Sender. . . . H14
Map Lamp . . . . . . . . F34
Marker Lamp, LHF Side . . . F20
Marker Lamp, LHR Side . . . D24
Marker Lamp, RHF Side . . . E18
Marker Lamp, RHR Side . . . D25
Module, Breakerless Ignition . G6
Motor, Heater Blower . . . . F38
Motor, Starter . . . . . . H3-J4
Motor, Windshield Wiper . . . G36
Motor, Washer Pump . . . . F37
Neutral Safety Switch . . . . . G4, A27
Oil Pressure Gauge . . . . C12
Oil Pressure Sender . . . . D10
Park Lamp, LHF . . . . . . G21
Park Lamp, LHR . . . . . . G23
Park Lamp, RHF . . . . . . G19
Park Lamp, RHR . . . . . . G26
Power Point . . . . . . . G35
PRNDL Lamp . . . . . . . F32
Radio . . . . . . . . . D28
Radio Capacitor . . . . . D3
Radio Speaker . . . . . . G28
Rear Fuel Sender . . . . . H14
Relay, Horn . . . . . . . F11
Relay, Starter . . . . . . E5
Resistor, Ignition Ballast . . C7
Resistor, Blower Motor . . . D38
Reverse Lamp, LHR . . . . . G27
Reverse Lamp, RHR . . . . . H27
Reverse Lamp Switch . . . . A25, G4
Sender, Fuel, Front . . . . F15
Sender, Fuel, Rear . . . . H14
Sender, Oil Pressure . . . . D10
Sender, Temperature . . . . E13
Shifter Illumination Lamp . . F32
Side Marker Lamp, LHF . . . F20
Side Marker Lamp, LHR . . . D24
Side Marker Lamp, RHF . . . E18
Side Marker Lamp, RHR . . . D25
Solenoid, Carburetor Emission . C9
Speaker . . . . . . . . G28
Starter Motor . . . . . . H3-J4
Starter Relay . . . . . . E5
Stop Lamp, LHR . . . . . . G23
Stop Lamp, RHR . . . . . . G26
Stop Lamp Switch . . . . . B21
Switch, Backup Lamp . . . . A25, G4
Switch, Blinker . . . . . C22-C23
Switch, Blower Motor . . . . B38
Switch, Brake Lamp . . . . B21
Switch, Dual Brake Warning . . E28
Switch, Emergency Signal . . C22
Switch, Fuel Tank Selector . . D15
Switch, Hazard Signal . . . C22
Switch, Headlamp . . . . . B19, C33-C34
Switch, Heater Blower . . . B38
Switch, High-Beam Dimmer . . C16
Switch, Horn . . . . . . F13
Switch, Ignition . . . . . B5-D5
Switch, Neutral Safety . . . . . G4, A27
Switch, Reverse Lamp . . . . A25, G4
Switch, Stop Lamp . . . . . B21
Switch, Turn Signal . . . . C22-C23
Switch, Windshield Washer . . B37
Switch, Windshield Wiper . . B36
Temperature Gauge . . . . . C13
Temperature Sender . . . . E13
Turn Signal, LHF . . . . . G21
Turn Signal, LHR . . . . . G23
Turn Signal Flasher . . . . B22
Turn Signal Indicator, L . . E22
Turn Signal Indicator, R . . E23
Turn Signal, RHF . . . . . G19
Turn Signal, RHR . . . . . G26
Turn Signal Switch . . . . C22-C23
Valve, Carburetor Solenoid . . C9
Voltage Regulator, Alternator . G1-H2
Voltage Regulator, Instruments C11
Water Temperature Gauge . . . C13
Water Temperature Sender . . E13
Windshield Washer Switch . . B37
Windshield Washer Pump Motor . F37
Windshield Wiper Motor . . . G36
Windshield Wiper Switch . . B36
Windshield Wiper Switch Lamp . D29
--------------------------------------------------
Connectors
C201 (Alternator) . . . . . A2, C1
C202 (Voltage Regulator) . . F1-F2
C203 (Radio Capacitor) . . . C2
C205 (Ammeter) . . . . . . C3
C206 (Inline) . . . . . . A3-B3
C207 (Battery POS ) . . . . . E3
C208 (Battery NEG ) . . . . . F3
C209 (Distributor Cap) . . . F9
C211 (Starter Relay Battery) . E5
C212 (Starter Relay Starter) . E5
C213 (Starter Relay S) . . . E5
C214 (Starter Relay I) . . . E5
C216 (Ignition Coil) . . . . G7
C217 (Ignition Coil) . . . . F7
C218 (Inline) . . . . . . D12-13, F7
C222 (Inline, NSS) . . . . F3-F4, A27
C223 (ICVR) . . . . . . . C11
C224 (ICVR) . . . . . . . C11
C225 (Temp Gauge) . . . . . C13
C226 (Temp Gauge) . . . . . C13
C227 (Temp Sender) . . . . E13
C228 (Oil Gauge) . . . . . C12
C229 (Oil Gauge) . . . . . C12
C230 (Oil Sender) . . . . . E12
C231 (Fuel Gauge) . . . . . B14
C232 (Fuel Gauge) . . . . . C14, E14
C233 (Inline) . . . . . . F14, B20
C234 (Rear Fuel Sender) . . . H14
C235 (Tank Select Switch) . . D15
C236 (Tank Select Switch) . . D15
C237 (Tank Select Switch) . . D15
C238 (Inline) . . . . . . E15
C239 (Front Fuel Sender) . . F15
C240 (Ignition Switch) . . . B6-C6
C241 (Ignition Switch) . . . C5-C6
C242 (Ignition Switch) . . . C6
C243 (Inline) . . . . . . B8, D27
C245 (Starter) . . . . . . J5
C249 (Ignition Module) . . . H6
C252 (Ignition Module) . . . F6
C253 (Distributor) . . . . G10
C262 (Carb Solenoid) . . . . C9
C301 (Wiper Switch) . . . . C36-C37
C302 (Inline) . . . . . . D36-D37
C303 (Inline) . . . . . . E36
C304 (Wiper Motor) . . . . F36
C305 (Washer Pump) . . . . F37
C307 (Brake Warning Switch) . E8
C308 (L Backup Lamp) . . . . F27
C309 (R Backup Lamp) . . . . F27
C310 (Backup Switch) . . . . A26
C311 (H/L & Wiper Ill.) . . . D30
C312 (Heater Ill.) . . . . F29
C313 (Inline) . . . . . . E33
C314 (Dome Lamp) . . . . . F33
C315 (Map Lamp) . . . . . E34
C316 (Horn) . . . . . . . G12-H12
C319 (Speaker) . . . . . . E28
C320 (Inline) . . . . . . C23-C27
C321 (Turn Hazard Switch) . . G11, D21-D22, E32
C322 (Radio) . . . . . . C28
C323 (Horn Relay) . . . . . F11
C324 (Manual Override) . . . G13
C325 (Horn Speed Switch) . . F13
C326 (Cable Speed Sensor) . . F12
C327 (Horn Selector Relay) . . H13
C328 (Horn Selector Relay) . . H13
C329 (City Horn) . . . . . J12
C330 (Country Horn) . . . . J13
C401 (Headlamp Dimmer Switch) . C16
C402 (L Headlamp) . . . . . F16
C403 (R Headlamp) . . . . . F17
C404 (RHF Marker) . . . . . E19
C405 (RHF Turn) . . . . . F19
C406 (LHF Marker) . . . . . F20
C407 (LHF Turn) . . . . . F21
C408 (Headlamp Switch) . . . A19-B19, B34, D34
C410 (A/C Outlet) . . . . . E10
C411 (Turn Flasher) . . . . A23, B23
C412 (Hazard Flasher) . . . B24, C24
C413 (Cigar Lighter) . . . . D43
C414 (Block Heater) . . . . E10
C415 (Brake Switch) . . . . A21-B21
C501 (L Taillamp) . . . . . F23
C502 (LHR Marker) . . . . . C24
C503 (R Taillamp) . . . . . F26
C504 (RHR Marker) . . . . . C25
C505 (License Lamp) . . . . F25
C506 (Blower Switch) . . . . B38
C507 (Blower Switch) . . . . C38
C508 (Blower Resistor) . . . D38
C509 (Blower Motor) . . . . E38
--------------------------------------------------
Grounds
G201 (Voltage Regulator) . . F1
G202 (Block) . . . . . . E3
G204 (Rear Fuel Tank) . . . J14
G205 (Front Fuel Tank) . . . J15
G301 (Instrument Panel) . . . G29
G302 (W/S Frame) . . . . . G33
G303 (Wiper Motor) . . . . G36
G401 (L Core Support) . . . H16, H21
G402 (R Core Support) . . . H18, H19
G501 (LHR Side Marker) . . . E24
G502 (RHR Side Marker) . . . E25
G503 (L T/G) . . . . . . H25
G504 (Blower Case) . . . . G38
--------------------------------------------------
Splices
S201 (Starter Relay) . . . . E2
S202 (Ignition Switch) . . . A11
S203 (Ignition Switch) . . . B8
S204 (Ignition Switch) . . . A4
S205 (Ignition Switch) . . . E7
S301 (Steering Column) . . . D31
S302 (Headlamp Switch) . . . A20
S401 (Headlamp Dimmer Switch) . D16
S402 (Headlamp Dimmer Switch) . E16