Wiring Diagrams: Ford Bronco 1987-1991

Technical Reference

Member-uploaded diagrams & documents for this generation. AI-classified; community-verified where badged.

Wiring Diagrams

• Ford 3G Alternator Wiring Diagram - Mega Fuse, Charge Lamp & Wire Colors
  This document is a color-coded wiring diagram for a Ford 3G alternator charging system. It shows the alternator's internal components, the stator, rectifier (diode bridge), and voltage regulator with its 'sensing and…
• 1973-1974 Ford Point-Type Ignition System Circuit Diagram - Coil & Distributor
  This document is a labeled schematic diagram of a typical conventional point-type ignition system circuit as used on 1973-1974 vehicles. The diagram illustrates the complete ignition circuit, distinguishing between the…
• Ford 4-Terminal Starter Relay Wiring Diagram - S & I Terminals, Coil & Starter
  This is an illustrated wiring diagram showing how a Ford 4-terminal starter relay (fender-mounted solenoid) connects into the starting and ignition system. The diagram uses photographs of the actual components: the…
• Ford 4-Terminal Starter Solenoid Wiring Diagram - S & I Terminal Functions
  This document is an annotated photograph explaining the wiring of a Ford 4-terminal starter solenoid (starter relay). The image shows the solenoid mounted on its bracket with callouts identifying each connection point…
• KC Driving Lights & LED Light Bar Relay Wiring Diagram - Ford Bronco Aux Lights
  This document is a hand-drawn/computer-drawn wiring diagram for adding auxiliary lighting, KC driving lights and an LED light bar, to a vehicle, uploaded to a 1991 Ford Bronco gallery. It shows two standard 4/5-pin…
• Pinout charts showing C128 VIP self-test connector for 4.9L, 5.0L and 5.8L, 7.5L and 7.3L engines, plus the warning chime module connector.
• 1986-95 Ford V8 Truck Speed Density EEC-IV Pinout Wiring Diagram
  This document is a wiring/pinout schematic for the Ford EEC-IV Speed Density fuel injection system as used on 1986-95 V8 trucks. It shows connector drawings and EEC processor pin assignments for the main engine sensors…
• 1990 Ford Bronco Speed Control Wiring Diagram 31-2 - Cruise Servo & Amplifier
  This document is page 31-2 of a Ford factory wiring diagram (EVTM-style) covering the Speed Control (cruise control) system for gasoline engines. It shows the speed control servo assembly, including the modulating…
• 1990 Ford Bronco Speed Control Wiring Diagram 31-1 - Cruise Control Circuit
  This is page 31-1 of a Ford wiring diagram covering the Speed Control (cruise control) circuit, uploaded as applying to a 1990 Ford Bronco. The diagram traces power from two fuse panel sources: Fuse 6 (15A, hot in…
• Ford EEC-IV Self-Test Connector Diagram - STO, STI, SIGRTN & Fuel Pump Pins
  This document is a labeled diagram of the Ford EEC-IV diagnostic Self-Test connector (STO) and the separate single-pin Self-Test Input (STI) connector. The larger multi-cavity connector is drawn in gray with four…
• 1995 Ford Bronco 5.0L Engine Controls Wiring Diagram - MAP, HO2S, PCM (24-6)
  This is page 24-6 of the 1995 Ford Bronco factory wiring diagrams (EVTM), covering the Engine Controls circuit for the 5.0L engine. The diagram shows wiring between the Powertrain Control Module (PCM), the Manifold…
• 1990 Ford Bronco Courtesy Lamps Wiring Diagram 89-2 - Dome & Cargo Lamp Circuit
  This document is page 89-2 of a Ford factory wiring diagram covering the Courtesy Lamps circuit for a Bronco equipped with a cargo lamp. Power comes from fuse 8 (15A) in the fuse panel (referenced to pages 12-3 and…
• 1990 Ford Bronco MLPS Connector Pinout Diagram - E4OD Wire Colors & Circuits
  This document is a connector face diagram for a Ford Manual Lever Position Sensor (labeled in the scan as "MANUAL LEVEL POSITION SENSOR"), the transmission range sensor used with the E4OD automatic transmission. The…
• 1990 Ford Bronco Connector Pinouts: MLPS, Main Light & Tailgate Window Switch
  This document is page 150-14 from a Ford connector faces/pinout charts reference, showing connector face drawings and pin/wire identification for three components: the Main Light Switch, the Manual Level Position…
• 1990 Ford Bronco Instrument Cluster Connector Pinout C250 & C251 (150-12)
  This document is page 150-12, "Connector Faces/Pinout Charts," from a Ford factory electrical/vacuum troubleshooting manual, showing the two instrument cluster connectors (C250 and C251) for gasoline-engine vehicles…
• 1995 Ford Bronco Warning Chime Module C280 Connector Pinout & Wire Colors (66-2)
  This document is page 66-2 of the 1995 Ford Bronco electrical/wiring manual covering the Warning Chime system. It shows the connector face diagram for connector C280 (gray), which plugs into the Warning Chime Module…
• 1995 Ford Bronco Warning Chime Wiring Diagram (66-1) - Seat Belt & Key Buzzer
  This is page 66-1 of the 1995 Ford Bronco electrical and vacuum troubleshooting manual (EVTM), showing the Warning Chime circuit wiring diagram. It documents the solid-state Warning Chime Module with its seven pins…
• Ford Duraspark II Breakerless Ignition Wiring Diagram - Primary & Secondary
  This document is a pictorial wiring diagram of a Ford breakerless (Duraspark II-style) ignition system, showing the physical components and how the primary and secondary circuits interconnect. Components illustrated…
• Ford Bronco IAC / Throttle Air Bypass Valve Solenoid Wiring Diagram (C160, S165)
  This document is a cropped portion of a Ford wiring diagram showing the Throttle Air Bypass Valve Solenoid (idle air control) circuit. The diagram shows connector C160 at the top, with power feed circuit 361 (red wire…
• Ford Bronco Idle Air Bypass Valve Wiring Diagram - Circuit 361 IAC Schematic
  This is a close-up crop from a Ford wiring schematic page showing the engine-control circuit for the Idle Air Bypass Valve. Circuit number 361 is shown with the wire color code "R" (red) feeding the Idle Air Bypass…
• Ford Bronco Idle Speed Control Wiring Diagram - ISC Solenoid, Diode & Wire Colors
  This is a cropped fragment of an automotive wiring schematic showing part of an idle speed control circuit. Two parallel circuit branches are shown, both fed from a common RED wire on the left. The upper branch passes…
• 1995 Ford Bronco Instrument Cluster Wiring Diagram 60-2 - Temp & Oil Gauges
  This is page 60-2 of the 1995 Ford Bronco electrical/wiring diagram manual, covering the Instrument Cluster gauge circuits for the coolant temperature gauge and engine oil pressure gauge. The diagram shows the…
• Constant to Momentary 12V Output Relay Wiring Diagram - Capacitor & Resistor
  This document is a small electrical schematic titled "Constant to Momentary 12v(+) Output," sourced from the12volt.com (visible watermark). It shows how to wire a standard 5-pin automotive relay (terminals 30, 85, 86…
• Ford Bronco/F-Series A/C-Heater Electrical Wiring Diagram - Clutch Circuit
  This is a scanned page from a Ford factory-style electrical/vacuum troubleshooting manual (EVTM) showing the A/C-Heater (Electrical) wiring diagram. It covers the A/C clutch circuit fed from fuse panel position 9 (30…
• Ford Bronco/Truck Duraspark Start-Ignition Wiring Diagram 5.8L 7.5L - EVTM p.27
  This is page 27 of a Ford electrical and vacuum troubleshooting manual (EVTM), showing the Start/Ignition wiring diagram for Duraspark ignition on 5.8L and 7.5L engines. It traces power from Fuse Link M (14 GA green…
• Ford EEC-IV 60-Pin ECM Connector Pin Numbering Diagram (Pinout Layout)
  This image is a simple graphical pinout reference for a 60-pin Ford EEC-IV engine computer (ECM/PCM) connector, uploaded to a 1990 Ford Bronco gallery. The drawing shows the connector body face-on with three horizontal…
• DPDT Rocker Switch Wiring Diagram - DC Motor Polarity Reversing Hookup
  This document is a wiring diagram/photograph showing how to wire a 6-terminal double-pole double-throw (DPDT) rocker switch to reverse the polarity of a DC motor. The switch is shown from the rear with its six screw…
• Ford Gray Distributor-Mount TFI Ignition Module Pinout - Push Start Version
  This document is a labeled pinout diagram of the gray distributor-mounted TFI (Thick Film Integrated) ignition control module, specifically the "Push Start" version, as used in Ford vehicles. The drawing shows the…
• Transmission Lockup TCC/OD Case Connector Wiring Diagram - 52 & 44 Switches
  This is a color-coded, hand-drawn wiring diagram showing how to wire a transmission case connector for torque converter clutch (TCC) and overdrive (OD) lockup control. The transmission case connector (shown in yellow)…
• Ford Bronco RABS Module Harness Connector Pin View - Pin #2 Location Diagram
  This document is a simple line drawing showing the pin-out view of a 14-pin module harness connector, uploaded as a reference for the RABS (Rear Anti-lock Brake System) module on a 1990 Ford Bronco. The diagram shows…
• 1995 Ford Bronco 5.0L Fuel Pump Wiring Diagram - Inertia Switch & Sender 24-8
  This is page 24-8 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual, covering the Engine Controls (5.0L) fuel pump circuit. The wiring diagram traces power from connector C202 (continued from page 24-1)…
• 1995 Ford Bronco Radio Wiring Diagram 130-4 - C258 Speaker Connector Pinout
  This document is page 130-4 of the 1995 Ford Bronco factory wiring manual, covering the RADIO section. It shows the pinout for connector C258, the 8-pin radio speaker connector, in two versions: the standard radio…
• 1995 Ford Bronco Radio Wiring Diagram - C257 Connector Pinout (Page 130-3)
  This document is page 130-3 of the 1995 Ford Bronco factory wiring reference, covering the RADIO system. It shows connector face views and a pinout table for connector C257, in two variants: the standard C257 RADIO…
• 1995 Ford Bronco Radio Premium Sound Wiring Diagram 130-2 - Amp & Speakers
  This is page 130-2 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual (EVTM), showing the wiring diagram for the Radio with Premium Sound. It documents power feeds to the radio: circuit 797 (LG/P) from…
• 1995 Ford Bronco Radio Wiring Diagram 130-1 - Speaker & Power Circuits
  This is page 130-1 (RADIO) from the 1995 Ford Bronco factory electrical/vacuum troubleshooting manual (EVTM), showing the base (non-premium) radio wiring schematic. It documents the radio's power feeds: circuit 797…
• Ford MAF Sensor Connector Pinout & Electrical Test Chart - Wire Colors
  This document is a wiring and testing reference for the Ford Mass Air Flow (MAF) sensor connector. It shows two connector diagrams identifying the pin assignments and wire specifications: pin D is MAF SIG (Blue/Orange…
• 1988-93 Ford Mustang Mass Air EEC-IV Wiring Diagram - Sensor & Injector Pinout
  This is a color-coded EEC-IV wiring/pinout schematic for 1988-1993 Mass Air Ford Mustang electronic fuel injection systems. It maps each engine management sensor and actuator connector to its EEC computer pin number…
• 1995 Ford Bronco A/C Heater Wiring Diagram - Clutch Cycling Switch Circuit 54-3
  This is page 54-3 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual, showing the wiring diagram for the Air Conditioner/Heater A/C clutch control circuit. Power originates from fuse 6 (15A) in the fuse…
• 1990 Ford Bronco Manual A/C-Heater Wiring Diagram 54-2 - Blower & AC Clutch
  This document is page 54-2 of a Ford factory wiring diagram set, covering the Manual A/C-Heater system for gasoline-engine vehicles. It shows power originating from fuse 9 (30A, hot in run) in the fuse panel (pages…
• 1995 Ford Bronco 5.0L Engine Controls Wiring Diagram 24-1 - MAF & PCM Power
  This is page 24-1, "Engine Controls (5.0L)," from the 1995 Ford Bronco electrical/vacuum troubleshooting manual (dated 5/12/94), focused on PCM power distribution and the Mass Air Flow (MAF) sensor circuit. It shows…
• 1995 Ford Bronco 5.0L Engine Controls Wiring Diagram (Page 24-1) - PCM & MAF
  This is page 24-1 of the 1995 Ford Bronco Electrical and Vacuum Troubleshooting Manual, covering Engine Controls for the 5.0L engine. Dated 5/12/94, the wiring diagram shows power distribution to the Powertrain Control…
• 1990 Ford Bronco 5.0L/5.8L Start Ignition Wiring Diagram - TFI Module (20-4)
  This document is page 20-4 of a Ford factory electrical/vacuum troubleshooting manual, covering the Start/Ignition circuit for 5.0L and 5.8L engines. It is a wiring diagram showing the TFI (Thick Film Ignition)…
• 1990 Ford Bronco Instrument Cluster Wiring Diagram 60-2 (Gas, No Tachometer)
  This document is page 60-2 of a Ford electrical/vacuum troubleshooting manual, showing the instrument cluster wiring diagram for gas engine vehicles without a tachometer. Power comes from fuse 18 (15A) in the fuse…
• 1990 Ford Bronco Instrument Cluster Wiring Diagram 60-1 - Gas with Tachometer
  This document is page 60-1 of a Ford factory wiring diagram set, showing the Instrument Cluster circuit for gas engines equipped with a tachometer. Power enters the cluster from fuse 18 (15A) in the fuse panel, hot in…
• 1995 Ford Bronco 5.8L (MAP) PCM Connector C185 Pinout - 60-Pin EEC Diagram
  This document is a pinout diagram for connector C185, the gray 60-pin Powertrain Control Module (PCM / EEC) connector on a 1995 Ford Bronco with the 5.8L (MAP-equipped) engine. The connector face is drawn with all 60…
• 1995 Ford Bronco Charging System Wiring Diagram - Alternator & Regulator (12-1)
  This is page 12-1 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual, showing the Charging System wiring diagram. It illustrates the circuit from the battery (grounded at G101 body and G103 engine via BK…
• 1995 Ford Bronco 5.0L Engine Controls Wiring Diagram - PCM & Fuel Pump Relay 24-1
  This document is page 24-1 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual, covering Engine Controls for the 5.0L engine, dated 5/12/94. It shows the power distribution portion of the engine control…
• 1995 Ford Bronco 5.8L California Wiring Diagram 25-11: MIL & Heated O2 Sensor
  This document is page 25-11 of a Ford factory wiring diagram set covering Engine Controls for the 5.8L (California emissions) engine. It shows the circuits for the Malfunction Indicator Lamp (MIL) in the instrument…
• 1986 Ford Bronco EFI 5.0L Electronic Engine Control Wiring Diagram (Page 60)
  This is page 60 of a Ford electrical/vacuum troubleshooting manual (EVTM) showing the Electronic Engine Control wiring diagram for the EFI 5.0L engine. It traces power from the ignition switch (circuit 20 W/LB via Fuse…
• 1995 Ford Bronco Starting System Wiring Diagram (20-2) - Starter Relay & TR Sensor
  This is page 20-2 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual, showing the second half of the Starting System wiring diagram (continued from page 20-1 at connector C103M). It covers both manual…
• 1995 Ford Bronco Starting System Wiring Diagram (Page 20-1) - Ignition & CPP
  This document is page 20-1 of the 1995 Ford Bronco electrical wiring diagram set, covering the Starting System. It directs readers to section 03-06 of the Service Manual for diagnostic information and to page 149-2 for…
• 1995 Ford Bronco Backup Lamps Wiring Diagram (93-1) - TR Sensor & Switch
  This document is page 93-1 of the 1995 Ford Bronco electrical/wiring diagram manual, covering the Backup Lamps circuit. It shows that power comes from a 15A fuse (position E) in the Engine Compartment Fuse Box, hot in…
• 1995 Ford Bronco E4OD Transmission Wiring Diagram (EVTM Page 30-1)
  This is page 30-1 of the 1995 Ford Bronco Electrical and Vacuum Troubleshooting Manual (EVTM), showing the wiring schematic for the E4OD automatic transmission control circuits. It traces power from the fuse panel…
• 1995 Ford Bronco Anti-Theft Wiring Diagram 112-3 - Door Lock & Tamper Sensor
  This is page 112-3 of the 1995 Ford Bronco factory wiring diagram set (EVTM), covering the Anti-Theft system. The diagram shows the Anti-Theft Controller Module (grid reference 151-3 A4) with its Lock Doors (pin 9)…
• 1995 Ford Bronco Anti-Theft Wiring Diagram 112-2 - Controller Module Circuits
  This is page 112-2 of the 1995 Ford Bronco electrical vacuum troubleshooting manual (EVTM), covering the Anti-Theft system wiring. The schematic shows the Anti-Theft Controller Module (component location reference…
• 1995 Ford Bronco Anti-Theft System Wiring Diagram (Page 112-1)
  This is page 112-1 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual, showing the Anti-Theft system wiring diagram. It covers the Anti-Theft Controller Module (component location 151-3 A4) and its power…
• Ford Black Remote-Mount TFI Ignition Module Wiring Schematic - EEC Pinout
  This document is a wiring schematic for the black remote-mounted TFI (Thick Film Ignition) module used on Ford EEC-IV ignition systems. It shows the 8-pin distributor connector (pins 1-8) and how its circuits route…
• Ford TFI Ignition Module Wiring Schematic - Black Distributor Mounted (EEC-IV)
  This is a wiring schematic for the black distributor-mounted TFI (Thick Film Ignition) ignition module used on Ford EEC-IV fuel-injected vehicles. The diagram shows the six-pin TFI module connector on the left and…
• Ford Gray Remote Mount TFI Ignition Module Wiring Diagram - EEC-IV Schematic
  This document is a wiring schematic for the gray remote-mounted TFI (Thick Film Ignition) ignition module used in Ford EEC-IV ignition systems, published by RJM Injection Technologies (www.fordfuelinjection.com…
• Ford TFI Ignition Module Wiring Schematic - Gray Distributor Mount (EEC Pins)
  This document is a wiring schematic for the gray distributor-mounted TFI (Thick Film Ignition) ignition module used on Ford EEC-controlled vehicles. It shows the six-pin TFI module connector and traces each pin's…
• 1995 Ford Bronco Ignition System Wiring Diagram - TFI, ICM & PCM Schematic
  This document is page 21-1, "Ignition System," from the 1995 Ford Bronco wiring diagram manual. It shows the complete ignition system schematic, including the Powertrain Control Module (PCM), SPOUT check connector…
• Ford 5.0L & 5.8L TFI Start/Ignition Wiring Diagram - EEC Module & Coil (20-4)
  This is a scanned page (20-4, "START/IGNITION") from a Ford factory wiring diagram manual covering the start/ignition circuit for 5.0L and 5.8L engines with the TFI (Thick Film Ignition) system. The diagram shows the…
• 1986-95 Ford V8 Truck Speed Density EEC-IV Wiring Diagram - VSS & Sensor Pins
  This is a wiring/pin-out schematic for the Ford EEC-IV speed density fuel injection system used on 1986-95 V8 trucks, produced by RJM Injection Technologies (fordfuelinjection.com, copyright 2004). It shows connector…
• Ford DuraSpark II Ignition Wiring Diagram - Module, Coil & Resistor Schematic
  This document is a hand-drawn color wiring schematic for a Ford DuraSpark II ignition system. It shows how the DuraSpark module connects to the distributor, TFI coil, ballast resistor, ignition switch, and starter…
• 1990 Ford Bronco Anti-Lock Brakes (RABS) Wiring Diagram - EVTM Page 42-2
  This document is page 42-2 of a Ford factory electrical/vacuum troubleshooting manual (EVTM), showing the wiring schematic for the Anti-Lock Brakes system, specifically the Rear Anti-Lock Brake System (RABS). The…
• 1989-95 Ford MAF Sensor Connector Pinout Diagram - Wire Colors & Pins A-D
  This document is a color-coded connector pinout diagram for the 1989-95 Ford Mass Air Flow (MAF) sensor. It shows an oval 4-pin sensor connector viewed face-on, with pins labeled A, B, C, and D from left to right. Each…
• 1989 Ford Bronco Ignition Switch Bypass Wiring Diagram - Toggle & Push-Button
  This is a hand-drawn wiring diagram, uploaded to the gallery of a 1989 Ford Bronco, showing a simple ignition-switch bypass or replacement scheme using toggle switches and a push-button. On the left, two wires labeled…
• Ford TFI Module Connector Pinout - 4.9L 5.0L 5.8L Wire Colors & Circuits
  This document is a scanned page (page 150-19, titled "Connector Faces/Pins") from a Ford electrical/vacuum reference manual showing the connector face pinout for the TFI (Thick Film Ignition) module used on 4.9L, 5.0L…
• Ford HEGO Heated Oxygen Sensor Connector Pinout Diagram - 1990 Bronco EFI
  This document is a simple connector pinout diagram for a Heated Exhaust Gas Oxygen (HEGO) sensor, uploaded as reference material for a 1990 Ford Bronco. The illustration shows a face view of the round 4-pin HEGO sensor…
• 2008 Kawasaki KLX140 / KLX140L Wiring Diagram - Electrical System Schematic
  This document is a scanned page (15-8 Electrical System, Wiring Diagram) from a Kawasaki service manual, hand-labeled "2008 KLX 140 / KLX 140L." It shows the complete electrical schematic for the KLX140 dirt bike…
• 1995 Ford Bronco TFI Ignition Control Module Connector C1021 Pinout Diagram
  This document is a scanned page (labeled "Ignition System 21-2") from a 1995 Ford Bronco wiring reference. It shows the connector face view and pinout for connector C1021 (gray), which plugs into the Ignition Control…
• 1995 Ford Bronco C103 In-Line Connector Pinout - EVTM Page 150-2
  This is page 150-2, 'In-Line Connector Faces,' from the 1995 Ford Bronco electrical/vacuum troubleshooting manual (EVTM). It shows face-view pinout diagrams for the mating in-line connector pair C103F (female, black…
• 1995 Ford Bronco TR Sensor (MLPS) Testing - E4OD/4R70W Pinout & Ohm Values
  This is page 149-9 of a Ford component testing reference, titled 'Component Testing: Transmission Range (TR) Sensor' for the 1995 Bronco. It covers bench/continuity testing of the TR sensor (also known as the MLPS)…
• 1995 Ford Bronco E4OD Transmission Wiring Diagram - Solenoids, PCM Pins (30-2)
  This is page 30-2 of a 1995 Ford Bronco electrical/vacuum troubleshooting manual showing the complete wiring schematic for the E4OD automatic transmission control circuit. It shows power feeds from the engine…
• 1990 Ford Bronco E4OD Transmission Wiring Schematic - EEC Pins & Wire Colors
  This is a scanned factory wiring schematic page (30-2) for the Ford E4OD electronically controlled automatic transmission on gasoline engines, uploaded as applying to a 1990 Ford Bronco. The diagram shows the circuit…
• 1995 Ford Bronco E4OD Transmission Connector C1048 Pinout & Wire Colors
  This document is page 30-3 of a Ford wiring reference covering the E4OD automatic transmission in the 1995 Ford Bronco. It shows the 12-pin transmission connector, identified as C1048 (gray), with a face-view diagram…
• Ford E4OD Transmission Connector Pinout Diagram - Pin & Wire Color Chart
  This document is a pinout diagram and legend for the E4OD automatic transmission 12-pin harness connector, uploaded to a 1990 Ford Bronco gallery. The top portion shows a drawing of the connector face with pin…
• 1990 Ford Bronco Horn & Cigar Lighter Wiring Diagram 44-1 (With/Without Cruise)
  This is page 44-1, "Horn/Cigar Lighter," from a Ford wiring diagram manual, uploaded as applying to a 1990 Ford Bronco. It shows two side-by-side wiring schematics: one for vehicles WITH speed control and one WITHOUT…
• 1990 Ford Bronco 5.0L Grounds G103 Wiring Diagram - EEC & HEGO Ground Circuit
  This is page 10-8 of a Ford factory wiring diagram set, showing the "GROUNDS (G103)" circuit for the 5.0L engine. The diagram traces the ground path for circuit 89 (orange wire) from three sources: the Electronic…
• Trailer Wiring Color Code Chart - 4, 5, 6 & 7-Way Connector Wire Colors & Gauges
  This document is a trailer wiring color code reference chart covering 4-way, 5-way, 6-way, and 7-way trailer connectors. For each circuit function it lists the standard wire color, the suggested minimum wire gauge…
• 4-Pin Flat Trailer Wiring Diagram - Wire Color Codes & Light Functions
  This document is a wiring schematic for a standard 4-pin (4-way flat) trailer wiring harness, showing a top-down view of a trailer frame with the wire routing and lamp locations. The diagram identifies the function of…
• Ford E4OD Test Harness T89T-70100-A Terminal Locations & Wire Color Codes
  This is a scanned page (17-09-35) from a Ford service manual section titled "Transmission: Automatic E4OD, CONDITION/CAUSE (Continued)." It illustrates the E4OD Test Harness, Ford tool number T89T-70100-A, used for…
• Ford PMGR Starter Wiring Diagram - Relay, Solenoid & Cable Gauge Instructions
  This document is a labeled wiring illustration titled 'Ford (PMGR) Starter Wiring Instructions,' showing how to wire a Ford PMGR (Permanent Magnet Gear Reduction) starter motor. The diagram depicts a fender-mounted…
• Ford Mini Starter (PMGR) Relay Wiring Diagram - 5-Pin Relay, 20A Fuse, Wire Gauges
  This document is a color wiring diagram showing how to wire a starter using a standard 5-pin Bosch-style relay (labeled "Starter Relay") in place of, or in conjunction with, the original starter circuit. The diagram…
• 1986-95 Ford V8 Truck Speed Density EFI Wiring Schematic - EEC-IV Pinout
  This document is a color-coded EFI wiring schematic for 1986-95 Ford speed-density V8 trucks, produced by RJM Injection Technologies (fordfuelinjection.com, copyright 2004). It shows the EEC-IV engine control system's…
• Ford EFI Wiring Diagram - EEC-IV Engine Control Module Pinout & Sensors
  This document is a full-page EFI (electronic fuel injection) wiring schematic centered on the Ford EEC electronic engine control module. It shows the module's numbered connector pins (top row pins such as 1, 57, 37, 4…
• 1995 Ford Bronco Engine Compartment Component Location Diagram (FCS-12129-95)
  This document is a component location view (page 2 of 7) from the Ford factory electrical/vacuum troubleshooting manual FCS-12129-95 for the Bronco. It presents an overhead line drawing of the engine compartment with a…
• 1995 Ford Bronco Engine Compartment Component Locations - Connectors & Grounds
  This is page 2 of 7 from the Ford Bronco component location views section (document number FCS-12129-95), showing an overhead line-drawing of the engine compartment with callout labels identifying electrical…
• 1995 Ford Bronco Ignition System Wiring Diagram - Page 21-1 (TFI, ICM, Coil)
  This document is page 21-1, "Ignition System," from a Ford Bronco wiring diagram manual (uploaded as part of a 1995 Bronco diagram set). It shows the complete ignition system schematic, including the Powertrain Control…
• 1995 Ford Bronco 5.8L California Fuel Pump Wiring Diagram - Page 25-12
  This is page 25-12 of a Ford factory wiring diagram set, titled "Engine Controls, 5.8L (California)". It shows the fuel pump module circuit for the 5.8L California-emissions engine. Power comes from connector C202…
• Ford Bronco 5.8L California Engine Controls Wiring Diagram - MIL & O2 Sensor 25-11
  This is page 25-11 of a Ford factory wiring diagram set covering Engine Controls for the 5.8L (California emissions) engine. It shows the circuits for the Malfunction Indicator Lamp (MIL) and the LH Heated Oxygen…
• 1995 Ford Bronco 5.8L California Engine Controls Wiring Diagram - EGR, TP, ECT
  This document is page 25-9 of a Ford factory wiring diagram set, covering Engine Controls for the 5.8L engine (California emissions calibration). It shows the wiring between the Powertrain Control Module (PCM) and four…
• 1995 Ford Bronco 5.8L California Engine Controls Wiring Diagram - Page 25-8
  This page is sheet 25-8 of a Ford Bronco factory wiring diagram set, covering the Engine Controls circuit for the 5.8L (California emissions) engine. It shows the switched 12V power feed (circuit 361, red wire…
• 1995 Ford Bronco 5.8L California Engine Controls Wiring Diagram (Pg 25-7)
  This document is page 25-7 of a Ford factory wiring diagram set, covering Engine Controls for the 5.8L engine (California emissions). It shows the power distribution and control wiring for the Powertrain Control Module…
• 1995 Ford Bronco 5.8L Fuel Pump Wiring Diagram - Engine Controls Page 25-6
  This document is page 25-6 of a Ford wiring diagram set, covering the Engine Controls for the 5.8L engine, specifically the fuel pump circuit. Power arrives on circuit 238 (DG/Y wire) from connector C202 (referenced to…
• 1995 Ford Bronco 5.8L Engine Controls Wiring Diagram - MIL & CPP Switch (Pg 25-5)
  This document is page 25-5 of the Engine Controls wiring diagram set for the 5.8L engine (from a 1995 Ford Bronco electrical/vacuum troubleshooting manual, per companion pages in the set). It shows the Malfunction…
• 1995 Ford Bronco 5.8L Engine Controls Wiring Diagram - MAP & O2 Sensor (25-4)
  This is page 25-4 of the Engine Controls wiring diagram section for a Ford Bronco with the 5.8L engine (part of a 1995 Bronco wiring diagram set). The schematic covers two engine-control sensors: the Manifold Absolute…
• 1995 Ford Bronco 5.8L Engine Controls Wiring Diagram - ECT IAT TP EVP Sensors
  This document is page 25-3 of a Ford factory wiring diagram set covering Engine Controls for the 5.8L engine (part of a 1995 Bronco manual set). It shows the sensor circuits feeding the Powertrain Control Module (PCM)…
• 1995 Ford Bronco 5.8L Engine Controls Wiring Diagram - PCM, Injectors, IAC (25-2)
  This document is page 25-2 of a Ford factory wiring diagram set covering Engine Controls for the 5.8L engine, part of a multi-page 1995 Bronco electrical schematic collection. It shows the PCM-controlled output…
• 1995 Ford Bronco 5.8L Engine Controls Wiring Diagram - PCM & Fuel Pump Relay 25-1
  This document is page 25-1 of a Ford factory-style wiring diagram set covering the Engine Controls circuit for the 5.8L engine (part of a 1995 Bronco wiring diagram album). It shows power distribution from the engine…
• 1995 Ford Bronco E4OD Transmission Wiring Diagram - PCM & Solenoids (Pg 30-2)
  This is page 30-2 of a Ford factory-style wiring diagram covering the E4OD automatic transmission electrical circuit, uploaded as part of a 1995 Bronco wiring diagram set. It shows power distribution from the engine…
• 1995 Ford Bronco E4OD Transmission Wiring Diagram (EVTM Page 30-1)
  This is page 30-1 of the 1995 Ford Bronco Electrical and Vacuum Troubleshooting Manual (EVTM), covering the E4OD automatic transmission wiring. The diagram shows power feeds from the fuse panel, fuse 13 (15A, hot at…
• 1989 Ford Bronco Start/Ignition Wiring Diagram 5.0L 5.8L 7.5L - TFI & Coil
  This is page 28 of a Ford factory-style wiring diagram set covering the START/IGNITION system for 5.0L, 5.8L, and 7.5L gasoline engines. The diagram traces power from Fuse Link M (18 GA brown) through connector C100…
• 1989 Ford Bronco & F-Series Electric Fuel Pump Wiring Diagram (Single Tank) Pg 92
  This is page 92 of a Ford factory wiring diagram manual (EVTM-style) covering the Electric Fuel Pump Control circuit for single fuel tank configurations, with separate side-by-side diagrams for the Bronco and F-Series…
• 1989 Ford Bronco EEC Wiring Diagram Pg 43 - EFI 5.0L 5.8L 7.5L Test Connectors
  This is page 43 of a Ford factory-style wiring diagram set covering the Electronic Engine Control (EEC) system for EFI 5.0L, 5.8L, and 7.5L engines. The diagram shows several circuits connecting to the EEC module…
• 1989 Ford Bronco EEC Wiring Diagram Pg 42 - EFI 5.0L 5.8L 7.5L Injectors & Sensors
  This is page 42 of a Ford wiring diagram set covering the Electronic Engine Control (EEC) system for EFI 5.0L, 5.8L, and 7.5L engines. The upper portion of the schematic shows power distribution from splice S140 on…
• 1989 Ford Bronco EEC Wiring Diagram Pg 41 - EFI 5.0L 5.8L 7.5L Solenoids & HEGO
  This is page 41 of a Ford factory wiring diagram set covering the Electronic Engine Control (EEC) system for EFI 5.0L, 5.8L, and 7.5L engines. The diagram traces power circuit 361 (Red) from splice S154 through…
• 1989 Ford Bronco EEC Wiring Diagram Pg 40 - EEC & Fuel Pump Relay Power (EFI)
  This is page 40 of a Ford factory-style wiring diagram set, covering the Electronic Engine Control (EEC) power distribution for EFI 5.0L, 5.8L, and 7.5L engines. The diagram shows how the EEC Power Relay and Fuel Pump…
• 1989 Ford Bronco E4OD Transmission Wiring Diagram - EEC Module Pins (Pg 44)
  This is page 44 of a Ford factory-style wiring diagram set, titled "Electronic Engine Control (EFI 5.0L, 5.8L, 7.5L)," covering the E4OD automatic transmission electrical circuits as they connect to the Electronic…
• Ford Duraspark II & TFI Ignition System Wiring Diagrams - EEC-IV PIP/SPOUT
  This page (23-01-2, "General Ignition Service") from a Ford service manual presents two labeled ignition system diagrams. Figure 1 illustrates the Duraspark II ignition system, identifying the ignition switch (with…
• 1992-96 Ford Sealed-Bowl TFI Distributor Diagram & Ignition Wiring Schematics
  This document is a multi-panel Ford reference sheet covering the 1992-1996 sealed-bowl (closed-bowl) TFI/CCD distributor and its ignition wiring. The top-left panel shows exploded assembled and disassembled views of…
• Ford 5.0L/5.8L TFI Ignition System Wiring Diagram - EVTM Page 21-2 (Bronco)
  This is a scanned page (21-2, Ignition System) from a Ford Electrical & Vacuum Troubleshooting Manual (EVTM) showing the ignition system wiring diagram for 5.0L and 5.8L engines. The diagram traces power from the…
• Ford TFI Module Connector Pinout - 4.9L 5.0L 5.8L 7.5L Wiring & Relay Diagrams
  This is page 150-19, 'Connector Faces/Pinout Charts,' from a Ford wiring reference manual, showing four connector face diagrams with circuit numbers and wire color codes. Two diagrams cover the TFI (Thick Film…
• Flex-a-lite Variable Speed Fan Controller Wiring Diagram & Instructions (99295)
  This document is page 2 of a Flex-a-lite variable speed electric fan controller instruction sheet (rev. 11-06-06, document 99295), scanned from a printed installation guide. It explains the Variable Speed Control's…
• Ford Bronco Trailer Option Wiring Diagram - Trailer Package Circuits (Page 108)
  This is page 108, titled "TRAILER OPTION," from a Ford factory electrical/vacuum troubleshooting manual (EVTM-style wiring diagram book). It shows the trailer towing package wiring schematic. Two circuits are fed "HOT…
• Ford Bronco Alternator Wiring Diagram - Solenoid, Idiot Light & Battery Hookup
  This is a simple hand-drawn (computer-drawn) wiring diagram showing how to wire an alternator, uploaded to a 1990 Ford Bronco gallery. It depicts three components: a solenoid (brown circle with three terminals), an…
• 1987-1996 Ford Bronco Tailgate Power Window Wiring Diagram - Wire Colors
  This document is a hand-drawn wiring diagram titled "87-96 Ford Bronco tailgate window power wiring diagram," credited to Ed Huggler II. It illustrates the electrical circuit for the power tailgate window on 1987-1996…
• 1987-1996 Ford Bronco Tailgate Power Window Wiring Diagram
  This is a hand-drawn/computer-drawn wiring diagram titled "87-96 Ford Bronco tailgate window power wiring diagram," credited to Ed Huggler II. It illustrates the power tailgate window circuit for 1987-1996 Ford…
• Hand-Drawn Auxiliary Light Relay Wiring Diagram - 1991 Ford Bronco Off-Road Lights
  This document is a hand-drawn wiring diagram, sketched in ink on lined notebook paper, showing how to wire a pair of auxiliary lights (such as off-road, fog, or driving lights) using a relay, two fuses, a toggle…
• Ford Bronco Auxiliary Reverse Lamps Relay Wiring Diagram - Tap Methods A & B
  This document is a simple hand-drawn wiring diagram, apparently for adding or wiring auxiliary reverse lamps, uploaded to the gallery of a 1987 Ford Bronco. The top portion shows a relay (drawn as a black square) with…
• Relay Wiring Diagram for Auxiliary/Reverse Lamps - 12V Switched Power Setup
  This document is a simple hand-drawn style wiring diagram (uploaded as "lamp.jpg") showing how to wire auxiliary lamps using a relay. A black square in the center represents the relay. Power input is a red wire labeled…
• Ford Bronco 5.0L EEC-IV Engine Control Wiring Diagram - EFI, Sensors & Pinout
  This document is a Ford EEC-IV (Electronic Engine Control) wiring schematic for a fuel-injected V8 (eight fuel injectors shown), uploaded to a 1988 Ford Bronco gallery. It maps every circuit into and out of the…
• Auxiliary light wiring diagram with a 30 amp relay on terminals 30, 85, 86 and 87, 25 amp fuse, keyed +12v feed with 5-10 amp inline fuse and 55W lamps.
• Fog/Driving Light Relay Wiring Diagram - 55W Aux Lights, Relay Pins 30/85/86/87
  This document is a hand-drawn digital wiring diagram showing how to wire aftermarket fog, driving, or auxiliary lights (rated 55 watts each) using a standard automotive relay. The relay is depicted with four terminals…
• Ford Bronco Tailgate Power Window Wiring Diagram - Switch, Motor & Fuses
  This is a hand-drawn/simplified wiring diagram (credited "by FireGuy50") for a Ford Bronco tailgate power window circuit, uploaded to a 1988 Bronco gallery. It shows two power feeds from the fuse panel: fuse position…
• Wiring diagram of the powertrain control module showing injectors 1-8, ignition control module, fuel pump relay, sensors and 4R70W/E40D transmission links.
• Rock Lights Relay Wiring Diagram - Dome Light Auto/Manual Switch, 20A Fuse
  This is a hand-drawn wiring diagram (watermarked "Adrianspeeder") for adding rock lights to a vehicle, uploaded to a 1988 Ford Bronco gallery. It shows a double pole single throw switch with three positions: Automatic…
• Ford Bronco Auxiliary Backup Lights Relay Wiring Diagram with Override Switch
  This document is a hand-drawn (CAD-style) wiring diagram showing how to add auxiliary (new) backup lights to a vehicle using a standard 4-pin automotive relay, uploaded to the gallery of a 1988 Ford Bronco. The diagram…
• MegaSquirt V3.0 Main Board External Wiring Diagram - Pinout, Relays & Fuses
  This document is the external wiring diagram for the MegaSquirt V3.0 Main Board, an aftermarket electronic fuel injection controller by Bowling and Grippo (©2006). It shows the 37-pin main connector (pins 1-19 on the…
• Ford Bronco Headlight & Driving Lights Relay Wiring Diagram (Adrianspeeder)
  This is a hand-drawn (CAD-style) automotive lighting wiring diagram credited to "Adrianspeeder," uploaded to a 1988 Ford Bronco gallery. It shows how to wire three standard relays, a Driving Lights Relay, a High Beams…
• Hand-drawn diagram of battery, relay and starter wiring before and after adding a starter solenoid, with the switch wire on its small terminal.
• 1988 Ford Bronco Power Door Lock Wiring Diagram - Switches, Motors & 30A Breaker
  This document is a wiring diagram for a power door lock system, uploaded as applying to a 1988 Ford Bronco. It shows power supplied from a source that is HOT AT ALL TIMES through a 30-amp inline circuit breaker on…
• Fog Light Relay Wiring Diagram - SPST Toggle, 20A Fuse, 12V (Ford Bronco)
  This document is a simple hand-drawn/computer-drawn wiring diagram (watermarked "Adrianspeeder") showing how to wire auxiliary fog or driving lights using a standard 4-pin automotive relay. A SPST toggle switch…
• Ford Bronco Air Horn Compressor Relay Wiring Diagram - Pins 85/86/30/87, 20A Fuse
  This document is a hand-drawn wiring diagram (watermarked "Adrianspeeder") showing how to wire an aftermarket air horn compressor to a standard 4-pin automotive relay, uploaded to the gallery of a 1988 Ford Bronco as…
• Ford Bronco Fuse Block Wiring Diagram - Fuse Ratings, Blower & Defog Circuits
  This is a photographed page from a Ford factory-style wiring diagram showing the fuse block and associated power distribution circuits, uploaded to a 1988 Ford Bronco gallery as part of a blower motor documentation…
• 1988 Ford Bronco Blower Motor Wiring Diagram - Fan Switch & Resistor Wire Colors
  This is a scanned portion of a factory-style wiring diagram for the blower motor / HVAC blower circuit, uploaded to a 1988 Ford Bronco gallery. It shows the blower motor fed by a BRN-ORG wire (routed through 'FUSE #9')…
• Rock Lights Wiring Diagram - Relay, DPST Switch, 20A Fuse (Ford Bronco Mod)
  This document is a hand-drawn style wiring diagram (credited to "Adrianspeeder") showing how to wire aftermarket rock lights using a standard automotive relay and a double pole single throw switch with three positions…
• Ford Bronco Auxiliary Backup Lights Relay Wiring Diagram with Manual Override
  This document is a hand-drawn/CAD-style wiring diagram (credited to 'Adrianspeeder', hosted on SuperMotors.net) showing how to add auxiliary backup lights to a vehicle using a relay with a manual override switch. The…
• Auxiliary Backup Lights Relay Wiring Diagram with Manual Override - Ford Bronco
  This document is a hand-drawn (CAD-style) wiring diagram, watermarked "Adrianspeeder," showing how to add auxiliary (new) backup lights to a vehicle using a standard 4-pin automotive relay, uploaded to a 1988 Ford…
• Wiring diagram excerpt showing the fuel gauge sender YEL-WHT and BLK-WHT circuits via C200 pin 24, the left power window motor and BLK-PNK back-up lamp.
• Fig. 6 instrument panel wiring diagram from 1989 Ford Aerostar wiring diagrams, covering electronic and standard instrument cluster circuits.
• Ford Bronco Headlight Relay Wiring Diagram - Low/High Beam Relay Upgrade Schematic
  This document is a hand-drawn (CAD-style) headlight relay wiring schematic uploaded to a 1988 Ford Bronco gallery. It shows how to wire two relays, a LowBeamRelay and a HighBeamRelay, to power the headlamps directly…
• Ford Bronco Ignition Switch & Starter Relay Wiring Diagram - Wire Colors, C100
  This document is a screen capture (Adobe Reader 7.0) of one page of a Ford truck ignition switch and starting-circuit wiring diagram, spanning schematic grid columns 16-18, rows A-B. It shows the starter relay and…
• Baumann TCS E4OD Transmission Controller Wiring Diagram - Ford Pinout
  This document is a wiring diagram for the Baumann TCS (Transmission Control System), an aftermarket standalone controller used with Ford E4OD automatic transmissions. It shows all 25-pin connector assignments of the…
• Ford Bronco/F-Series 1992-96 Power Mirror Wiring Diagram - Switch & Wire Colors
  This document is a wiring diagram for a Ford power mirror system, uploaded as applicable to 1992-96 vehicles (per the filename) and filed under a 1990 Ford Bronco. It shows the internal switching logic of the power…
• 1991 Ford Bronco Speaker Wiring Sketch - R/L Channel to Dual Speakers Diagram
  This document is a simple hand-drawn (computer-sketched) speaker wiring diagram, apparently showing how to wire two round speakers to a two-channel audio source or amplifier. The rectangular box at the top represents…
• Amp to Dual Subwoofer Wiring Sketch - Daisy-Chained Subs Diagram
  This is a simple, hand-drawn (MS Paint-style) diagram illustrating how to wire two subwoofers to a single amplifier. The diagram shows a rectangle labeled "AMP" with right and left channel markings ("R L") and polarity…
• Ford Bronco Tailgate Power Window Wiring Diagram - Switches, Latch & Motor
  This is a wiring diagram for a Ford Bronco tailgate power window circuit, credited to community member FireGuy50. It shows two power feeds from the fuse panel: fuse position 14, a 20A circuit breaker that is hot in ACC…
• York Compressor Onboard Air Wiring Diagram - Relay, Pressure Switch & 10A Fuse
  This document is a simple hand-drawn (computer-drafted) wiring diagram showing how to wire an air compressor (labeled 'comp') to a vehicle's 12-volt electrical system using a standard automotive relay. The battery…
• Owner-made chart of Ford truck circuits by number, wire color and function, such as 262 brown pink starter motor relay and 517 black white 4x4 electric shift.
• Ford Bronco Turn Signal, Stop & Hazard Lights Wiring Diagram (Page 48)
  This document is page 48 of a Ford factory-style electrical wiring diagram covering the Turn, Stop, and Hazard light circuits for the Bronco. It shows power feeds from the fuse block (page 15): a 15A 'Hot in Run' fuse…
• Two-relay horn circuit on constant 12v where a single pole double throw switch picks which relay the horn switch grounds: air horns or stock horns.
• 1990 Ford Bronco Alarm Relay Wiring Diagram - Dome Light Black/Blue Wire
  This document is a simple hand-made wiring diagram showing how to connect a standard 5-pin automotive relay (pins 30, 85, 86, 87, and 87a) for an aftermarket alarm installation. The diagram shows the relay outline with…
• Starting, Charging & Ignition Wiring Diagram 1986-90 4-Cyl & 4.0L Inline Six
  This is a scanned page (12-17) from Chapter 12, 'Chassis electrical system,' of a repair manual, showing two starting, charging and ignition system wiring diagrams. The left diagram covers 1986 through 1990…
• Car Audio Capacitor Wiring Diagram - Battery to Cap to Amp with Chassis Ground
  This is a simple hand-drawn (computer-sketched) wiring diagram showing how to install a stiffening capacitor in a car audio amplifier system. Three components are depicted as labeled boxes: BATT (battery), CAP…
• ARB single Air Locker system wiring, Figure 26: switch 1 terminals wired to dash illumination, ground, ignition or isolating switch and solenoid 1.
• ARB dual Air Locker wiring, Figure 27: switches 1 and 2 wired to dash illumination, ground, ignition or isolating switch and solenoids 1 and 2.
• ARB air compressor wiring loom, Figure 24, showing switch 1 and 2 wiring, plug-in relay, compressor motor, solenoids 1 and 2, 30 amp fuse and 12V battery.
• Ford RABS Module Harness Connector Pin View Diagram - Pins 1 & 9 (1990 Bronco)
  This document is a pin-view diagram of a 14-pin module harness connector, uploaded as part of a Rear Anti-lock Brake System (RABS) reference set for a 1990 Ford Bronco. The illustration shows the connector face as…
• Ford ECT Engine Coolant Temperature Sensor Connector Pinout Diagram
  This document is a simple pinout/connector diagram for a Ford Engine Coolant Temperature (ECT) sensor. It shows a face-on illustration of the two-pin sensor connector, with leader lines identifying the two terminals…
• Ford ISC-BPA Idle Air Bypass Solenoid Connector Pinout - ISC (-) & VPWR (+)
  This document is a simple connector pinout diagram labeled "ISC-BPA" (Idle Speed Control - Bypass Air). It shows the face view of a two-pin electrical connector for the ISC-BPA solenoid, with the two terminals…
• Ford EEC-IV SD to MAF Computer Pin-Out Chart: Pins 49-60 (1990-1995)
  This document is a page from an EEC (engine computer) pin-out comparison chart, apparently part of a multi-page 'Speed Density (SD) to MAF Computer Pin-Out List' set. It shows computer connector pins 49 through 60…
• Ford EEC-IV SD to MAF Computer Pin-Out Chart: Pins 22-48 (1990 Bronco)
  This document is one page of a multi-page Ford EEC-IV computer (ECM/PCM) pin-out comparison chart, covering connector pins 22 through 48 across six different computer/calibration configurations (the column headers…
• Speed density to MAF EEC pin-out chart comparing 1988-1995 5.0L and 5.8L Truck, Van, Bronco and Mustang A9L/A9P computers, pins 1 through 21.
• Ford EGR Valve Position Sensor (EVP) Connector Pinout Diagram - 1990 Bronco
  This document is a connector pinout diagram for the Ford EGR Valve Position Sensor (EVP). It shows the sensor's round three-pin electrical connector as viewed at the connector face, with each pin identified by a…
• 1989-95 Ford MAF Sensor Connector Pinout Diagram - Pins A-D Wiring
  This document is a pinout diagram for the electrical connector on the 1989-95 Ford Mass Air Flow (MAF) sensor. The drawing shows the oval sensor connector face with four labeled terminals in a row, identified as pins…
• Truck computer pin-outs for 1987-1995 302/351 Truck, Van and Bronco, speed density vs mass air, pins 1-22 plus E4OD additions.
• Ford MAP Sensor Connector Pinout Diagram - VOLT REF, MAP, SIG RTN
  This document is a simple line-art diagram of a Ford Manifold Absolute Pressure (MAP) sensor, shown from the connector face. The sensor body is drawn with its two mounting ears/brackets and a keyed three-pin electrical…
• 1995 Ford Bronco Anti-Theft Module Connector Pinout C237 C238 (Page 112-4)
  This document is page 112-4 of the 1995 Ford Bronco factory electrical/wiring reference, covering the Anti-Theft system. It shows connector face views for the two Anti-Theft Controller Module connectors, C237 (pins 1-7…
• 3-Position Switch Wiring Diagram - Auto/Off/On with Red & Green Indicator Lights
  This document is a simple hand-drawn wiring diagram for a three-position toggle switch, showing how to wire indicator lights. The left side of the diagram shows the three switch positions: 'Auto' (up), 'Off' (center)…
• 110V/220V Split-Phase Wiring Diagram - Black, White & Red Wire Voltages
  This document is a simple color diagram illustrating the voltage relationships in a split-phase electrical system using three conductors. Three horizontal bars represent the wires: a black bar labeled "110+ Black" at…
• Tag for U.S. General item 47394 5" halogen H3 12V off road light with a wiring diagram through a 15 amp fuse and switch to the battery.
• Pinout table routing a 25-pin connector to M/W Lightning EEC-IV pins, including VSS+ to 3, EPC to 38, TCC to 42, PIP to 56 and MLPS to 30.
• Ford EEC-IV to MegaSquirt Piggyback Wiring Diagram - Adaptor Board Layout
  This document is a hand-drawn block diagram illustrating how to connect a MegaSquirt aftermarket engine management system in a 'piggyback' arrangement alongside a stock Ford EEC-IV engine computer. The diagram shows…
• Electric Fan Relay Wiring Diagram Sketch - 1991 Ford Bronco (On/Off/Auto Switch)
  This is a hand-drawn wiring diagram sketched in ink on lined notebook paper, uploaded to the gallery of a 1991 Ford Bronco. It illustrates a proposed electric cooling fan control circuit. The fan (drawn at upper left)…