What fuse powers the manual A/C-heater system?

Fuse 9, a 30A fuse in the fuse panel that is hot in run, feeding circuit 182 BR/W (fuse panel details on pages 12-3 and 12-5).

What wire color feeds the blower motor?

Circuit 181 BR/O (brown/orange) feeds the blower motor from the A/C-heater function selector switch; circuit 261 O/BK runs from the blower motor to the resistor and blower switch.

Which engines have the A/C wire connected to the EEC module?

The 348 LG/P wire is connected to the EEC module only with the 4.9L engine; it is taped back with all other gas engines (5.0L, 5.8L & 7.5L, where connector C104 is not used).

What circuit runs from the A/C clutch cycling pressure switch to the clutch?

Circuit 347 BK/Y (black/yellow) runs from the A/C clutch cycling pressure switch through connectors C104 and C106 to the A/C clutch resistor diode and A/C clutch field coil.

What positions does the A/C-heater function selector switch have?

OFF, MAX, A/C NORM, VENT, FLOOR, MIX, and DEFROST. Switch terminal details are on page 149-7.

Home/ Registry/ Ford/ Bronco/ 1987-1991/ “Eddie Bauer”/ Photo supermotors.net/registry/media/943188

1990 Ford Bronco Manual A/C-Heater Wiring Diagram 54-2 - Blower & AC Clutch

1995 Ford Bronco Manual A/C-Heater Wiring Diagram (page 54-2), gasoline engines

‹ ›

Reference · 1987-1991 BroncoAll 175 wiring diagrams

Ford MAF Sensor Connector Pinout & Electrical Test Chart - Wire Colors

1988-93 Ford Mustang Mass Air EEC-IV Wiring Diagram - Sensor & Injector Pinout

1995 Ford Bronco A/C Heater Wiring Diagram - Clutch Cycling Switch Circuit 54-3

1990 Ford Bronco Manual A/C-Heater Wiring Diagram 54-2 - Blower & AC Clutch

1995 Ford Bronco 5.0L Engine Controls Wiring Diagram 24-1 - MAF & PCM Power

1995 Ford Bronco 5.0L Engine Controls Wiring Diagram (Page 24-1) - PCM & MAF

1990 Ford Bronco 5.0L/5.8L Start Ignition Wiring Diagram - TFI Module (20-4)

1990 Ford Bronco Instrument Cluster Wiring Diagram 60-2 (Gas, No Tachometer)

Ford 3G Alternator Wiring Diagram - Mega Fuse, Charge Lamp & Wire Colors

KC Driving Lights & LED Light Bar Relay Wiring Diagram - Ford Bronco Aux Lights

175wiring diagrams1987-1991 Ford Bronco More reference

Ford Thermactor Air Bypass Valve Cutaway Diagram - Port Identification

Schematic

Ford Canister Purge Regulator Valve (CANP 9C915) Test Procedure - Figure 11

Service procedure

Ford 5.8L important engine information decal with 10° BTDC timing check and ASF-32C plug

Spec plate

Ford 5.0L V8 PCV Valve & Hose Routing Diagram - 9A474, 6B890, 6A664

Exploded parts

Ford 5.0L/5.8L Air Throttle Body Assembly Diagram - Canister Purge Ports & TPS

Manual page

1990 Bronco Major Standard Equipment sheet with interior features and functional specs by trim

Brochure

Borgeson Steering Intermediate Shaft Measurement Diagram - U-Joint Length B & C

Blueprint

Ford Thermactor Combination Valve Diagram - Air Bypass/Control Ports Labeled

Vacuum routing

1990 Ford Bronco Fuse Panel Diagram: Fuse Positions, Amps & Circuits (11-2)

Fuse chart

Ford V8 Intake Manifold Bolt Tightening Sequence Diagram - Stud Locations

Torque spec

Manual A/C-heater electrical schematic for 1995 Ford Bronco gasoline trucks: blower motor resistor, thermal limiter, function selector switch and A/C clutch cycling pressure switch circuits with wire colors.

Part of 1987-1991 Ford Bronco Wiring Diagrams

AI caption September 2012 · Photo 1432 of 1787

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 12-3, 12-5), feeding via circuit 182 BR/W through splice S229 to the A/C-heater function selector switch (positions OFF, MAX, A/C NORM, VENT, FLOOR, MIX, DEFROST; switch terminals on page 149-7). One branch (181 BR/O) feeds the blower motor, then through circuit 261 O/BK to the blower motor resistor with thermal limiter and the blower switch (terminals on page 149-8), using circuits 754 LG/W and 752 Y/R, grounding via circuit 57 BK at G101 and G201. The other branch (348 LG/P) feeds the A/C clutch cycling pressure switch and, on 4.9L engines only, connects to the electronic engine control (EEC) module at pins 43 and 10 (taped back on 5.0L, 5.8L and 7.5L engines). Circuit 347 BK/Y runs through connectors C104 and C106 to the A/C clutch resistor diode and A/C clutch field coil, with circuit 398 BK/Y to the instrument cluster (page 60-1) and grounds at G100. Splices S152, S153, S202, S204 and connectors C145, C203 are identified.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What fuse powers the manual A/C-heater system?: Fuse 9, a 30A fuse in the fuse panel that is hot in run, feeding circuit 182 BR/W (fuse panel details on pages 12-3 and 12-5).
What wire color feeds the blower motor?: Circuit 181 BR/O (brown/orange) feeds the blower motor from the A/C-heater function selector switch; circuit 261 O/BK runs from the blower motor to the resistor and blower switch.
Which engines have the A/C wire connected to the EEC module?: The 348 LG/P wire is connected to the EEC module only with the 4.9L engine; it is taped back with all other gas engines (5.0L, 5.8L & 7.5L, where connector C104 is not used).
What circuit runs from the A/C clutch cycling pressure switch to the clutch?: Circuit 347 BK/Y (black/yellow) runs from the A/C clutch cycling pressure switch through connectors C104 and C106 to the A/C clutch resistor diode and A/C clutch field coil.
What positions does the A/C-heater function selector switch have?: OFF, MAX, A/C NORM, VENT, FLOOR, MIX, and DEFROST. Switch terminal details are on page 149-7.