What fuse powers the A/C clutch circuit on a 1994 Bronco/F-Series?

Fuse 6, a 15A fuse in the fuse panel, hot in ACC or RUN, feeding circuit 182 BR/W (see Power Distribution page 13-19).

At what pressures does the A/C clutch cycling pressure switch operate?

It is normally open at or below 169 kPa (24.5 psi) and closed at or above 293 kPa (43.5 psi).

What are the operating pressures of the A/C high pressure cut out switch?

It is normally open at or above 445 ±15 psi and normally closed at or below 260 ±30 psi.

What wire colors and circuit numbers feed the A/C clutch field coil?

Circuit 883 PK/LB runs to splice S127, then circuit 321 GY/W through connector C163 to the A/C clutch field coil; ground is circuit 57 BK through C101.

Does the PCM control the A/C clutch on this circuit for the Bronco?

The diagram notes the PCM connection (pins 43 and 10 via C185, circuit 883 PK/LB) is 'NOT USED WITH BRONCO, LIGHTNING OR W/E4OD & 4R70W'.

Home/ Registry/ Ford/ Bronco/ 1992-1996/ 1994 Ford Bronco/ Photo supermotors.net/registry/media/91386

1994 Ford Bronco/F-Series A/C Clutch Wiring Diagram - Cycling & Cutout Switches

1994 Ford Bronco/F-Series gasoline A/C-heater control assembly and A/C clutch wiring diagram

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1994 Bronco/F-Series gasoline A/C-heater control wiring diagram showing the control assembly, A/C cycling and high-pressure cut-out switches, and A/C clutch field coil with pressure thresholds.

AI caption October 2003 · Photo 23 of 68

This is a page from a 1994 Ford Bronco/F-Series (gasoline) wiring diagram covering the A/C compressor clutch control circuit. Power originates at fuse 6 (15A) in the fuse panel, hot in ACC or RUN, feeding circuit 182 BR/W to the A/C-Heater Control Assembly (mode positions OFF, MAX, A/C NORM, VENT, FLOOR, FLR/DEF, DEFROST). From the switch, circuit 348 P routes through connectors C296, C203, splice S153, and C162 to the A/C Clutch Cycling Pressure Switch (opens at/below 169 kPa / 24.5 psi, closes at/above 293 kPa / 43.5 psi), then via circuit 347 BK/Y to the A/C High Pressure Cut Out Switch (normally open at or above 445 ±15 psi, closed at/below 260 ±30 psi). Circuit 883 PK/LB connects the Powertrain Control Module (pins 43 and 10, though noted as "NOT USED WITH BRONCO, LIGHTNING OR W/E4OD & 4R70W") and continues via splice S127 and circuit 321 GY/W to the A/C Clutch Diode and A/C Clutch Field Coil. Grounds run via circuit 57 BK through C101, with circuit 398 BK/Y to the Instrument Cluster. Cross-references include Power Distribution page 13-19, switch testing page 149-7, PCM pages 23-5/24-7/25-5/26-4, and grounds page 10-5.

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Frequently asked questions

What fuse powers the A/C clutch circuit on a 1994 Bronco/F-Series?: Fuse 6, a 15A fuse in the fuse panel, hot in ACC or RUN, feeding circuit 182 BR/W (see Power Distribution page 13-19).
At what pressures does the A/C clutch cycling pressure switch operate?: It is normally open at or below 169 kPa (24.5 psi) and closed at or above 293 kPa (43.5 psi).
What are the operating pressures of the A/C high pressure cut out switch?: It is normally open at or above 445 ±15 psi and normally closed at or below 260 ±30 psi.
What wire colors and circuit numbers feed the A/C clutch field coil?: Circuit 883 PK/LB runs to splice S127, then circuit 321 GY/W through connector C163 to the A/C clutch field coil; ground is circuit 57 BK through C101.
Does the PCM control the A/C clutch on this circuit for the Bronco?: The diagram notes the PCM connection (pins 43 and 10 via C185, circuit 883 PK/LB) is 'NOT USED WITH BRONCO, LIGHTNING OR W/E4OD & 4R70W'.