What wire colors does the 2000 CV relay center use for the high speed fan relay?

Per the diagram legend: Pin 3/30 is RD/BK, Pin 5/87 is OG/LB, Pin 2/86 is LG/VT, and Pin 1/85 is RD.

What wire colors are used on the low speed fan relay?

Pin 30 is YE (yellow), 87 is YE/LB, 86 is RD/LB, and 85 is BK.

How does the auxiliary relay work with the A/C system in this diagram?

Current from pin 30 goes to 87A until the A/C high pressure switch (Grn/Orn wire) trips the relay coil; then current goes to pin 87.

What fuse and circuit protection is shown in this fan wiring diagram?

A 10 Amp fuse on the 12V+ constant line, a 50 Amp Maxi-Fuse from the battery, and a 30 amp circuit breaker in the relay circuit.

How should the low speed relay ground be wired?

The diagram says to ground the low speed relay to either a temp sensor, a switch, or both, using an ON/ON switch so low speed can be activated any time and still be auto shut down by high side activation.

Home/ Registry/ Ford/ Crown Victoria/ 1992-1997/ 1994 Ford Crown Victoria/ Photo supermotors.net/registry/media/822313

Ford Crown Victoria Electric Fan Relay Wiring Diagram - 2000 CV Relay Center

2000 Crown Victoria electric fan wiring with auxiliary relay and high/low speed relays

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Cooling-fan wiring diagram adding a 10A-fused auxiliary relay (30 to 87A) ahead of high/low fan relays; 50A maxi-fuse, 30A breaker, with 2000 CV relay pin wire colors.

AI caption September 2010 · Photo 19 of 20

This is a hand-drawn (computer-drawn) wiring diagram showing how to wire an electric cooling fan using a 2000 Crown Victoria (CV) relay center, uploaded to a 1994 Ford Crown Victoria gallery. It depicts a 12V battery feeding a 12V+ constant circuit through a 10 Amp fuse and a 50 Amp Maxi-Fuse, an auxiliary relay (pins 30, 85, 86, 87, 87A), a high speed relay, a low speed relay, and a 30 amp circuit breaker, all feeding an electric fan. The auxiliary relay is triggered by the A/C high pressure switch (Grn/Orn wire): current flows from pin 30 to 87A until the A/C switch trips the coil, then current goes to 87. A legend lists the 2000 CV relay center wire colors: High Speed Relay – Pin 3/30-RD/BK, Pin 5/87-OG/LB, Pin 2/86-LG/VT, Pin 1/85-RD; Low Speed Relay – 30-YE, 87-YE/LB, 86-RD/LB, 85-BK. Notes state the low speed relay ground can go to a temp sensor, a switch, or both (recommending an ON/ON switch so low speed can be activated any time while still auto shutting down on high-side activation), and that pins 85 and 86 are reversed for the relay control center's existing wires.

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Frequently asked questions

What wire colors does the 2000 CV relay center use for the high speed fan relay?: Per the diagram legend: Pin 3/30 is RD/BK, Pin 5/87 is OG/LB, Pin 2/86 is LG/VT, and Pin 1/85 is RD.
What wire colors are used on the low speed fan relay?: Pin 30 is YE (yellow), 87 is YE/LB, 86 is RD/LB, and 85 is BK.
How does the auxiliary relay work with the A/C system in this diagram?: Current from pin 30 goes to 87A until the A/C high pressure switch (Grn/Orn wire) trips the relay coil; then current goes to pin 87.
What fuse and circuit protection is shown in this fan wiring diagram?: A 10 Amp fuse on the 12V+ constant line, a 50 Amp Maxi-Fuse from the battery, and a 30 amp circuit breaker in the relay circuit.
How should the low speed relay ground be wired?: The diagram says to ground the low speed relay to either a temp sensor, a switch, or both, using an ON/ON switch so low speed can be activated any time and still be auto shut down by high side activation.