Aftermarket Cooling Fan Relay Wiring Diagram

The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan.

Aftermarket cooling fan relay wiring diagram.

Get the 10 gauge wire and place it through the hole in your fire wall. Then connect switched power usually from your ignition switch to the blue wires on both relays tab 86. Now take the power wire from your fan and connect it to the wire that is going through the firewall. The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method.

30 other red wire needs constant 12 volt power from the battery. Likes to use two relays to power up one large electric cooling fan. Even though the iso relays are rated at 20 amps for this application experience has shown a large fan motor. Just an idea on how to wire up electric cooling fans for your vehicle cooling fans.

Relays shown in these diagrams can provide options. Electric fan relay wiring diagram wiring diagram is a simplified tolerable pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the capability and signal contacts between the devices. Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay tab 87.

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Start with taking both of the positive wires from the fans and run it to the yellow wires on each relay. You will then need switched power usually from your ignition switch wired to the blue wires on the relays. This will be the wire that connects your switch to your fan power wire. So now we have a wire that goes through the engine bay to the cabin of your car.

The color coded diagram below will correspond with the wires on the relay kit to help simplify the wiring process. A relay kit our part number ccfkrl will include everything you need to properly wire up your electric cooling fans with the exception of additional wiring needed to complete all of the circuits. Most stand alone adjustable thermostats i e.