Testing low and high speed cooling fan relays. Hayden flex a lite or perma cool brands can provide a 12 volt output when activated.
How To Properly Wire Electric Cooling Fans
Cooling fan relay wiring diagram. You will then need switched power usually from your ignition switch wired to the blue wires on the relays. It uses a 40 amp electric relay and electric fan sensor. Get the 10 gauge wire and place it through the hole in your fire wall. To switch a relay on the two smaller wires make the connection from hot to ground. How to wire a relay for a radiator fan by don bowman. Relays shown in these diagrams can provide options.
Then connect switched power usually from your ignition switch to the blue wires on both relays tab 86. The 12 volts comes from an ignition source the negative connection comes. Start with taking both of the positive wires from the fans and run it to the yellow wires on each relay. Variety of hvac fan relay wiring diagram. We include instructions for a single fan and a dual fan using one or two relays in every relay kit we sell. Suggested electric fan wiring diagrams suggested primary cooling fan single speed onoff using 12 volt switching devices only for primary activation note.
When installing an auxiliary fan or simply wiring the factory fan so that the driver can manually turn the fan on and off make sure the fan is turning in the right direction. After all we want to help you get back on the road as much as you want to. Most stand alone adjustable thermostats ie. Here youll also be exposed to the current path voltage and sensor signal. If the fan is not turning in the right direction air will be blown away from the radiator and will not help to. A wiring diagram is a simplified standard photographic depiction of an electrical circuit.
Cooling fans are now controlled by the ecm through the respective module network and using duty cycle control signals. This will be the wire that connects your switch to your fan power wire. It reveals the parts of the circuit as streamlined shapes and the power as well as signal connections between the devices. Or a single relay could be used to control both fans. Next splice together both black wires. The cooling fan wiring diagram below is what weve found to be the simplest and most reliable method.
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. The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan. The color coded diagram below will correspond with the wires on the relay kit to help simplify the wiring process. Now take the power wire from your fan and connect it to the wire that is going through the firewall. So now we have a wire that goes through the engine bay to the cabin of your car. 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.
Gallery of Cooling Fan Relay Wiring Diagram
