Electric Fan Relay Wiring Diagram - 21 Images

Get the 10 gauge wire and place it through the hole in your fire wall.

Electric fan relay wiring diagram. Any good ground to the frame will work. Most 16 inch or smaller fans can get by with a 40a to 50a relay for the high speed. For example dual thermostat switches or dual relays could be used to control each fan separately. The supplied diagram is both the most reliable and easiest method i ve found.

A larger fan such as the 18 inch ford taurus t bird lincoln mk viii fans should use a 70a or 80a relay. So now we have a wire that goes through the engine bay to the cabin of your car. This one is a schurz. If you are using 2 fans watching the fuse size relay and wiring capacity is even more important.

Now take the power wire from your fan and connect it to the wire that is going through the firewall. The other two wires on the relay are the meat and potatoes of the system with the yellow wire connecting to the battery along with the supplied fuse mounted within 12 inches of the battery. The orange wire on the relay should see a 12 volt signal when the ignition switch is turned on. Electric fan relay wiring diagram by saum hadi posted on august 17 2017 electric fan wiring with switch and relay diagram aux fan relay wiring diagram base bimmerforums the ultimate bmw forum electric fan wiring with switch and relay diagram wiring a gm electric fan relay automotive schematic.

12 volt relay wiring diagram collections of best relay wiring diagram 5 pin bosch endearing enchanting blurts. It uses our 40 amp electric relay kit part number 91064044 and electric fan sensor part number 91064013. This way you can be sure only one circuit will be on at a time. Run a ground wire on the other terminal of the switch.

Here s some similar controllers. Best bosch relay wiring diagram 5 pole electrical outlet symbol 2018. 12 volt wiring diagram best 12v relay pin 5 and roc grp org in. These are the most common and easy to install.

Left most relay standard automotive bosch style relay. Use a good ground such as the steering column or the dash mount bolt at the kick panel for the ground. Now when the switch is turned on it will supply a ground for the relay causing the relay to actuate and turn the fan on. This will be the wire that connects your switch to your fan power wire.

Filmed this while filming my last vlog and wanted to do a dedicated diy on how to wire an electronic fan controller.