Cooling Fan Relay Wiring

Find a spot to secure the relay with a screw or a bolt.

Cooling fan relay wiring.

Wiring diagram for cooling fan relay. The relay will usually be activated once it is detected that the vehicle s temperature approaches excessively high temperatures. Primary cooling fan dual fans with dual relays single speed on off using ground switched devices only for primary activation using dual relays for two fans is not required. The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan.

It shows the components of the circuit as simplified shapes and the capability and signal contacts between the devices. And if a relay fails you will still have one fan running. The relay has four terminals one that is hot all the time even with the key off. You could use one relay.

See all 8 photos. Diy relay easy step by step electrical wiring fan example how to wire a relay how to wire a fan how to wire fog lamp how to wire a fuel pump relay variou. The positive wire coming from the electric fan will connect to one of two red wires on your relay while the negative wire needs to go to ground. Locate the relay in immediate proximity to the fan being used.

However two relays will divide the load. The fan uses a relay in the fuse relay box under the hood. Electric fan relay wiring kit schematic diagram 1 dual fans wire a3 hyundai radiator ricks free auto repair cooling faq gm trusted nissan altima gone balmoond19 volvo 850 engine volvotips ot 0845 sd thermostat 100s 81h bury seclon de. To switch a relay on the two smaller wires make the connection from hot to ground.

Electric fan relay wiring diagram wiring diagram is a simplified tolerable pictorial representation of an electrical circuit. By admin october 22 2017. A radiator fan requires an average of 15 amps to operate. The cooling fan relay is the relay that controls the engine s cooling fans.

Install a 10 gauge wire to the battery positive terminal with the use of a round electrical connector. When the correct parameters are met a temperature switch or the computer will activate the relay which will allow power to the fans. The 12 volts comes from an ignition source the negative connection comes from the temperature sender which is designed to switch on at 185 degrees.