When to turn on the radiator fan switch?
When the switch is turned on, the power is sent back to the relay, through the relay and to ground, which activates the switch. The fan switch should be left on except when cruising. When the vehicle comes to a stop and no air is moving through the radiator, the fan should be on.
How do you connect a radiator fan to a hot wire?
Turn the key on and check for a second terminal to have power. This is the one from the key that will be used to actuate the relay. Mark it down. Put the voltmeter on ohms and check the remaining two terminals for a ground. Mark the terminal showing ohms down as a ground. The last terminal is the one to the fan.
Where does the power come from on a radiator fan?
To activate the relay, the power comes from the terminal in the fuse relay box that has power with the key on to the toggle switch. When the switch is turned on, the power is sent back to the relay, through the relay and to ground, which activates the switch. The fan switch should be left on except when cruising.
How do you test a radiator fan relay?
Install the inside toggle switch where convenient. Remove the radiator fan relay from the fuse and relay box on the fender well. Test the relay terminals for power with the ignition key off (use the voltmeter). There will be one terminal that has power with the key off. Mark this terminal on a piece of paper so it can be used later.
Can a manual fan switch be used on an electric radiator?
Please try again later. A radiator fan switch can be a great tool when you’re running your car hard either on the street or the track. Any car with an electric radiator fan can be setup to use a manual fan switch.
To activate the relay, the power comes from the terminal in the fuse relay box that has power with the key on to the toggle switch. When the switch is turned on, the power is sent back to the relay, through the relay and to ground, which activates the switch. The fan switch should be left on except when cruising.
How do you turn off a radiator fan?
The fan can also be turned off manually when cruising to extend the life of the fan. Install the inside toggle switch where convenient. Remove the radiator fan relay from the fuse and relay box on the fender well.
Turn the key on and check for a second terminal to have power. This is the one from the key that will be used to actuate the relay. Mark it down. Put the voltmeter on ohms and check the remaining two terminals for a ground. Mark the terminal showing ohms down as a ground. The last terminal is the one to the fan.