Do you have to hard wire a radiator fan?
You need to hard wire the radiator fan to a toggle switch on the dash in such a manner that the fan will shut off when the ignition key is off. The fan can also be turned off manually when cruising to extend the life of the fan. Install the inside toggle switch where convenient.
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.
How to troubleshoot an electric cooling fan problem?
1.Has the Cooling Fan Actually Failed? 1 If the fan comes on when the AC is running at MAX, but doesn’t run when the engine is hot, check the temperature sensor… 2 If the fan fails to come on, first check for a fan blown fuse or triggered breaker. On older vehicle models, you may… More …
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.
You need to hard wire the radiator fan to a toggle switch on the dash in such a manner that the fan will shut off when the ignition key is off. The fan can also be turned off manually when cruising to extend the life of the fan. Install the inside toggle switch where convenient.
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.
1.Has the Cooling Fan Actually Failed? 1 If the fan comes on when the AC is running at MAX, but doesn’t run when the engine is hot, check the temperature sensor… 2 If the fan fails to come on, first check for a fan blown fuse or triggered breaker. On older vehicle models, you may… More
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.