Plug a scanner into the ALDL port, then turn the ignition to "ON". The radiator fan should come on. If it does the relay is working. If the fan does not come on it doesn't mean the relay is necessarily bad. That could mean the relay is bad, or the fuse is blown, or the fan itself has failed.
Bad radiator fan motor; bad radiator fan relay; clogged radiator; thermostat stuck closed; loose belt; bad water pump; hoses leaking;
cooling fan relay is bad?
a bad fan control relay
If the radiator fan does not shut off on a 1996 Chrysler Cirrus, the fan relay might be bad. The fan relay is usually located in a bank of relays near the battery.
Yes. Cooling fan, engine fan, and radiator fan relays are all the same thing.
Radiator fan could be bad, fan relay bad, fuse blown. Also if your ECT (engine coolant temperature) sensor is bad the ECM (computer) won't know to tell the fan to turn on.
Run a hot wire to the positive wire on the radiator fan. If it works, then you have a fuse or a relay (or even a short in the wire). If it doesn't work at all, then the fan motor is bad.
When the radiator fan relay fails on a vehicle, it can quickly overheat due to the lack of cooling. The fan is designed to kick on at specific temperatures controlled by the relay.
fan control relay
three possibilities , fan thermostat switch is bad or cooling fan relay is bad, or radiator is low on coolant (possibly due to a leak - check reservoir & top up if needed).
This could be due to a bad temperature sensor, radiator cooling fan relay, or possibly even the radiator fan itself. Try tapping on the radiator fan to see if it starts to move while the vehicle is at normal operating temperature. If nothing then find temp sensor and unplug and jumper the electric connection with a paper clip to see if fan starts. If fan starts then replace the temp sensor. If fan does not start then suspect either bad fuse or bad relay.