The relay is more likely to fail than the fan. Easiest way to check is to disconnect the electrical connection to the fan and hook it up to two substitute wires ... one to the battery and the other to a ground.
If the fan runs, you know it works, so your problem is either in the relay, the wiring, or a temperature sensor.
In front of the radiator.
Plugged radiator Defective thermostat Low coolant Defective radiator cap Water pump not circulating water fast enough Cooling fan not working
I am the one who asked this question. After two 2 days the radiator fans failed to come on. The fan relay was defective and I replaced it. Advice; if your radiator fans run continuously (more then 20 min) after the engine is turned off, highly consider buying a new fan relay. That is what I did and when the fans stopped working I had the part handy. The radiator fan relay fan relay is located driver side, between the radiator and the head lights. Remove the air filter container to access it.
radiator fan relay
probably the fan relay
Check for a blown fuse or defective fuel pump relay.
Coolng fan not working?Radiator or air flow plugged?Water pump not rotating fast enough?Defective radiator cap?
Does a 1998 Honda prelude have a clutch cable
If the bulbs all come on but do not flash then the flasher relay is defective and needs replacing.
Prelude to the Millennium was created in 1998.
Look at the rear of the radiator approx. 1/3 down from the top
What is the eaziest way to replace an altanator on a 1998 Prelude SH?