Question about 1999 Honda CR-V

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Where is the fan switch on a 1999 Honda CR-V EX

The car is not overheating at all. There is a leak in the radiator and the radiator will be replaced with a new one in a few days time. The thing is the cooling fans are not coming on at all. When the A/C is switched on both fans run fine. I want to test the fan switch but I'm damned if I can find it. What looks like the fan switch on the thermostat housing looks nothing like the fan switch photos that suppliers of fan switches show.

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Facing the engine bay, there is a multiple wire connector down near chassie, some time corrosion get in the terminals. with a test light and a safety pin stick it in both sides of all wires ,one wire color at a time ( or find what color wire the FAN uses) ie Car side of white/blue wire and see if the ENGINE side of same wire reads the same volts. If CAR side of the connector reads 12.5 volts and ENGINE side reads Zero you got it. with a short piece of wire JUMP over that connector with pins on each side, the ENGINE side when U touch pin and see if FAN now works. permanently connect wire. works for me

Posted on Apr 23, 2015

  • John Wilson
    John Wilson Apr 23, 2015

    Hi William and thankyou for your prompt reply. Unfortunately it means nothing to me. All I want to know is the location of the Fan switch on a 1999 Honda CR-V. I have carried out all the other tests, (relays, fuses, thermostat) and the are all fine. I just need to find and test the switch. As I said above, what I am seeing on the internet and what I see under the hood are two different things. Nothing I see on the net looks like anything under the hood.


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Try this easy way to check the radiator fans:

Turn on your A/C and fan up high.
Now look at the radiator DON'T touch the fan area because both radiator fans are running.
This works every time.
If they are not running then you have a fan to fix.
Hope this helps.

Posted on Apr 24, 2015

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