Radiator Fan relay

2006 HONDA CIVIC
94,000 MILES • 1.8L • 4 CYL • AUTOMATIC
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PAULNGUYEN
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i don't know where my radiator fan is. Can you show me where it is please? i try to look it up on the website but i don't see it. thank you very much. right now my radiator fan doesn't work even i changed temperature sensor,fan switch, thermostat, check the fan motor, but it still doesn't work yet. please help me?
Mar 22, 2014 at 9:33 AM
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JDL
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The coolant fan relay is in the underhood fuse/relay box. #15 in the picture, also the fan control and diode #8.

Are there any applicable trouble codes? Some of the national brand autostores will check codes for free. How hot is the engine getting in degrees F?

Also check the fuses 36 and 7 in the diagram. Not only check the fuses, check for voltage on the fuse circuits. One fuse circuit is hot all the time, the other goes hot with the key on.
Mar 22, 2014 at 1:05 PM
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JDL
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Hi Homer, when I first saw the post, I thought the same thing. Then I saw the bold black lettering at the top of the post about radiator fan relay, so I gave the relay location.

I've been confused on other posts, because the wording on the post question was different than the bold black lettering on the post itself, anymore, I check both.
Mar 23, 2014 at 12:01 PM
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HOMER1967
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I never noticed that at all,thank you jdl for your help and for pointing that out to me.and to paulnguyen I apologize for my incorrect answer and my confusion.
Mar 23, 2014 at 5:58 PM
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PAULNGUYEN
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i just replay the relay. the radiator fan still doesnt work.i dont know if there is anything that i can check.please help me.my fan which doesnt work right now is on the driver side. is it the radiator fan? thank you very much
Mar 24, 2014 at 6:59 PM
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JDL
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Did you check the fuses like I asked? Did you have the system checked for applicable trouble codes? Unless you can answer some of my questions, I'm going to have a tough time trying to help.

You could use jumper wires on your fan connector, just to see if the fan will run. Run the jumpers from the battery to fan connector. At the fan, brown wire is voltage, run from positive side of battery. At the fan connector, red wire is ground, the negative side of battery is ground. It would be safer to use an inline 20 amp fuse on one circuit. At least that should show you if the fan will run or not?
Mar 25, 2014 at 8:01 AM
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PAULNGUYEN
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i dont know how to check the relay on 7# but can u tell me the name of the relay 7, so i can go to buy it.
before i also get the jumper wire to connect between the fan and battery.the fan works, it means that motor of the fan is still fine.
Mar 25, 2014 at 9:38 AM
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PAULNGUYEN
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in my fuse box in my car, i dont have the relay number 4. what is the relay number 4? can u tell me where the fuse 36. i cant find it. thanks
Mar 25, 2014 at 9:44 AM
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JDL
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The info I looked at said except hybrid.

If you use a jumper wire between terminals 1 and 2 according to the diagram already posted, radiator fan relay, the fan should run. By using the jumper, your bypassing the relay. That #1 terminal is hot all the time for that relay is hot all the time.

If the fan doesn't run, something is wrong with the fan---voltage wiring circuit or ground wiring circuit.
Mar 25, 2014 at 12:19 PM
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PAULNGUYEN
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I checked the radiator fan relay in the location 15 already.so I guess there is only way that I have to replace the locstion 8.those possible place I replaced new parts.i have spent 2 months and I cant fix it.
I will describe how my fan works.i have honda fit and civic.in honda fit, the a/c fan and radiator dam run at the same time, but in my civic, first I thought radiator fan will run when thw engine is hot, after driving for 30 min, it still doesnt run.
Mar 25, 2014 at 9:18 PM
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PAULNGUYEN
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My means I changed new radiator fan relay in #15
Mar 25, 2014 at 9:20 PM
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JDL
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I understand, The radiator fan relay is new, but, the relay control circuits could be faulty, that is why I told you how to bypass the relay with jumper wire. Even if you replace the relay, if there is a problem with wiring circuit to and from relay, the relay still won't work.
Mar 26, 2014 at 10:00 AM