91 Si - Radiator fan wires rigged and now fan isn't working

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Old Feb 8, 2013 | 03:48 PM
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Default 91 Si - Radiator fan wires rigged and now fan isn't working

I have a 91 si. I drove my car earlier and i noticed that i smelled something buri ing. So i checked the wire that's connected to the ignition and It was warm. I followed it to my ignition and it felt really hot. I'm afraid that it's going to catch on fire. I think it's a short or a bad ground somewhere but not too sure. IF ANY ONE CAN PLEASE HELP ME!!!!
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Old Feb 8, 2013 | 04:35 PM
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Default Re: Help! Ignition heats up

What wire is it?
There are only like 102130908098123897947109.1235E wires under the dash the go to the igntion.

Are you sure you are a real poster on this site and not just spamming questions to get a post count up?
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Old Feb 8, 2013 | 07:06 PM
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Default Re: Help! Ignition heats up

Give him a break, sounds like a legit problem.

Is you car stock? or is it swaped, does it have an alarm or any DIY wiring?

I'm not sure where you would start diagnosing this except for pulling apart the harness so you can examine it. hopefully somebody else has a better method

Check your fuses and make sure they are the correct amperage

Last edited by grog; Feb 8, 2013 at 07:49 PM.
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Old Feb 8, 2013 | 08:04 PM
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Default Re: Help! Ignition heats up

Lol na for real it's a problem

It's under the dash, a friend said that it might be the ignition switch. But the wiring is kinda tampered with because it was rigged for a system. But I don't have a sub just speakers
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Old Feb 8, 2013 | 08:05 PM
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Default Re: Help! Ignition heats up

It's a stock motor and no alarm
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Old Feb 9, 2013 | 09:16 AM
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Default Re: Help! Ignition heats up

Originally Posted by FOSHOITZDANNY
Lol na for real it's a problem

It's under the dash, a friend said that it might be the ignition switch. But the wiring is kinda tampered with because it was rigged for a system. But I don't have a sub just speakers
Did you make sure all the fuses are the correct amperage? There's 2 fuse boxes, one under the dash and one under the hood.

I would trace the wiring for the previous owners system. Just to ensure wiring is OK, you should try to return it back to its original state.
Look for wires that dont appear stock, and remove them. First trace their path just to make sure these are in fact useless.

Heres an old thread that could be helpfull https://honda-tech.com/forums/showth...light=ignition

Last edited by grog; Feb 9, 2013 at 09:34 AM.
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Old Feb 10, 2013 | 07:38 PM
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Default Re: Help! Ignition heats up

its cause one of my ignition cords were rigged so that the radiator far would run when the car was running. now im confused to how im supposed to get the radiator to run..... the radiator wire was attached to the yellow (ground?) wire, and when i would remove it the white wire(the one that was heating up in the first place) wouldnt get hot anymore...

how does the radiator far normally wire up?
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Old Feb 10, 2013 | 08:32 PM
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Default Re: Help! Ignition heats up

Fan*
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Old Feb 10, 2013 | 08:46 PM
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Default Re: Help! Ignition heats up

Hopefully the old wiring is still intact. Is there a un-used plug next to the radiator fan? you may just need to plug it back in.

Here's a thread with a diagram in it: https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/iacv-ect-rad-fan-wiring-2954442/
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Old Feb 11, 2013 | 03:07 AM
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Default Re: Help! Ignition heats up

the diagram helps but i really dont know what im looking at
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Old Feb 11, 2013 | 05:32 PM
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Default Re: Help! Ignition heats up

The system is made up of a coolant temp switch, a relay, the fan and its wiring. You'll need to check out each of those components to see which one is the problem.

look at the pic at the bottom to see where the radiator fan relay is: https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/radiator-fans-dont-work-91-si-2577806/

Here's the coolant temp switch's location (its the second picture from the top): http://hybrid.honda-perf.org/tech/sohcvtec.html

The radiator fan plug is on the bottom passenger side of the fan.

let us know what you find.
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Old Feb 14, 2013 | 11:00 AM
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Default Re: Help! Ignition heats up

I found the original wire that the radiator fan was connected to and the fan started to work continuously. So I thought it was okay but it just stopped working all of a sudden. I don't know if it's the relay or the coolant sensor or fan switch
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Old Feb 14, 2013 | 11:06 AM
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Default Re: Help! Ignition heats up

Fuse blown?
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Old Feb 14, 2013 | 12:40 PM
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Default Re: Help! Ignition heats up

I doubt it's a blown fuse. I cant just get to the coolant fan switch from just popping the hood right?
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Old Feb 14, 2013 | 12:43 PM
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Default Re: Help! Ignition heats up

Originally Posted by FOSHOITZDANNY
I doubt it's a blown fuse.
What makes you have this doubt? Or is this a random guess?

Why would you possibly want to rule out something so simple when it's incredibly easy to check?
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Old Feb 14, 2013 | 12:47 PM
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Default Re: Help! Ignition heats up

Originally Posted by 4drEF
What wire is it?
There are only like 102130908098123897947109.1235E wires under the dash the go to the igntion.
Originally Posted by grog
Give him a break, sounds like a legit problem.
4drEF was not criticizing the legitimacy of the problem. It was the fact that the first post lacks sufficient information for anybody to provide helpful information.
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Old Feb 14, 2013 | 03:08 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

Yup sorry its a blown fuse and it keeps blowing them!!!!!! What could be causing this??
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Old Feb 14, 2013 | 03:14 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

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Old Feb 14, 2013 | 04:10 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

So I'm now confused.
my GUESS is that you are trying to now wire the fan as if it were stock?
But when you try to do that, a fuse blows.

Is that correct?

If so, which fuse is popping?
My assumption is the fan fuse, but I want to make sure EXACTLY which fuse.
Then I can show you a schematic and which things to disconnect to figure out where you are getting a shorted wire.
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Old Feb 14, 2013 | 04:23 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

Yeah I'm trying to wire it up originally but the wire harness is cut up at different places. I wired the radiator fan plug wires, blue wires together, and wired the black ones with a ground. Idk why but earlier it was working when I had it wired it would run all the time but now it just pops the fuses
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Old Feb 14, 2013 | 04:24 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

It's the #15 fuse under the dash
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Old Feb 14, 2013 | 05:03 PM
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Default Re: Help! Ignition heats up

Its to be expected that something is not right with your cooling fan system. Thats why the previous owner rigged it up.

The coolant fan switch is on the back of the block so it will be harder to get to (I'm not so familiar with the stock motor).
Test the cooling fan relay (look at the link I left above for its location). First unplug it and unbolt it, then with 2 wires attached to a battery - and +(dont touch them together) apply power to the 2 pins on the right (as you look at it with the release tab up) it should click, while applying power check for continuity between the other pins on the left. if there is no continuity the relay is bad.
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Old Feb 14, 2013 | 05:14 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

It's not going to blow the fuse when I do the relay test?
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Old Feb 14, 2013 | 05:21 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

Originally Posted by FOSHOITZDANNY
Yeah I'm trying to wire it up originally but the wire harness is cut up at different places. I wired the radiator fan plug wires, blue wires together, and wired the black ones with a ground. Idk why but earlier it was working when I had it wired it would run all the time but now it just pops the fuses
Maybe you could explain what you did to the wiring again in more detail.

When you say you wired them together you mean you spliced 2 wires together? That might be part of the problem. The radiator fan has one blue wire and one black/yellow wire (usa model),and the canadian model has a yellow/green and a black/yellow wire. You may have grabbed the wires for the condenser fan which are black and blue/black (usa and canadian)

Its likely the circuit is overloaded, which is causing fuses to blow. Go over the wiring again becuase you wont be able to find the problem behind all of this untill you wiring is back to normal.
https://honda-tech.com/forums/showthread.php?t=2954442
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Old Feb 14, 2013 | 08:09 PM
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Default Re: 91 Si - Radiator fan wires rigged and now fan isn't working

Do these tests:

1) Unplug the fan relay. Install a new fuse 15.

2) Turn the Key to ON(II). Does fuse 15 blow?

3) If not, now ground the Blu wire terminal in the fan relay socket to the chassis. Does the fan run without fuse 15 blowing? Or does fuse 15 blow?
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