Fan control module

[cjt671]

Does the fan control module control both fans? Im trying to find what component would cause both fans to be inop at high temp and with the ac on. Just started to day both electric fans wont come on tested all the fuses under the dash.. there is power going to fan wires next to power steering res. Also old posts aren't very helpful in finsing the relays for these fans, are there two different ones?

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[Cgoon009]

Does the fan control module control both fans? Im trying to find what component would cause both fans to be inop at high temp and with the ac on. Just started to day both electric fans wont come on tested all the fuses under the dash.. there is power going to fan wires next to power steering res. Also old posts aren't very helpful in finsing the relays for these fans, are there two different ones?

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if by both fans you mean the two electric ones, then yes. the FCM powers both

[cjt671]

if by both fans you mean the two electric ones, then yes. the FCM powers both

Yes electric ones.. is that the only component tied to power both the fans? Or is the relay for power of the control module too. Just jumped both fans to the battery and the both work. Do you know of a way to test fan module?

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[cjt671]

I got around 10 volts coming from the wiring that comes from the fan module.. is that normal

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[Cgoon009]

I got around 10 volts coming from the wiring that comes from the fan module.. is that normal

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which wires? you should have a power supply plug and a control plug. then you should have two out put plugs for power.



If you FCM isnt bad, then it may be a relay or sensor. But my money is on the FCM.

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I got around 10 volts coming from the wiring that comes from the fan module.. is that normal

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that seems odd. you aren't using a auto ranging meter are you?

[cjt671]

which wires? you should have a power supply plug and a control plug. then you should have two out put plugs for power.



If you FCM isnt bad, then it may be a relay or sensor. But my money is on the FCM.

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that seems odd. you aren't using a auto ranging meter are you?

Brown and black connectors coming off the fcm
Ill double check, it isn't an auto ranging meter.


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[cjt671]

I tested what I believe tp be the fan relay and its good so I guess fcm it is

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[Cgoon009]

I tested what I believe tp be the fan relay and its good so I guess fcm it is

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http://www.audizine.com/forum/showth...-so-I-did-this

checkout that diagram first. worth poking shit a bit since its free.

Go with a unit from FCP Euro, it may be a few dollars more, but they will replace it whenever no questions asked. I get all my sensors and other electrical parts from them so they are covered.

[cjt671]

http://www.audizine.com/forum/showth...-so-I-did-this

checkout that diagram first. worth poking shit a bit since its free.

Go with a unit from FCP Euro, it may be a few dollars more, but they will replace it whenever no questions asked. I get all my sensors and other electrical parts from them so they are covered.

Did enough troubleshooting I believe to point me towards fcm. But you will not fucking believe this..

I just ordered the fcm from europa parts, went to move the car to put it on ramps to pull old one off and both fans kicked on and off woth the ac like they should lmfao gonna let the car get up to temp to make sure they come on with hot coolant too. This is insane lol

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[Meow]

FYI there are three fans :)

Pusher out front too!

[cjt671]

FYI there are three fans :)

Pusher out front too!

My concerns are the oem electric fans, ive got an aftermarket efk in place of the clutch fan

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[cjt671]

One thing I did do was jump what I believe was the fan relay, heard it click and assumed it was good, so I ended up ordering the fcm..

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[Cgoon009]

One thing I did do was jump what I believe was the fan relay, heard it click and assumed it was good, so I ended up ordering the fcm..

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yeah if they came on, I would re check the relay. Thats pretty funny

[cjt671]

yeah if they came on, I would re check the relay. Thats pretty funny

I wonder if its intermittent.. I think Im gonna hold off on the fcm and if it does it again swap relays

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[M1NDCRlME]

I wonder if its intermittent.. I think Im gonna hold off on the fcm and if it does it again swap relays

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You need to check the output from the FCM with an osciliscope. The FCM outputs a variable square wave. I had a fan that would work intermittently in the car but worked great with 12V, figured shit the fan is good and bought a used FCM. Same thing happened with the replacement FCM. Got pissed and did more research and finally broke out the oscilliscope. Sure enought both controllers were good. Replaced the fan and haven't had an issue since then.

[cjt671]

Appears FCM was the culprit this time, fans are working as they should. Thanks fellas

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