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post #1 of 10 (permalink) Old 12-03-2015, 08:27 PM Thread Starter
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Fan control module

I think mine is going bad on my '06 mazda 6 (3.0). How expensive are they and how hard to replace? I've heard there has been a recall on these parts. Will mazda still honor a recall, even if the car was bought used years after the recall bulletin?
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post #2 of 10 (permalink) Old 12-04-2015, 02:34 PM
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Rockauto, $54. Mazda, 2006, 6, 3.0L 6, Cooling System, Cooling Fan Control Module
I bought mine from ebay for like $40 because at the time Rockauto did not have the part.
Then google "mazda 6 cooling fan control module" and you'll find instructions on how to replace it. It's not rocket science. The biggest pita is working in such tight space, but all you need is a small wrench to loosen/tighten bolts.
ps. Yes there was a recall/TSB back in the day. It'll be faster and less frustrating to just do it yourself.

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Last edited by ydrone; 12-04-2015 at 02:36 PM.
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post #3 of 10 (permalink) Old 12-04-2015, 03:08 PM
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Quote:
Originally Posted by ydrone View Post
Yes there was a recall/TSB back in the day. It'll be faster and less frustrating to just do it yourself.
Just to add to this - Only cars that qualify for the recall had to have been produced (if I remember correctly) Jan 2005 to Dec 2006 and depending on your dealership they require the car be under 100k miles.

But if you're in that category, might as well have the dealer do it if they're willing. The first place I went to thought I was crazy, the 2nd place thought I was making it up, but after doing research found I was correct and my car qualified.

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post #4 of 10 (permalink) Old 09-20-2018, 04:04 PM
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Is there a way to verify that the FCM needs to be replaced? (I.e., that it is not something else causing the radiator fan to run almost as soon as the car turns on until up to 10 seconds after it's turned off, regardless of temperature?)
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post #5 of 10 (permalink) Old 09-20-2018, 09:26 PM
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Quote:
Originally Posted by Byakuya View Post
Just to add to this - Only cars that qualify for the recall had to have been produced (if I remember correctly) Jan 2005 to Dec 2006 and depending on your dealership they require the car be under 100k miles.

But if you're in that category, might as well have the dealer do it if they're willing. The first place I went to thought I was crazy, the 2nd place thought I was making it up, but after doing research found I was correct and my car qualified.

My dealer replaced mine under the recall and my car is an 04 and had over 240K KM on it when I brought it in for the airbag recall. In fact, I had no idea it even had a recall and they brought it to my attention.

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post #6 of 10 (permalink) Old 09-20-2018, 09:37 PM
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A recall is a recall, regardless of miles. To the OP: Message me the last eight of your VIN and I'll let you know if your car is due recall parts.

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post #7 of 10 (permalink) Old 09-20-2018, 11:58 PM
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Quote:
Originally Posted by dbooksta View Post
Is there a way to verify that the FCM needs to be replaced? (I.e., that it is not something else causing the radiator fan to run almost as soon as the car turns on until up to 10 seconds after it's turned off, regardless of temperature?)
Why would the radiator run on a cold engine? That right there is an immediate sign that the module needs to be replaced. When you hear it constantly running and at random times it can rarely be anything else.
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post #8 of 10 (permalink) Old 09-21-2018, 02:49 AM
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It costs $30 US, spring for a new one and no more worries. I did mine several years ago and it still fine.




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post #9 of 10 (permalink) Old 09-21-2018, 12:56 PM
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Quote:
Originally Posted by Get Inline View Post
Why would the radiator run on a cold engine? That right there is an immediate sign that the module needs to be replaced. When you hear it constantly running and at random times it can rarely be anything else.
Good point. I have seen a few mentions of old fans drawing excessive current causing similar problems, including at the beginning of this video on replacing the FCM.

Are there any specs on the current limits I should find on "healthy" fans?
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post #10 of 10 (permalink) Old 09-21-2018, 12:59 PM
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Quote:
Originally Posted by dbooksta View Post
Good point. I have seen a few mentions of old fans drawing excessive current causing similar problems, including at the beginning of this video on replacing the FCM.

Are there any specs on the current limits I should find on "healthy" fans?
Not sure. It's easy to tell if the fan isn't operating properly or not though. It should just turn on from time to time to cool down the engine. When you have the heater cranked, It shouldn't really come on at all. You'll obviously hear it pretty often when it is hot outside.
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