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Thread: Cooling Fan Controller Replacement

  1. #1

    Default Cooling Fan Controller Replacement

    Have a 2005 MPS 6 and found my cooling fans were operating slowly, so tracked the problem back to a failed fan controller module. In this model Mazda does not sell the module and you have to by the fans as well $1034.50. The module in my car is a Denso unit but the Mazda part is all the same for these models L3K9-15-15Y. Started looking around and found I could get these modules online in bulk, so purchased a lot of 5 (minimum order). Install just involved a 100W soldering iron and 30 minutes of time and it works perfectly. I have attached photos of the units (new vs.old) and the steps in replacing it. Still have 4 left over new units if anyone is interested on a $40 fix versus a $1000 fix.

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  2. #2
    Join Date
    Nov 2008
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    Craigieburn
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    50
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    Default

    Thanks for posting this - that's a huge $ saver

  3. Default

    PM'd mate

    Quote Originally Posted by mpslover View Post
    Have a 2005 MPS 6 and found my cooling fans were operating slowly, so tracked the problem back to a failed fan controller module. In this model Mazda does not sell the module and you have to by the fans as well $1034.50. The module in my car is a Denso unit but the Mazda part is all the same for these models L3K9-15-15Y. Started looking around and found I could get these modules online in bulk, so purchased a lot of 5 (minimum order). Install just involved a 100W soldering iron and 30 minutes of time and it works perfectly. I have attached photos of the units (new vs.old) and the steps in replacing it. Still have 4 left over new units if anyone is interested on a $40 fix versus a $1000 fix.

    Click image for larger version. 

Name:	20180425_140013.jpg 
Views:	244 
Size:	1.39 MB 
ID:	17951Click image for larger version. 

Name:	mazda fan unit quote.png 
Views:	218 
Size:	30.6 KB 
ID:	17952Click image for larger version. 

Name:	20180425_145016.jpg 
Views:	222 
Size:	1.47 MB 
ID:	17953Click image for larger version. 

Name:	20180425_100949.jpg 
Views:	201 
Size:	1.20 MB 
ID:	17954Click image for larger version. 

Name:	20180425_150251.jpg 
Views:	203 
Size:	1.01 MB 
ID:	17955Click image for larger version. 

Name:	20180425_153152.jpg 
Views:	219 
Size:	1.16 MB 
ID:	17956Click image for larger version. 

Name:	20180424_144427.jpg 
Views:	194 
Size:	961.3 KB 
ID:	17957

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