Engine Overheating Due to Failed Cooling Fan Control Module on Mazda Mazda6

The engine may overheat due to erratic engine cooling fan operation as a result of a faulty cooling fan control module. Replacement of the fan control module would be necessary to correct this condition. Our technicians tell us the Mazda may provide assistance with the cost of this repair.

RepairPal Verified
Average mileage: 112,472 (170–250,000)
Engines affected: 2.3L 4 Cylinder, 2.5L 4 Cylinder, 3.0L V6, 3.7L V6
8 model years affected: 2003, 2004, 2005, 2006, more2007, 2008, 2009, 2010
70 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
Viewing 1 - 20 of 36 problem details
2010 Mazda Mazda6 - 2.5L 4 Cylinder
No a/c when Idling, Engine heats up. Fans come on for a few seconds, but not very fast, then quits. A/C works when your driving fast enough to get airflow across the condensor.
2006 Mazda Mazda6 - 3.0L V6 144,000 mi,
Leaking coolant and overheated, my car stalled during rush hr. It is not drivable because it would overheat and the engine would shut down. Steam was coming out of my hood. Fan was not working.
2004 Mazda Mazda6 - 3.0L V6 56,450 mi,
car overheated, steam was coming out of the coolant bay, and was spewing out coolant. recall on SSP71 Fan Control Module; replaced and installed AJ51-15-15YA for free. problem solved. basically, this error makes A/C, radiator fan, and other stuff malfunction.
2003 Mazda Mazda6 - 2.3L 4 Cylinder
Car overheats when idle and ac won't blow cool. Car rides fine and air blows well when in motion. Only issue is when it is idle for several mins.
2005 Mazda Mazda6 - 3.0L V6 57,000 mi,
Fan continued to run for some time after engine shuts off. Fan comes on and winds up as soon as engine is started. During summer Air would not cool car. Dealer said the module had already been replaced twice and they would not replace it again. If they replaced it it was without my knowledge.
2004 Mazda Mazda6 - 3.0L V6 170 mi,
driving down the road and i felt a little jerk then the temp gauge went all the way to cool and the at light as well as the traction control light came on
2006 Mazda Mazda6 - 3.0L V6 73,000 mi,
Fan keeps running for seconds up to minutes after the car is shut off. Had fan module replaced, $350 later, still experiencing the same problems.
2006 Mazda Mazda6 - 3.0L V6 103,000 mi,
Fan continues to run after the ignition is turned off, repair shop said cooling system was okay, but for $85 they could connect it to the "computer" to tell me the same thing I just found out on the Internet, I will be calling Mazda to see what they have to say.
mazda replaced the fan module, took 6 hours for this to be done.
2005 Mazda Mazda6 - 3.0L V6 250,000 mi,
Fans work sometimes. I replaced the module but did not correct the problem. Now 3 months later back to the same overheating problem but, now the fans do not run.
2006 Mazda Mazda6 - 2.3L 4 Cylinder 42,123 mi,
AC stops working when at stop light. Engine temp rises. When driving at speed AC will start working again and engine temp returns to normal.
2009 Mazda Mazda6 - 3.7L V6 92,000 mi,
2010 Mazda Mazda6 - 3.7L V6 88,000 mi,
My Mazda 6 v6 2010 Model has this exact same problem. The dealership says they have to replace the entire fan assembly at a cost of $1,275 and that this is not covered under the 100,000 mile extended warranty on my certified pre-owned car.
2006 Mazda Mazda6 - 3.0L V6 172,000 mi,
At first, air would blow, but as soon as i came to a stop, NOTHING. And now, No cold air blows out.. Took it to the shop, they said we had too much freon in; So, they drained it all out, send started fresh.. Now, a fan comes on as soon as I start my car! It runs very very loudly, the whole time my car is running, and for like 1 minute after it shuts off... My temperature gage is in the middle. I seen it move up a little, but it soon settled back near the middle.. My car has never had a problem until I took it to this shop... My take off is amazing, transmission has no jerks, and she idles very smoothly! My mom says it's normal, but I drive my car everyday, and I have never ever heard this loud racket before..
2008 Mazda Mazda6 - 2.3L 4 Cylinder 192,000 mi,
I am still currently fighting this problem... I replaced the coolant temperature sensor, the radiator, the serpinteen belt, the thermostat, and now I guess from what your site says, I'll replace the coolant fan control modulator...
2006 Mazda Mazda6 - 3.0L V6 115,000 mi,
When the engine turns down, sometimes it is ok, but other times the fan goes on forever (10-15 minutes) before it stops.
2008 Mazda Mazda6 - 2.3L 4 Cylinder 74,000 mi,
Car runs hot cooling fans are not coming on at all..car use to stay cool as long as im driving at speed and never reached the "H", now it doesnt cool even when I am driving! Recently got coolant sensor replaced (seems like the car wouldn't cool since the replacement)...whats wrong with my car?
2004 Mazda Mazda6 - 3.0L V6 185,000 mi,
Cooling fans shut off and on even with a/c on and engine warm. They also only turn slow. Enine has overheated after only drive a few minutes in town traffic. Thinking control module, water pump was changed 1000 miles ago.
2004 Mazda Mazda6 - 3.0L V6 198,436 mi,
Blew a hole in radiator while driving , overheated . Replaced radiator but haven't fixed fan issue yet . Wasn't sure why the fans wouldn't turn on.
2007 Mazda Mazda6 - 3.0L V6 107,000 mi,
Im having a problem where my engine fan stays for a few seconds or sometimes even minute. I did a search on Google to find out if this was a common problem and it looked like it was. I found a video of a guy explaining why this problem is happening and it looks like it is due to a failing Fan Control Module. I bought the replacement part from Rock Auto and on the instruction sheet it stated that before this part is installed, that you need to first find out if you have a failing fan motor. As I look through the comments here I notice that some of you have already went through 2 or 3 of these Fan Control Modules, and the reason for that is because if you have a malfunctioning Fan Motor that, would be the reason why the Fan Control Module is bad. A malfunction Fan Motor will blow a Fan Control Module every time. Make sure your Fan Motor is in good condition before you install the Fan Control Module or you will keep burning it.