Mazda 3 Cooling Fan Not Working Fan Control Module Problem Youtube Here's what i see and think that happens: 1 a c is switched on at 3. 2 radiator fans stop working. 3 temp gauge starts rising. 4 as soon as i lower or turn off the a c and go slower, the temp gauge goes back to the middle (normal temp) took it the the shop, and they said: 1 it's the radiator fan control module. Updating this to say that my issue is resolved. replacing the radiator fan, with the module, is what fixed it. i think this issue is entirely within the module. i plugged the new fan in and it ran nonstop with the ac on, whereas plugging in my old fan would turn it on for only a few seconds.
Mazda 3 Cooling Fan Issues Q A On Control Module Diagrams If the fans stayed on continuously i would suspect the fan module as well, but because the fans turn off after 20 minutes that means the module is being told to stay on for a extended time frame most likely due to a over heat condition. try repeating the symptom with the ac turned off to try and isolate the issue. if that still doesn't fix the issue connect a scanner at watch the engine temps. Tap in module. this is bolt straight to fan where motor is for fan see if comes on or twitches. or check for power and ground at the bigger of the 2 connectors going to fan. obviously when fan should be coming on at the correct temp. if you have 12 volts on big red wire and a good ground you have a bad module. replace. If your fan control module is only putting out a few millivolts, there's a chance it has died, or maybe lost power, or is not being told to turn on the fan. but the fact that the fan does come on intermittently suggests that there is a bad connection somewhere. the component pictured is indeed a capacitor (aka condenser). it looks like a film type. In this video you will be watching of how to diagnose and fix a radiator fan that doesnt run for 06 mazda 3.
Mazda 3 Radiator Fan Not Working If your fan control module is only putting out a few millivolts, there's a chance it has died, or maybe lost power, or is not being told to turn on the fan. but the fact that the fan does come on intermittently suggests that there is a bad connection somewhere. the component pictured is indeed a capacitor (aka condenser). it looks like a film type. In this video you will be watching of how to diagnose and fix a radiator fan that doesnt run for 06 mazda 3. Since the problem is intermittent, it most probably is caused by a faulty sensor, fan control module or bad ground connections. remove the ground wires behind both the headlights, clean and reinstall and retest if symptom goes away. i have the schematic here for your understanding of the circuit. when problem happens, did the check engine light. I have been having cooling fan problems with my 2005 mazda6 3.0l engine. initially, the original cooling fans were running erratically, especially after the engine was turned off. the symptoms indicated a bad fan control module, which i replaced. the fans then ran properly for a couple of weeks, then stopped running altogether and the engine.
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