2016~2021 P0401

Mazda CX-9 Signature
If your car doesn't have any symptoms with CEL P0401 then very likely refer to the tsb that I have attached. The update of pcm is covered under fed emission warranty.

I have 58k on the clock so I'm still within the powertrain and fed emission warranty. And since it's software issue, I have no choice but to take the car in. I dread going to dealership because of the incompetent and unknowledgeable service reps aka sleazy service sales. I was told they took care of the P0401 pcm update under powertrain which was cutting it at 58k. I then asked if it should have been under fed emission since it was emission related item. I was told if I bought it in after 60k then I would pay out of pocket $160 diagnostic fee + half hour of service charge. I thanked him and left. I then looked at the complimentary inspection and found I still have 6mm of material on all my brake pads. 58k on the clock with 6mm on my original rear pads? I don't think so. Sorry just needed to vent a bit of my stellar dealership service experience.


2007 Mazda CX-9 Touring
Did you noticed that the tsb says to clear and update the ids before programming? I thought that this wasn't a ford vehicle. This system is used for ford so I guess that there is some ford in this cx-9.
2010 CX-9 GT
Mazda is transitioning to their own diagnostic software starting with the 3 and the Cx-30. Everything else is still using IDS.