TRNW-2: FW6A-EL Mazda 6 speed units Pressure Switches

[Mathieu Langlais]

We replaced a few transmission for 3-5-R problem on some CX-5 . We
installed low mile used.


Mathieu Langlais
Transmission L'Archeveque Inc.
450-471-7733


On Wed, Oct 1, 2025 at 2:25 PM Dan Hogan via trnw2 <trnw2 at trnw.net> wrote:

> Fishing for some experience with these 6 speed units.
>
> I have a 2018 CX5 in the shop with a customer concern related to a bumpy
> 2-3 and 4-5 shift at times.  No codes are present.  We are going to do a
> pan inspection.
>
> Ive dug into the Fix database and see a similar issue posted by Dean down
> in NZ related to a TCM failure.  I suspect I may have a pressure switch
> issue as the shift concern on the 2-3 shows a double tap on the 35R
> pressure switch PID.  When the shift is smooth and normal, pressure switch
> closure is one event.
>
> Has anyone encountered the TSB described failure of the pressure switches
> on these units?  Always codes?  Shift quality directly affected?
>
> Thanks for any experience with these units.
>
> ---
>
>
> Dan Hogan
>
> Buster's Transmission Service
>
> https://busterstransmission.com
>
> 704.847.5321
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