Questions & Answers

anyone experience 2016 Mazda 6 steering issue after evo-one & T Harness install?

+3 votes
After installing evo-one with Thar-one-maz3 on a 2016 Mazda 6, I am experiencing intermittent steering wheel turning resistance, usually on right hand turns at slow speeds, issue goes away after restarting vehicle then eventually comes back.

Issue goes away completely after removing harness/device. I have tried 2 different T harnesses & Fortin modules, same issue.

I have a 2014 Mazda 3 with same Fortin Evo-one-Maz3 setup and I have 0 issues.

would appreciate some help figuring this out.
posté Nov 14, 2025 dans la catégorie Mazda par Jorge Malpica2 (160 points)

2 Réponses

+1 vote
I am having the exact same issue. Did you find a fix?
répondu Mar 8 par Casey Redden (180 points)
Has your issue been resolved yet? Try a firmware downgrade to 85.12 then reset and reprogram the evo-one.
0 votes
Sounds like there is not enough slack in the harness after mounting everything.

 

Before tieing up everything, pull out the steering wheel completely if it is telescopic, and rotate fully right and left, all the way up, all the way down, ensuring the harness is not being obstructed by anything.
répondu Nov 17, 2025 par Robert T (310,630 points)
that was my first thought, I kept the bottom cover off to look at the harness while driving, the harness does not get pulled when turning the steering wheel.
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