dirkstern1
Corolla transmission slipping error code
Summary of the thread
A 2015 Toyota Corolla is experiencing intermittent starting issues, a check engine light, and transmission slipping, with an error code related to the automatic transmission parking position. The problem may be due to a faulty transmission control unit. It is suggested to have a professional diagnose the control unit, as this was a similar issue resolved in another vehicle by replacing the control unit.
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4 comment(s)
dirkstern1 (community.author)
Yes, it's intermittent, sometimes it starts fine, other times nothing. The gearbox slips especially when accelerating from slow speeds. I haven't specifically checked the neutral position or gear linkage myself, where should I start?
La_yla
Okay, on my Audi, that intermittent thing and the slipping were key signs. I suspected the park brake. It ended up being the control unit itself. You can check the linkage for obvious damage, but honestly, with those symptoms and the error code, I'd suggest taking it to a shop. They can diagnose the control unit properly.
dirkstern1 (community.author)
I appreciate the advice. I took it to my mechanic. The diagnostic pointed to a defective transmission control unit. Parts and labor came out to around 1000€. Hopefully, this fixes the issue for good.
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TOYOTA
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COROLLA
La_yla
Sounds familiar. I had a similar problem with my old 2012 Audi A4. Same symptoms. Does it happen intermittently? I had shifting issues too. Did you check the neutral position or the gear linkage?