gearbox tcu

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
111marc111
1st Gear
Posts: 69
Joined: Tue Aug 02, 2022 7:22 pm

Re: gearbox tcu

Post by 111marc111 » Sun Mar 10, 2024 1:49 pm

https://www.ecutesting.com/product-cata ... nsmission/

Try this website. Heard good things about them and subsequently I'm sending my abs unit off to them for repair Monday.

The website suggests the can supply a new TCU, I suspect refurbed, but they can also rebuild yours or at least diagnose it and prove it to be ok.
Might be worth a shot.

c4v8
Neutral
Posts: 16
Joined: Sat Nov 27, 2021 4:38 pm

Re: gearbox tcu

Post by c4v8 » Sun Mar 10, 2024 2:31 pm

mornung ,all codes for the tcu 18223 pressure control solenoid"A" control circuit high, status passive sporadic

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Shoppinit
Cruising
Posts: 20301
Joined: Wed Dec 31, 2008 6:24 pm

Re: gearbox tcu

Post by Shoppinit » Sun Mar 10, 2024 5:02 pm

Ok. Not F125 related. Based on the info supplied I’d say it’s worth a punt to replace the TCU.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

c4v8
Neutral
Posts: 16
Joined: Sat Nov 27, 2021 4:38 pm

Re: gearbox tcu

Post by c4v8 » Sun Mar 10, 2024 9:47 pm

Thanks all , will let the out come be known.

Frazz82
2nd Gear
Posts: 235
Joined: Thu Jul 18, 2019 9:59 am

Re: gearbox tcu

Post by Frazz82 » Wed Mar 13, 2024 6:04 pm

I had the same issue, water leak through the bonnet cable soaked the TCU and was getting the same codes again an again but only if I turned ignition on an left it. Took a punt on a TCU and problem solved.

Felix2566
2nd Gear
Posts: 212
Joined: Sun Apr 09, 2023 2:27 pm

Re: gearbox tcu

Post by Felix2566 » Thu Mar 14, 2024 11:28 am

I used ECU testing to repair my ABS control module, can also recommend them.
They charge a nominal fee to test your module to see if there are any faults before the full fee to repair any faults they can find.

rs4wagon
3rd Gear
Posts: 278
Joined: Fri Sep 27, 2013 11:55 pm

Re: gearbox tcu

Post by rs4wagon » Thu Mar 14, 2024 9:08 pm

i have tcu in my glove box for the last 4yrs when i did manual swap,if you in need just msg me.Even if you only want to test it

c4v8
Neutral
Posts: 16
Joined: Sat Nov 27, 2021 4:38 pm

Re: gearbox tcu

Post by c4v8 » Tue Mar 19, 2024 9:50 pm

Hi all . still looking for a good tcu if any available
thanks

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