What is the TCM (Transmission module)?
 

Hi, I took my car into VW because when my 2002 GTi 1.8T is not warm, the transmission won't make it's shifts. Once it is warm though, the car runs - no problem.

Anyway, the service manager at VW recommends to, "replace the TCM and retest the car" but if it doesn't fix it 100% then we would have to replace the transmission, "which is more likely the repair".

Obviously, replacing the transmission cost thousands more.

Has anyone else had this problem? I saw a TCM on eBay; is it a relatively easy fix?

Let me know. Thanks!
Marvin

I love dealer advice. If you haven't changed the trans fluid lately then do that. Either way, get a bottle of Lucas Oil Anti-slip fluid. And I am 95% sure that will work. $10 is better than $3,000.

TRamsmition module
 

2002 VW GTI 1.8 Turbo (automatic) 78500 miles
I have the same problem
When the car is warm it shifts but in the morning it wont.
Anybody speaks Spanish?

Welcome to the forum. Attachment 2541

You've dragged up an old thread.

Transmission Control Module (TCM) (J217)

https://volkswagenforum.com/forum/ne...gnature-34185/