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Help! 5L50E + PCS TCM-2000 controller setup

CadillacF1

New Member
Joined
Mar 2, 2025
Messages
3
Location
Enfield, CT
Hi all, I'm looking for some help with the setup of an older PCS TCM controller with the 5L50E transmission. This package is in a completely Frankenstein build, but I feel this was the right forum to join.

Engine - 4.6L from a 2004 XLR
Transmission - 5L50E
ECM - factory unit from a 2008 STS (I believe) reprogrammed with custom harness for necessary components only
TCM - PCS TCM-2000
TCM harness - TCM-4135

I have gone through the setup wizard in the software for this transmission, but she's not shifting. I have some other questions, but this is the current focus point.

I look forward to chatting!

Chris
 
Last edited:

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