Just ordered the Transmission Control Module for my 2002 w20 workhorse. Had the problem of the pcm/tcm fuse blowing. Unhooked tcm as you instructed and fuse no longer would blow, Your site says I am elgible for a $200.00 credit but gives me no directions how I should send it back and if I need to fill out any paperwork.
Thanks for your help. My order number is 118512. ( Rick Smith, 05/29/2026 )

I will email you the information.

I have a 2003 Chevy Silverado 2500 with 8.1 and allison trans. The 20amp PCM B fuse is blowing as soon as fuse is installed. Traced issue down to the TCM shorted and what is supposed to be a positive power wire from fuse box is grounded coming out the TCM. Unplugged the connector to TCM and fuse does not blow. I see you offer TCM repair service for $200. Is this a repairable TCM if i sent it to you?

thank you
Jason ( Jason Ingram, 08/27/2024 )

Based on the description of your issue, this does sound like a TCM we can repair.

I have a W22 Chassis with 8.1 L engine and Allison Transmission. TCM-ECU 12V base TCM PN 29537441 customer P/N W0003647 blows 20A PCM/TCM fuse when plugged in disconnecct and no problem.
Question is do you repair this unit under your repair program?
Thanks
( Kenneth, 01/14/2024 )

Yes, we do.

Returns available?? ( Bill , 09/15/2023 )

This part is not eligible for return.

I have a 2004 2500 hd with allison, Can you reprogram the tcm to unlock the 6th gear like is being done with other companies with the duramax engines? The valve body gets replaced with new style and the tcm gets reprogrammed, I am looking to get my tcm reprogrammed as the rest of the work has been done. ( Daryl Reiter, 12/04/2022 )

Unfortunately, we are not able to reprogram for this. From what I understand, the companies doing this are physically changing components on the circuit board of the TCM in order to enable this function.