Description
Shipping Instructions
As of May 1st, 2025, we are no longer allowing ANY repairs to go through this. If you would like a repair there is a seperate repair fee. Please file a warranty and indicate that it is out of warranty and needs to be repaired. Please file a warranty here: https://www.tcsdcc.com/product-page/warranty
This upgrade program will update your WOW121-Diesel decoder to the latest production version available from TCS. As part of the upgrade process, following this registration you MUST return the decoder to TCS headquarters for updating. See the Shipping Instructions tab for more information.