Mitsubishi 3000GT TCU Repair & Return Service

Repair and return service of your Mitsubishi TCU/TCM (transmission computer).

This is for the early to mid 90s Mitsubishi transmission control units.

Capacitors leaking onto the circuit board and causing problems with the function of the module is generally why you are here. It is usually going to be causing you "fail safe mode," with no shifting, and can cause other shifting issues as well.

Most units are repairable except for the '91 and '92 versions of the Stealth, 3000GT, and Diamante. Those are sometimes repairable, but more than half we see will have a blown processor.

Most repairs ship out the day after arrival. If you send in a unit that is not repairable, we refund everything but the shipping back to you.

Our work will replace the failing parts as well as some of the other components before they become a problem, to give it a longer life. The capacitor failure is not something that will happen again. It is specific to the original factory parts, so it isn't an issue after new parts are installed.

Part numbers include:

MD739228

MD740087

MD751888

MD755012

MD755013

MD756031

MD756032

MD758085

MD758086

Please include a note containing your contact information and symptoms in order to help expedite the process once we receive it. Any questions, please feel free to contact us.