PSI TCM-2650 GM 6L80/90E and 8L90E Transmission Controller w/ Harness

PSI TCM-2650 GM 6L80/90E and 8L90E Transmission Controller w/ Harness

The TCM-2650 Transmission Controller is designed for applications where a standalone transmission controller cannot directly control the transmission. It allows compatible GM transmissions and their factory transmission controllers to be used behind a wide range of engine combinations.

The system comes with a complete harness and the necessary software to program the TCM-2650 module. A throttle position signal and engine RPM are required for operation.

6L80E / 6L90E:

GM 6L80E and 6L90E transmissions contain the factory transmission control module inside the valve body. The TCM-2650 provides an all-in-one solution that allows the transmission and factory controller to be installed in a vehicle with different engine combinations while maintaining a fully functional transmission.

• Supports GM 6L80E and 6L90E Transmissions
• Works with the Transmission’s Factory Controller
• Can Be Programmed to Activate Two Additional Calibrations
• Additional Calibrations Include Shift Tables and Torque Converter Lockup Tables
• Can Be Used with Carbureted or Fuel Injected Engines
• Has Been Used with Cummins 2.8L, 4BT Diesel, and Gen 1, Gen 2, and Gen 3 GM Engine Applications

8L90E:

The GM 8L90E uses an external factory transmission control module, either a T87 or T87A. The TCM-2650 allows the 8L90E transmission and factory T87 controller to be installed with different engine combinations while maintaining a fully functional transmission.

• Supports GM 8L90E Transmissions
• 8L90E Must Be 2019 or Older
• Gen 1 Based with Either T87 or T87A

Transmission Compatibility:

• GM 6L50E
• GM 6L80E
• GM 6L90E
• GM 6T70E
• GM 6T75E
• GM 8L80E
• GM 8L90E

Parts Included:

• TCM-2650 Module
• Complete Harness
• Necessary Programming Software

Required Signals:

• Throttle Position Signal
• Engine RPM

Important Note:

The TCM-2650 is not a standalone transmission controller. It is designed for situations where the transmission’s factory controller is required and the transmission cannot be controlled directly by a standalone controller.