Transmission Control Module (TCM)
Location:
*Near the engine control module (ECM)
* Usually attached to the frame or body of the vehicle
Functions:
The TCM controls the electronic components of the transmission, including:
* Gear selector
* Solenoid valves
* RPM sensors
* Shift Solenoids
* Torque converter lock
Replacement:
Replacing the TCM usually requires:
* Battery disconnection
* Removing the transmission or part thereof
* TCM replacements
* TCM reconnection and training
TCM types for Chevrolet Orlando:
6-speed automatic transmission:
* GMF1-60EC
* GMF1-60ECS
8-speed automatic transmission:
* 8L90
* 8L90E
Notes:
*The exact TCM type may vary depending on the specific year and model of your Chevrolet Orlando.
*TCM related error codes can be read using a diagnostic scan tool.
* The TCM should be replaced by a qualified mechanic.