- TCM consists of the microcomputer and input/output connectors for signal and power supply.
- TCM controls the transmission by performing the following functions: power supply to the devices connected to the transmission, operation control for each solenoid valve and actuator, data receiving from each sensor, receiving of signals from the range sensors, paddle shifter, auto/manual range change switch and communication (CAN or hard wire) to C/U controlling other devices.
- TCM uses 3 different power supply routes to distribute power supply to each sensor.

  Sensor power supply 1 | Sensor power supply 2 | Sensor power supply 3
  - Output shaft speed sensor
  - Line pressure sensor
  - Clutch A pressure sensor
  - Clutch A speed sensor
  - 6th-Neutral position sensor
  - 2nd-4th position sensor
  - Range sensor power supply 1 (Range sensor No. 0, 1, 3, 5)
  - Clutch B pressure sensor
  - Clutch B speed sensor
  - 1st-Reverse position sensor 1
  - 1st-Reverse position sensor 2
  - 3rd-5th position sensor
  - Range sensor power supply 2 (Range sensor No. 2, 4)