Hyundai Genesis: Automatic Transmission Control System / Transmission Control Module (TCM) Description and Operation
Transmission Control Module (TCM) plays a role of the brain
for the automatic transmission. The module receives and processes
signals from various sensors and implements a wide range of Transmission
controls to ensure optimal driving conditions for the driver.
TCM is programmed for optimal response to any on-road
situation. In the event of a transmission failure or malfunction, TCM
stores the fault information in memory so that the technician can refer
to the code and quickly repair the transmission.
Functions
• |
Monitoring the vehicle's operating conditions to determine the optimal gear setting. |
• |
Performing a gear change if the current gear setting differs from the identified optimal gear setting. |
• |
Determining the need for damper clutch (D/C) activation and engages the clutch accordingly. |
• |
Calculating the optimal line pressure level by constantly monitoring the torque level and adjusts the pressure accordingly. |
• |
Diagnosing the automatic transmission for faults and failures. |

Components Location
[Vehicle Components]
1. Transmission Control Module(TCM)2. Injector Driver Box(IDB)3. Engine Control Module(ECM)4. Shift lever5. Date Link Connector (DLC)
[Transmission ...
1. TCM Connector and Terminal Function
2. TCM Terminal Function
Connector
PinDescriptionPinDescription1Battery power48-2Battery power49-3Power(IG 1)5027 Brake control solenoid valve4Ground51-5G ...
Other information:
Replacement
•
When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.
•
Take care not to scratch the body surface.
1.
After loosening the mounting screw, remove the rear mud guard (A) by ...
Replacement
[LHD]
1.
Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported.
2.
Remove the front wheel and tire (A) from the front hub.
Be careful not to damage the hub bolts when removing the front wheel and tire.
3.
Remove ...