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
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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:
Components Location
1. Rear shock absorber2. Rear upper arm rear 3. Rear trailing arm4. Rear assist arm5. Rear sub frame6. Rear upper arm front7. Rear stabilizer bar8. Rear lower arm
...
Description
The photo sensor is located in the right side of the inside rearview mirror.
he integrated rain sensor is located in the right side of the
inside rearview mirror. The integrated rain sensor is a multifunctional
sensor which combines the photo sensor and auto light sensor, and ha ...