Kia Forte: Transaxle Control Module (TCM) Description
Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Transaxle Control Module (TCM) Description
Transaxle Control Module (TCM) is the automatic transaxle's brain. The
module receives and processes signals from various sensors and implements a
wide range of transaxle 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 transaxle failure or malfunction, TCM stores the fault information
in memory so that the technician may reference the code and quickly repair the
transaxle.
Functions
| • |
Monitors the vehicle's operating conditions to determine the optimal
gear setting.
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| • |
Performs a gear change if the current gear setting differs from
the identified optimal gear setting.
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| • |
Determines the need for Damper Clutch (D/C) activation and engages
the clutch accordingly.
|
| • |
Calculates the optimal line pressure level by constantly monitoring
the torque level and adjusts the pressure accordingly.
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| • |
Diagnoses the automatic transaxle for faults and failures.
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Components Location
1. Automatic transaxle
2. Inhibitor switch
3. Transaxle Control Module (TCM)
4. Valve body cover
5. Solenoid valve connect
6. Oil temperature sensor
7. Valve body assembly ...
See also:
Power Door Lock Switch Inspection
Driver Door Lock Switch
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front door trim.
(Refer to Body - "Front ...
Troubleshooting
Symptom
Possible cause
Remedy
Tachometer does not operate
Cluster fuse (10A) blown
Check for short and replace fuse
CAN line faulty
...
SS-A Solenoid Valve(ON/OFF) Description
Shift Solenoid(SS) Valve-A is attached to the valve body and is an on/off
solenoid valve that is used to change gears. Shift Solenoid(SS) Valve-A is installed
at valve body.
...
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