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Kia Sorento: Transaxle Control Module (TCM) Installation - Automatic Transaxle Control System - Automatic Transaxle System - Kia Sorento XM 2011-2025 Service ManualKia Sorento: Transaxle Control Module (TCM) Installation

Second Generation XM (2011-2025) / Kia Sorento XM 2011-2025 Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Transaxle Control Module (TCM) Installation

  
When replacing the TCM, the vehicle equipped with the immobilizer must be performed procedure as below.
[In the case of installing used TCM]
1.
Perform "TCM Neutral mode" procedure with GDS.
(Refer to Body Electrical System - "Immobilizer System")
2.
After finishing "TCM Neutral mode", perform "Key teaching" procedure with GDS.
(Refer to Body Electrical System - "Immobilizer System")
[In the case of installing new TCM]
Perform "Key teaching" procedure with GDS.
(Refer to Body Electrical System - "Immobilizer System")
  
When replacing the TCM, the vehicle equipped with the smart key system (Button start) must be performed procedure as below.
[In the case of installing used TCM]
1.
Perform "TCM Neutral mode" procedure with GDS.
(Refer to Body Electrical System - "Immobilizer System")
2.
After finishing "TCM Neutral mode", insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the TCM learns the smart key information automatically.
[In the case of installing new TCM]
Insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the TCM learns the smart key information automatically.
1.
Install in the reverse order of removal.
TCM installation bolt:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m,7.2 ~ 8.7 lb-ft)
TCM bracket installation bolt/nut:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m,7.2 ~ 8.7 lb-ft)
  
•
Perform TCM learning after replacing the transaxle to prevent slow transaxle response, jerky acceleration and jerky startup.
(Refer to Automatic Transaxle Control System - "Repair procedures")
TCM Problem Inspection Procedure
1.
TEST TCM GROUND CIRCUIT: Measure resistance between TCM and chassis ground using the backside of TCM harness connector as TCM side check point. If the problem is found, repair it.
Specification: Below 1Ω
2.
TEST TCM CONNECTOR: Disconnect the TCM connector and visually check the ground terminals on TCM side and harness side for bent pins or poor contact pressure. If the problem is found, repair it.
3.
If problem is not found in Step 1 and 2, the TCM could be faulty. If so, make sure there were no DTC's before swapping the TCM with a new one, and then check the vehicle again. If DTC's were found, examine this first before swapping TCM.
4.
RE-TEST THE ORIGINAL TCM: Install the original TCM (may be broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original TCM with a new one. If problem does not occur, this is intermittent problem (Refer to “Intermittent Problem Inspection Procedure” in Basic Inspection Procedure).
Transaxle Control Module (TCM) Removal
   When replacing the TCM, the vehicle equipped with the immobilizer must be performed procedure as below. [In the ...

Transaxle Oil Temperature Sensor Description
Transaxle Oil Temperature Sensor(OTS) monitors the automatic transaxle fluid's temperature and conveys the readings to TCM. It is an Negativen Thermal Coefficient(NTC) sensor whose resist ...

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