Kia Sportage: Automatic Transaxle Control System / Transaxle Control Module (TCM) Repair procedures

Kia Sportage QL (2015-2021) Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Transaxle Control Module (TCM) Repair procedures

Inspection
1.
TCM ground circuit test : Measure the resistance between TCM and chassis ground. (Inspect the terminal connected to the chassis ground with the back of harness connector as the inspection point of TCM side.)
Specification : Below 1Ω
2.
TCM connector test : Disconnect the TCM connector and visually check the ground terminals on TCM side and harness side for bent pins or poor contact pressure.
3.
If problem is not found in Steps 1 and 2, the TCM could be faulty.
If so, replace the TCM with a new one, and then check the vehicle again. If the vehicle operates normally then the problem was likely with the TCM.
4.
Reinspection of original TCM : Install the original TCM (probably broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original TCM with a new one.
If the problem does not reoccur, this is an intermittentproblem and other part may be faulty.
Removal
1.
Perform the oil pressure characteristics backup procedure using the KDS/GDS when replacing with a new TCM.

2.
Remove the battery.
(Refer to Engine Electrical System - "Battery")
3.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Disconnect the TCM connector (A).

5.
Remove the TCM (A) after loosening the bolt and nuts.
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

Installation
1.
Install in the reverse order of removal.
2.
Perform the oil pressure characteristics input procedure using the KDS/GDS when replacing with a new TCM.

Transaxle Control Module (TCM) Schematic diagrams
TCM Connector TCM terminal function Connector [A] Pin Description     1 Solenoi ...

Transaxle Oil Temperature Sensor Specifications
Specification Item Specification Type *NTC thermistor Temp.[(°C)°F] / Resistance (kΩ) (-40)-40 ...

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