Kia Niro: Dual Clutch Transmission Control System / DCT 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 recur, this is an intermittent problem and other part may be faulty.

Removal
1.

Disconnect the battery negative (-) cable.

2.

Disconnect the TCM connector (A).

3.

Remove the TCM after loosening the nuts (A).

Tightening torque :

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

Installaion
1.

Install in the reverse order of removal.

  

Perform the clutch touch point learning procedure using the KDS/GDS after replacing TCM.

DCT Control Module (TCM) Schematic diagrams
TCM Connector TCM Terminal Function Connector [A] Pin Description Pin Description 1 Clut ...

Clutch Actuator Assembly Components and components location
Components 1. Fork cover 2. Clutch actuator assembly 3. Extension connector 4. Motor 1 (Odd) 5. Motor 2 (Even) ...

Other information:

Kia Niro 2017 (DE HEV) Service Manual: Schematic diagrams
Schematic diagram Terminal Function NO. Terminal function 1 B+ 2 NC 3 NC 4 GND 5 NC ...

Kia Niro (DE HEV) Owners Manual: Driving on grades
Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don’t shift down, you might have to use your brakes so much that they would get hot and no longer operate efficiently. On a long uphill grade, shift down and reduce your speed to around 70 km/h (45 ...

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