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

Kia Carens RP (2013-2018) Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Transaxle Control Module (TCM) Repair procedures

Inspection

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.

Replacement

1.	Turn ignition switch OFF.

2.	Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System - "Air cleaner")

3.	Remove the battery. (Refer to Engine Electrical System - "Battery")

4.	Disconnect the TCM connector (A).

Remove the TCM (A) after removing the bolt and nut.

TCM installation bolt/nut:

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

Installation

Install in the reverse order of removal.

•	Perform the TCM adaptive values learning procedure after replacing the TCM.

•	After replacing the TCM, perform the ECM-related procedures. (Refer to Engine Control / Fuel System - "Engine Control Module")

Transaxle Control Module (TCM) Schematic diagrams

TCM connector and terminal function TCM Terminal Function Connector [A] Pin Description Pin Description ...

Transaxle Oil Temperature Sensor Description and operation

Description • The sensor used is a thermistor (NTC) in which resistance changes with temperature variation. • The TCM supplies ...

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