Hyundai Tucson: Automatic Transaxle Control System / Transaxle Control Module (TCM) Repair procedures
| 1. |
Turn ignition switch OFF. |
| 2. |
Disconnect the negative (-) battery cable. |
| 3. |
Remove the battery.
(Refer to Engine Electrical System - "Battery") |
| 4. |
Disconnect the TCM extension connector (A). 
|
| 5. |
Remove the TCM (A) after removing the mounting bolts and nut.
TCM installation bolt/nut:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
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|
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.
|
| 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).
|
| 1. |
Install in the reverse order of removal.
| • |
In the case of the vehicle equipped with immobilizer or button engine start system, perform "Key Teaching" procedure together.
(Refer to Body Electrical System - "Immobilizer System") |
| • |
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") |
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1. TCM Connector and Terminal Function
2. TCM Terminal Function
Connector [A]
PinDescriptionPinDescription1-54-2-55-3-56-4-57-5-58Sport mode down switch6-59Oil temperature sensor (+)7-60-8-61-9-6 ...
Description
Transmission Oil Temperature Sensor monitors the automatic
transmission fluid's temperature and conveys the readings to TCM. It is
an NTC (Negative Thermal Coefficient) sensor whose ...
Other information:
Hyundai Tucson (LM) 2010-2015 Owners Manual: Seat warmers
Seat warmers are provided to warm the seats during cold weather.
WARNING
The seat warmers can cause a SERIOUS BURN, even at low temperatures and especially
if used for long periods of time. Passengers must be able to feel if the seat is
becoming too warm so they can turn it off, if needed. Peo ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Output Speed Sensor Description and Operation
Description
The Output Speed Sensor is a vital unit that measures the
rate of rotation of the transmission's turbine shaft and output shaft,
and delivers the readings to the TCM.
The sensor provides critical input data that's used in
feedback control, damper clutch control, g ...
Transaxle Control Module (TCM) Schematic Diagrams
Transaxle Oil Temperature Sensor Description and Operation