Transaxle Control Module(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.
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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. |
Turn ignition switch OFF. |
2. |
Disconnect the negative (-) battery cable. |
3. |
Disconnect the TCM connector (A). |
4. |
Remove the Transaxle Control Module(TCM) (C) after removing the mounting bolts (A) and nut (B).
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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1. |
Installation is reverse of removal.
In the case of the vehicle equipped with immobilizer or button engine start system, perform "Key Teaching" procedure together.
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TCM connector and terminal function
TCM Terminal Function
Connector [ELG-A]
PinDescriptionPinDescription1?51?2?52?3?53?4?54Sports mode down switch5?55?6?56?7?57?8?58?9CCP CAN(HIGH)59?10CAN Commu ...
Description
Transaxle oil temperature sensor monitors the automatic
transaxle fluid's temperature and conveys the readings to TCM. It is an
Negative Thermal Coefficient(NTC) sensor whose resist ...