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. |
Turn ignition switch OFF. |
2. |
Disconnect the negative (-) battery cable. |
3. |
Disconnect the ECM connector (A) and TCM connector (B). |
4. |
Remove the TCM & ECM after removing the bolts (C) and nut (D).
TCM installation bolt/nut:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
|
|
5. |
Remove the TCM (B) after removing the bolts (A). |
1. |
Installation is reverse of removal.
A. |
In the case of the vehicle equipped with immobilizer or
button engine start system, perform "Key Teaching" procedure together.
(Refer to "Immobilizer" or "Button Engine Start System in BE group). |
B. |
After exchanging TCM, input the EOL (End of line).
(Refer to "Repair procedures" in this group) |
C. |
When replacing the TCM, reset the automatic transmissions values by using the GDS. |
D. |
Perform TCM learning after replacing the TCM. |
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1. TCM Connector and Terminal Function
2. TCM Terminal Function
Connector
PinDescriptionPinDescription1Battery power48-2Battery power49-3Power(IG 1)5027 Brake control solenoid valve4Ground51-5G ...
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 ...