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.
Specification: Below 1?
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.
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Disconnect the ECM Connector (A).
3.
Remove the battery.
(Refer to "Charging System" in EE group)
4.
Remove the mounting bolts (A) and a nut (B), and then remove the ECM (C).
Installation
1.
Install in the reverse order of removal.
•
Perform Transaxle Control Module (TCM) learning after
replacing the TCM prevent slow transaxle response, jerky acceleration
and jerky startup.
(Refer to "Repair procedures" in Automatic Transaxle Control System of this group)
•
After replacing the TCM, perform the ECM-related procedures.
1. TCM connector and terminal function
2. TCM Terminal Function
Connector [A]
PinDescriptionPinDescription1?54?2Line pressure control solenoid valve (LINE_VFS)55?3Torque converter control solen ...
Description
Transaxle oil temperature sensor monitors the automatic
transaxle fluid''s temperature and conveys the readings to TCM. It is an
NTC (Negative Thermal Coefficient) sensor whose resi ...