ECM Reset Memory Function (TC002-03)
Publication date: 2004-12-20Reference number: TC002-03
ECM RESET MEMORY FUNCTION
TECHNICAL SERVICE BULLETIN
Reference Number(s): TC002-03, Date of Issue:
December 20, 2004
Superceded Bulletin(s): TC002-03, Date of Issue:
June 10, 2003
| SCION: | 2004 - 2005 All Models |
| TOYOTA: | 2000 - 2005 All Models |
| SECTION: | TRANSMISSION & CLUTCH |
| COPYRIGHT: | © 2018 Toyota, USA License Agreement TMS1002 |
NOTE:
- December 20, 2004: Applicable Vehicles section has been updated - Scion vehicles added, 2004 and 2005 model years added, models and model years updated for various models; and Reset Procedure 2 has been revised.
- January 16, 2004: Tundra vehicles were added to the Applicable Vehicles chart.
- December 17, 2003: T-100 vehicles were removed from the Applicable Vehicles chart.
Previous versions of this TSB should be discarded.
Introduction
Whenever an automatic transmission is replaced, overhauled or individual components are replaced, use this procedure to clear Engine Control Module (ECM, SAE term: Powertrain Control Module, PCM) "Learned Values" to minimize subsequent performance concerns.
CAUTION:
Failure to follow the procedure below may lengthen the time to readjust the ECM "Learned Values," potentially resulting in performance concerns.
Required SSTs
NOTE:
Additional Diagnostic Tester Kits, CAN Interface Modules, Program Cards or other SSTs may be ordered by calling SPX/OTC.
Warranty Information
WARRANTY INFORMATION
| OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|
| N/A | Not Applicable to Warranty | -- | -- | -- | -- |
Applicable Vehicles
Refer to Reset Procedure 1 for the following vehicles with Electronically Controlled Automatic Transmissions:
APPLICABLE VEHICLES CHART (YEAR WISE)
| MODEL | ENGINE / DRIVETRAIN | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | ||
|---|---|---|---|---|---|---|---|---|---|
| 4Runner | 2UZ | -- | -- | -- | (1) | (1) | (1) | ||
| 4Runner | 1GR | -- | -- | -- | -- | -- | (1) | ||
| Avalon | -- | -- | -- | -- | -- | (1) | (1) | ||
| Camry | 3MZ | -- | -- | -- | -- | (1) | (1) | ||
| Camry | 2AZ | -- | -- | (1) | (1) | (1) | (1) | ||
| Celica | -- | (1) | (1) | (1) | (1) | (1) | (1) | ||
| Corolla | -- | -- | -- | -- | -- | (1) | (1) | ||
| ECHO | -- | (1) | (1) | (1) | (1) | (1) | (1) | ||
| Highlander | -- | -- | (1) | (1) | (1) | (1) | (1) | ||
| Land Cruiser | -- | -- | -- | -- | (1) | (1) | (1) | ||
| Matrix | 4WD | -- | -- | -- | (1) | (1) | (1) | ||
| RAV4 | -- | -- | (1) | (1) | (1) | (1) | (1) | ||
| Sequoia | -- | -- | -- | -- | -- | -- | (1) | ||
| Sienna | -- | -- | -- | -- | -- | (1) | (1) | ||
| Solara | 3MZ | -- | -- | -- | -- | (1) | (1) | ||
| Solara | 2AZ | -- | -- | (1) | (1) | (1) | (1) | ||
| Tacoma | 1GR | -- | -- | -- | -- | -- | (1) | ||
| Tundra | -- | -- | -- | -- | -- | -- | (1) | ||
| Scion xA | -- | -- | -- | -- | -- | (1) | (1) | ||
| Scion xB | -- | -- | -- | -- | -- | (1) | (1) | ||
| Scion tC | -- | -- | -- | -- | -- | -- | (1) | ||
|
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Refer to Reset Procedure 2 for the following vehicles with Electronically Controlled Automatic Transmissions:
APPLICABLE VEHICLES CHART (YEAR WISE)
| MODEL | ENGINE / DRIVETRAIN | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | ||
|---|---|---|---|---|---|---|---|---|---|
| 4Runner | 3RZ | (1) | -- | -- | -- | -- | -- | ||
| 4Runner | 5VZ | (1) | (1) | (1) | -- | -- | -- | ||
| 4Runner | 1GR | -- | -- | -- | (1) | (1) | -- | ||
| Avalon | -- | (1) | (1) | (1) | (1) | -- | -- | ||
| Camry | 5S | (1) | (1) | -- | -- | -- | -- | ||
| Camry | 1MZ | (1) | (1) | (1) | (1) | -- | -- | ||
| Corolla | -- | (1) | (1) | (1) | (1) | -- | -- | ||
| Land Cruiser | -- | (1) | (1) | (1) | -- | -- | -- | ||
| Matrix | FWD | -- | -- | -- | (1) | (1) | (1) | ||
| RAV4 | -- | (1) | -- | -- | -- | -- | -- | ||
| Sequoia | -- | -- | (1) | (1) | (1) | (1) | -- | ||
| Sienna | -- | (1) | (1) | (1) | (1) | -- | -- | ||
| Solara | 5S | (1) | (1) | -- | -- | -- | -- | ||
| Solara | 1MZ | (1) | (1) | (1) | (1) | -- | -- | ||
| Tacoma | 2TR | -- | -- | -- | -- | -- | (1) | ||
| Tacoma | -- | (1) | (1) | (1) | (1) | (1) | -- | ||
| Tacoma PreRunner | -- | (1) | (1) | (1) | (1) | (1) | -- | ||
| Tundra | -- | (1) | (1) | (1) | (1) | (1) | -- | ||
|
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Reset Procedure 1
- Connect the Toyota Diagnostic Tester to the vehicle.
- Reset the ECM (PCM). Refer to the procedures below.
- Start the engine and warm it up to normal operating temperatures before test-driving.
- Perform a thorough test drive with several accelerations from a stop with "light throttle" application until proper transmission shifting is verified.
Reset Procedure 2
- Disconnect the negative battery cable for 5 minutes.
- Reconnect battery cable.
- Start the engine and warm it up to normal operating temperatures before test-driving.
- Perform a thorough test drive with several accelerations from a stop with "light throttle" application until proper transmission shifting is verified.