Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2010SIENNA FWD V6-3.5L (2GR-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTESTING AND INSPECTIONPROGRAMMING AND RELEARNING
2010 Toyota Sienna FWD V6-3.5L (2GR-FE)
Programming and Relearning
2010 Toyota Sienna FWD V6-3.5L (2GR-FE)SECTION Programming and Relearning
U151E AUTOMATIC TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: INITIALIZATION
1. RESET MEMORY
NOTICE:
* Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM.
* The RESET MEMORY can be performed only with Techstream.
HINT
The ECM memorizes the condition that the ECT controls the automatic transaxle assembly and engine assembly according to those characteristics. Therefore, when the automatic transaxle assembly, engine assembly, or ECM has been replaced, it is necessary to reset the memory so that the ECM can memorize the new information.
Reset procedure is as follows.
(a) Turn the ignition switch off.
(b) Connect Techstream to the DLC3.
(c) Turn the ignition switch to the ON position and push the Techstream main switch on.
(d) Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".
(e) Perform the reset memory procedure from the main menu.
CAUTION:
After performing the RESET MEMORY, be sure to perform the ROAD TEST Road Test described earlier.
HINT
The ECM is learned by performing the ROAD TEST.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.