This is a REPAIR & RETURN SERVICE for repairing your 2007-2010 Toyota Sienna ECM having issues with the automatic transmission.
If you own a 2007-2010 Toyota Sienna (3.5L, V6), you may experience harsh shifting, among other symptoms that are caused by a failing ECM or ECU.
If you are experiencing issues with your Sienna’s transmission, DO NOT postpone the solution for this problem. Doing so may cause damage to the transmission. You are on time to service your ECM now before it is too late.
Always try fixing the ECM first, before repairing the transmission. It fixes the issue with the transmission in many of the cases. We can successfully repair and reprogram your Sienna’s ECM in no time and at a fraction of the price of a transmission replacement or overhaul.
You may experience one or more of the following symptoms if you have a failing ECM:
- Hesitation or harsh shifting, mostly from 2nd gear to 3rd gear.
- Slams into gear or makes noises when putting it in reverse.
- Sometimes the vehicle feels like braking by itself.
- Erratically shifts on an intermittent interval.
- Rattling or clicking noise from the engine area when the engine is running, even in neutral or Parking.
- Some days it fails and some other days it works with no issues.
- The problem shows only when warm, only when cold, or only when first used in the day.
- After a complete stop, the moment you start moving again it feels like towing a heavy load.
- Lower fuel economy than normal (consumes more gas than usual).
ECMs Affected (Part Numbers)
This is a partial list of the ECM part numbers affected. If you don’t see your ECM number in the table below please feel free to contact us for assurance.
89661-08170 | 89661-08180 | 89661-08240 | 89661-08250 |
89661-08270 | 89661-08271 | 89661-08280 | 89661-08281 |
590-51310B |
Models covered in this service
- 2007 Toyota Sienna CE, 3.5L 4-Door
- 2007 Toyota Sienna CE, 3.5L 5-Door
- 2007 Toyota Sienna LE, 3.5L 4-Door
- 2007 Toyota Sienna LE, 3.5L 5-Door
- 2007 Toyota Sienna XLE, 3.5L 4-Door
- 2007 Toyota Sienna XLE, 3.5L 5-Door
- 2008 Toyota Sienna CE, 3.5L 4-Door
- 2008 Toyota Sienna CE, 3.5L 5-Door
- 2008 Toyota Sienna LE, 3.5L 4-Door
- 2008 Toyota Sienna LE, 3.5L 5-Door
- 2008 Toyota Sienna XLE, 3.5L 4-Door
- 2008 Toyota Sienna XLE, 3.5L 5-Door
- 2009 Toyota Sienna CE, 3.5L 4-Door
- 2009 Toyota Sienna CE, 3.5L 5-Door
- 2009 Toyota Sienna LE, 3.5L 4-Door
- 2009 Toyota Sienna LE, 3.5L 5-Door
- 2009 Toyota Sienna XLE, 3.5L 4-Door
- 2009 Toyota Sienna XLE, 3.5L 5-Door
- 2010 Toyota Sienna CE, 3.5L 4-Door
- 2010 Toyota Sienna CE, 3.5L 5-Door
- 2010 Toyota Sienna LE, 3.5L 4-Door
- 2010 Toyota Sienna LE, 3.5L 5-Door
- 2010 Toyota Sienna XLE, 3.5L 4-Door
- 2010 Toyota Sienna XLE, 3.5L 5-Door
- 2007-2010 Toyota Sienna Limited 3.5L
This service covers the 2007-2010 automatic Sienna 3.5L V6 models, either 4WD (4 wheel drive or 4×4) or 2WD. The repair job, any needed parts, and the programming are included. For this low price you will have:
- Your original ECM repaired
- The ECM will be already programmed
- It WILL include your VIN number
- and you won’t risk it buying a cheap replacement that will not be programmed, won’t have your VIN, and will most likely fail with the same issue soon or in the short run.
Our repair service gets rid of the problem for good and prevents imminent damage to your vehicle’s automatic transmission.
If the transmission is already damaged, you will need a good working ECM to avoid damaging a new, or a repaired transmission. This is ALWAYS the first step to take when repairing your car and as mentioned earlier, many cases are solved by just fixing the ECM alone.
Just mail us your ECM after completing your order and we will take care of it and ship it back to you. Most of the time this is done in only one business day.
After you reinstall your ECM, NO PROGRAMMING will be needed.
ECM Location
*** IMPORTANT NOTE ***
If your Sienna does not engage in reverse AT ALL, at that point, it means that the ECM is undoubtedly damaged, BUT the damage went beyond the ECM, into the transmission. The ECM controls all the forward gears (1st, 2nd, 3rd, and 4th), but it does not control the reverse. The reverse is purely mechanical. Even when it is sometimes affected by a damaged ECM, like bumping into gear when you put it in reverse, it is not controlled at all by the ECM. That means that the ECM must be repaired, but so does the transmission. A repaired ECM must be in place in order to avoid damaging a repaired or replaced transmission. In these cases, repairing your ECM will still always be the first step to take.
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