ITEM
2006 Lexus IS250 A/T OEM Engine Computer 89661-53581 ECM VIN Included
DESCRIPTION
This IS250 ECM was refurbished, and the common transmission issues that affect these units have already been addressed. The adaptive memory was cleared so your ECM starts relearning from zero as soon as it is installed.
This unit has some dings and scratches, as shown in the picture. One of the tabs where the ECM mounts to the car was broken in shipping, but if you buy this unit, you can replace the metal case with your old ECM’s metal case. It is easy, and it is only about removing two Phillips screws, and your warranty won’t be voided by doing that.
Because of this broken tab, the price was lowered considerably, while keeping the 5 years warranty. It is less expensive than buying another marked-up ECM or paying to fix your actual ECM.
The VIN of your car will be programmed into the ECM before shipping it to you. To match this ECM to your car’s immobilizer system, a simple jumper tool is included in the package with instructions so you can do it yourself. It is easy, and the only tools needed are the jumper tool included and your keys or key fob.
COMPATIBILITY
The part numbers compatible with this unit are as follows:
| 89661-53580 | 89661-53581 | 89661-53582 |
| 89661-53583 | 275100-7991 | 590-50467 |
FITMENT
It fits the 2006 automatic Lexus IS250 2.5L, Rear Wheel Drive (RWD).
WARRANTY
This unit includes a 5-year warranty against defects, with the term of the warranty described at the top of this page.
ECM LOCATION
The ECM is located in the engine compartment, behind the left-hand headlight assembly (driver’s side).

SPECIAL INSTRUCTIONS
This ECM might need to be synchronized with your car’s immobilizer system, and you can easily do it yourself.
Here is how it works:
1. When ordering this ECM, please provide your car’s VIN in the provided form on the checkout page, so we can program it to the ECM before shipping it to you.
2. If you receive and install your programmed ECM and the engine starts, then you are done and ready to go. Otherwise, if the engine fails to start, then the immobilizer synchronization process must be done, so the ECM adapts to your car keys. In that case, please see #3 below.
3. With your ECM, you will also receive detailed instructions and the tool (jumper) to do the synchronization yourself in case it is needed. The process is easy, automated, and it takes about 30 minutes once it is started. No tools are needed other than the included jumper, your keys or key fob, and your car’s battery must be fully charged.
It is a simple jumper that joins pin #4 and pin #13 from the diagnostic port for auto-programming, but in the package you will receive, we have included it as an OBD-II plug to make it easier for you.

WHAT’S IN THE PACKAGE?
-Refurbished ECM 89661-53581 for 2006 Lexus IS250
-OBD-II Immobilizer Sync Jumper Tool
-Detailed instructions
-Receipt of the order
QUESTIONS
For any questions about this product, please feel free to send them to us by clicking the “ASK ABOUT PRODUCT” tab on this page and filling out the short contact form.
TAGS: 2006 lexus is250 ecm, 89661-53581





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