Of course, this is a maximum. It may, and usually does, take less than this time.
Engine Control Module (ECM/ECU) for the 2003 Toyota Corolla 1.8L Automatic transmission models. This ECM fits the Toyota Corolla and Corolla CE trims with the 1ZZ-FE engine.
This ECM is used, in good condition, and has been refurbished.
NO CORE NEEDED! No need to send us your old ECM.
Part# 89666-02153
Exchange (compatible) part numbers
| 89666-02150 | 89666-02151 | 89666-02152 | 89666-02153 | 89666-02154 | 590-59463 |
Why buy from us
We offer quality items backed by a great warranty. We tested these ECMs and updated their calibration. You will get the best value on these ECMs when you buy from us.
Programming
No key programming is needed. These Corolla models do not come with an immobilizer system.
Identifying the part number
The part number of your ECM is located on the label in its metal case, as shown below:


Before ordering, always make sure your ECM part number matches this ECM or one of the 100% exchange part numbers listed above on this page.
Covered Car Models (fitment)
List of vehicle models that this ECM will fit on:
- 2003 Toyota Corolla CE 1.8L 4 CYL Automatic (A/T) 1ZZ-FE engine
- 2003 Toyota Corolla 1.8L 4 CYL Automatic (A/T) 1ZZ-FE engine
ECM LOCATION:
The 2003 Toyota Corolla engine ECM is located under the right dash area (below the glove compartment area) as shown below.

Notes referring to common questions we receive
- This is a direct replacement for the 2003 Toyota Corolla ECM.
- All 5 ECM models in the list above are interchangeable, and you can replace any of them with this ECM (89666-02150, 89666-02151, 89666-02152, 89666-02153, and 89666-02154)
- ECM (Engine Control Module) and ECU (Engine Control Unit) are the same.
- No programming is needed for these models.
- The warranty for this unit is specified at the top of this page.
- We ship via USPS and FedEx.
- Shipping to the USA via USPS Priority Mail is FREE.
- When installing the ECM, it is always a good idea to disconnect the negative terminal of the vehicle battery.
- No core charges. You don’t need to send your old ECM back to us.
This is a refurbished product. It has been put back to factory functioning conditions and has been tested and made sure that it works as new. In addition, a reasonable warranty has been included for the peace of mind of our customers.
Some images shown here will be for the only purpose of identifying the product, while in some other cases, the images are the actual product images. That been said, the product you receive may vary slightly from the images shown here. Nevertheless, we always pick the best and cleanest one we have available at the moment of shipping your order :)
TAGS: 89666 02153, 8966602153, corolla ecm ecu



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