Denso · petrol · 2005–2026
Toyota ECU 89661-04 xxx — Tacoma engine ECU (2005+)
Second- and third-generation Tacoma: 89661-04A30 (2005 4.0), 04D33 (2007–2009), 04D01 (2010–2011), 04J31 (2015–2016), 04M00 (2020–2023).
Models fitted with 89661-04
Tacoma
Second generation · 2005–2015
- 2.7 4-cyl · 2TR-FE
- 4.0 V6 · 1GR-FE
Tacoma
Third generation · 2016–2023
- 2.7 4-cyl · 2TR-FE
- 3.5 V6 · 2GR-FKS
Prefix-to-application pairing checked against published parts data on 2026-10-14.
Clone the 89661-04 ECU — $350 flat
Mail your original and a donor with the same full part number. VIN, immobilizer data, coding and adaptations are copied across on the bench, typically within 24 hours of arrival. Factory immobilizer stays on.
Toyota / Lexus / Scion engine ECU cloneOn-car software step — remote Techstream, $250
Some cars still want an on-car step after a module swap — an ECU communication ID registration on a smart-key car, a calibration update, or a key registration. Plug a J2534 pass-thru interface into the car and we run the factory Techstream software on it from our bench — no dealer visit. The same session covers programming after any other Toyota or Lexus module replacement.
Book the Toyota / Lexus remote sessionFrequently asked questions
What is Toyota ECU part number 89661-04?
89661-04 is the model code of a Toyota / Lexus / Scion engine control unit in the Tacoma engine ECU (2005+) family (Denso), common on 2005–2026 petrol cars. Second- and third-generation Tacoma: 89661-04A30 (2005 4.0), 04D33 (2007–2009), 04D01 (2010–2011), 04J31 (2015–2016), 04M00 (2020–2023). The rest of the number selects the exact calibration.
Which models use a 89661-04 ECU?
In the US: Tacoma Second generation (2005–2015); Tacoma Third generation (2016–2023). Always confirm with the label — the same model year can carry a different family on another engine or build.
Can you clone a 89661-04 ECU?
Yes. Mail your original 89661-04 unit and a donor with the same full part number and we copy your VIN, immobilizer data, coding and adaptations onto the donor for $350 flat, typically within 24 hours of arrival, immobilizer intact. If the car then asks for an on-car step, the remote Techstream session over J2534 is $250.