Toyota / Lexus / Scion · XL10 through XL40 · 1998–2026
Sienna 1998–2026 engine ECU part numbers
2 engines, 1 ECU part-number family. Find the controller your car runs, then clone it onto a donor or adapt it remotely.
Engines and their ECUs
| Engine | Engine codes | ECU family | Model code |
|---|---|---|---|
| 3.0 / 3.3 / 3.5 V6 (to 2020) | 1MZ-FE, 3MZ-FE, 2GR-FE, 2GR-FKS | Denso pre-CAN engine ECU → Denso Gen1 (NEC 76F00xx) → Denso Gen2 (D76F01xx / 02xx); Denso Gen3 (Renesas R7F7012xx, RH850) on 2017–2020 | |
| 2.5 hybrid (2021+) | A25A-FXS | Denso Gen3 (Renesas R7F7012xx, RH850) |
3.0 / 3.3 / 3.5 V6 (to 2020)
1MZ-FE, 3MZ-FE, 2GR-FE, 2GR-FKS
Denso pre-CAN engine ECU → Denso Gen1 (NEC 76F00xx) → Denso Gen2 (D76F01xx / 02xx); Denso Gen3 (Renesas R7F7012xx, RH850) on 2017–2020
2017+ Siennas are Gen3 — confirmed by label before payment.
The model code is the family-level part of the label (for example 89661-06X91). A donor must match the full number, which we confirm against your VIN for free before you buy.
Clone the Sienna 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
Which engine ECU does a 1998–2026 Sienna have?
It depends on the engine. The 3.0 / 3.3 / 3.5 V6 (to 2020) (1MZ-FE, 3MZ-FE, 2GR-FE, 2GR-FKS) runs Denso pre-CAN engine ECU → Denso Gen1 (NEC 76F00xx) → Denso Gen2 (D76F01xx / 02xx); Denso Gen3 (Renesas R7F7012xx, RH850) on 2017–2020, model code 89661-08. The 2.5 hybrid (2021+) (A25A-FXS) runs Denso Gen3 (Renesas R7F7012xx, RH850), model code 89661-08. The label on your module settles it in seconds.
Can you clone the ECU on a Sienna XL10 through XL40?
Yes — every engine ECU on this generation is a routine bench clone. Mail your original and a donor with the same full part number and we copy the VIN, immobilizer data, coding and adaptations across for $350 flat, typically within 24 hours of arrival.
Will a cloned Sienna ECU need dealer adaptation?
Usually not — it leaves the bench carrying your VIN, immobilizer data, coding and adaptations. If the car still asks for an on-car step, we run it remotely with Techstream over your J2534 interface for $250.