89661-42E90 89663-42750 Denso GEN1 original ECU file – Lexus RX 3.5 273hp

Other SW versions on HW 89661-42E90

2 SW versions sit on this HW in the archive, 2 files in all: Lexus RX (1), Toyota RAV4 (1). This page is SW 89663-42750. A matching HW alone does not pick the file, so compare the SW your tool reads with the list.

SW numbers next to 89663-42750

The closest SW numbers in the archive, by spelling. They are other files, not equivalents. Worth a look when a digit may have been misread.

Other numbers for the Lexus RX 3.5 273hp

19 files cover exactly this car and engine, on Denso GEN1 (16), Denso, type not listed (3). If your ECU reads differently from this page, 12 of the others:

This ECU and car in figures

Denso GEN1: 2 753 files, 2 709 SW numbers, 331 with a map pack. Makes: Toyota (2 169), Lexus (425), Hino (113), Toyota BUS (38). Most listed: Toyota Hilux (322), Toyota Land Cruiser (279), Lexus IS (171), Toyota Corolla (145).

Lexus RX: 135 files. ECU types: Denso D76F019XXX (56), Denso GEN1 (53), Denso, type not listed (26). Engine codes: 2GR-FE (28), 8AR-FTS (17), 1AR-FE (10), 2GR-FKS (9).

Engine code 2GR-FE: 110 files, on Denso GEN1 (70), Denso, type not listed (37), Denso D76F019XXX (3). Listed for Lexus RX (28), Toyota Alphard (16), Toyota Camry (15), Toyota Sienna (8).

914 of the 914 files here with HW 8966… are Denso units.

5 122 of the 5 122 files here with SW 8966… are Denso units.