Toyota RAV4 3.5 2GR-FE Firmware 89663-42652

89663-42652 is cataloged as engine-control firmware for a Toyota RAV4 with the 3.5-liter 2GR-FE V6. The calibration identifier belongs to Toyota’s engine ECU software part-number family. The ECU manages engine operation by processing sensor inputs and controlling functions such as fuel injection and ignition timing.

What this calibration identifies

The filename RAV4 3.5 2GRFE 89663-42652.bin associates the binary with the RAV4’s 2GR-FE engine and identifies the calibration as 89663-42652. The complete identifier is important when comparing service or ECU records, since similar Toyota calibration numbers do not establish an exact match.

The catalog entry does not name a modified feature or describe a specific change made by this calibration. Its identifier therefore serves as a reference to the recorded engine-control software, rather than evidence of a particular performance modification or service-bulletin fix.