Toyota Highlander Hybrid 89663-0E261 Firmware
Catalog reference for Toyota Highlander 3.5-liter 2GR-FXE Hybrid firmware identified as 89663-0E261.
89663-0E261 is a Toyota engine control calibration identifier associated in this catalog with the Highlander Hybrid and its 3.5-liter 2GR-FXE V6. The corresponding file is named 89663-0E261.bin.
Engine control in the Highlander Hybrid
The engine control module manages functions such as fuel injection, ignition timing and engine operating conditions. In a hybrid vehicle, it also works with the hybrid control system, which coordinates when the gasoline engine is needed alongside the electric drive system.
The identifier places this file in the Toyota engine-control calibration family. It does not, by itself, establish a particular drivability improvement or a change made in this revision. The catalog entry does not name a modified variant or a specific feature.