Toyota Hilux 3.0 Firmware 89663-0K173 for the 1KD-FTV
A catalog reference for Toyota Hilux 3.0 diesel calibration 89663-0K173, software update ID 30K17300 and engine ECU 89661-0K340.
89663-0K173 is an engine-control calibration identifier associated with the Toyota Hilux 3.0 and its 1KD-FTV diesel engine. It belongs to the engine ECU software family, rather than a separate body or chassis controller.
The engine ECU manages diesel injection and other engine operating functions using inputs such as engine speed, temperature and accelerator demand. Its calibration supplies the control data used to determine how the engine responds under different conditions. That makes the ECU relevant to starting, drivability, fuel delivery and emissions control.
How the identifiers relate
The catalog lists 89663-0K173 as the software calibration and 30K17300 as the software upgrade identifier. It also lists 89661-0K340 as the spare engine ECU part number. These identifiers describe different aspects of the same catalog entry and should be read together when checking an ECU or service record.
The available identifiers do not establish what changed in this particular calibration revision. No stock or modified variant label is listed, and the catalog entry does not specify a particular performance, emissions or drivability change.