Toyota Yaris 1.5 Firmware 89663-52R41

89663-52R41 is a Toyota Yaris 1.5 calibration identifier associated with the 1NZ-FE engine. The catalog filename Yaris 1.5 1NZFE 89663-52R41.bin identifies it as an engine control firmware file.

Engine control function

The engine control module uses calibration data to manage functions such as fuel injection and ignition timing. These controls help the engine respond to driving demands and operate within its emissions requirements. The identifier 89663-52R41 identifies this particular calibration, but it does not by itself describe a specific change to those functions.

The filename names the Yaris, 1.5-liter engine and 1NZ-FE engine family. It does not identify a stock or modified variant, a model year or a market. Those details should be checked against the vehicle’s existing control module identification when comparing a calibration.