Toyota Firmware 89663-0K802: Engine Control Calibration
A catalog reference for Toyota calibration 89663-0K802 and its likely engine control module family.
89663-0K802 is a Toyota calibration identifier in the 89663 part-number family, which is associated with engine control software. Its likely application is an engine control module, although the exact vehicle and engine cannot be established from the identifier alone.
What the calibration family controls
An engine control module uses sensor inputs to manage engine operation. Depending on the engine, its software can control fuel delivery, ignition timing or diesel injection, emissions functions and diagnostic monitoring. These are general roles of the controller family, not documented changes specific to calibration 89663-0K802.
The complete calibration identifier is important when comparing service or catalog records. A similar Toyota number does not establish that two calibrations have the same application or are interchangeable.