Toyota Tundra 89663-0C552 Engine Calibration
A catalog reference for Toyota Tundra firmware 89663-0C552, associated with the 4.7-liter 2UZ-FE engine and two-wheel drive.
89663-0C552 is an engine control calibration cataloged for a Toyota Tundra with the 4.7-liter 2UZ-FE engine and two-wheel drive. It belongs to Toyota’s engine control software part-number family, rather than identifying a standalone mechanical component.
Engine control in the 4.7-liter Tundra
The engine control module uses calibration data to manage functions such as fuel delivery, ignition timing and emissions control. These functions affect how the V8 starts, idles and responds to the accelerator. The catalog filename associates this calibration with the 2UZ-FE and 2WD configuration, but it does not identify a model year or establish compatibility with a particular truck.
The entry appears as Tundra 4.7 2UZFE 2WD 89663-0C552.bin. It carries no named stock or modified variant and does not describe a change introduced by this specific revision. A vehicle’s existing calibration and identification details are therefore important when distinguishing it from other Tundra firmware records.