Toyota Highlander 89663-0E431 Engine and Transmission Calibration
Explore Toyota Highlander 89663-0E431, an engine control calibration associated with 2GR-FKS V6 operation and transmission diagnostic updates.
Toyota 89663-0E431 is an engine control module calibration associated with the Highlander 3.5-liter 2GR-FKS V6. Toyota service records identify its full calibration ID as 896630E43100 and list it as an updated calibration in bulletins covering engine control and transmission-related diagnostic concerns.
What the calibration controls
The engine control module manages engine operation, including fuel delivery, ignition and emissions-related functions. It also coordinates with the automatic transmission control system. That coordination helps the vehicle manage engine torque during transmission operation and monitor conditions that can trigger a malfunction indicator light.
The catalog filename Highlander 3.5 2GRFKS 89663-0E431.bin identifies the Highlander, engine family and calibration number. It does not name a modified variant or a special feature.
Service bulletin context
Toyota bulletin T-SB-0122-20 lists 896630E43100 as an updated calibration for a malfunction indicator light concern involving diagnostic trouble codes P07407E and P27567F. These codes concern torque converter clutch and transmission fluid pressure control performance. In practice, the bulletin context relates to how the control system detects and reports those transmission-related conditions.
The same calibration also appears as an updated ID in T-SB-0001-18, which identifies the engine control module, and in T-SB-0194-17 for the 2017 Highlander. The available records do not describe the specific software changes in those two bulletins.
The multi-vehicle bulletins cover several Toyota models, including the Highlander and Sienna. That scope does not establish that this exact calibration fits every listed vehicle. The Highlander 3.5-liter 2GR-FKS catalog entry is the more specific application association for this record.