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Home >> Toyota >> 2025 >> GR86 Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Service Information >> Engine Oil Temperature Sensor >> Removal [11/2021 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during engine oil temperature sensor removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Battery terminal is disconnected/reconnected Turn the ignition switch to ON, wait for 10 seconds or more, and start the engine. The electronic throttle system will initialized -
  • Let the engine run at idle until it fully warms up (the radiator fan turns 2 times or more) under no electrical load condition.
  • After connecting the ground terminal to the battery sensor, wait for 10 seconds or more and turn the ignition switch to ON.
The engine control system will initialized -
Set the clock to the current time. The clock on the meter display will initialized -
Set to the contents checked before disconnecting the battery. The EyeSight system will initialized -
  • Audio (settings that the customer set): Set to the contents checked before disconnecting the battery.
  • Navigation system (settings that the customer set): Time setting is not necessary because the time information is received via GPS.
  • Navigation system (settings that the customer set): Set the sound and other settings (items that were set in the selection) to the contents checked before disconnecting the battery.
The audio and visual system will initialized -
Perform the Bluetooth connection procedure between head unit (without navigation) and smartphone. The telematics system will initialized -
NOTE:

If the engine oil is spilt over exhaust manifold or the engine under cover, wipe it off with cloth to avoid emission of smoke or causing a fire.

HINT: 

When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Keyless Access System with Push Button Start
  • Push Button Start Function
  • Open and close the driver door
  • Engine start operation
Refer to INITIALIZATION [11/2021 - ]


COMPONENTS (REMOVAL) 

Fig 1: Engine Oil Temperature Sensor Removal Components
GTY1046895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Procedure Part Name Code
1 NEGATIVE BATTERY TERMINAL - - - -
2 AIR CLEANER ASSEMBLY - - - -
3 ENGINE OIL TEMPERATURE SENSOR 89429F - - -
Non-reusable part - -