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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 coolant 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
Replacement of ECM Update ECU security key Vehicle Control History (RoB) are stored Refer to UPDATE ECU SECURITY KEY [06/2024 - ]
Perform Vehicle Identification Number (VIN) registration DTC is output Refer to REGISTRATION [06/2024 - ]
Replacement of engine coolant temperature sensor Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [06/2024 - ]
Replacement of inverter with converter assembly Resolver learning
  • DTCs are stored
  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
  • Shock or vibration during acceleration
Refer to UTILITY [06/2024 - ]

HINT: 

When the cable is disconnected / reconnected to the auxiliary 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 DRIVEN

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Front camera system Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more. Refer to INITIALIZATION [06/2024 - ]
LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Power back door system Fully close the back door by hand.
Initialization is not necessary if the above procedures are performed while the back door is closed.
Refer to INITIALIZATION [06/2024 - ]
Air conditioning system After the ignition switch is turned to ON, the servo motor standard position is recognized. -


COMPONENTS (REMOVAL) 

Fig 1: Engine Coolant Temperature Sensor Removal Components
GTY1248862Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Procedure Part Name Code
1 DRAIN ENGINE COOLANT (for Engine) - - See step  1 -
2 INVERTER WITH CONVERTER ASSEMBLY G9200 - - -
3 ENGINE COOLANT TEMPERATURE SENSOR 89422A See step  3 - -
Non-reusable part - -