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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 engine coolant temperature sensor (for Water Inlet Housing Side)
  • Replacement of engine coolant temperature sensor (for Cylinder Block Side)
  • Replacement of Engine coolant temperature sensor (for Outlet Side)
Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [02/2024 - ]

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.

ITEMS FOR WHICH LEARNING IS COMPLETED BY DRIVING THE VEHICLE

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 [02/2024 - ]
ITEMS FOR WHICH LEARNING IS COMPLETED BY OPERATING THE VEHICLE NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Air Conditioning System After the ignition switch is turned to ON, the servo motor standard position is recognized. -
Power back door system Fully close the back door by hand.
HINT: 
Initialization is not necessary if the above procedures are performed while the back door is closed.
Refer to INITIALIZATION [02/2024 - ]


COMPONENTS (REMOVAL) 

Fig 1: Engine Coolant Temperature Sensor Removal Components
GTY1225171Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Procedure Part Name Code
1 DRAIN ENGINE COOLANT - - See step  1 -
2 ENGINE COOLANT TEMPERATURE SENSOR 89422A See step  2 - -
3 ENGINE COOLANT TEMPERATURE SENSOR (for Water Inlet Housing Side) 89422 See step  3 - -
4 INTAKE MANIFOLD WITH INTERCOOLER ASSEMBLY - - - -
5 ENGINE COOLANT TEMPERATURE SENSOR (for Cylinder Head Side) 89422 See step  5 - -
6 ENGINE WITH TRANSMISSION - - - -
7 ENGINE COOLANT TEMPERATURE SENSOR (for Outlet Side) 89422A See step  7 - -
Non-reusable part - -