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Home >> Lexus >> 2021 >> ES 300h Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (A25A-FXS) - Service Information >> Engine Coolant Temperature Sensor >> Removal [06/2018 - 08/2020] >> Caution / Notice / Hint

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
Auxiliary battery terminal is disconnected/reconnected Perform steering sensor zero point calibration Lane Control System (for HV Model) Refer to INITIALIZATION [06/2018 - 08/2021]
Pre-collision System (for HV Model)
Parking Support Brake System (for HV Model)*
Lighting System (for HV Model)
Memorize steering angle neutral point Parking Assist Monitor System (for HV Model) Refer to INITIALIZATION [06/2018 - 09/2022]
Panoramic View Monitor System (for HV Model) Refer to INITIALIZATION [06/2018 - 09/2022]
Initialize power trunk lid system Power Trunk Lid System (for HV Model) Refer to INITIALIZATION [06/2018 - ]
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 [06/2018 - ]
Replacement of ECM Perform Vehicle Identification Number (VIN) registration MIL illuminates Refer to REGISTRATION [06/2018 - ]
Replacement of engine coolant temperature sensor Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [06/2018 - 07/2019] , or refer to INITIALIZATION [07/2019 - 08/2020]

*: When performing learning using the Techstream.

NOTE:
  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)