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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Mechanical System (A25A-FXS) - Service Information (1 Of 3)) >> Rear Crankshaft Oil Seal >> Removal [11/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during rear crankshaft oil seal 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 Perform Vehicle Identification Number (VIN) registration DTC is output Refer to REGISTRATION [12/2019 - ]
Update ECU security key Vehicle Control History (RoB) are stored Refer to UPDATE ECU SECURITY KEY [11/2023 - ]
Gas leak from exhaust system is repaired Perform Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [10/2021 - ]
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 [11/2023 - ]
Replacement of hybrid vehicle transaxle assembly
  • Resolver learning
  • Initialize resolver
Replacement of front bumper assembly*1 Front television camera view adjustment Panoramic View Monitor System Refer to CALIBRATION [11/2023 - ]
Replacement or removal and installation of 2 or more parts: 
  • Front television camera assembly, radiator grille sub-assembly or front bumper assembly
  • Rear television camera assembly
  • Side television camera assembly LH or outer rear view mirror assembly LH
  • Side television camera assembly RH or outer rear view mirror assembly RH
Television camera view adjustment Panoramic View Monitor System Refer to CALIBRATION [11/2023 - ]
Suspension, tires, etc.*2 Rear television camera assembly optical axis (Back camera position setting) Parking Assist Monitor System Refer to CALIBRATION [10/2022 - ]
Parking assist ECU initialization Panoramic View Monitor System Refer to CALIBRATION [11/2023 - ]
w/ AFS: 
  1. Perform headlight ECU sub-assembly LH initialization
Lighting System (EXT) (w/ AFS) Refer to INITIALIZATION [11/2023 - ]
  • Replacement of headlight ECU sub-assembly LH
  • Replacement of headlight assembly LH*3
  • Synchronize the vehicle information
  • Perform headlight ECU sub-assembly LH initialization
Lighting System (EXT) (w/ AFS) Refer to INITIALIZATION [11/2023 - ]
Front wheel alignment adjustment Perform "Calibration".
  • DTCs are stored
  • ABS warning light illuminates
  • Brake system warning light (yellow indicator) illuminates
  • Slip indicator light illuminates
  • Electronically controlled brake system disabled or malfunctions
Refer to UTILITY [11/2023 - ]

*1: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.*2: If the vehicle height has changed due to suspension or tire replacement*3: w/ AFS

NOTE:

This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

Refer to PRECAUTION [11/2023 - ]

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
Lane Control System Perform steering sensor zero point calibration Refer to INITIALIZATION [12/2019 - ]
Pre-collision System
Lighting System (EXT) (w/ AFS)
LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Power Door Lock Control System Initialize back door lock Refer to INITIALIZATION [11/2023 - ]
Power Back Door System Reset back door close position Refer to INITIALIZATION [11/2023 - ]
Air Conditioning System After the ignition switch is turned to ON, the servo motor standard position is recognized. -