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Home >> Toyota >> 2021 >> Corolla XLE >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Suspension System (Rear) - Service Information (2 Of 3) >> Rear Upper Arm >> Removal [11/2022 - ] >> 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 rear upper control arm assembly removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED (FOR HV MODEL:)

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Rear wheel alignment adjustment
  1. Perform "Reset Memory"
  2. 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 [09/2022 - ]
Gas leaks from exhaust system is repaired (2ZR-FXE) Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [09/2022 - ]
NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED (FOR GASOLINE MODEL:)

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Rear wheel alignment adjustment
  • Perform "Reset Memory"
  • Perform "Calibration"
  • VSC is disabled or malfunctions
  • DTCs are output
  • Slip indicator light illuminates
  • ABS warning light illuminates
w/ Electric Parking Brake System: Refer to UTILITY [11/2022 - ]
w/o Electric Parking Brake System: Refer to UTILITY [09/2022 - 09/2024] , or refer to UTILITY [09/2024 - ]
Gas leaks from exhaust system is repaired (M20A-FKS) Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [11/2022 - ]
Gas leaks from exhaust system is repaired (G16E-GTS) Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [09/2022 - ]
Tire ECU Data Initialization (When performing tire replacement after RoB code X2104 is output) Active Torque Split AWD System Refer to CALIBRATION [09/2022 - ]
WARNING:
  • Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair information.
    GTY588409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Refer to PRECAUTION [09/2022 - ]

  • To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.
    GTY588386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  • To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.
    GTY563662Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 15 km/h (9 mph) or more for 1 second or more. Refer to INITIALIZATION [11/2022 - ]