Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000025HG4
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: GF1A (TRANSFER / 4WD / AWD): ACTIVE TORQUE SPLIT AWD SYSTEM: CALIBRATION; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]

CALIBRATION

NOTICE:

  • When the 4WD ECU assembly is replaced, before removing the 4WD ECU assembly, it is necessary to perform ECU Data Save to save the original 4WD ECU assembly information.
  • When the 4WD ECU assembly is replaced, it is necessary to perform the following in order: ECU Configuration and ECU Data Write.
  • When the 4WD linear solenoid (electro magnetic control coupling sub-assembly) is replaced, it is necessary to perform ECU Data Write (when replacing 4WD linear solenoid (electro magnetic control coupling sub-assembly)).
  • When the yaw rate and acceleration sensor (airbag sensor assembly) is replaced, it is necessary to perform ECU Data Initialization.

    Parts Replacement Compensation Table

    Replaced Part

    Necessary Procedure

    4WD ECU assembly
    1. ECU Data Save (ECU being replaced)
    2. ECU Configuration (New ECU)
    3. ECU Data Write (When replacing 4WD ECU assembly) (New ECU)

    4WD linear solenoid (electro magnetic control coupling sub-assembly)
    1. ECU Data Write (When replacing 4WD linear solenoid (electro magnetic control coupling sub-assembly))

    Yaw rate and acceleration sensor (airbag sensor assembly)
    1. ECU Data Initialization

    Tire
    1. ECU Data Initialization (When performing tire replacement after RoB code X2104 is output)

ECU DATA SAVE

(a) According to the display on the GTS, perform ECU Data Save.

*1

4WD linear solenoid (electro magnetic control coupling sub-assembly) compensation code label

HINT:

If the compensation code cannot be read, record the compensation code (4 digits in 8 blocks) on the electro magnetic control coupling sub-assembly compensation code label.

Chassis > Four Wheel Drive > Utility

Tester Display

ECU Data Save

(b) According to the display on the GTS, complete work.

ECU DATA INITIALIZATION

(a) According to the display on the GTS, perform ECU Data Initialization.

Chassis > Four Wheel Drive > Utility

Tester Display

ECU Data Initialization

(b) According to the display on the GTS, complete work.

ECU DATA WRITE (WHEN REPLACING 4WD ECU ASSEMBLY)

(a) According to the display on the GTS, perform ECU Data Write.

Chassis > Four Wheel Drive > Utility

Tester Display

ECU Data Write

(b) According to the display on the GTS, complete work.

ECU DATA WRITE (WHEN REPLACING ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY)

(a) Record the printed compensation code (4 digits in 8 blocks) of a new electro magnetic control coupling sub-assembly.

*1

4WD linear solenoid (electro magnetic control coupling sub-assembly) compensation code label

(b) According to the display on the GTS, perform ECU Data Write.

Chassis > Four Wheel Drive > Utility

Tester Display

ECU Data Write

(c) Using the on-screen buttons, input the compensation code.

(d) According to the display on the GTS, complete work.