Calibration [12/2019 - ]

NOTE:

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 ECU Data Write.
When the front 4WD linear solenoid (transfer assembly) or rear 4WD linear solenoid (rear differential carrier assembly) is replaced, it is necessary to perform the following in order: ECU Data Initialization and Disconnect System Function Check.
When the temperature sensor is replaced, it is necessary to perform ECU Data Initialization.

PARTS REPLACEMENT COMPENSATION TABLE

Replaced Part	Necessary Procedure
4WD ECU assembly	ECU Data Save ECU Data Write
Front 4WD linear solenoid (transfer assembly)	ECU Data Initialization Disconnect System Function Check
Rear 4WD linear solenoid (rear differential carrier assembly)	ECU Data Initialization Disconnect System Function Check
Temperature sensor	ECU Data Initialization
Tire	ECU Data Initialization (When performing tire replacement after RoB code X2104 is output)

ECU DATA SAVE

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

Chassis > Four Wheel Drive > Utility

Tester Display
ECU Data Save

ECU DATA INITIALIZATION

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

Chassis > Four Wheel Drive > Utility

Tester Display
ECU Data Initialization

ECU DATA WRITE

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

Chassis > Four Wheel Drive > Utility

Tester Display
ECU Data Write

DISCONNECT SYSTEM FUNCTION CHECK

HINT:

Perform this work with 4 or more people as the tires need to be rotated by hand when working.

According to the display on the GTS, perform Disconnect System Function Check.

Chassis > Four Wheel Drive > Utility

Tester Display
Disconnect System Function Check

WARNING:

Do not hold the inside of the wheel when rotating the tire, as doing so could pinch your fingers.

NOTE:

If disconnect switching fails, perform the same procedure. If it fails again, inspect the part.
When replacing the front 4WD linear solenoid (transfer assembly):

Refer to INSTALLATION [12/2019 - 10/2022] , or refer to INSTALLATION [10/2022 - ]

When replacing the rear 4WD linear solenoid (rear differential carrier assembly):

Refer to INSTALLATION [12/2019 - ]
If the wheels cannot be rotated at a suitable speed when performing this inspection, the inspection may not complete correctly and will need to be performed again.
If the rotational resistance is high when rotating the tire, continue to apply enough force to prevent the wheel from stopping.