4WD CONTROL ECU REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during 4WD ECU assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Battery terminal is disconnected/reconnected	Memorize steering angle neutral point	LKA/LDA System	Click here
		Intelligent clearance sonar system*1
		Pre-crash safety system
		Lighting system (EXT) Cornering lights
		Adaptive high beam system
	Drive the vehicle until stop and start control is permitted (approximately 15 to 60 minutes)	Stop and start system	Click here
	Memorize steering angle neutral point	Parking Assist Monitor System (w/ Parallel Parking Assist Function)	Click here
		Parking Assist Monitor System (w/o Parallel Parking Assist Function)	Click here
		Panoramic view monitor system	Click here
	Initialize back door lock	Power door lock control system	Click here
	Reset back door close position	Power back door system	Click here
4WD ECU assembly (When replaced with a known good one from another vehicle)*2	Clear zero point calibration data	Dynamic torque control AWD system	Click here

*1: When performing learning using the GTS.

Click here

*2: When the 4WD ECU assembly is replaced with a new one, calibration is unnecessary.

PROCEDURE

PRECAUTION

Note

After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

Click here
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

Note

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Click here
REMOVE FRONT DOOR SCUFF PLATE RH
- w/o Rear No. 2 Seat
  
  Click here
- w/ Rear No. 2 Seat
  
  Click here
REMOVE COWL SIDE TRIM BOARD RH

Click here
REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here
REMOVE 4WD ECU ASSEMBLY
1. Disconnect the 4WD ECU assembly connector.
2. Remove the bolt and 4WD ECU assembly.