STEERING CONTROL ECU REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the front steering control ECU removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure	Necessary Procedure	Effect/Inoperative when not Performed	Link
Disconnect cable from negative battery terminal	Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)	Stop and start system	Click here
	Memorize steering angle neutral point	LKA/LDA system	Click here
		Parking support brake system*
		Pre-collision system
		Adaptive high beam system
		Lighting system (EXT) Cornering lights
		Variable gear ratio steering system	Click here
		Parking assist monitor system	Click here
		Panoramic view monitor system	Click here
	Initialize rear door sunshade system	Rear door sunshade system	Click here
	Initialize power trunk lid system	Power trunk lid system	Click here
VGRS ECU (front steering control ECU)	Perform actuator angle neutral point calibration and initialization	Variable gear ratio steering system Steering wheel off-center DTCs are output	Click here

*: When performing learning using the GTS.
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Tech Tips

Use the same procedure for RHD and LHD vehicles.
The procedure listed below is for LHD vehicles.

PROCEDURE

PRECAUTION

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CAUTION:

Be sure to read Precaution thoroughly before servicing.

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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 notice before proceeding with work.

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REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY

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DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

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Note

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

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REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY

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REMOVE INSTRUMENT SIDE PANEL LH

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REMOVE LOWER NO.1 INSTRUMENT PANEL PAD SUB-ASSEMBLY

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REMOVE LOWER INSTRUMENT PANEL FINISH PANEL ASSEMBLY

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REMOVE GLOVE COMPARTMENT DOOR PAD PLATE

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REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY

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REMOVE FRONT STEERING CONTROL ECU
1. Fold back the floor carpet.
2. Disconnect the 4 connectors from the front steering control ECU.
3. Remove the 2 nuts and front steering control ECU.