Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Clearance Warning Ecu / Removal

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 clearance warning ECU assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function When Necessary Procedures are not Performed
*: When performing learning using the Techstream. Click here
Disconnect cable from negative battery terminal	Perform steering sensor zero point calibration	Lane Departure Alert System (w/ Steering Control)
		Pre-collision System
		Intelligent Clearance Sonar System*
		Lighting System (for Gasoline Model with Cornering Light)
	Memorize steering angle neutral point	Parking Assist Monitor System
	Memorize steering angle neutral point	Panoramic View Monitor System
Replacement of clearance warning ECU assembly	Measure ultrasonic sensor detection angle Steering angle zero point learning Register bumper type Register ultrasonic sensor detection angle	Intelligent Clearance Sonar System Intuitive Parking Assist System

CAUTION:

Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

Click here

Necessary Procedure After Parts Removed/Installed/Replaced (for HV Model)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function When Necessary Procedures are not Performed
*: When performing learning using the Techstream. Click here
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane Departure Alert System (w/ Steering Control)
		Pre-collision System
		Intelligent Clearance Sonar System*
		Lighting System (for HV Model with Cornering Light)
	Memorize steering angle neutral point	Parking Assist Monitor System
	Memorize steering angle neutral point	Panoramic View Monitor System
Replacement of clearance warning ECU assembly	Measure ultrasonic sensor detection angle Steering angle zero point learning Register bumper type Register ultrasonic sensor detection angle	Intelligent Clearance Sonar System Intuitive Parking Assist System

CAUTION:

Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

Click here

PROCEDURE

1. REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY

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2. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY

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3. REMOVE ECU INTEGRATION BOX RH

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4. REMOVE CLEARANCE WARNING ECU ASSEMBLY

(a) Using a screwdriver with its tip wrapped with protective tape, disengage the claw and remove the clearance warning ECU assembly as shown in the illustration.

*a	Protective Tape
	Remove in this Direction

NOTICE:

If the ECU integration box is deformed or damaged, replace it.
Do not bend the claw more than necessary.

Installation

Intelligent Clearance Sonar System(for Gasoline Model)

See More:

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DESCRIPTION When the engine switch is turned on (IG), the battery voltage is applied to the IGSW terminal of the ECM. The output signal from the MREL terminal of the ECM causes a current to flow to the coil of the EFI-MAIN NO. 1 relay, closing the contacts and supplying power to terminals +B and +B2 ...

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

Installation

Intelligent Clearance Sonar System(for Gasoline Model)

See More:

Toyota Avalon (XX50) 2019-2022 Owners Manual

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual