Toyota Avalon (XX50): Ultrasonic Sensor(for Front)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Ultrasonic Sensor(for Front)

Components

COMPONENTS

ILLUSTRATION

*1

FRONT CENTER ULTRASONIC SENSOR

*2

FRONT CORNER ULTRASONIC SENSOR

Inspection

INSPECTION

PROCEDURE

1. INSPECT FRONT CENTER ULTRASONIC SENSOR

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (BI) - 6 (EI)

Always

10 kΩ or higher

4 (BI) - 1 (BO)

Always

Below 1 Ω

5 (SI) - 2 (SO)

Always

Below 30 Ω

6 (EI) - 3 (EO)

Always

Below 1 Ω

If the result is not as specified, replace the front center ultrasonic sensor.

*a

Component without harness connected

(Front Center Ultrasonic Sensor)

2. INSPECT FRONT CORNER ULTRASONIC SENSOR

(a) for RH Side:

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (BI) - 6 (EI)

Always

10 kΩ or higher

4 (BI) - 1 (BO)

Always

Below 1 Ω

5 (SI) - 2 (SO)

Always

Below 30 Ω

6 (EI) - 3 (EO)

Always

Below 1 Ω

If the result is not as specified, replace the front corner ultrasonic sensor RH.

*a

Component without harness connected

(Front Corner Ultrasonic Sensor RH)

(b) for LH Side:

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (BI) - 6 (EI)

Always

10 kΩ or higher

4 (BI) - 1

Always

Below 1 Ω

5 (SI) - 2

Always

Below 30 Ω

6 (EI) - 3

Always

Below 1 Ω

If the result is not as specified, replace the front corner ultrasonic sensor LH.

*a

Component without harness connected

(Front Corner Ultrasonic Sensor LH)

Installation

INSTALLATION

PROCEDURE

1. INSTALL FRONT CORNER ULTRASONIC SENSOR

HINT:

  • Use the same procedure for the RH side and LH side.
  • The following procedure is for the LH side.

(a) Engage the 2 claws to install the front corner ultrasonic sensor as shown in the illustration.

Install in this Direction

(b) Connect the connector.

2. INSTALL FRONT CENTER ULTRASONIC SENSOR

HINT:

  • Use the same procedure for the RH side and LH side.
  • The following procedure is for the LH side.

(a) Engage the 2 claws to install the front center ultrasonic sensor as shown in the illustration.

Install in this Direction

(b) Connect the connector.

3. INSTALL FRONT BUMPER ASSEMBLY

Click here

4. PERFORM CALIBRATION

for Gasoline Model: Click here

for HV Model: Click here

SST: 09989-00020

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 ultrasonic sensor 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

Link

  • Front bumper assembly
  • Ultrasonic sensor
  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

Front bumper assembly (w/ Panoramic View Monitor System)

Front television camera view adjustment

Panoramic View Monitor System

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

Link

  • Front bumper assembly
  • Ultrasonic sensor
  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

Front bumper assembly (w/ Panoramic View Monitor System)

Front television camera view adjustment

Panoramic View Monitor System

PROCEDURE

1. REMOVE FRONT BUMPER ASSEMBLY

Click here

2. REMOVE FRONT CENTER ULTRASONIC SENSOR

HINT:

  • Use the same procedure for the RH side and LH side.
  • The following procedure is for the LH side.

(a) Disconnect the connector.

(b) Disengage the 2 claws and remove the front center ultrasonic sensor as shown in the illustration.

Remove in this Direction

3. REMOVE FRONT CORNER ULTRASONIC SENSOR

HINT:

  • Use the same procedure for the RH side and LH side.
  • The following procedure is for the LH side.

(a) Disconnect the connector.

(b) Disengage the 2 claws and remove the front corner ultrasonic sensor as shown in the illustration.

Remove in this Direction

Television Camera(for Side)

Ultrasonic Sensor(for Rear)

See More:

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Heating / Air Conditioning: Front Blower Motor
ComponentsCOMPONENTS ILLUSTRATION *1 BLOWER MOTOR WITH FAN SUB-ASSEMBLY *2 NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY InstallationINSTALLATION PROCEDURE 1. INSTALL BLOWER MOTOR WITH FAN SUB-ASSEMBLY (a) Install the blower motor with fan sub-assembly with the 3 screws. NOTICE: Replace the blowe ...

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

© 2025 Copyright audio-visual-telematics.tavalon.net
0.146