Toyota Avalon (XX50): Front Speed Sensor

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Brake / Brake Control / Dynamic Control Systems / Front Speed Sensor

Components

COMPONENTS

ILLUSTRATION

*A	w/o AVS	*B	for A25A-FXS
*C	for 2GR-FKS	-	-
*1	FRONT FENDER LINER	*2	FRONT SPEED SENSOR
*3	FRONT WHEEL OPENING EXTENSION PAD	*4	FRONT FLEXIBLE HOSE
	Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": Nm (kgfcm, ft.*lbf)		Nm (kgfcm, ft.*lbf): Specified torque

ILLUSTRATION

*A	w/ AVS	-	-
*1	FRONT SPEED SENSOR	-	-
	Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": Nm (kgfcm, ft.*lbf)	-	-

Installation

INSTALLATION

CAUTION / NOTICE / HINT

HINT:

Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
The front speed sensor rotor is a component of the front axle hub sub-assembly. If the front speed sensor rotor is malfunctioning, replace the front axle hub sub-assembly.

PROCEDURE

1. INSTALL FRONT SPEED SENSOR (w/o AVS)

(a) Install the front speed sensor to the steering knuckle with the bolt.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

NOTICE:

Keep the tip of the front speed sensor and installation hole free of foreign matter.
Firmly insert the front speed sensor body into the steering knuckle before tightening the bolt.
After installing the front speed sensor to the steering knuckle, make sure that there is no clearance between the front speed sensor stay and steering knuckle. Also make sure that no foreign matter is stuck between the parts.
Do not twist the front speed sensor wire harness when installing it.

(b) Engage the clamp to install the sensor clamp.

NOTICE:

Do not twist the front speed sensor wire harness when installing it.

NOTICE:

Do not twist the front speed sensor wire harness when installing it.

(d) Install the front flexible hose with the bolt.

Torque:

29 N·m {296 kgf·cm, 21 ft·lbf}

(e) Install the sensor clamp with the bolt.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

NOTICE:

Do not twist the front speed sensor wire harness when installing it.

(f) Engage the clamp.

NOTICE:

Do not twist the front speed sensor wire harness when installing it.

(g) Connect the front speed sensor connector.

(h) Return the front fender liner to its original position.

2. INSTALL FRONT SPEED SENSOR (w/ AVS)

(a) Install the front speed sensor to the steering knuckle with the bolt.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

NOTICE:

Keep the tip of the front speed sensor and installation hole free of foreign matter.
Firmly insert the front speed sensor body into the steering knuckle before tightening the bolt.
After installing the front speed sensor to the steering knuckle, make sure that there is no clearance between the front speed sensor stay and steering knuckle. Also make sure that no foreign matter is stuck between the parts.
Do not twist the front speed sensor wire harness when installing it.

(b) Connect the front speed sensor connector.

3. INSTALL FRONT FENDER LINER (w/o AVS)

(a) Install the screw and 8 clips.

4. INSTALL FRONT WHEEL OPENING EXTENSION PAD (w/o AVS)

for A25A-FXS: Click here

for 2GR-FKS: Click here

5. INSTALL FRONT WHEEL

Click here

6. CHECK FOR SPEED SENSOR SIGNAL

for HV Model: Click here

for Gasoline Model: Click here

Removal

REMOVAL

CAUTION / NOTICE / HINT

HINT:

Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
The front speed sensor rotor is a component of the front axle hub sub-assembly. If the front speed sensor rotor is malfunctioning, replace the front axle hub sub-assembly.

PROCEDURE

1. REMOVE FRONT WHEEL

Click here

2. REMOVE FRONT WHEEL OPENING EXTENSION PAD (w/o AVS)

for A25A-FXS: Click here

for 2GR-FKS: Click here

3. SEPARATE FRONT FENDER LINER (w/o AVS)

(a) Remove the screw and 8 clips.

4. REMOVE FRONT SPEED SENSOR (w/o AVS)

(a) Turn back the front fender liner.

(b) Disconnect the front speed sensor connector.

(d) Remove the bolt and separate the sensor clamp.

(e) Remove the bolt and separate the front flexible hose and sensor clamp.

(f) Disengage the clamp to separate the sensor clamp.

(g) Remove the bolt and front speed sensor from the steering knuckle.

NOTICE:

Keep the tip of the front speed sensor and installation hole free of foreign matter.
Do not rotate or apply excessive force to the front speed sensor when removing it from the steering knuckle. Rotating or applying excessive force may result in damage to the front speed sensor.

5. REMOVE FRONT SPEED SENSOR (w/ AVS)

(a) Disconnect the front speed sensor connector.

(b) Remove the bolt and front speed sensor from the steering knuckle.

NOTICE:

Keep the tip of the front speed sensor and installation hole free of foreign matter.
Do not rotate or apply excessive force to the front speed sensor when removing it from the steering knuckle. Rotating or applying excessive force may result in damage to the front speed sensor.

VSC does not Operate or VSC does not Operate Correctly. VSC OFF Switch Circuit

Rear Speed Sensor

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