FRONT ABS WHEEL-SPEED SENSOR INSPECTION

Sensor Output Value Inspection

Caution

• Resistance inspection using other testers may cause damage to the ABS wheel-speed sensor internal circuit. Be sure to use the WDS or equivalent to inspect the ABS wheel-speed sensor.

1. Turn the ignition switch off.

2. Connect the WDS or equivalent to the DLC-2.

3. Select the following PIDs by WDS or equivalent.

• LF_WSPD:

(LF wheel-speed sensor)

• RF_WSPD:

(RF wheel-speed sensor)

4. Start the engine and drive the vehicle.

5. Verify that the display of the WDS or equivalent shows the same value as the speedometer.

• If there is any malfunction, replace the ABS wheel-speed sensor.

Installation Visual Inspection

1. Inspect for the following:

• If there is any malfunction, replace the part.

(1) Excessive play of the ABS wheel-speed sensor

(2) Deformation of the ABS wheel-speed sensor

Clearance Inspection

Preparation prior to inspection

1. Remove the ABS wheel-speed sensor. (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)

2. Remove the wheel hub, steering knuckle component. (See WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION.)

3. Install the ABS wheel-speed sensor to the removed wheel hub, steering knuckle component, and tighten to the specified torque.

7.6-10.4 N·m {78-106 kgf·cm, 67.3-92.0 in·lbf}

Clearance Inspection

1. Measure the gap between the ABS sensor rotor and ABS wheel-speed sensor using a feeler gauge.

• If not within the specification, verify the following items and repair or replace if necessary.

- Is there deformation or damage to the ABS sensor rotor?

- Is there deformation or damage to the ABS wheel speed sensor?

- Is there foreign material adhering?

1.88 mm {0.074 in} or less

Servicing after inspection

1. Remove the ABS wheel-speed sensor from the wheel hub, steering knuckle component.

2. Install the wheel hub, steering knuckle component. (See WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION.)

3. Install the ABS wheel-speed sensor. (See WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION.)

4. Inspect the front wheel alignment. (See FRONT WHEEL ALIGNMENT.)