FRONT ABS WHEEL-SPEED SENSOR INSPECTION

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Sensor Output Value Inspection

Caution

• Performing the resistance inspection using a tester may cause damage to the ABS wheel-speed sensor internal circuit.Be sure to use the M-MDS to inspect the ABS wheel-speed sensor.

1. Switch the ignition to off.

2. Connect the M-MDS to the DLC-2.

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3. Select the following PIDs using the M-MDS:

• WSPD_LF

(LF wheel-speed sensor)

• WSPD_RF

(RF wheel-speed sensor)

4. Start the engine and drive the vehicle.

5. Verify that the display of the M-MDS shows the same value as the speedometer.

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

Installation Visual Inspection

1. Inspect the following items:

• If there is any malfunction, replace the applicable part.

(1) Is there any looseness or play?

(2) Has the sensor been deformed?

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.

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Tightening torque

8—12 N·m {82—122 kgf·cm, 71—106 in·lbf}

Clearance Inspection

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

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• 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?

Clearance

0.9—1.6 mm {0.04—0.06 in}

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 FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)

4. Inspect the front wheel alignment. (See FRONT WHEEL ALIGNMENT [European (L.H.D., U.K.) Specs.].) (See FRONT WHEEL ALIGNMENT [Australian Specs. and General (L.H.D., R.H.D.) Specs.].)