Wheel Speed Sensor: Service and Repair

WHEEL SPEED SENSOR

REMOVAL AND INSTALLATION

CAUTION
The vehicle speed detection encoder collects any metallic particle easily, because it is magnetized. Make sure that the encoder should not collect any metallic particle. Check that there is not any trouble prior to reassembling it.

Front Wheel Speed Sensor Removal Steps 1-6, Rear Wheel Speed Sensor Removal Steps 6-9:

INSTALLATION SERVICE POINTS

]]A[[ HARNESS CLIP INSTALLATION





Install the front wheel speed sensor to the harness clip as shown in the figure.

]]B[[ FRONT WHEEL SPEED SENSOR GROMMET/REAR WHEEL SPEED SENSOR GROMMET INSTALLATION





Install the front wheel speed sensor grommet and the rear wheel speed sensor grommet to the body panel snugly as shown in the figure.

INSPECTION

WHEEL SPEED SENSOR CURRENT CHECK





CAUTION
Do not connect the battery terminals in reverse as the wheel speed sensor may be damaged.

1. Connect the circuit tester to the wheel speed sensor using the special tool extra fine probe (MB992006), and measure the sensor current as a single unit.

Standard value: 5.9 to 8.4 mA or 11.8 to 16.8 mA

2. If the measurement value is not within the standard value range, replace the wheel speed sensor with a new one.

WHEEL SPEED SENSOR INSULATION CHECK





1. Connect the circuit tester to the wheel speed sensor using the special tool extra fine probe (MB992006), and measure the insulation resistance between terminal No. 1/2 and the wheel speed sensor body as a single unit.
Standard value: 5 M ohms or more

2. If the insulation resistance is not within the standard value range, replace the wheel speed sensor with a new one.