Wheel Speed Sensor: Service and Repair

REMOVAL AND INSTALLATION

NOTE: The ABS rotors are integrated with the drive shaft and cannot be disassembled.

REMOVAL SERVICE POINT
<> FRONT ABS SENSOR/REAR ABS SENSOR REMOVAL

CAUTION: Be careful when handling the projection at the tip of the ABS sensor and the toothed edge of the ABS rotor so as not to damage them by contacting other parts.

INSTALLATION SERVICE POINT
>>A<< REAR ABS SENSOR INSTALLATION

Install the rear ABS sensor, crossing with the parking brake cable as shown.

INSPECTION
ABS SENSOR CHECK
1. Check whether any metallic foreign material has adhered to the projection at the ABS sensor tip. Remove any foreign material. Also check whether the pole piece is damaged. Replace it with a new one if it is damaged.

NOTE: The projection can become magnetized due to the magnet inside the ABS sensor, causing foreign material to easily adhere to it. The projection may not be able to correctly sense the wheel rotation speed if foreign matter is on it or if it is damaged.

2. Measure the resistance between the ABS sensor terminals.
Standard value: 1.24 - 1.64 kOhms
3. If the internal resistance of the ABS sensor is not within the standard value, replace it with a new ABS sensor.

4. Remove all connections from the speed sensor. The circuit should be open between terminals (1) and (2) and the body of the ABS sensor. If the circuit is not open, replace with a new ABS sensor.
5. Check the ABS sensor cable for breakage, damage or disconnection. Replace with a new one if a problem is found.

NOTE: When checking for cable damage, remove the cable clamp part from the body and then gently bend and pull the cable near the clamp.

TOOTHED ABS ROTOR CHECK

Check whether the ABS rotor teeth are broken or deformed. Replace the EBJ assembly of the driveshaft, respectively, if the teeth are damaged or deformed.