Wheel Speed Sensor Check
SENSOR CHECKChecking For Metallic Foreign Material On Wheel Speed Sensor Tip:
1. Check whether any metallic foreign material has adhered to the parts shown at the wheel speed sensor tip, and if so, remove it.
NOTE: The section shown can become magnetized because of the magnet built into the wheel speed sensor with the result that foreign metallic material is attached to it.
Measuring Resistance Between Wheel Speed Sensor Terminals:
2. Measure the resistance between the wheel speed sensor terminals.
Standard value: 1.0 - 1.2K
If the internal resistance of the wheel speed sensor is within the standard value, replace with a new wheel speed sensor.
3. Check the wheel speed 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 bend and pull the cable near the clamp to check whether or not an intermittent contact results. Check the connector connection and the terminal insertion.
Measuring Resistance Between Terminals (1) & (2) And Body Of Wheel Speed Sensor:
INSULATION CHECK
1. Remove all connections from the wheel speed sensor, and then measure the resistance between terminals (1) and (2) and the body of the wheel speed sensor.
Standard value: 100K or more
2. If the wheel speed sensor insulation resistance is outside the standard value range, replace with a new wheel speed sensor.