Eclipse FWD L4-1997cc 2.0L DOHC MFI (1997)
Wheel Speed Sensor: Component Tests and General Diagnostics
Wheel Speed Sensor
Measure Resistance Between Wheel Speed Sensor Terminals
RESISTANCE CHECK
1. Check whether any metallic foreign material has adhered to the parts shown in the illustration at the wheel speed sensor tip, and it so, remove it.
NOTE: The section shown in the illustration can become magnetized because of the magnet built into the wheel speed sensor, with the result that
foreign metallic material is attached to it.
2. Measure the resistance between the wheel speed sensor terminals. The standard value is 1000 - 1200 ohms. If the internal resistance of the wheel
speed sensor is not 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.
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. The standard value is 100,000 ohms or more.
2. If the wheel speed sensor insulation resistance is outside the standard value range, replace with a new wheel speed sensor.
Toothed Ring
Check ABS Rotor Teeth
Check whether ABS rotor teeth are broken or deformed, and, if so, replace the ABS rotor.
