Originally Posted by jon@work

Wheel Speed Sensor Circuits

1. Ensure ignition switched off
2. Disconnect ECU multi-plug
3. Connect ohmmeter between harness multi-plug terminals listed below:
LHF: 7 and 25
RHF: 5 and 23
LHR: 4 and 22
RHR: 6 and 24
4. Resistance should be 900 to 1400 ohms
5. If resistance not as specified:
- Disconnect the appropriate wheel sensor from the car loom.
- Measure resistance across wheel sensor at plug on end of sensor.
- If outside above range, replace wheel sensor.
- If OK, check wiring between sensor connection and ECU.