5. Disconnect the wiring connector from the control unit and measure the output voltage between the connector terminals on the wiring harness side (pic. 14.36).
Pic. 14.36. Checking the resistance and continuity between the wiring connector terminals on the harness side
6. Rotate the wheel at a speed of 0.5 to 1 rpm while measuring the output voltage of the wheel speed sensor.
Output voltage: when measured with a voltmeter: 50 mV or more, when measured with an oscilloscope: 120 mV (end to end) or more.
7. If the output voltage is lower than required, the cause may be a defective wheel speed sensor. In this case, the defective sensor must be replaced.
| Wheel speed sensor in | Front left wheel | Front right wheel | Rear left wheel | Rear right wheel |
| terminal no | 6 | 8 | 9 | 7 |
| 19 | 21 | 22 | 20 |