Checking the signal voltage of the wheel speed sensor
Raise the vehicle and release the parking brake.
Disconnect the connectors of the integrated ABS control unit (HECU) and measure at the connector on the harness side.
Attention! Make sure the double connector lock is removed and the instrument probe is inserted from the wiring side (on the back of the connector). Connecting a probe directly to the connector pins may cause incorrect or insufficient contact in the connector.
Attention! Rotate the wheel at approximately 0.5 to 1 revolution per second and check the sensor signal voltage with a multimeter or oscilloscope.
Signal voltage
When measured with an oscilloscope: 130 mV or more (signal amplitude).