Vehicle Speed Sensor In Combination Meter

Remove speed sensor. Connect positive battery lead to sensor terminal No. 1 (Black/Orange wire). Connect negative battery lead to sensor terminal No. 2 (Red/Black wire). Connect voltmeter positive lead to sensor terminal No. 3 (Green/Red wire) and negative lead to sensor terminal No. 2. Ensure a 0-11 volts or more change as sensor shaft is rotated. Voltage should change 20 times per each rotation. If sensor operation is not as specified, replace sensor.