Vehicle Speed Sensor

Vehicle speed sensor is located on transmission/transaxle and contains a 3-pin electrical connector. Connect voltmeter and battery voltage and ground on electrical terminals of vehicle speed sensor. See Figure.
While rotating vehicle speed sensor shaft, ensure voltage changes from zero to at least 11 volts. Voltage should change 4 times per revolution of the shaft. Replace vehicle speed sensor if voltage does not change as specified. Remove test equipment.

Fig 1: Testing Vehicle Speed Sensor