The Vehicle Speed Sensor (VSS) is a magnetic pick-up that sends a signal to the Powertrain Control Module (PCM). The sensor measures the rotation of the transmission and the PCM determines the corresponding vehicle speed.
- Turn the ignition switch to the OFF position.
- Disengage the wiring harness connector from the VSS.
Using a Digital Volt-Ohmmeter (DVOM), measure the resistance (DVOM ohmmeter function) between the sensor terminals. If the resistance is 190-250 ohms, the sensor is okay.