Vehicle Speed Sensor

Choose the sensor below for descriptions

1. Powertrain Control Module (PCM)
2. Throttle Position (TP) sensor
3. Mass Air Flow (MAF) sensor
4. Intake Air Temperature (IAT) sensor
5. Idle Air Control (IAC) valve
6. Engine Coolant Temperature (ECT) sensor
7. Heated Oxygen Sensor (HO2S)
8. Camshaft Position (CMP) sensor
9. Knock Sensor (KS)
10. Vehicle Speed Sensor (VSS)
11. Crankshaft Position (CKP) sensor
12. Fuel Injector
13. Coolant Temperature Sensor (CTS)
14. Exhaust Gas Recirculation (EGR)
15. Manifold Absolute Pressure (MAP)

Source: FreeAutoMechanic.com/car-engine-sensors.html

Vehicle Speed Sensor (VSS)

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. A faulty speed sensor due to loose connections, bad grounds, high resistance in the circuit, or opens in the circuit can cause the following symptoms.