The electronic devices in today's cars and motorcycles are extremely complex. However, the speedometer is one of the simplest devices we use to provide factual data. Essentially, the speedometer is powered by three separate components; the pulsar speedometer on the dashboard, the cable from the speedometer to the drive shaft, and the speedometer sensor connected to the driveshaft to measure speed. Some speedometer problems are caused by dirty or malfunctioning sensors, which relay erroneous data via cables and eventually display it on the dashboard.
The speedometer sensor is located in the vehicle's gearbox and is designed to record the speed of the drive shaft. The sensor transmits this information via the odometer cable to the vehicle's computer, which converts electrical pulses into digital speed. Eventually, the number will be displayed on the speedometer and tell you exactly how fast you are driving. If the lcd speedometer sensor is not working properly, the speedometer will be inaccurate; it may result in a speeding ticket or unsafe driving.