Indicator Lamps in Vehicles

An indicator lamp is a type of warning device that alerts the drivers of problems with various parts of their vehicles. Oil pressure, water temperature and the voltage are usually showed on the dashboard indicator lamps.

In case of a dangerous reading from a engine sensor, the indicator lamp starts to illuminate. In fact, most cars produced nowadays have the basic indicator lamps to show potential problems.

For all functions of the automotive engine, a sensor is there to transmit signals to the dashboard. The need of a system of warning lights and indicators is to allow the driver to understand how the engine is operating.

The sensors are usually programmed to send a signal to the indicator lamp when there is a non-standard sensor reading. This signal illuminates the warning light, telling the driver that there is a problem with the engine.