The system panel is equipped with originalcomponents from the vehicle. In addition to three conventional glow plugs amodern glow plug with pressure sensor is installed in a pressure chamber. Inpractice, this glow plug measures the pressure in the engine combustion chamberby means of the built-in sensor, and reports it to the engine-controlelectronics. These pressure signals facilitate compliance with the increasinglystringent emission limits through the construction of a closed-loop control.Thus, a significantly expanded functionality is given in the modern dieselengine management. The system panel allows tests and measurements totemperature, pressure and sensor voltage. These can also be made visible on anoscilloscope.