The system of instrumentation (Fig. 1) is designed to control the operation mode of the units and individual assembly units of the vehicle, as well as determine the speed
Control and measuring devices consist of pointers and sensors. All indicators are installed on the instrument panel in the driver's cab, the sensors are located on the chassis and engine units.
The electrical connection of the devices is made according to a single-wire circuit.
The negative terminal is the instrument panel connected to the total mass of the vehicle; the devices are connected in parallel through the instrument and starter switch.
The functional diagram of instrumentation has a version for cars with two fuel tanks. This option is shown in Figure 2.