On-board computer control keys on release models from January 1988
- 1 - function selection key;
- 2 - data reset key;
- 3 - wiper switch lever.
Trip computer display on January 1988 production models
- 1 - function indicator;
- 2 - display;
- 3 - tachometer;
- 4 - function pointer.
The on-board computer is built into the instrument cluster. It has two control keys, placed on the production models before January 1988 in the central part of the instrument panel (see pos. 33 in fig. Dashboard of production models up to January 1988), and on production models from January 1988 - on the wiper switch lever (see pos. 28 in fig. Dashboard of production models since January 1988).
To switch functions, press the top or bottom of the key 1 (see fig. On-board computer control keys on release models from January 1988). At the same time, indicator 1 (see fig. Trip computer display on January 1988 production models) shows the selected function. Each time you press the key, the next function in order is activated. By pressing the key 2 Reset (see fig. On-board computer control keys on release models from January 1988) more than 2 s, the data of the selected function is reset in «memory» computer.
On-board computer functions
Fuel consumption (a computer with this function is installed on cars without turbocharging). Displays the current fuel consumption in l/100 km. The computer calculates the fuel consumption every 30 m of travel. After stopping the car, the last saved in «memory» meaning. The computer begins to show reliable information on fuel consumption after the vehicle has traveled 40 m. When you press the accelerator pedal on a stationary car with a running engine, the computer also shows false information (increased fuel consumption) due to the lack of data on the distance traveled.
boost pressure (a computer with this function is installed on vehicles with an MC model engine instead of a fuel consumption function)
Shows the boost pressure developed by the turbocharger between 0 and 2 bar.
Cruising range with remaining fuel in the tank
Shows the distance in kilometers that the car can travel on the remaining fuel with a constant driving style. This value is calculated based on fuel consumption over the last 30 km. With an estimated mileage of less than 50 km (fuel reserve in the tank) the computer automatically switches to this function from any other. At the same time, the number on the display starts flashing. After less than 5-8 liters of fuel remain in the tank, the indicator lights up instead of the range value «L» (empty tank). To turn off the warning signal, you need to press the Reset key. If there is a reserve fuel left in the tank, a warning signal will be automatically displayed each time the ignition is turned on.
The amount of fuel used
Shows the amount of fuel consumed since the engine was started in liters. After turning off the ignition, the last value is stored in the computer's memory. When the ignition is switched on again after the vehicle has driven 30 m, the old value is erased from «memory» and the fuel consumption is calculated again. The value can be reset by pressing the Reset key within 2 s.
Travel time
Shows the time the vehicle has been in motion since the last reset. When the ignition is off, the value is stored in «memory» computer and during further movement, this value is added to the time of movement after stopping. The value can be reset by pressing the Reset key for 2 s. After driving for 2 hours (with stops less than 10 minutes) the computer automatically switches to this function from any other. At the same time, the number on the display starts flashing (it is recommended to make a rest stop). When stopped for less than 10 minutes with the ignition on, the warning signal turns on again after 2 hours (stopping time is counted as driving time). When stopping for more than 10 minutes with the ignition off, the signal turns on 2 hours after the start of movement. To turn off the warning signal, you need to press the Reset key.
Average fuel consumption
Shows the average fuel consumption since the last reset. When the ignition is off, the value is stored in «memory» computer. The value can be reset by pressing the Reset key for 2 s. Before the car has driven the first 30 m, the computer shows zero. After 24 hours, the computer starts a new countdown.
Average moving speed
Shows the average speed since the last reset. When the ignition is off, the value is stored in «memory» computer and during further movement, this value is taken into account as the average speed of movement after a stop. The value can be reset by pressing the Reset key for 2 s.
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