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DU (Display Unit)
The DU is an computerized instrument panel which shows engine working values on an LCD screen. In the display it is possible to show multiple windows with dif- ferent information, i. g. engine rpm, coolant tempera- ture, fuel consumption and fault messages.
At start up, the display performs a self-test. If an con- stant signal is heard, the system has discovered a mal- function. The display will work but may act in an unex- pected way.
The DU is connected between the engine control unit and the CIU or DCU.