Info

If the 0000 display does not appear, there is an error (check with reference to the circuit diagram). It is possible to move on to the next testing step at any time. To do this, press the green key until the clear symbol appears.

Initiate the idle contact testing step. Display:

Press the accelerator pedal slightly. After approx. 20 mm, the LED must go out and the following display must appear.

Display:

If this is not the case, there is a fault in the area of the idle contact (see idle contact trouble-shooting).

Initiate the full load contact testing step. Display:

Press the accelerator pedal down slowiy until the full load position has been reached. At the same time, the LED must go out and the following display will appear.

Display:

If this is not the case, there is a fault in the area of the full load contact (see full load contact trouble-shooting).

Initiate the testing step for air-conditioning control to the LH control unit (terminal 15).

Display:

Set the air-distribution slide switch to up / down.

Switch on the air-conditioning system briefly (AC pushbutton). The LED must go out and the following display will appear.

Display:

If this is not the case, there may be a fault in the area of the air- conditioning system's wiring. In the event of an error, check with reference to the circuit diagram.

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