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Electrical systems – 5000
Diagnostic and troubleshooting
Option buttons check
Table 16: Option buttons check Element Segment Function
[S116] Segment on when option button 6 is pressed.
[S115] Segment on when option button 5 is pressed.
[S114] Segment on when option button 4 is pressed.
[S111] Segment on when option button 3 is pressed.
[S112] Segment on when option button 2 is pressed.
[S113] Segment on when option button 1 is pressed.
Display test mode
The digital display [A6] itself can be tested to verify all the segments of the display function correctly.
To select Display test mode carry out the following procedure:
•Ensure the battery is connected.
•Ensure the truck is switched off. Press on the keypad.
•Press and hold horn button S18 for at least 1 second, enter a valid PIN-code and then press on the keypad.
•Hold S18 depressed until “d” is displayed (Fig. 15), then release S18.
All number segments on the display and symbol lamps should flash sequentially (Fig. 16)