Diagnostic Mode d:3
Checking the control unit requires the board computer to be in diagnostic mode 3.
The clock display shows "d : 3".
The function display at first remains blank.
If the start key is now pressed, "-" appears at the second position of the function display. The same display appears at the third position when the hours hole contact is pressed and at the fourth position when the minutes hole contact is actuated.
Checking the stepping key is not required, since this key is needed to select the diagnostic modes.
| Fehler! Datei kann nicht geöffnet werden! | |||
|---|---|---|---|
| .P. C6056.tif | 9 | 7,5 | tiff;; |
Trouble-shooting
- Prior to actuation of one of the operating keys, "-" appears at one or more positions:
1. Short circuit to ground of one or more leads between board computer and control unit.
2. Control unit defective
3. Board computer defective
- After actuation of the operating keys, no "-" appears at one or more positions:
1. Lead interruption of one or more leads between board computer and control unit
2. Control unit defective
| 3. Board computer defective | Fehler! Datei kann nicht geöffnet werden! | ||
|---|---|---|---|
| .P. C6057.tif | 9 | 7,5 | tiff;; |