3.4 Calibration mode Operating the DTCO 1381
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© Siemens VDO Automotive AG Edition 07/2007
TD00.1381.00 132 102
3.4 Calibration mode
Authorized persons who are charged with calibration, activation,
testing, etc. will receive a workshop card. In addition to performing
workshop functions, the holder can also drive with this card.
If the authentication is positive, the following functions will be acti-
vated:
• Calibration
•Test
• Data download
3.4.1 Inserting workshop card
Fig. 3 - 1: Inserting workshop card
1. Switch ignition on (required only for ADR variant).
2. Eject any tachograph cards that may be already inserted.
3. Insert workshop card into card slot 1 with the chip facing up
(after insertion, the card will be automatically locked mechani-
cally).
• The subsequent procedure is menu-guided.
When the calibration mode is active, the display of the DTCO 1381
will show the pictogram "g".
The following description of "Inserting workshop card" is based on a
DTCO 1381 that is already activated.
For detailed information on activating the DTCO 1381, see chapter
9.3 "Performing the activation", page 9-8.
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