Siemens VDO DTCO 1381, Technical Description

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Service only
11.2 Calibration instructions Regularly inspection
11 - 8
© Siemens VDO Automotive AG Edition 07/2007
TD00.1381.00 13
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11.2.6 Pairing with the KITAS 2171
• The DTCO 1381 and the KITAS 2171 are paired together auto-
matically during activation (the first time a workshop card is
inserted).
• During the pairing process, the DTCO 1381 and the KITAS 2171
mutually authenticate each other and create a shared work key.
• "Manual" pairing (pairing with the aid of a test device) is possible
only by using a workshop card on an activated DTCO 1381.
• After three pairing processes, this function will be blocked for
security reasons. The workshop card must then be withdrawn
and re-inserted; i.e., the workshop card must be re-authenti-
cated.
• Each time a regularly inspection is performed, the DTCO 1381
and the KITAS 2171 must be manually paired for security
reasons.
Attention!
A power failure during the coupling can cause irreversible damage
to the KITAS 2171.
When coupling with the KITAS 2171 make sure that the DTCO 1381
is operated within the permissible voltage range!
The KITAS 2171 can be paired either with the TCO type MTCO 1324
or DTCO 1381.
With the first pairing, the KITAS 2171 is specified for one TCO type
and can be used only for this TCO type!