Siemens VDO DTCO 1381 - 12.2 Buffer battery

Service only
12.2 Buffer battery Maintenance and cleaning
12 - 4
© Siemens VDO Automotive AG Edition 07/2007
TD00.1381.00 132 102
12.2 Buffer battery
12.2.1 Instructions on buffer battery replacement
The buffer battery must be replaced in the following cases to ensure
reliable function of the DTCO 1381:
• During installation, activation or initial calibration if the pro-
duction date of the DTCO 1381 is more than 12 months ago.
• During every regularly inspection.
Production date DTCO 1381 The production date of the DTCO 1381 is shown on the packaging
and the model plate, coded as "MYY:
Replacement of the buffer battery in stored devices
To ensure the reliable function of stored DTCO 1381 units, the buffer
battery must be replaced in stored devices if the production date is
more than 24 months ago.
M = Month of production
A January G July
B February H August
C March J September
D April K October
E May L November
F June M December
YY= Year of production
04 2004 07 2007
05 2005 08 2008
06 2006
… …