Buffer Battery; Instructions On Buffer Battery Replacement - Siemens VDO DTCO 1381 Technical Description

12.2 Buffer battery

12.2 Buffer battery

12.2.1 Instructions on buffer battery replacement

Production date DTCO 1381
12 - 4
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.
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.
The production date of the DTCO 1381 is shown on the packaging
and the model plate, coded as "MYY:
M = Month of production
A January
B February
C March
D April
E May
F June
YY= Year of production
04 2004
05 2005
06 2006
© Siemens VDO Automotive AG
Maintenance and cleaning
G July
H August
J September
K October
L November
M December
07 2007
08 2008
Edition 07/2007