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8 Appendix A
8.1 Abbreviations
Abbre-
viation
Meaning
Explanation
AC
Alternating Current
AdBlue -
Brand name of the German Association of Vehicle
Manufacturers (VDA)
Urea solution with 32.5% urea concentration
EGR
Exhaust gas recirculation
AL
Alarm
ANSI
American National Standards Institute
BDM
Backup Data Module
BR
Series
BV
Fluids and lubricants specification/preser-
vation specification
MTU publication no. A00..
CAN
Controller Area Network
Data bus system, bus standard
CaPoS Capacitor Power System
Capacitor-based starting system
CDC
Calibration Drift Compensation
Drift compensation must be reset in the engine con-
trol system using DiaSys® to ensure optimum emis-
sions and consumption characteristics.
CRC
Cyclic Redundancy Control
Check sum procedure to detect data transmission
faults
DC
Direct Current
DEF
Diesel Exhaust Fluid
Urea solution with 32.5% urea concentration
Designation used in North America
DIFF
Difference
DIN
Deutsches Institut für Normung e. V.
Also identifier of German standards (DIN = “Deut-
sche Industrie-Norm”)
DL
Default Lost
Alarm: Default CAN bus failure
DOC
Diesel Oxidation Catalyst
DPF
Diesel Particulate Filter
ECU
Engine Control Unit
Engine control system
ETC
Exhaust turbocharger
ETK
Spare parts catalog
FO
Frequency Output
GND
Ground
HP
High pressure
HI
High
Alarm: Measured value higher than 1st maximum
limit
HIHI
High High
Alarm: Measured value higher than 2nd maximum
limit
HT
High Temperature
ID
Identification number
MS15042/00E 2014-10
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