List of Abbreviations 00.01 List of Abbreviations The following is a list of definitions for abbreviations and symbols used in Freightliner publications. A . . . . . . . . . . amperes AAVA . . . . . . auxiliary air valve assembly BBC . . . . . . . bumper-to-back-of-cab BHM . . . . . . . bulkhead module CWS . . . . . . . collision warning system DC . . . . . . . . . direct current ABS . . . . . . . antilock braking system BOC . . . . . . . back-of-cab DCDL . . . . . . driver-controlled differential lock ABS . . . . . . . acrylonitrile-butadiene-styrene A/C . . . . . . . . air conditioner BOM . . . . . . . bill of material BTDC . . . . . . before top dead center DDA . . . . . . .
Detroit Diesel Allison (obs) AC . . . . . . . . . alternating current acc . . . . . . . . accessories Btu(s) . . . . . British thermal unit(s) C . . . . . . . . . . common (terminal) DDC . . . . . . . Detroit Diesel Corporation DDDL . . . . . . Detroit Diesel Diagnostic Link ACM . . . . . . . aftertreatment control module CAC . . . . . . . charge air cooler DDE . . . . . . . Detroit Diesel Engines DDEC . . . . . Detroit Diesel Electronic (engine) Control ACPU . . . . . air conditioning protection unit ADLO . . . . . auto-disengagement lockout CAN . . . . . . . controller area network CARB . . . . . California Air Resources Board CAT . . . . . . . Caterpillar CB . . . . . . . . .
circuit breaker CB . . . . . . . . . citizens’ band CBE . . . . . . . cab behind engine CCA . . . . . . . cold cranking amperes CD-ROM . . compact-disc/read-only memory CDTC . . . . . . constant discharge temperature control CEL . . . . . . . check-engine light CFC . . . . . . . chlorofluorocarbons (refrigerant-12) cfm . . . . . . . . cubic feet per minute CFR . . . . . . . Code of Federal Regulations CGI . . . . . . . . clean gas induction CGW . . . . . . central gateway CHM . . . . . . . chassis module CIP . . . . . . . . cold inflation pressure CLS . . . . . . . coolant level sensor cm . . . . . . . . . centimeters cm 3 . . . . . . . . cubic centimeters CMVSS . . . .
Canadian Motor Vehicle Safety Standard DDR . . . . . . . diagnostic data reader AGM . . . . . . . absorbed glass mat AGS . . . . . . . automated gear shift AG2 . . . . . . . Aluminum Generation 2 a.m. . . . . . . . ante meridiem (midnight to noon) AM . . . . . . . . amplitude modulation amp(s) . . . . ampere(s) AMT . . . . . . . automated mechanical transmission AMU . . . . . . . air management unit ANSI . . . . . . American National Standards Institute API . . . . . . . . American Petroleum Institute API . . . . . . . . application programming interface ARI . . . . . . . . Air Conditioning and Refrigeration Institute ASA . . . . . . . American Standards Association ASF . . . . . . .
American Steel Foundries ASR . . . . . . . automatic spin regulator assy. . . . . . . assembly ASTM . . . . . American Society for Testing and Materials ATC . . . . . . . automatic temperature control DDU . . . . . . . driver display unit def . . . . . . . . defrost DEF . . . . . . . diesel exhaust fluid DFI . . . . . . . . direct fuel injection DGPS . . . . . differential global positioning system dia. . . . . . . . . diameter DIAG . . . . . . diagnosis DIP . . . . . . . . dual inline package (switch) DIU . . . . . . . . driver interface unit DLA . . . . . . . datalink adaptor DLM . . . . . . . datalink monitor DLU . . . . . . . data logging unit DMM . . . . . . digital multimeter DOC . . .
. . . . diesel oxidation catalyst DOT . . . . . . . Department of Transportation DPF . . . . . . . diesel particulate filter DRL . . . . . . . daytime running lights DRM . . . . . . . dryer reservoir module DSM . . . . . . . district service manager DTC . . . . . . . diagnostic trouble code DTC . . . . . . . discharge temperature control DTNA . . . . . . Daimler Trucks North America Co. . . . . . . . . company ATC . . . . . . . automatic traction control ATC . . . . . . . automatic transmission control COE . . . . . . . cab over engine Corp. . . . . . . corporation CPC . . . . . . . common powertrain controller DVOM . . . . . digital volt/ohm meter ea. . . . . . . . . . each EBS . . . . . . .
electronic braking system ECA . . . . . . . electric clutch actuator ATD . . . . . . . aftertreatment device ATF . . . . . . . . automatic transmission fluid ATS . . . . . . . aftertreatment system CPU . . . . . . . central processing unit CRT . . . . . . . cathode ray tube cSt . . . . . . . . centistokes (unit of measurement for describing the viscosity of general liquids) ECAP . . . . . . electronic control analyzer programmer attn . . . . . . . . attention ECAS . . . . . . electronically controlled air suspension aux. . . . . . . . auxiliary av . . . . . . . . . avoirdupois (British weight system) AWD . . . . . . . all-wheel drive ECI . . . . . . . .
electronically controlled injection cu ft . . . . . . . cubic feet cu in . . . . . . cubic inches ECL . . . . . . . engine coolant level AWG . . . . . . American wire gauge AWS . . . . . . . American Welding Society CUM . . . . . . . Cummins CVSA . . . . . . Commercial Vehicle Safety Alliance ECM . . . . . . . electronic control module ECT . . . . . . . engine coolant temperature BAT . . . . . . . battery ECU . . . . . . . electronic control unit Business Class M2 Workshop Manual, Supplement 21, March 2012 050/1