*Abreviations (acronyms) for newbies! - NP

[Gary - K7GLD]

One of the best - and FIRST - to be learned when you have a question about your truck, is RTFM - which roughly translates "Read The F****** Manual"! The vehicle makers DO manage to get a lot of info in those manuals - and YOUR question MIGHT just have the answer as close as your glovebox!

BUT, for the REST, here's a copy from another source that pretty well covers most abreviations you will find on boards like this one...

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From DodgeRam.org:


2WD Two Wheel Drive

4WD Four Wheel Drive

ABS Anti-lock Brake System: Modulates braking pressure to control wheel lockup

ACM Airbag Controller Module: monitors sensors and deploys airbag(s) in the event of an accident

AFC Air Fuel Control: used on 94 - 98 diesels to control fuel rate at low boost

APPS Accelerator Pedal Position Sensor: used on ISB diesel for electronic throttle control

ASD Auto Shut Down: relay control system used to shut down engine

BDC Bottom dead center - the lowest position of a piston in the cylinder occurs when the crank pin is at bottom dead center

BE model designation for the Quad Cab Ram pickup

BFSC Brake Specific Fuel Consumption - pounds of diesel fuel consumed to produce 1 HP for 1 hour

BHAF Big Honkin' Air Filter - oversized filter used by the diesel gang

BR model designation for standard cab Ram pickup (and maybe the CC Pickup) more below

CAB Controller Anti-lock Brake:

CARB California Air Rescouces Board: environmental regulatory agency in CA

CCD Chrysler Collision Detection: data bus system used by the airbag and the anti-lock brake systems

CHMSL Center High Mounted Stop Light: 3rd brake light at top of truck cab

CKP Crank Position Sensor: detects position and speed of engine crankshaft

CMP Camshaft position sensor: detects position of camshaft

CP3 Common Rail Injection Pump, 03 and up

CPL Control Part List: listing of engine parts and timing specifications for a Cummins engine (Ram CPL numbers)

CTD Cummins turbo diesel - used by many on mail lists and message boards

CTM Central Timer Module: controls RKE, chime, courtesy lamps, Speed sensitive Intermittent wipers, enhanced accident response, VTSS

DAB Driver Air Bag module: airbag and firing system mounted in the steering wheel center

DC DC or D/C = DaimlerChrysler - used on mail lists and message boards

DD1 DD1, DD2, DD3 = Diesel Dynamics Stage 1 (2 or 3) injectors

DEE Order code for the NV5600 6 speed manual transmission

DLC Data Link Connector: used to interface diagnostic equipment with vehicle electronics

DRB scan tool used to obtain diagnostic trouble codes (DTC) from controller modules

DRB III new generation scan tool used to obtain diagnostic trouble codes (DTC)

DRW Dual Rear Wheel

DTC Diagnostic Trouble Code: Fault code set by control module when sensor data is not as expected

DTT Diesel Transmission Technologies - aftermarket auto trans upgrade specialist

EBC 2 RWAL brake system

EBC 325 four wheel anti-lock brake system

ECM Engine Control Module: microprocessor based module that controls various engine functions

ECT Engine Coolant Temperature Sensor

EEPROM Electrically Erasable Programmable Read Only Memory: controller reprogrammable memory

EGR Exhaust Gas Recirculation: used to reduce combustion temperature and pressure to control Oxides of Nitrogen
emissions

EGT Exhaust Gas Temperature: Important measurement for hard working diesel engines

EMCC Electronically Modulated Converter Clutch: used for torque converter lockup control in the automatic transmission

ETC Order code for diesel engine

ETH 2001 Order code for the High Output diesel engine

ETH/DEE Slang for the 2001 HO diesel with the NV5600 six speed

EVA Electronic Vibration Analyzer - used to diagnose chassis, engine, and drivetrain vibrations

EVR Electronic Voltage Regulator: circuitry in the PCM which controls battery charging and alternator functions

FASS Aftermarket Fuel Pump

FP Fuel Pressure

FPCM Fuel injection Pump Control Module: controls injection pump on 98+ diesel engines

GAWR Gross Axle Weight Rating: maximum safe load capacity of an axle measured at the ground.

GCW Gross Combined Weight: total weight of equipped truck, payload, trailer, water, and equipment.

GCWR Gross Combined Weight Rating: maximum allowable GCW

GVW Gross Vehicle Weight: total curb weight of the truck and payload.

GVWR Gross Vehicle Weight Rating: maximum allowable GVW

HCU Hydraulic Control Unit: modulates the brake pressure for ABS

HX35 Holset turbocharger used for most 94+ diesel Rams.

HX40 Holset turbocharger intended for C engines, but used by
some performance enthusiasts on the Ram's B engine

HY35 Holset turbocharger used on 2000+ diesel Rams with the automatic transmission

IAT Intake Air Temperature Sensor

IAC Idle Air Control valve: used for emissions control on gasoline engines

IP Instrument Panel

ISB Interact System B: Cummins designation for the 24 Valve "B" series diesel introduced to the 1998 Ram

JTEC Jeep, Truck Engine Control: Combined engine and transmission control module

K&N Aftermarket filter and intake system manufacturer

KDP Killer dowel pin inside the timing gear case on 94-98 12 valve diesels. If this pin falls out of its blind hole, the repair is expensive. The two preventative repairs are the Washer Tab and Drill Jig/Bolt

LDP Leak Detection Pump: used in the 4 wheel ABS valve assembly

LED Light Emitting Diode: semiconductor lamp used for displays and warning lamps

LP Lift Pump

LSD limited slip differential

LWB long wheelbase (or LB, for long box or long bed)

MAP Maximum Absolute Pressure sensor: used for emission control

MDS(2) Mopar Diagnostic System: diagnostic computer system for service departments

MIC Mechanical Instrument Cluster: Instrument cluster controller and display system

MIL Malfunction Indicator Light: used by engine control system to indicate a problem to the driver

MTV Manifold Tuning Valve: used to vary the manifold runners for engine performance and emission control

O2S Oxygen Sensor: measures oxygen content of exhaust stream. Used to modify air to fuel ratio for emission control

OBD On Board Diagnostics: Ram engine and powertrain self diagnostic system

OBD II On Board Diagnostics II: enhanced diagnostic system to meet 1997 EPA requirements

P7100 Fuel injection pump used with 1994 - 1998 Ram 12 valve diesel engines

PAB Passenger Air Bag module: airbag and firing mechanism on the passenger side

PADS Passenger Airbag Disarm Switch: Override switch to disable

PAB when children are riding in front seat

PCI Programmable Communications Interface

PCM Powertrain Control Module: microprocessor based module that controls engine and drivetrain functions

PCV Positive Crankcase Ventilation: vacuum system used to control crankcase (blowby) emissions

PDC Power Distribution Center: Fuse and relay power distribution center located under the hood.

PEP Peripheral Expansion Port
psi Pounds per Square Inch: pressure measurement

RAM Random Access Memory: read and write memory used by controllers for data storage

RKE Remote Keyless Entry: remote operated door lock system

RPM Revolutions Per Minute: the speed of a turning shaft or rotor

ROM Read Only Memory: controller "hard" memory that is permanently written - EEPROM may be reprogrammed with appropriate diagnostic tools

RWAL Rear Wheel Anti Lock brakes:

SBEC Single Board Engine Controller

SCI Serial Communications Interface: Used by the PCM for diagnostics and for communication with other controller modules

SCTM Seatbelt Timer Control Module: inertia latching seatbelt controller built into Quad Cab Models

SKIM Sentry Key Imobilizer Module: disables engine start until Secret Key is entered using DRB scan tool !!! Required when a new PCM is installed in a vehicle

SRW Single Rear Wheel

SWB (or SB, for short box or short bed)

TCC Torque Converter Clutch

TCM Transmission Control Module: May not be used on Ram trucks

TDC Top Dead Center: the highest position of a piston in the cylinder occurs when the crank pin is at top dead center

TDR Turbo Diesel Register - club for Ram diesel owners - with a website, magazine, and rallys

TPS Throttle Position Sensor

TRS Transmission Range Sensor

TSB Technical Service Bulletin: repair and technical information bulletins to assist service departments

TST Diesel engine power enhancement company run by Mark Chapple

VB Valve body - auto trans

VE Bosch Distributor type injection pump used on 89-93 Ram diesel engines

VP44 Bosch electronic fuel injection pump used on 1998+ Ram diesel engines

VIN Vehicle Identification Number: unique serial number assigned to each vehicle

VSS Vehicle Speed Sensor/Signal

VTSS Vehicle Theft Security System: anti theft system with engine disable, alarm, and door lock features

WIF Water In Fuel sensor: detection system for water in fuel filter on 1994+ diesel engines

WOT Wide Open Throttle: maximum throttle position

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White '02 Quad cab, NV5600, GAUGES! Comp, Walbro, DTT SS intake, Rip's 4 in. exhaust, Don M's 1.6's, DSS, Frantz oil bypass & fuel filters, Amsoil air filter, MOBILE Ham Radio-IC-706, 600 watt amp, '88 Kit 24 ft. 5er, 418 HP/978 Tq., 24 ft KIT 5er.

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Last edited by BBRam : 09-21-2007 at 04:17 AM. Reason: Addition's

[Tom05]

Nice list. Thanks Gary.

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www.midwestdieselconnection.com