Acronyms and Abbreviations

From JeepForum.com Community Jeep Wiki

2wd	Two Wheel Drive.
4FT	Four Wheel Drive, Full Time.
4LO	Four Wheel Drive Low.
4PT	Four Wheel Drive, Part Time.
4wd	Four Wheel Drive.
AAL	Add A Leaf.
ABS	Anti-lock Brake System.
AC or A/C	Air Conditioning.
ACC	Accessory.
ACM	Airbag Control Module.
AECM	Airbag Electonic Control Module.
AEV	American Expedition Vehicles. A vehicle modification/conversion shop, located in Montana.
AMC	American Motor Corporation. Owners of the Jeep brand from 1970-87.
ARB	ARB Corporation named for its founder, Anthony Ronald Brown. Aftermarket manufacturer.
ASDM	Airbag System Diagnostic Module.
AT (A/T)	All Terrain tire.
ATC	Automatic Temperature Control
ATF	Automatic Transmission Fluid.
AtoZ	A to Z Fabrication. Aftermarket Fabrication.
AVG ECO	Average Fuel Economy.
AW4	Automatic Transmission used on the XJ since 1987.
AWD	All Wheel Drive.
AX15	5 speed manual stick in a pre-99 6 cylinder TJ.
AX5	5 speed manual stick in a pre-99 4 cylinder TJ.
BB	Budget Boost (small, 2" lift).
BCM	Body Control Module.
BFG	BFGoodrich Tires.
BFH	Big F-ing Hammer.
BL	Body Lift. Spacers between the frame and body/tub of a vehicle.
BPE	Bar Pin Eliminators.
BS	Backspacing. Wheel hub location in relation to outside edge of rim.
BTT	Back To Top.
BTW	By The Way.
BUX	Built Up Export.
C-101	Jeepster/ Commando 1967-1973. Part Jeep CJ and part Jeep Wagoneer.
CAB	Controller, Antilock Brake.
CAL	Calibration.
CAT	Catayltic Converter.
CB	Citizen Band Radio.
CCD	Chrysler Collision Detection (vehicle communications bus).
CCV	Crank Case Ventilation.
CEL	Check Engine Light.
CG or COG	Center of Gravity.
CJ	Jeep models 1944-1986.
CJ-2A	Civilian version of the MB, split windshield.
CJ-3A	Updated version, single pane windshield
CJ-3B	High hood version of 3A to fit larger engine
CJ-5	Early years were 81" wheelbase, later years were ~84". Built until 1983.
CJ-5A	based on the M38A1 design
CJ-6	Stretch version of CJ-5, 101" wheelbase
CJ-6A	based on the M38A1 design
CJ-7	smilar to late CJ-5, but with ~94" wheelbase. Built until 1986.
CJ-8 Scrambler	Scrambler Pickup, stretch version of the CJ-7, 104" wheelbase.
CJ-10	Heavy Duty Truck, Military airport Jeep pickup - 2wheel drive
CMTC	Compass/Mini-Trip Computer (module)
COG	Center Of Gravity.
CPS	Crank Position Sensor.
CV	Constant Velocity Joint.
CVT2/CVT3	Continuously Variable Transmission
D30	Dana 30 axle.
D35	Dana 35 axle.
D35C	Dana 35 axle with C clips. The 'C' stands for custom. They are custom because they are shipped incomplete from the Dana factory to Chrysler. Final assembly was done by Chrysler.
D44	Dana 44 axle.
D44a	Dana 44 axle with an aluminum housing
D60	Dana 60 axle.
DAB	Driver Airbag
DC	DaimlerChrysler. Owners of the Jeep brand since 1998.
DD	Daily Driver.
DDM	Driver Door Module
DJ	DJ Postal 2wd Jeeps. 1952 - 1973 by American Motors Corporation
DLC	Data Link Connector (same as EDC)
DOHC	Dual (or double) OverHead Cams.
DOT	Department of Transportation
DRB	Digital Readout Box
DRL	Daytime Running Lights.
DPA	Dropped Pitman Arm
DS	Death Shake (same as DW)
DTE	Distance To Empty
DW	Death Wobble. Violent shaking of the vehicle. (same as DS)
ECO	Intantaneous Fuel Economy
ECU	Engine Control Unit (same as ECM)
ECM	Engine Control Module (same as ECU)
EDC	Engine Diagnostic Connector (same as DLC)
EGR	Exhaust Gas Recirculation
EFI	Electronic Fuel Injection
ESP	Electronic Stability Program
ET	Elapsed Time
FAQ	Frequently Asked Questions.
FC	Forward Control Trucks 1957 - 1966
FIPK	Fuel Injection Performance Kit. Sold by K&N.
FSJ	Full Size Jeep (SJ's and J-trucks).
FSM	Factory Service Manual.
FWD	Front Wheel Drive
GC	Grand Cherokee
GPS	Global Positioning System.
HCU	Hydraulic Control Unit
HD	Heavy Duty
HEX	Hexagon
HF	Harbor Freight. A discount tool store.
HID	High Intensity Discharge. A lighting system that produces an intense, white light.
HO	High Output
HP	High Pinion
HTH	Hope this helps, happy to help.
HU	Head Unit. The main part of your stereo system.
HVAC	Heater, Ventilation, Air Conditioning system.
I4	Inline four cylinder engine.
I6	Inline six cylinder engine.
IAC	Idler Air Control Valve
ID or I/D	Inside Diameter
IFS	Independant Front Suspension.
IOD	Ignition Off-Draw
IR	Ingersoll Rand. Air tool manufacturer
IRS	Independant Rear Suspension.
JTEC	Jeep Truck Engine Controller (PCM)
KJ	Jeep KJ Liberty models from 2002+ (Cherokee in Europe).
L	Liter
LA	Long Arm. Refers to length of control arms.
LCA	Lower Control Arms. (same as LSA)
LD	Left Door.
LED	Light-Emitting Diode.
LHS	Left Hand Drive.
LJ	Unofficial (?) letter code for the Jeep Wrangler Unlimited 2 door 2004+.
LOM	Lamp Outtage Monitor.
LR	Left Rear.
LSA	Lower Suspension Arm (same as LCA).
LSD	Limited Slip Differential.
LWB	Long Wheel Base.
MAP	Manifold Absolute Pressure sensor.
MET	Metric.
MIC	Mechanical Instrument Cluster.
MJ	Jeep MJ Comanche, Compact Pickup models from 1986-92.
MML	Motor Mount Lift.
MPI	Multi-Port Fuel Injection.
MPG	Miles Per Gallon.
MPH	Miles Per Hour.
MSTM	Memory Seat Module.
MT (M/T)	Mud Terrain tire.
MTR	Motor.
MUX	multiplexed.
NP	New Process (same as NV).
NP231	Command-Trac Transfer Case (2HI - 4HI - N - 4LO).
NP242	Selec_Trac Transfer Case (2HI - 4PT - 4FT - N - 4LO).
NP249	Quadra-Trac Transfer Case (4 All Time - N - 4LO).
NV	New Venture (same as NP).
NV247	Quadra-Trac II Transfer Case.
NV3550	5 speed manual stick in a post-99 6 cylinder TJ.
NWS	Not Work Safe (this thread might get you fired at work)
O2	Oxygen (usually in reference to an oxygen sensor).
OBA	On Board Air. A system of a tank and/or air compressor located on a vehicle.
OBD, OBDI	First generation of On Board Diagnostics.
OBDII	Second generation of On Board Diagnostics (1996+).
OBW	On-Board Welder.
OD or O/D	Outside Diameter.
ODO	Odometer.
OHV	Off Highway Vehicle
OEM	Original Equiptment Manufacturer.
OME	Old Man Emu. Aftermarket Manufacturer.
ORV	Off Road Vehicle.
PAB	Passenger Airbag.
PB	PB Blaster. A penetrating liquid.
PCM	Powertrain Control Module.
PDC	Power Distribution Center.
PDM	Passenger Door Module.
POS	Piece Of Sh--.
PS or P/S	Power Steering.
PSI	Pounds per Square Inch (of pressure).
PSF	Pounds per Square Foot.
PRNDL	Park, Reverse, Neutral, Drive, Low.
PRNODL	Park, Reverse, Neutral, Overdrive, Drive, Low.
PTC	Positive Temperature Coefficient.
PTO	Power Take Off.
QD	Quick Disconnect. Installed on the anti-sway bar.
RA	Road Armor.
RC	Reverse Cut.
RD	Right Door.
RE	Rubicon Express. Aftermarket manufacturer.
RFI	Radio Frequesncy Interference.
RHD	Right Hand Drive.
RK	Rock Krawler. An aftermarket suspension company.
RKE	Remote Keyless Entry.
RPM	Revolutions Per Minute.
RR	Right Rear.
RTI	Ramp Travel Index.
RTV	Room Temperature Vulcanizing. A product that is used to form gaskets.
SAE	Standard American Equivalent. You know, tools that aren't metric.
SAS	Solid Axle Swap. Swapping in a solid front axle to replace IFS.
SE	Jeep's basic trim package.
SEMA	Specialy Equipment Market Association.
SF	Superflex. A lift option for Rubicon Express lift kits.
SFA	Solid Front Axle.
SJ	Jeep Grand Wagoneers, Trucks from 1963-92.
SOA	Spring Over Axle.
SOHC	Single OverHead Cam.
SRS	Suplimentary Restraint System. (AKA airbags)
SUA	Spring Under Axle.
SWB	Short Wheel Base.
SWR	Standing Wave Ratio.
SYE	Slip Yoke Eliminator. Installed on transfer case to decrease driveline angles.
TB	Throttle Body.
TBI	Throttle Body Injection.
TBS	Throttle Body Spacer.
TBT	Toys by Troy. Aftermarket Manufacturer.
TC	Transfer Case.
TCM	Transmisison Control Module.
TJ	Jeep TJ Wrangler models from 1997-05.
TJL, TJ-L	Unofficial letter codes for Jeep Wrangler Unlimited 2004+.
TPS	Throttle Position Sensor.
TRE	Tie Rod End.
TSB	Technical Service Bulliten.
UCA	Upper Control Arms. (same as USA).
UJ	Universal Joint.
USA	Upper Suspension Arm (same as UCA).
US/M	U.S. to Metric [button].
VC	Viscous Coupler.
VF	Vaccum Flourescent Display.
VIC	Vehicle Information Center.
VIN	Vehicle Identification Number.
VSS	Vehicle Speed Sensor.
VTSS	Vehicle Theft Security System.
WJ	Jeep WJ Grand Cherokee models from 1999-04.
WD-40	Water Displacement, Formula 40. A common oil used to do pretty much anything.
WK	Jeep WK Grand Cherokee models from 2005+.
WMS	Wheel Mounting Surface.
WOT	Wide Open Throttle.
WTF	What The F-.
XJ	Jeep XJ Cherokee and Wagoneers from 1984-2001.
X	Jeep Wrangler Trim/Option Package.
XM	A satellite radio service.
YJ	Jeep YJ Wrangler models from 1987-95.
ZJ	Jeep ZJ Grand Cherokee models from 1993-98.

External links

• All Acronyms - large collection of various acronyms