Here I am

Abbreviations, Acronyms and TDR lingo

Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff

is 2 gallons> antifreeze enough?

Just bought 2007 2500

As a first time diesel owner, I have found my TDR subscription to be the best place for my money so far. However, as a newby, it can be hard to read some of the threads posted by the old timers as they are full of abbreviations and acronyms that aren't heard every day (other than here).

So feel free to post more commonly seen abbreviations and acronyms.





TDR: Turbo Diesel Register. You're lookin at it!! :D

CTD: Cummins Turbo Diesel; what you drive; commonly refered to by neighbors as "That big, loud, thing of your's!!!"

BOMB: Better Off Modified Baby; anything that makes your CTD better (it is possible)

BHAF: Big Honkin' Air Filter check this thread BHAF picture

FP: Fuel Pressure

EGT: Exhaust Gas Temperature



For the non-computer types:

BTW: By The Way

LOL: Laughing Out Loud :D

ROFLMAO: Rolling On Floor Laughing My Anal cavity Off :-laf :-laf
 
ETH= HO Cummins engine order code

ETC= regular cummins as in 5spd or auto

DEE= NV5600 6Spd transmission



DTT= Diesel Transmission Technology, a company that makes transmission products



VB= valve body in an auto transmission

TC= torque converter



DD= diesel dynamics

or

DD3= a DD injector stage three



I am just thinking of sigs that would throw you off if you didn't know the abbreviations.

Ted
 
Piers = God

Here are some 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



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)



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



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



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



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



and here are some that illflem posted a while back... .



AAMOF as a matter of fact



BBFN bye bye for now



BFN bye for now



BTW by the way



BYKT but you knew that



CMIIW correct me if I'm wrong



EOL end of lecture



FAQ frequently asked question(s)



FITB fill in the blank



FWIW for what it's worth



FYI for your information



HTH hope this helps



IAC in any case



IAE in any event



IMCO in my considered opinion



IMHO in my humble opinion



IMNSHO in my not so humble opinion



IMO in my opinion



IOW in other words



LOL lots of luck or laughing out loud



MGB may God bless



MHOTY my hat's off to you



NRN no reply necessary



OIC oh, I see



OTOH on the other hand



RCH red c*** hair(unit of measure)



ROF rolling on the floor



ROFL rolling on the floor laughing



ROTFL rolling on the floor laughing



RSN real soon now



SITD still in the dark



TIA thanks in advance



TIC tongue in cheek



TTYL talk to you later



TYVM thank you very much



WYSIWYG what you see is what you get



YKYBNTLWYKT you know you've been on the net too long when you know all these





Have fun,

Andrew
 
Last edited:
Andrew, Looks like you were busy typing up that list, good job. The moderators should bump your post count up at least another 20 for that one.

Dean
 
Unless I missed 'em:



TTT - To The Top (had me buffaloed)



YMMV - Your Mileage May Vary



WTF - Where's That Fred?... Went To Florida... (or make your own)
 
TxDieselKid, is this CTC a plot? (Commie Torque Converter)



You left out ATS from your list of acronyms!

(ATS is Automatic Transmission Specialists, from Denver, who make the TripleLok TC)
 
HVAC

I always thought HVAC meant Heating, Ventilation & Air Conditioning. But after reading thousands of posts, I think it means Highly Venerated Awesome Cummins, (or something to that effect) otherwise known as the person who builds, maintains and drives a high powered personal red rocket. Correct me if I’m wrong. Hey, does HCAC have a pilot’s license to fly that thing?



BTW, I’m glad to finally know what LOL means. Always thought it meant Lots Of Laughs, but Laughing Out Loud makes way more sense.
 
Originally posted by WeirCummin

Andrew, Looks like you were busy typing up that list, good job. The moderators should bump your post count up at least another 20 for that one.

Dean



Just now saw this, don't be jealous Dean. ;) Havn't you noticed how quiet I am nowadays? :p



Andrew
 
Back
Top