General Information: Acronyms: Notes
ACRONYMS
| A/C | air conditioning |
| ABS | anti-lock brake system |
| ASD Relay | auto shutdown relay |
| APPS | accelerator pedal position sensor |
| Baro | barometric pressure |
| BCM | body control module |
| BTS | battery temperature sensor |
| CAA | clean air act |
| CAB | controller antilock brakes |
| CARB | California air resources board |
| CCD BUS | Chrysler collision detection bus |
| CKP Sensor | crankshaft position sensor |
| CKT | circuit |
| CMP Sensor | camshaft position sensor |
| CM840 | Cummins engine controller |
| CO | carbon monoxide |
| CVI | clutch volume index |
| DCP Solenoid | duty-cycle purge solenoid |
| DLC | data link connector |
| DRBIII® | diagnostic readout box - 3rd generation |
| DTC | diagnostic trouble code |
| DVOM | digital volt ohm meter |
| EATX | electronic automatic transmission controller |
| EC | European community |
| ECT Sensor | engine coolant temperature sensor |
| EE-PROM | electrically erasable programmable read only memory |
| EGR Valve | exhaust gas recirculation valve |
| EMCC | electronic modulated converter clutch |
| EMI | electro-magnetic interference |
| EOBD | European OBD (based upon Euro Stage III) |
| EPA | environmental protection agency |
| EPP | engine position pulse |
| ETC | electronic throttle control |
| EU | European Union |
| EVAP | evaporative emission system |
| EVR | electronic voltage regulator |
| EWMA | exponentially weighted moving average |
| FEMCC | fully electronically modulated converter clutch |
| FTP | federal test procedure |
| FSS | fan speed signal |
| HC | hydrocarbons |
| HO2S | heated oxygen sensor |
| Generator | previously called "alternator" |
| IAC Motor | idle air control motor |
| IAT Sensor | intake air temperature sensor |
| IOD | ignition off draw |
| IRT | intelligent recovery timer |
| ISS | input speed sensor |
| I/M | inspection and maintenance testing |
| JTEC | jeep/truck engine controller |
| LDP | leak detection pump |
| LED | light emitting diode |
| LPS | line pressure switch |
| LR | low/reverse clutch |
| LSIACV | linear solenoid idle air control valve |
| MAF | mass air flow |
| MAP Sensor | manifold absolute pressure sensor |
| MIDS 2 ® | mopar diagnostic system 2nd generation |
| MIL | malfunction indicator lamp |
| MS | multi select |
| MTV | manifold tuning valve |
| NGC | next generation controller |
| NTC | negative temperature coefficient |
| NVLD | natural vacuum leak detection |
| O 2 Sensor | oxygen sensor |
| O2S | oxygen sensor |
| OBDI | on board diagnostics 1st generation |
| OBDII | on board diagnostics 2nd generation |
| OD | overdrive clutch |
| ORVR | on-board refueling vapor recovery |
| OSS | output speed sensor |
| PCI | Bus programmable communications interface bus (J1850) |
| PCM | powertrain control module |
| PCS | pressure control solenoid |
| PCV | positive crankcase ventilation |
| PDC | power distribution center |
| PEMCC | partial electronically modulated converter clutch |
| PEP | peripheral expansion port |
| P/N | park/neutral |
| PPS | proportional purge solenoid |
| PS | power steering |
| PSP | power steering pressure (switch) |
| PTC | positive temperature coefficient |
| PWM | pulse-width modulation |
| RAM | random access memory |
| REV | reverse clutch |
| RFI | radio frequency interference |
| RKE | remote keyless entry |
| RPM | revolutions per minute |
| SAE | society of automotive engineers |
| SBEC | single board engine controller |
| SCW | similar conditions window |
| SKIM | sentry key immobilizer module |
| SRV | short runner valve |
| SSV | solenoid switch valve |
| SW | switch |
| TCC | torque converter clutch |
| TCCM | transfer case control module |
| TDC | top dead center |
| TP | throttle position sensor |
| TRD | torque reduction |
| TRS | transmission range sensor |
| TTS | transmission temperature sensor |
| UD | underdrive clutch |
| VSS | vehicle speed signal |
| WOT | wide open throttle |
| 2/4 | 2nd and 4th gear clutch or pressure switch |
| 2C | 2nd clutch |
| 4C | 4th clutch |