Operation CHARM: Car repair manuals for everyone.

Glossary of Acronyms

ABS Antilock Brake System

A/C Air Conditioning

ACM Airbag Control Module

AECM Airbag Electronic Control Module (ACM)

ASD Relay Auto Shutdown Relay

ASDM Airbag System Diagnostic Module (ACM)

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

CMTC Compass/Mini-Trip Computer

CMP Sensor Camshaft Position Sensor

CO Carbon Monoxide

CTM Central Timer Module

DAB Driver Airbag

DCP Solenoid Duty Cycle Purge Solenoid

DLC Data Link Connector

DRB III Diagnostic Readout Box - 3rd Generation

DTC Diagnostic Trouble Code

DVOM Digital Volt-Ohm Meter

EATX II Electronic Transmission Controller - 2nd Generation

EBL Electric Backlite (Rear Window Defogger)

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

EU European Union

EVAP Evaporative Emission System

EVR Electronic Voltage Regulator

EWMA Exponentially Weighted Moving Average

FTP Federal Test Procedure

Generator Previously Called "Alternator"

HC Hydrocarbons

HO2S Heated Oxygen Sensor

IAC Motor Idle Air Control Motor

IAT Sensor Intake Air Temperature Sensor

I/M Inspection And Maintenance Testing

I/R Infrared Sensor

JTEC Jeep/Truck Engine Controller

LDP Leak Detection Pump

LSIACV Linear Solenoid Idle Air Control Valve

MAF Mass Air Flow

MAP Sensor Manifold Absolute Pressure Sensor

MDS2 Mopar Diagnostic System - 2nd Generation

MIL Malfunction Indicator Lamp

MTV Manifold Tuning Valve

MUX Multiplexed

NGC Next Generation Controller

NTC Negative Temperature Coefficient

NVLD Natural Vacuum Leak Detection

O2 Sensor Oxygen Sensor

O2S Oxygen Sensor

OBD I On Board Diagnostics - 1st Generation

OBD II On-Board Diagnostics - 2nd Generation

ODO Odometer

ORC Occupant Restraint Controller (ACM)

ORVR On-board Refueling Vapor Recovery

PAB Passenger Airbag

PCI Bus Programmable Communications Interface Bus (J1850)

PCM Powertrain Control Module

[1][2]PCV Positive Crankcase Ventilation

PDC Power Distribution Center

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

RFI Radio Frequency Interference

RKE Remote Keyless Entry

RPM Revolutions Per Minute

SAE Society Of Automotive Engineers

SBEC Single Board Engine Controller

SBT Seat Belt Tensioner

SCW Similar Conditions Window

SIACM Side Impact Airbag Control Module

SKIM Sentry Key Immobilizer Module

SQUIB also called Initiator (located in rear of Airbag Module)

SKIS Sentry Key Immobilizer System

SRV Short Runner Valve

TCC Torque Converter Clutch

TCCM Transfer Case Control Module

TCM Transmission Control Module

TDC Top Dead Center

TPS Throttle Position Sensor

TRS Transmission Range Sensor

VFD Vacuum Fluorescent Display

VTSS Vehicle Theft Security System

VSS Vehicle Speed Sensor

WOT Wide Open Throttle