Acronyms And Definitions

ABS: Anti-Lock Brake System

APP: Accelerator Pedal Position

ARB: Air Resource Board

ATDC: After Top Dead Center

BARO: Barometric Pressure

BECM: Battery Energy Control Module

BPO: Battery Power Off

BPP: Brake Pedal Position

BTDC: Before Top Dead Center

CAFE: Corporate Average Fuel Economy

CAN: Controller Area Network

CCM: Comprehensive Component Monitor

CHT: Cylinder Head Temperature

CKP: Crankshaft Position

CL: Closed Loop

CMP: Camshaft Position

CO: Carbon Monoxide

CO 2: Carbon Dioxide

COP: Coil On Plug

CT: Closed Throttle

CTO: Clean Tach Output

DC: 1. Direct Current 2. Duty Cycle

DFSO: Deceleration Fuel Shut-Off

DLC: Data Link Connector

DMM: Digital Multimeter

DRI: Deposit Resistant Injector

DTC: Diagnostic Trouble Code

ECT: Engine Coolant Temperature

EEC: Electronic Engine Control

EEGR: Electric Exhaust Gas Recirculation

EEPROM: Electrically Erasable Programmable Read-Only Memory

EGR: Exhaust Gas Recirculation

EPA: Environmental Protection Agency

ETB: Electronic Throttle Body

ETC: Electronic Throttle Control

EVAP: Evaporative Emission

FAOS: Fore-Aft Oxygen Sensor

FC: Fan Control

FEPS: Flash EEPROM Programming Signal

FLI: Fuel Level Input

FMEM: Failure Mode Effects Management

FP: Fuel Pump

FTP: Fuel Tank Pressure

GCU: Generator Control Unit

GPM: 1. Grams per Mile 2. Gallons per Minute

GVW: Gross Vehicle Weight

HC: Hydrocarbon

HO2S: Heated Oxygen Sensor

IAT: Intake Air Temperature

IDS: Integrated Diagnostic System

IPC: 1. Instrument Panel Cluster 2. Independent Plausibility Checker

ISO: International Standards Organization

KAM: Keep Alive Memory

KOEO: Key On Engine Off

KOER: Key On Engine Running

Km/h: Kilometers per Hour kPa: Kilopascal

KS: Knock Sensor

LEV: Low Emissions Vehicle

LOS: Limited Operating Strategy

MAF: Mass Air Flow

MAP: Manifold Absolute Pressure

MECS: Motor Electronics Cooling System

MFF: Misfire Freeze Frame

MIL: Malfunction Indicator Lamp

MRFS: Mechanical Returnless Fuel System

N: Nitrogen

NO X: Nitrogen Oxide

NVRAM: Non-Volatile Random Access Memory

OASIS: On-line Automotive Service Information System

OBD: On Board Diagnostics

OC: Oxidation Catalytic Converter

OHC: Overhead Camshaft

OSC: Output State Control

OSR: On Board System Readiness

PCM: Powertrain Control Module

PCV: Positive Crankcase Ventilation

PID: Parameter Identification

PIP: Profile Ignition Pickup

PPM: Parts Per Million

PSCM: Power Steering Control Module

PTS: Professional Technician Society

PWM: Pulse Width Modulated

PZEV: Partial Zero Emission Vehicle

RAM: Random Access Memory

RCM: Restraints Control Module

ROM: Read-Only Memory

RPM: Revolutions per Minute

RWD: Rear-Wheel Drive

SAE: Society of Automotive Engineers

SOBDMC: Secondary On Board Diagnostic Module

SULEV-II: Super Ultra Low Emission Vehicles-II

TAC: Throttle Actuator Control

TACM: Throttle Actuator Control Motor

TB: Throttle Body

TDC: Top Dead Center

TP: Throttle Position

TR: Transmission Range

TRID: Transmission Identification

TSB: Technical Service Bulletin

ULEV: Ultra Low Emissions Vehicle

VCM: Vehicle Communication Module

VCT: Variable Camshaft Timing

VECI: Vehicle Emission Control Information

VID: Vehicle Identification

VIN: Vehicle Identification Number

VSC: Vehicle System Controller

VSS: Vehicle Speed Sensor

WOT: Wide Open Throttle