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A - Amperes
ABS - Anti-Lock Brakes
ABRS - Air Bag Restraint System
AC - Alternating Current
A/C - Air Conditioning
ACCUM - Accumulator
ACCY - Accessory
ACT - Air Charge
ADJ - Adjust or Adjustable
ADV - Advance
A/F - Air/Fuel Ratio
A.I.R. - Air Injection Reactor
AIS - Air Injection System
Alt. - Alternator
ALDL - Assembly Line Data Link
AMP. - Ampere
ASD - Auto Shutdown
ASDM - Air Bag System Diagnostic Module
A/T - Automatic Transmission/Transaxle
ATC - Automatic Temperature Control
ATDC - After Top Dead Center
ATF - Automatic Transmission Fluid
ATS - Air Temp Sensor
AWD - All Wheel Drive
AUX. - Auxiliary
B+ = Battery Positive Voltage
BARO - Barometric
Batt. - Battery
BBL. - Barrel
BCM - Body Control Module
BMAP - Barometric and Manifold Absolute Pressure Sensor
BOO - Brake On-Off Switch
B/P - Backpressure
BPS - Barometric Pressure Sensor
BPT - Backpressure Transducer
BTDC -Before Top Dead Center
° C - Celsius (Degrees)
CAN - Controller Area Network
CANP - Canister Purge
CAS - Crank Angle Sensor
CAT - Catalytic Converter
CC - cubic centimeter
CCC - Computer Command Control
CCD - Computer Controlled Dwell
CCW - Counterclockwise
CID - Cubic Inch Displacement
CM - Centimeter
CMP - Camshaft Position Sensor
CO - Carbon Monoxide
CO 2 - Carbon Dioxide
CONV - Convertible
CP - Canister Purge
CKP - Crankshaft Position Sensor
COP - Coil Over Plug Ignition
CPI - Central Port Injection
CPU - Central Processing Unit
CTS - Coolant Temp Sensor
CU. IN. - Cubic Inch
C.V. - Constant Velocity
CW - Clockwise
CYL - Cylinder
D - Drive
DC - Direct Current
DEF. - Defrost
DEFOG. - Defogger
DEFI - Digital Electronic Fuel Injection
DFI - Digital Fuel Injection
DFS - Deceleration Fuel Shutoff
DIAG. - Diagnostic
DTC - Diagnostic Trouble Code
DIC - Driver Information Center
DIS - Distributorless Ignition System
DIST - Distribution
DLC - Data Link Connector
DOHC - Double Overhead Cam
DTC - Diagnostic Trouble Code
DVOM - Digital Volt-Ohmmeter
EBCM - Electronic Brake Control Module
EBM - Electronic Body Module
ECA - Electronic Control Assembly
ECM - Engine Control Module
ECT - Engine Coolant Temperature
ECU - Electronic Control Unit
EDIS - Electronic Distributorless Ignition System
EEC- Electronic Engine Control
EECS- Evaporative Emission Control System
EFE- Early Fuel Evaporation
EFI - Electronic Fuel Injection
EGO - Exhaust Gas Oxygen Sensor
EGR - Exhaust Gas Recirculation
EGRPS - EGR Valve Position Sensor
EGRT - EGR Temperature
EI - Electronic Ignition
EOS - Exhaust Oxygen Sensor
EPROM - Erasable Programmable Read Only Memory
ESC - Electronic Spark Control
EST - Electronic Spark Timing
EVAP - Evaporative Emission System
EVP - EGR Valve Position
°F - Fahrenheit
F/B - Fuse Block
FI - Fuel Injection
FWD - Front-Wheel Drive
G - Grams
GALS - Gallon
GEN - Generator
GND - Ground
GPS - Global Positioning System
GVW - Gross Vehicle Weight
H20 - Water
HC - Hydrocarbons
H/D - Heavy Duty
HEGO - Heated Exhaust Gas Oxygen Sensor
HEI - High Energy Ignition
HG - Mercury
HGT. - Height
HLDT - Headlight
HO - High Output
HO2S - Heated Oxygen Sensor
HP - Horsepower
HP - High Performance
HSC - High Swirl Combustion
HSO - High Specific Output
HT - High Tension
HTR – Heater
Hz - Hertz(Cycles Per Second)
IAC - Idle Air Control
IAT - Intake Air Temperature
IAT - Intake Air Temperature
ICM - Ignition Control Module
IGN - Ignition
INJ - Injector
IP - Instrument Panel
ISC - Idle Speed Control
J/B - Junction Block
KOEC - Key On, Engine Cranking
KOEO - Key On, Engine Off
KOER - Key On, Engine Running
KS - Knock Sensor
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L - Liter
LCD - Liquid Crystal Display
L/D - Light Duty
LED - Light Emitting Diode
LHD - Left-Hand Drive
LTFT - Long Term Fuel Trim
LWB - Long Wheel-Base
mA - Milliamps
MAF - Mass Air Flow
MAP - Manifold Absolute Pressure
MAT - Manifold Air Temperature
MCS - Mixture Control Solenoid
MCT - Manifold Charge Temperature
MFI - Multiport Fuel Injection
MIL - Malfunction Indicator Light
MPG - Miles Per Gallon
MPH - Miles Per Hour
MPI - Multi-Point (Fuel) Injection
MPV- Multi-Purpose Vehicle
ms - Millisecond
mV - Millivolts
NOX = Oxides of Nitrogen
O2 - Oxygen
O2S - Oxygen Sensor
OBD - On-board Diagnostics
OBD II - On-board
Diagnostics Two
OD - Overdrive
O.D. - Outside Diameter
OE - Original Equipment
OEM - Original Equipment Manufacturer
OHC - Over Head Camshaft
OHV - Over Head Valve
O/S - Oversize
P - Park
P/B - Power Bakes
P/N - Part Number
PCM - Powertrain Control Module
PCV - Positive Crankcase Ventilation
PFI - Port Fuel Injection
PGM-FI - Programmed Fuel Injection
P/N - Park/Neutral
PPM - Parts Per Million
PRNDL - Park Reverse Neutral Drive Low
PROM - Program Read Only Memory (chip)
P/S - Power Steering
PSI - Pounds Per Square Inch
PTC - Positive temperature coefficient
PWR. - Power
R/A - Resume or Accelerate
RABS - Rear Anti-Lock Brake System
RAM - Random Access Memory
RECAL - Recalibrate, Recalibration
RECIRC - Recirculation
RF - Right Front
RFWS - Right Front Wheel Speed
RH - Right Hand
RIM - Radio Interface Module
RIM - Rear Integration Module
RKE - Remote Keyless Entry
RLY. - Relay
ROM - Read Only Memory
R&R - Remove and Replace
RR - Right Rear
RSS - Road Sensing Suspension
R/T - Road/Track
RT - Right
RWAL - Rear Wheel Anti-lock
RWD - Rear Wheel Drive
SBEC - Single Board Engine Controller
SC - Supercharged
SEFI - Sequential Electronic Fuel Injection
SES - Service Engine Soon (light)
SFI - Sequential (Port) Fuel Injection
SOHC - Single Overhead Cam
SPFI - Sequential Port Fuel Injection
SOL - Solenoid
SRI - Service Reminder Indicator
SRS - Supplemental Restraint System
SS - Speed Sensor
SSI - Solid State Ignition
STFT - Short Term Fuel Trim
SW. - Switch
SWB - Short Wheel-Base
SYS. - System
TACH - Tachometer
TB - Throttle Body
TBI - Throttle Body Injection
TC - Turbocharged
TCC - Torque Convertor Clutch
TCM - Transmission or Transaxle Control Module
TDC - Top Dead Center
TDI - Turbo Direct Injection
Temp. - Temperature
TFI - Thick Film Ignition
TPI - Tuned Port Injection
TPS - Throttle Position Sensor/Switch
VAC. - Vacuum
VIN - Vehicle Identification Number
VOLT. - Voltage
VOM - Volt-Ohmmeter (Analog)
VRV - Vacuum Regulator Valve
VSS - Vehicle Speed Sensor
W/ - With
W/O - Without
WOT - Wide Open Throttle
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