2V - Two
(Venturi) Valve (two barrel carburetor)
2WS - Two
Wheel Steer
3GR - Third
Gear
4GR - Fourth
Gear
4EAT - Four
speed Electronic Automatic Transmission
4R70W - Four
speed, Rear wheel drive, (up to) 700 lb/ft torque rated, Wide ratio
4R100 - Four
speed, Rear wheel drive, (up to) 1000 lb/ft torque rated
4V - Four
(Venturi) Valve (four barrel carburetor)
4WAL - Four
Wheel Antilock
4WAS - Four
Wheel Air Suspension
4WD - Four
Wheel Drive
4WS - Four
Wheel Steer
5R55W - Five
speed, Rear wheel drive, (up to) 550 lb/ft torque rated, Wide ratio
A
A - Amperes
A-6 - Axial 6
cylinder A/C compressor
AALA -
American Automobile Labelling Act
AAT - Ambient
Air Temperature
ABARS -
Automobile Backward Automatic Ranging System
ABC - Active
Body Control
ABS -
Antilock Brake System
AC -
Alternating Current
A/C - Air
Conditioning
ACC -
Adaptive Cruise Control
ACC - Air
Conditioning Clutch
ACC -
Automatic Climate Control
accel -
Acceleration
ACCS - Air
Conditioning Cycling Switch
accum -
Accumulator
accy - Accessory
ACD - Air
Conditioning Demand
ACE - Active
Cornering Enhancement
ACL - Air
cleaner
ACM - Airbag
Control Module
ACM - Audio
Control Module
ACR4 - Air
Conditioning Refrigerant, Recovery, Recycling, Recharging
ACON - Air
Conditioning On
ACP - Air Conditioning
Pressure
act - Actual
ACT - Air
Charge Temperature
actv -
Activate
ACV -
(thermactor) Air Control Valve
A/D - Analog
to Digital
AD -
Accomodated Device
adapt -
Adaptive
adapts -
Adapters
ADAS -
Advanced Driver Assistance System
ADBV - Anti
Drainback Valve
ADC -
Automatic Distance Control
ADG -
Accomodated Device Gateway
adj - Adjust
ADL -
Automatic Door Lock
ADS -
Auxilliary Discriminating Sensor
ADU -
Analog-Digital Unit
AECM - Airbag
Electronic Control Module
A/F - Air
Fuel Ratio (see also AFR)
AFC - Air
Flow Control
AFC - Air
Fuel Control
AFCD -
Advanced Frontal Crash Dummy
AFCM -
Alternate Fuel Control Module
AFECM -
Alternate Fuel Engine Control Module
AFO -
Alternate Fuel Operation
AFR - Air
Fuel Ratio (see also A/F)
aft - After
AGSP - Auxilliary
Gauge Switch Pack
AGVS -
Automated Guided Vehicle System
AHLD -
Automatic Headlamp Levelling Device
AHR - Active
Head Restraint
ahrs - Amp
Hours
AHS - Active
Handling System
AIM -
Automotive Interior Material
AIR - Air
Injection Reaction (Secondary air injection)
AIRB -
Secondary Air Injection Bypass
AIRD -
Secondary Air Injection Diverter
AIRM -
Secondary AIR Pump Monitor
AIS -
Automatic Idle Speed
ALC -
Automatic Lamp Control
ALC -
Automatic Level Control
ALCL -
Assembly Line Communications Link (replaced with DLC)
ALDL -
Assembly Line Data Link (replaced with DLC)
ALM -
Adaptive Learn Matrix
ALR -
Automatic Locking Retractor
Alt -
Alternative
ALT -
Alternator (replaced with GEN)
AM -
Amplitude Modulation
AMB - Ambient
AMM - Air
Mass Meter
amp - Amplifier
amps - Amperes
or Amperage
AMS -
Automatic Music Search
AMT -
Automated Manual Transmission
AOD -
Automatic Overdrive
AODE -
Automatic Overdrive Electronic (transmission)
AODE-W - Automatic Overdrive Electronic - Wide ratio
(transmission)
AOS - Automatic
Occupant Sensing
AP -
Accelerator Pedal
APADS - Air
Conditioning Protection and Diagnostic System
APC -
Automatic Performance Control
APCM -
Accessory (or Auxilliary) Power Control Module
APECS -
Advanced Proportional Engine Control System
API - American
Petroleum Institute
APO -
Accessory Power Outlets
APP -
Accelerator Pedal Position
APT -
Adjustable part Throttle
ARC - Active
Roll Control
ARC -
Automatic Ride Control
ARS -
Adaptive Receptive System
ARS -
Automatic Restraint System
ARTHUR -
Automatic Radio system for Traffic situations on Highways and Urban Roads
ASA - Air
Signal Attenuator
ASA -
Automatic Slack Adjuster
ASARC - Air
Suspension Automatic Ride Control
ASC - Anti
Stall Control
ASD -
Automatic Shutdown
ASF - Audi
Space Frame
ASG - Automatic-Shift
Gearbox
ASM -
Acceleration Simulation Mode
ASM -
Accelerator and Servo control Module
ASM - Air
Solenoid Module
ASM - Alarm
Siren Module
asm -
Assembly
ASR -
Acceleration Slip Regulation
ASSYST - Active
Service System
ASTC -
Automatic Stability and Traction Control
ASTM -
American Society for Testing and Materials
A/T -
Automatic Transmission/Transaxle
ATC -
Automatic Temperature Control
ATDC - After
Top Dead Center
ATF - Active
Transfer Case
ATF -
Automatic Transfer Case
ATF -
Automatic Transmission Fluid
ATM -
Actuator Test Mode
AT-PZEV -
Advanced Technology Partial Zero Emission Vehicle
ATSLC -
Automatic Transmission Shift Lock Control
ATTS -
Advanced Torque Transfer System
ATX -
Automatic Transaxle
AWD - All
Wheel Drive
AWG -
American Wire Gage
AYC - Active
Yaw Control
AXOD -
Automatic Overdrive Transaxle
AXOD-E -
Automatic Overdrive Transaxle - Electronically Controlled
B
B+ - Battery
positive (voltage)
BARO -
Barometric (pressure)
BAS - Brake
Apply Sensor
batt - Battery
BBV - Brake
Booster Vacuum
BCA - Bias
Control Assembly
BCM - Body
Control Module
BECU - Body
Electronic Control Unit
BFC - Body
Function Controller
BHP - Brake
Horsepower
BLM - Block
Learn Multiplier (replaced with LT FUEL TRIM)
B-LVL - Bilevel
BLW - Brake
Lining Wear
BMAP - Barometric
and Manifold Absolute Pressure
bn - Bank
BOB -
Break-Out Box
BOO - Brake
On/Off
BP - Back
Pressure
BPA - Bypass
Air
BPCM - Battery
Pack Control Module
BPMV - Brake
Pressure Modulator Valve
BPP - Brake
Pedal Position
BPW - Base
Pulse Width
BSFC - Brake
Specific Fuel Consumption
BSW - Black
Sidewalls
BTCM - Brake
Torque Control Module
BTDC - Before
Top Dead Center
BTM - Battery
Thermal Module
BTSI - Brake
Transmission Shift Interlock
Btu - British
thermal units
BV - Battery
Voltage
C
C3I - Computer Controlled Coil Ignition
CAA -
Canadian Automobile Association
CAA - Clean
Air Act
CAB -
Controller, Antilock Brake
CAC - Charge
Air Cooler
CAFC - Company
Average Fuel Consumption (Canada)
CAFE -
Corporate Average Fuel Economy (USA)
cal -
Calibration
calc -
Calculated
CALID -
Calibration Identification
Calif -
California
CAMM -
Computer Aided Manufacturing Measurement
CAMS -
Computerized Automotive Maintenance System
CAN -
Controlled Area Network
CANP -
Canister Purge (solenoid)
CARB -
California Air Resources Board
CARS -
Canadian Automotive Repair and Service Council
CASE -
Cranking Angle Sensing Error
CAS GND - PCM
Case Ground
cass -
Cassette
CATS -
Computer Aided Test Suite
CC - Climate
Control
CC - Coast
Clutch
CC - Cruise
Control
CCC -
Computer Command Control
CCD -
Chrysler Collision Detection
CCCD -
Catalytic Converter Cool-Down
CCD -
Computer Controlled Dwell
CCDIC - Climate
Control Driver Information Center
CCFL -
Cold-Cathode Flourescent Lamp
CCM - Central
Control Module
CCM - Chassis
Control Module
CCM -
Comprehensive Component Monitor
CCM -
Convenience Charge Module
CCO -
Converter Clutch Override
CCOT - Cycling
Clutch Orifice Tube
CCP - Climate
Control Panel
CCP -
Controlled Canister Purge
CCRM -
Constant Control Relay Module
CCS - Climate
Controlled Seat
CCS - Coast
Clutch Solenoid
CCSM - Climate
Controlled Seat Module
CCW - Counter
ClockWise
CD - Compact
Disc
CDA -
Cylinder De-Activation
CDR -
Chrysler Diagnostic Readout
CDR - Crash
Data Retrieval
CDRV -
Crankcase Depression Regulator Valve
CDX - Compact
Disc Changer
CE -
Commutator End
CEL - Check
Engine Lamp (replaced with MIL)
CEAB - Cold
Engine Air Bleed
CEMF - Counter
Electromotive Force
CEMS -
Catalyst Efficiency Management System
CEMS -
Carbureted Engine Management System
CEX - Cabin
Exchanger
CFI - Central
Fuel Injection (replaced with TBI)
CFI -
Continuous Fuel Injection
CFI - Cross
Fire Injection
cfm - cubic
feet per minute
CG - Center
of Gravity
CHMSL - Center
High Mounted Stop Lamp
CID -
Component Identification
CID - Cubic
Inch Displacement
CID -
Cylinder Identification
CJC -
Collision Judgement Coefficient
CKP -
Crankshaft Position
CKT - Circuit
CL - Closed
Loop
CLC -
Converter Lockup Clutch (replaced with TCC)
CLCC - Closed
Loop Carburetor Control
CLS - Coolant
Level Switch
CLTBI - Closed
Loop Throttle Body Injection
CLYC - Closed
Loop Yaw Control
CLNT - Coolant
CMC -
Compressor Motor Controller
cmd - Command
cmdd -
Commanded
CMFI - Central
Multi-port Fuel Injection
CMP -
Camshaft Position
CMVSS -
Canadian Motor Vehicle Safety Standards
CNG -
Compressed Natural Gas
CO - Carbon
Monoxide
CO2 - Carbon
Dioxide
COBDIMR -
Customer On Board Diagnostics Inspection/Maintenance Readiness
COMBATT -
Commercially Based Tactical Truck
combo -
Combination
COMDC -
Commanded Duty Cycle
comm - Communication
cond -
Condition
const -
Constant
COP - Coil On
Plug
COP -
Computer Operating Properly
CP -
Canister Purge
CPA -
Connector Position Assurance
CPC -
Camshaft Position Control
CPI - Central
Port Fuel Injection
CPL - Control
Parts List
CPM -
Cellular Phone Module
CPP - Clutch
Pedal Position
CPS - Cam
Profile Switching
CPS - Center
Panel Switches
CPS - Central
Power Supply
CPS -
Childseat Postioning Sensor
CPU - Central
Processing Unit
CRR - Cool
Running Rotor
CRT - Cathode
Ray Tube
CRTC - Cathode
Ray Tube Controller
CRTS -
Continuously Regenerating Trap System
CS -
Charging System
CSC -
Commercial Stripped Chassis
CSE GND - PCM
Case Ground
CSFI - Central
Sequential Fuel Injection
CSI -
Compression Sense Ignition
CSM - Central
Security Module
cSt - Centistokes
CSTO -
Compression Sense Time-Out
CTD - Content
Theft Deterent
CTM - Central
Timer Module
CTOX -
Continuous Trap Oxidizer
CTP - Closed
Throttle Position (switch)
CTS - Coolant
Temperature Sensor
CV -
Constant Velocity
CVN -
Calibration Verification Number
CVRSS -
Continuously Variable Road Sensing Suspenion
CVRTD -
Continuously Variable Real Time Damping
CVS -
Canister Vent Solenoid
CVT -
Continuously Variable Transmission, Transaxle
CWS -
Continental Wheel System
CZS - Crash
Zone Sensor
