Abbreviations and Acronyms

 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

 V - Four (Venturi) Valve (four barrel carburetor)

 WAL - Four Wheel Antilock

 WAS - 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 - 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

 BS - Antilock Brake System

 C - Alternating Current

 A/C - Air Conditioning

 ACC - Adaptive Cruise Control

ACC - Air Conditioning Clutch

ACC - Automatic Climate Control

accel - Acceleration

ACCS - Air Conditioning Cyclic 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 - Adapter

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

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

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

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AP - Accelerator Pedal

APP - Accelerator Pedal Position

APADS - Air Conditioning Protection and Diagnostic System

APECS - Advanced Proportional Engine Control System

API - American Petroleum Institute

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 - 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

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