Commonly Used Abbreviations - General Information: "A"

A: Amperes
ABS: Anti-Lock Brakes
ABRS: Air Bag Restraint System
AC: Alternating Current
A/C: Air Conditioning
ACCS: A/C Cycling Switch
ACCUM: Accumulator
ACCY: Accessory
ACT: Air Charge Temperature Sensor
ADJ: Adjust or Adjustable
ADV: Advance
AFS: Airflow Sensor
AI: Air Injection
AIR or A.I.R.: Air Injection Reactor
AIS: Air Injection System
Alt.: Alternator or Altitude
Amp./amp/amps: Ampere
ASCS: Air Suction Control Solenoid
ASD: Auto Shutdown
ASDM: Air Bag System Diagnostic Module
ASV: Air Suction Valve
A/T: Automatic Transmission/Transaxle
ATC: Automatic Temperature Control
ATDC: After Top Dead Center
ATF: Automatic Transmission Fluid
ATS: Air Temperature Sensor
Aux.: Auxiliary
Avg.: Average
AXOD: Automatic Transaxle Overdrive (Ford Models Only)