A -               Amperes A/C -           Air Conditioning A/T -           Automatic Transmission/Transaxle ABS -          Anti-Lock Brakes AC -            Alternating Current ACCUM -    Accumulator ACCY -       Accessory ACT -         Air Charge Temperature Sensor ADJ -          Adjust or Adjustable ADV -         Advance AFR -         Air Fuel Ratio AFS -         Airflow Sensor AI -             Air Injection AIS -           Air Injection System ALDL -       Assembly Line Data Link Alt. -           Alternator or Altitude Amp. -        amp/amps - Ampere APS -         Absolute Pressure Sensor ASCS -       Air Suction Control Solenoid ASD -         Auto Shutdown ASV -         Air Suction Valve ATC -         Automatic Temperature Control ATDC -      After Top Dead Center ATF -         Automatic Transmission Fluid ATS -         Air Temperature Sensor Aux. -         Auxiliary Avg. -         Average AWD -        All Wheel Drive