Glossary “accuracy” Definition:
Comparison of an indicated value, to a value accepted as a standard.
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ACCUS
Glossary “ACCUS” Definition:
Acronym for the Automobile Competition Committee for the United States.
ACD
Glossary “ACD” Definition:
Air Conditioning Demand
ACDS
Glossary “ACDS” Definition:
Air Conditioning Diagnostic Switch
ACE
Glossary “ACE” Definition:
Automotive Computerized Equipment
accidental ground
Glossary “accidental ground” Definition:
Condition that exists when a wire, connected to the positive battery terminal, contacts a grounded metal part of the vehicle.
ACCS
Glossary “ACCS” Definition:
Air Conditioning Cycling Switch
accumulator
Glossary “accumulator” Definition:
1). A tank located in the outlet of the evaporator to receive the refrigerant that leaves the evaporator. Used to store or hold liquid refrigerant in an air-conditioning system. This device is constructed to ensure that no liquid refrigerant enters the compressor. 2). Device that cushions the motion of a clutch and servo action in an A/T. 3). Container that stores hydraulic fluid under pressure that can be used for shock absorbers, or as an alternate pressure source for an ABS system.
acceptable weld
Glossary “acceptable weld” Definition:
A weld that meets all the requirements and the acceptance criteria prescribed by the welding specifications.
access fittings
Glossary “access fittings” Definition:
A service port or service valve. Also may refer to an access valve.
access slot
Glossary “access slot” Definition:
Opening that permits access to a device, such as the openings in the backing plates of a brake system that allow access to the star wheel adjuster.
access time
Glossary “access time” Definition:
The time that is required to retrieve information from a system’s memory.
accelerator pedal position sensor
Glossary “accelerator pedal position sensor” Definition:
Sensor designed to send an electrical signal to the PCM, relative to the position of the accelerator pedal.
accelerator pump
Glossary “accelerator pump” Definition:
Pump in the carburetor connected by linkage to the accelerator pedal that momentarily enriches the air-fuel mixture when the accelerator is depressed at low speed, upon acceleration.
accelerometer
Glossary “accelerometer” Definition:
Instrument that measures a vehicle’s linear or lateral rate of acceleration in g force or feet per second.
acceleration slip regulation (ASR)
Glossary “acceleration slip regulation (ASR)” Definition:
Traction Control system manufactured by Bosch.
acceleration squat
Glossary “acceleration squat” Definition:
Tendency of the rear of a vehicle to press down on the rear springs during hard acceleration.
accelerator
Glossary “accelerator” Definition:
1). A foot-operated pedal, linked to the throttle valve of the carburetor and used to control the flow of air and fuel into the engine. 2). A fast evaporating thinner or reducer used to speed up the drying time.
accelerator pedal
Glossary “accelerator pedal” Definition:
A foot-operated device for controlling the flow of fuel and air into the engine.
AC-TVS
Glossary “AC-TVS” Definition:
Air Cleaner – Thermal Vacuum Switch