Glossary “DDA” Definition:
Detroit Diesel Allison
d
DDC
Glossary “DDC” Definition:
Diesel Data Center
DDD
Glossary “DDD” Definition:
Dual Diaphragm Distributor
dbl
Glossary “dbl” Definition:
Acronym form of Double
DC
Glossary “DC” Definition:
Direct Current.
D-cam
Glossary “D-cam” Definition:
Pattern used for grinding pistons in a cam shape with a 0.012 inch (0.3mm) difference between the thrust face and the pinhole side.
DC Coupling
Glossary “DC Coupling” Definition:
Oscilloscope setting that allows the scope to display both AC and DC signals.
DCL
Glossary “DCL” Definition:
Data Communications Link
DCS
Glossary “DCS” Definition:
Deceleration Control System
DBC
Glossary “DBC” Definition:
Dual-Bed Catalytic.
data link connector (DLC)
Glossary “data link connector (DLC)” Definition:
The vehicle connector that allows the scanner to interface with the vehicles PCM. On OBD-II vehicles, the DLC must be located on the left hand side of the passenger compartment in view of the service technician, on most vehicles.
data processing
Glossary “data processing” Definition:
The handling of information in a series of prescribed operations such as adding, moving, perform logic, input, output, read, write, etc, to achieve a desired result.
data processor
Glossary “data processor” Definition:
Device that is capable of performing data operations, such as a microcomputer.
datum point
Glossary “datum point” Definition:
Starting point for measuring an object.
DB
Glossary “DB” Definition:
Dark Blue
Data Bus
Glossary “Data Bus” Definition:
A collection of wires through which data is transmitted from one part of the computer to another or from one computer to another (multiplexing or networking).
Data Line
Glossary “Data Line” Definition:
A scan tool transmission line designed to read sensor values and fault codes read from the RAM memory not directly from the circuit.
data link
Glossary “data link” Definition:
Device in a computer system that sends and receives digital signals.
data base
Glossary “data base” Definition:
Any collection of data organized for accessing and retrieving
dashpot
Glossary “dashpot” Definition:
Device found on the carburetor and some early TBI systems that prevents a fast-closing throttle action when the throttle is rapidly released, to prevent engine from stalling.