Glossary “dial” Definition:
An instrument with an analog-gauge indicator.
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dial caliper
Glossary “dial caliper” Definition:
Measuring instrument capable of taking inside, outside, depth and step measurements. It can measure these dimensions from 0 – 6 inches. Metric dial calipers typically measure from 0 – 150mm in increments of 0.02mm.
dial indicators
Glossary “dial indicators” Definition:
Calibrated in 0.001-inch increments, used to measure movement. Common uses include measuring valve lift, journal concentricity, flywheel or brake rotor runout, gear backlash, crankshaft and transmission end play. Metric dial indicators are also available.
dial type torque wrench
Glossary “dial type torque wrench” Definition:
Shows torque values using a needle on a dial. It is the most accurate type.
Diagnostic Trouble Code
Glossary “Diagnostic Trouble Code” Definition:
A number generated by the vehicles computer to indicate a flaiure in a sensor, circuit, or the computer itself
Diagnostic Trouble Codes (DTC)
Glossary “Diagnostic Trouble Codes (DTC)” Definition:
Any code stored in a control module memory used to aid the technician in the diagnosis of a system.
diagnostician
Glossary “diagnostician” Definition:
A person who determines the cause of problems when given all the signs and symptoms.
diagonal brake system
Glossary “diagonal brake system” Definition:
Dual-brake system with separate hydraulic circuits connecting diagonal wheels together; right front to left rear and left front to right rear.
diagnostic tree
Glossary “diagnostic tree” Definition:
Part of the service information that provides a step-by-step diagnostic procedure to follow when troubleshooting electrical related concerns.
diagnostic test mode (DTM)
Glossary “diagnostic test mode (DTM)” Definition:
A capacity of the OBD system. This may include different functional states to onserve signals, a base level to read DTC’s, a monitor level which includes information on signal levels, bi-directional control with testers, and the ability to interface with remote diagnostic testers.
Diagnostic Read Out BOX
Glossary “Diagnostic Read Out BOX” Definition:
Chryslers Scan tool now up to DBR IV
diagnosis charts
Glossary “diagnosis charts” Definition:
Charts that give logical steps for finding the source of problems.
diagnostic
Glossary “diagnostic” Definition:
Any number of on-board tests run by the diagnostic management system which checks for malfunctions, errors or breakdowns in vehicle systems or components.
diagnostic code
Glossary “diagnostic code” Definition:
Numbers or codes obtained from a computer either by the use of flashing “Check Engine” light, or with the use of a scantool
diagnostic executive
Glossary “diagnostic executive” Definition:
The diagnostic management system software that stores testing results and controls the illumination of the malfunction indicator lamp. It also determines when the critera has been met to run OBD-II monitors.
diagnostic management system
Glossary “diagnostic management system” Definition:
The PCM system responsible for preforming testing of the powertrain components and systems, recording testing results and preforming test fail actions.
diagnostic mode
Glossary “diagnostic mode” Definition:
This Chrysler mode of operation is used by the Logic Module to indicate malfunctions to the technician through flash codes.
diag
Glossary “diag” Definition:
Acronym form of Diagonal, or Diagnose. or Diagnosis
diagnose
Glossary “diagnose” Definition:
To recognize by signs and symptoms.
diagnosis
Glossary “diagnosis” Definition:
1). A standard procedure that is followed to locate and identify the cause of a malfunction. 2). Identifying the cause of a problem or malfunction by observing its signs and symptoms.