Glossary “TROP” Definition:
Transmission Range Output Park
TRON
Glossary “TRON” Definition:
Transmission Range Output Neutral
TROD
Glossary “TROD” Definition:
Transmission Range Over-Drive
TRL
Glossary “TRL” Definition:
Transmission Range Low, or Transmission Range Lever
Triumph
Glossary “Triumph” Definition:
This Really Is Unreliable Man, Please Help
tripod
Glossary “tripod” Definition:
Central part of certain CV joints having three arms or trunnions with needle bearings and rollers running in grooves or races in the assembly.
triple evacuation
Glossary “triple evacuation” Definition:
Process of evacuating a system that involves three evacuations of the A/C system. Usually performed if the system has been opened for more than 24 hours.
trip
Glossary “trip” Definition:
1). A key cycle (key on, run, key off/power-down ) where the enable criteria for a particular diagnostic are met and the diagnostic test runs. 2). Ignition cycle and engine run sequence in which the PCM runs emission control monitors.
trim screw
Glossary “trim screw” Definition:
Screw that has a washer attached to it. It improve the appearance and helps keep the trim from shifting.
trim pad tool
Glossary “trim pad tool” Definition:
Tool designed to reach behind interior panels to pop out and remove clips.
triggering
Glossary “triggering” Definition:
Using a signal to start one or more events.
trigger wheel
Glossary “trigger wheel” Definition:
Term for an armature used in a magnetic pick-up (VRS), Hall effect or optical sensing device.
trigger source
Glossary “trigger source” Definition:
Signal that supplies the scope with its trigger or starting point. This can be either internal or from an external source
trigger slope
Glossary “trigger slope” Definition:
Slope that a trigger source signal must reach before the trigger circuit initates a sweep.
trigger mode
Glossary “trigger mode” Definition:
Mode that determines whether or not the oscilloscope draws a waveform if it does not detect a trigger
trigger level
Glossary “trigger level” Definition:
Voltage level that a trigger source signal must reach befor the trigger circuit intiates a sweep
trigger holdoff
Glossary “trigger holdoff” Definition:
A control that allowes for adjustment of the period of time after a valid trigger during which the oscilloscope cannot trigger.
trickle charger
Glossary “trickle charger” Definition:
Battery charger with a very low output used to slowly recharge a battery.
trichloroethylene
Glossary “trichloroethylene” Definition:
Chlorinated cleaning solvent often used in aerosol brake cleaner.
triaxle suspension
Glossary “triaxle suspension” Definition:
A suspension consisting of three axles with a means of equalizing weight between them.