Glossary “TS1” Definition:
Transmission Range Sensor 1st
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trunk unit
Glossary “trunk unit” Definition:
Early automotive A/C evaporators that mounted in the trunk compartment and was channeled through the package tray.
trunnion
Glossary “trunnion” Definition:
Ends of a universal joint cross where the bearings ride.
truth table
Glossary “truth table” Definition:
A chart used to show the output condition of a logic gate or circuit as compared to different conditions of input.
trueing
Glossary “trueing” Definition:
1). Straightening bent shafting or parts. 2). Dressing a grinding wheel. 3). Setting up a flywheel or pulley so that it runs evenly without sideways motion at its rim. 4). Making an edge straight or bringing two parts square with each other.
trunk
Glossary “trunk” Definition:
Storage compartment at the rear of most passenger cars.
trunk floor panel
Glossary “trunk floor panel” Definition:
Stamped steel part that forms the bottom of the rear storage compartment.
TRSS
Glossary “TRSS” Definition:
Transmission Range Selector Switch
TRR
Glossary “TRR” Definition:
Transmission Range Reverse
TRS
Glossary “TRS” Definition:
Transmission Regulated Spark system, or Transmission Range Sensor
TRSCV
Glossary “TRSCV” Definition:
Throttle Return Solenoid Control Valve
trouble code
Glossary “trouble code” Definition:
A number generated by a computer to indicate a failure in a sensor, circuit, or the computer itself. The number may be communicated to the technician by the flashing of a dash light, or through a scan tool when the diagnostic mode is entered. Also known as failure code.
trouble diagnosis
Glossary “trouble diagnosis” Definition:
The work required to find the cause of a problem.
troubleshooting
Glossary “troubleshooting” Definition:
The location of a problem or malfunction by a process of elimination.
TRL
Glossary “TRL” Definition:
Transmission Range Low, or Transmission Range Lever
TROD
Glossary “TROD” Definition:
Transmission Range Over-Drive
TRON
Glossary “TRON” Definition:
Transmission Range Output Neutral
TROP
Glossary “TROP” Definition:
Transmission Range Output Park
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.
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.