Glossary “PSPS” Definition:
Power Steering Pressure Switch
p
psia
Glossary “psia” Definition:
pounds per square inch, absolute.
psig
Glossary “psig” Definition:
pounds per square inch, gauge.
PSOM
Glossary “PSOM” Definition:
Programmable Speedometer Odometer Module
PSOV
Glossary “PSOV” Definition:
Canister Purge Shut Off Valve
PSD
Glossary “PSD” Definition:
Porsche Barrier Differential, or Passenger Sliding Door
PSE
Glossary “PSE” Definition:
Pneumatic System Equipment
P-Sensor
Glossary “P-Sensor” Definition:
Pressure Sensor
psi
Glossary “psi” Definition:
pounds per square inch.
PS
Glossary “PS” Definition:
Purge Solenoid, or Position Sensor, or Power Steering
prove out circuit
Glossary “prove out circuit” Definition:
Function of the ignition switch that completes the warning light circuit to ground when it is in the START position, so the warning lights will be on during engine cranking to indicate to the driver that the bulbs are working properly.
PR/RV
Glossary “PR/RV” Definition:
Pressure Relief / Rollover Valve
Prussian blue
Glossary “Prussian blue” Definition:
Blue pigment in solution applied to the surface area used to determine the contact area between two mating surfaces.
P/S
Glossary “P/S” Definition:
Power Steering, or Power Seat
protocol
Glossary “protocol” Definition:
An agreed-upon format for transmitting data between two devices.
proton
Glossary “proton” Definition:
A positively-charged particle in the nucleus of an atom. With a mass about 1845 times larger than an electron, and a charge equal to it.
Proton Excange Membrane (PEM)
Glossary “Proton Excange Membrane (PEM)” Definition:
Polymer sheet that serves as the electrolyte in a type of fuel cell.
prototype (proto)
Glossary “prototype (proto)” Definition:
1). An individually built test version of a new design of a car or system. 2). An individually built vehicle in racing when an insufficient number of vehicles have been manufactured to be placed in a category.
proto
Glossary “proto” Definition:
Acronym for prototype.
property class
Glossary “property class” Definition:
Number stamped on the end of a metric bolt to indicate the hardness of the bolt.