Spindy's: Automotive Acronyms

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O2 - Oxygen

O2S - Oxygen Sensor

OASIS - Online Automotive Service Information System; Organization for the Advancement of Structure

Information Standards

OBD - On Board Diagnostics

OBD I - On Board Diagnostics, Generation 1

OBD II - On Board Diagnostics, Generation 2

OC - Oxidation Catalyst Only

OCC - Output Circuit Check

OCR - Oil Control Ring

OCS - Opportunity Charge Station

OD - Outside Diameter; Overdrive

ODM - Output Drive Module

ODO - Odometer

OE - Original Equipment

OEM - Original Equipment Manufacturer

OHC - Overhead Camshaft

OL - Open Loop

OLED - Organic Light Emitting Diode

OPR - Over Pressure Relief

ORC - Occupant Restraint Controller; Oxidation Reduction Converter

ORVR - On-board Refueling Vapour Recovery

OSC - Output State Check; Output State Control

OSGI - Open-Service Gateway Interface

OSS - Output Shaft Speed

OTC - Overhead Trip Computer

OTIS - Overhead Travel Information System

OTM - Output Test Monitor

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Here is a list of Automotive Acronyms and Abbreviations. These are not specific to just Classic Cars, but covers all Automotive Acronyms and Abbreviations in general. This is not an all inclusive list and as we come across more, we will add them here. Drop us a note if you see something we missed. Note that some acronyms have more that one meaning.

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