F 250 4WD Super Duty V10-6.8L VIN S (2001)
MON: Motor Octane Number.
Monolithic Substrate: The ceramic honeycomb structure used in the catalytic converter.
MSOF: Manual Shift-on-the-Fly.
MY: Model Year.
NA: Naturally Aspirated. Engine that is not supercharged or turbocharged.
NAAO: North American Automotive Operations.
NC: Normally Closed.
NG: Natural Gas. A system capable of using natural gas for vehicle operation.
NGS: New Generation STAR (Self-Test Automatic Readout) tester.
NGVM: Natural Gas Vehicle Module.
NO: Norm ally Open.
NO(x): Oxides of Nitrogen. Formed at high combustion temperatures.
NVH: Noise, Vibration, Harshness. A classification of vehicle concerns.
OASIS: On-Line Automotive Service Information System.
OBD, OBD-II: On-Board Diagnostics, On-Board Diagnostics Second Generation. A system that monitors PCM input and output control signals.
On Demand Test: Technician initiated "KOEO" and "KOER" tests performed by the PCM.
OC: Oxidation Catalytic converter. A catalytic converter system that reduces levels of HC and CO.
OCT ADJ: Octane Adjust. Compensating strategy that adjusts for changes in fuel octane.
OEM: Original Equipment Manufacturer.
OHC: OverHead Cam. An engine configuration that uses a single camshaft positioned above the valves.
OWL: Overheat Warning Lamp or its signal output from the PCM. Turns the TEMP warning lamp ON when engine oil temperature exceeds safe limits.
Open Circuit: A circuit which does not provide a complete path for flow of current.
OL: Open Loop. An operating condition based on instructions not modified by PCM feedback.
O(2)S 11/12/21/22: Oxygen Sensor and its relative position in the exhaust system. Detects oxygen content in exhaust gasses.
OSC: Output State Control.
OSS: Output Shaft Speed.
Ozone: A blue gaseous form of oxygen (O(3)) formed naturally by electric discharge or exposure to ultraviolet radiation.
Particulate: Small solid matter found in exhaust gases, especially prevalent in diesel engines.
PATS: Passive Anti-Theft System.
PATSIL: Passive Anti-Theft System Indicator Light.
PATSIN: Passive Anti-Theft System Receive Signal.
PATSOUT: Passive Anti-Theft System Transmit Signal.
PATSTRT: Passive Anti-Theft System Starter Relay Control
