F 250 4WD Super Duty V10-6.8L VIN S (2001)
CMS: Catalyst Monitor Sensor. Downstream H025.
CMVSS: Canadian Motor Vehicle Safety Standards.
CNG: Compressed Natural Gas.
CO: Carbon Monoxide. A colorless, odorless and toxic gas that is a component of auto exhaust emissions.
CO(2): Carbon Dioxide. A colorless, odorless gas that is a normal by-product of the combustion of fuel.
Coil: A device consisting of windings around an iron core. In a spark ignition system, designed to increase voltage.
Cold Soak: Time given to a vehicle to sit at a low temperature (typically below 68°F / 20°C) until the temperature of external and internal components
stabilize.
CONT: Continuous Memory. The portion of KAM (Keep Alive Memory) used to store DTCs generated during Continuous Memory Self-Test.
Continuous Memory Self- Test: A continuous test of the EEC system conducted by the PCM whenever the vehicle is operating.
CPP: Clutch Pedal Position. Indicates clutch pedal position.
CPP Switch: Clutch Pedal Position Switch. Located on the clutch pedal and detects when the clutch pedal is depressed.
CQIS: Common Quality Indicator System.
CSE GND: Case Ground.
CT: Closed Throttle Mode. A mode when the PCM varies the pulse width of the fuel injectors to obtain the air/fuel mixture appropriate for closed
throttle operation.
CTO: Clean Tach Output. Signal used to drive the instrument panel tachometer.
Data Communications Link: A communication path between various in-vehicle electronic modules. Accessed by scan tools through the Data Link
Connector (DLC).
DC: 1. Direct Current. Electric current flowing in one direction. 2. Duty Cycle. The voltage measurement of ON time versus the full cycle period,
expressed in percent.
DCL: Data Communication Link.
DI: Distributor Ignition. A system in which the ignition coil secondary circuit is sequenced by a distributor.
Digital: Controls process information by switching the current or voltage ON and OFF.
DLC: Data Link Connector. J1962 connector providing access to vehicle diagnostic information.
DOHC: Dual Overhead Cam. An engine configuration that uses two camshafts positioned above the valves.
DOL: Data Output Line. A circuit that sends certain information from the PCM to the instrument cluster.
DPFEGR: Differential Pressure Feedback Exhaust Gas Recirculation. System that uses a pressure transducer to control the operation of the Exhaust
Gas Recirculation (EGR) Vacuum Regulator Valve.
DRI: Deposit Resistant Injector. A fuel injector designed to prevent build-up of carbon and other unwanted deposits.
DRL: Daytime Running Lamps. A system that keeps the vehicle running lamps on at all times while the vehicle is operating.
DTM: Diagnostic Test Mode. A level of capability in an On-Board Diagnostic (OBD) system.
DTC: Diagnostic Trouble Code. An alpha/numeric identifier for a fault condition identified by the On-Board Diagnostic System.
DVOM: Digital Volt-Ohm Meter.
E-85: Fuel containing 85% ethanol alcohol.
