refuelling JAGUAR XFR 2010 1.G Workshop Manual
Page 54 of 3039
Hydrofluorocarbon HFC  High tension HT  Hydrocarbon HC  Idle Air Control IAC 
Stepper motor driven device which varies the volume of air by-passing the 
throttle to maintain the programmed idle speed Intake Air Temperature IAT Temperature of intake air Inertia Fuel Shut-off IFS 
An inertia system that shuts off the fuel supply when activated by pre-determined force limits brought about by (e.g.) collision Input Shaft Speed ISS Indicates input shaft speed Key On, Engine Off KOEO  Key On, Engine Running KOER  Kilogram (mass) kg  Kilogram (force) kgf  Kilogram force per square 
centimeter kgf/cm² 
 Kilometer km  Kilometer per hour km/h  Kilopascal kPa  Kilovolt kV  Knock Sensor KS 
Sensor which detects the onset of detonation, and signals the ECM to 
retard the ignition Liquid Crystal Display LCD 
Optical digital display system, to which applied voltage varies the way the crystals reflect light, thereby modifying the display Lighting Control Module LCM  Light Emitting Diode LED  Low Tension LT 
Primary circuit of the ignition system, linking the battery to the primary winding in the ignition coil Left-Hand LH  Left-Hand Drive LHD  Mass Air Flow MAF 
System which provides information on the mass flow rate of the intake air 
to the engine Manifold Absolute Pressure MAP Absolute pressure of the intake manifold air Manifold Absolute Pressure and Temperature MAPT 
 Malfunction Indicator Lamp MIL 
A required on-board indicator to alert the driver of an emission related 
malfunction Meter (measurement) m  Metric (screw thread, e.g. M8) M  Farad F Unit of electrical capacitance Millimeter mm  Millimeter of mercury mmHg  Millisecond ms  Model year MY  Newton N SI unit of force. 1 N = 0.2248 pounds force Newton Meter Nm SI unit of torque. Must not be confused with nm (nanometer) Negative Temperature 
Coefficient NTC 
 Naturally aspirated N/A 
Fuelling system using intake air at atmospheric pressure; not supercharged or turbocharged Noise, Vibration and Harshness NVH  North American Specification NAS Vehicles for sale in the USA and Canadian markets On-Board Diagnostic OBD 
A system that monitors some or all computer input and output control 
signals. Signal(s) outside the pre-determined limits imply a fault in the system or a related system Oxides of Nitrogen Nox  Oxygen Sensor O2S A sensor which detects oxygen content in the exhaust gases On-board Refuelling Vapour Recovery ORVR 
 Output State Control OSC  Output Shaft Speed OSS  Passenger Air Bag Deactivation PAD  Pulsed Secondary Air Injection PAIR  Passive Anti-Theft System PATS  Positive Crankcase Ventilation PCV  Parameter Identification PID 
An index number referring to a parameter within a module without knowledge of its storage location Park/Neutral Position PNP  Pulse Width Modulation PWM  Programmable Electronic 
Control Units System PECUS 
Process whereby a common ECM is programmed on the production line to 
suit the market requirements of a particular vehicle