Jaguar Acronyms, Abbreviations & Terms
This glossary was compiled from Jaguar Workshop Manuals, Dealer Training Manuals, Owner’s Manuals, TSBs, new model brochures, press releases, Jaguar web pages, periodicals, the Jaguar Forums, JCNA Concours Manual, etc. Please send any additions or corrections to Don B.
For the sake of brevity I have omitted most easily-understood North American/Queen’s English cognates (aluminum/aluminium, program/programme, vapor/vapour, etc.) For additional information, see the separate thread of Jaguar Original Equipment Manufacturers (OEM) Thanks to the following for contributing terms or corrections to this list: JagV8, H20Boy, Translator, Thermo, JimC64, iscamerica, bdboyle, rocklandjag, theJPster, GrahamPhotog and b1mcp. +ve = Positive –ve = Negative 1234yf = HFO-1234yf, new EPA-approved DuPont/Honeywell refrigerant that may replace R-134a 2BBL = Two-barrel carburetor 2DR = Two-door 2OHC = DOHC, Dual- or Double Overhead Cam 2WD = Two-Wheel Drive 420 = Jaguar compact sporting saloon produced 1966-68, also known as the Daimler Sovereign 420G = New name for the Jaguar Mark X large luxury saloon from 1966 4BBL = Four-barrel carburetor 4DR = Four-door 4WD = Four Wheel Drive, selectable 2WD or 4WD system (not to be confused with AWD) A = Ampere, Amperes; Acceleration A Bank = (cylinders 1, 3, 5 or 1, 3, 5, 7) (Bank 1, RH Bank) A-Pillar = A-Post, structure that connects roof to chassis alongside the windshield/screen A-Post = A-Pillar, structure that connects roof to chassis alongside the windshield/screen AAC = Auxiliary Air Valve AAFV = Adaptive Air Flow Value (AMFR) AAI = Air Assist Injection AAIV =Air Assist Injection Valve AAMFR = Adaptive Air Mass Flow Rate (AAFV, AFR, AMFR) AAT = Ambient Air Temperature Sensor (AATS) AATS = Ambient Air Temperature Sensor (AAT) ABC = After Bottom Center, After Bottom Dead Center (ABDC) ABDC = After Bottom Dead Center, After Bottom Center (ABC) ABS = Anti-lock Brake System, ABS Control Module ABS Sensor = Anti-lock Brake System wheel speed sensor (WSS) ABSSCP = Anti-lock Brake System Speed Control Processor AC = Alternating Current AC or A/C = Air Conditioning (AC) A/C CM = Air Conditioning Control Module (A/C ECU, ATC, CCM, CC ECU) A/C ECU = Air Conditioning Electronic Control Module (A/C CM, ATC, CCM, CC ECU) ACC =Accessory, A/C Clutch, Adaptive Cruise/Speed Control, ACC Module (ACCM, ASCM) ACCM = Adaptive Cruise/Speed Control Module (ACC, ASCM) Accumulator = Spherical reservoir in which hydraulic fluid is held under pressure (ATE or ACDelco) ACEA = Association des Constructeurs Européens d’Automobiles, European standards organization ACJC = Australian Council of Jaguar Clubs ACM = Audio Control Module or Audio Connectivity Module ACT = Air Charge Temperature, Air Charge Temp. Sensor (CTS, IAT, IATS, MAT, MCT, VAT) A/D = Analog-to-Digital (see D/A) ADAS = Advanced Driver Assistance Systems (see LKA, Mobileye, Gentex) ADC = Analog-to-Digital Converter (see DAC) ADC = Active Differential Control, Jaguar EAD system based on GKN Driveline’s ETM (w.s.) ADCM = Active Dampening Control Module (ADM) (controls CATS/ECATS, part of ASM on X350 & late S-Type) ADHLS = Axle Deflection Height Level System (LCM) ADHLS_L = Left Hand Axle Deflection Height Level System (LHLCM) ADHLS_R = Right Hand Axle Deflection Height Level System (RHLCM) ADM = Adaptive Damping Module (ADCM) (controls CATS/ECATS, part of ASM on X350 & late S-Type) ADRC = Adaptive Dampening Ride Control Module AE = AutoEnginuity, an advanced professional OBD diagnostic system AEB = Autonomous Emergency Braking AED = Automatic Enrichment Device AEM = Active Engine Mount Aerial = Antenna Aeroscreen = A low windscreen as often seen on early Jaguar racing cars AF or A/F = Air Flow, Air/Fuel, Air-Fuel Ratio (AFR), Automatic Frequency Switching (radio) AF or A/F Across the Flats, wrench size based on fastener head size rather than shaft diameter AFM = Air Flow Meter (AMS, MAF, MAFS, MAS) AFR = Air/Fuel Ratio or Air Flow Rate (AAFV, AAMFR, AMFR) AFSV = Air Flow Sensor Voltage, MAF sensor voltage Agent, Main = Jaguar Dealer/Dealership AGM = Absorbed Glass Mat battery, type of VRLA with electrolyte contained in fiberglass mats Ah = Ampere-Hour, a measure of Quantity of Electricity (Q), a measure of battery capacity AHB = Automatic High-Beam control AHCM = Auxiliary Heater Control Module AHR = Active Head Restraint AIR = Antipollution Industrial Research, firm of Michael May, designer of HE Fireball cylinder head AIR = Secondary Air Injection System Air Cleaner = Air Filter Air Cleaner Box = Air Filter Housing Air Filter = Air Cleaner Air Filter Housing = Air Cleaner Box Air Mass Sensor = Mass Air Flow Sensor (AFM, MAF, MAFS) AIRC = Air Injection Check Valve, Secondary Air Injection Check Valve (SAIRC) AIRP = Air Injection Regenerative Pump, Secondary Air Injection Pump (SAIP) AKA or a.k.a. = Also Known As AKI = Anti-Knock Index, fuel performance rating system, same as (R+M/2); see MON, RON Alfin = ALuminium-FINned brake drums fitted to some XK120s to help overcome brake fade Allen screw = Set screw, Grub screw Alligator Clip = Crocodile Clip Alloy = Aluminum/Aluminium or Magnesium Wheel or Rim ALR = Automatic Locking Retractor Alternator = Generator (AC), see Dynamo Ambla = Vinyl upholstery fabric with expandable knit backing introduced by Jaguar in 1968 Amecoil = AMECA tradename for helical thread insert in Amelock nuts used on many Jaguar axles Amelock = AMECA trademark for self-locking nut with Amecoil insert, used on many Jaguar axles AMFR = Air Mass Flow Rate, Adaptive Air Mass Flow Rate (AAFV, AAMFR, AFR) Amp, Amps = Ampere, Amperes AMP = Amplifier, Audio Power Amplifier Ampere = Unit of Electric Current, the measure of electric charge flowing in a circuit (Amps), see Volt AMRE = Automotive Maintenance & Repair Association, organization behind MAP AMS = Air Mass Sensor (AFM, MAF, MAFS, MAS) ANSI = American National Standards Institute Establishes standards such as the UTS (w.s.) Antenna = Aerial Anti-clockwise = counter-clockwise Antipollution Industrial Research = AIR, firm of Michael May, designer of HE Fireball cylinder head Anti-roll Bar = Anti-sway bar, sway bar, stabilizer bar, torsion bar Anti-sway Bar = Anti-roll bar, sway bar, stabilizer bar, torsion bar AP = Accelerator Pedal API = American Petroleum Institute, trade assoc. that establishes motor oil stds.; see ILSAC, ACEA APP = Accelerator Pedal Position Sensor APP1= Accelerator Pedal Position Sensor Resistive Element 1 APP2 = Accelerator Pedal Position Sensor Resistive Element 2 ARB = See CARB ARC = Active Roll Control ARHUD = Augmented Reality Head-Up Display (see HUD, LHUD) ARM = Automatic Restraint Module or Adaptive Restraint Module Armature = The rotating coil in a generator or electric motor; crash-reinforcement plate in a bumper ARTS = Adaptive Restraint Technology System ASC = Adaptive Speed Control, Adaptive Speed/Cruise Control Module (ASCM, ACC, ACCM) ASIS = Adaptive Shift Strategy (ZF transmissions) ASCM = Adaptive Speed/Cruise Control Module (ACC, ACCM) ASE = Automotive Service Excellence, National Institute for Automotive Service Excellence ASL = Automatic Speed Limiter ASLS = Automatic Speed Limiter Switch ASM = Air Suspension Module (ASCM, ASU) ASME = American Society of Mechanical Engineers Establishes standards such as the UTS (w.s.) Aspect Ratio = Ratio of height to width, esp. ratio of a tire’s section height divided by its section width ASU = Air Suspension Control Unit (ASCM, ASM) ASME = American Society of Mechanical Engineers, establishes various industrial standards ASIS = Adaptive Shift Strategy (TCM shift strategy adaptation based on driving style) AT, A/T = Automatic transmission ATC = Automatic Transmission Control or Automatic Temperature Control (see DATC) ATC = Automatic Temperature Control Module ( A/C CM, A/C ECU, ATCM, CCM, CC ECU) ATCISO = Automatic Temperature Control ISO bus ATC = After Top Center, After Top Dead Center (ATDC) ATCM = Automatic Temperature Control Module (A/C CM, A/C ECU, ATC, CCM, CC ECU) ATDC = After Top Dead Center, After Top Center (TC) ATF = Automatic Transmission Fluid ATMC = Automotive Training Managers Council ATO Fuse = Standard-size two-blade or spade automotive fuse patented in 1976 by Littelfuse (w.s.) AUDIO = Audio Unit, Audio Control Unit Auto Parts Store = Motor Factor Autobahn = Freeway, Highway, Interstate, Main Road, Motorway, Parkway Autocalf = Grade of Connolly Leather with embossed grain (see Autolux, Vaumol) A/V = Audio Visual or Audio/Video Autolux = Premium grade of Connolly Leather, extra supple with little discernible grain (see Autocalf) AVC = Automatic Volume Control AVOM = Analog Volt/Ohm Meter AWD = All Wheel Drive, all four wheels driven at all times (not to be confused with 4WD) AWS = Anti-Whiplash System B Bank = Ccylinders 2, 4, 6 or 2, 4, 6, 8; Bank 2; LH Bank B+ = Battery Positive Voltage, Vbat B-Pillar = B-Post, narrow structure that connects roof to body behind the front door B-Post = B-Pillar, narrow structure that connects roof to body behind the front door Backlight = Rear windscreen/windshield Badge = Emblem, Medallion; brand, as in Daimler or Vanden Plas Ballast Resistor = A device that limits the amount of current in an electric circuit Bank 1 = A Bank; RH Engine cylinder bank (cylinders 1, 3, 5, 7) Bank 2 = B Bank; LH Engine cylinder bank (cylinders 2, 4, 6, 8) Bar = Unit of pressure; 1 bar = 100,000 Pa or = 14.5 psi BAR = Beyond All Repair (see FUBAR) BARO = Barometric Pressure Sensor BAT = Battery BBC = Before Bottom Center, Before Bottom Dead Center (BBDC) BBDC = Before Bottom Dead Center, Before Bottom Center (BBC) BBL = Barrel, or orifice, as in 1BBL, 2BBL or 4BBL carburetor BBS = Germany-based manufacturer of some OE Jaguar wheels BC = Bottom Center, Bottom Dead Center (BDC) BDC = Bottom Dead Center, Bottom Center (BC) Bellows = Tube suggesting a bellows in form, as seen in air intakes, cruise control actuators, etc. Bezel = A mount, holder or decorative trim for a gauge, lamp, air vent, shifter, switch, door handle, etc. BFH = Big F**king Hammer, a bashing tool used to “persuade” a stuck part BHP = Brake Horsepower, Engine power measured by the resistance of an applied brake Bimetallic Strip = Band of two dissimilar metals bonded together that bends when heated or cooled Bimetallic Switch = A thermal switch based on the movement of a bimetallic strip, such as an BIPM = Bureau International des Poids et Mesures, Int’l Bureau of Weights and Measures (IBWM) Bitumen = Asphalt, sticky black liquid or semi-solid form of petroleum used in insulating materials Bitumen Board = Black weatherproof board with high bitumen content used in Jaguar interiors Bearing = Machine part that constrains relative movement and reduces friction between moving parts BL = British Leyland, (BLMC) result of 1968 merger of British Motor Corp. and Leyland Motor Corp. Black Box = Flight Data Recorder, data recorder built into ECM (first introduced on X-Type) BLMC = British Leyland Motor Corporation, result of 1968 merger of BMC and LMC (w.s.) Bluetooth = International short-range radio standard to replace cables between electronic components BMC = British Motor Corporation; result of 1952 merger of Austin and Morris BMH = British Motor Holdings, result of 1966 merger of Jaguar with British Motor Corp. (w.s.) Bodge = Botch, make a mess of Body Stripe = Coach Line, Pin Stripe Boot = Gaiter, a covering of rubber, plastic, or leather that protects against dust & other contamination Boot = Trunk Bolster = Trim panel or finishing panel (see Knee bolster, Scuttle, Underscuttle) Bonnet = Hood Bolt = An externally-threaded headed fastener used in conjunction with a nut. (see Screw) Bore Wash = Cylinder Wash (w.s.) Botch = Bodge, make a mess of Bottle Cap = Castellated retainer for Jaguar axle castle nuts that resembles a Coke- or beer bottle cap Bottom Dead Center = Position of piston when it is closest to crankshaft Box End Wrench or Box Wrench = Ring Spanner BPM = Body Processor Module, Body Processor Unit (BPU, CPU on XJ40 and earlier cars ) BPMISO = Body Processor Module ISO bus BPP = Brake Pedal Position, Brake Pedal Position Switch or Sensor BPU = Body Processor Unit, Body Processor Module Breaking Capacity = Current at which a fuse melts; Imax, Interrupting Rating, Short-Circuit Rating British Imperial = System of measurement units: Inch, Foot, Yard, Mile, Quart, Gallon, Pound (SAE) British Leyland = (BL), result of 1968 merger of BMC and LMC (w.s.) British Motor Corp. = (BMC), merged with Jaguar in 1966 to form BMH (w.s.) British Motor Holdings = (BMH), result of 1966 merger of Jaguar with BMC (w.s.) British Standard Whitworth = Imperial unit-based thread measurement standard Brooklands = Twin-aeroscreen arrangement on early Jaguar racing cars Browns Lane = Post-WWII Jaguar factory in Allesley, Coventry, England Brush Nylon = Headliner fabric used on Jaguars from 1971 to present BSD = Blind Spot Detection BT = Bluetooth BTC = Before Top Center, Before Top Dead Center (BTDC) BTDC = Before Top Dead Center, Before Top Center (BTC) BTU = British Thermal Unit BTW = “By the way” (OBTW) BSA = Birmingham Small Arms Co., from whom Jaguar acquired Daimler Co. Ltd. in 1960 Bulkhead = Firewall Bump = A forum message intended to move a thread to the front page to keep it active BUS, Communications = A circuit for communication among electronic modules BUS, Ground/Earth/Common = A common circuit to which multiple components connect Bush/Bushing, Metal, Ceramic or Plastic = A plain Bearing with no moving parts Bush/Bushing, Rubber = A vibration isolator, flexible mounting or antivibration mounting Butterfly Valve = Circular plate in the throttle body that controls flow of intake air C = Carbon, Cold, degrees Centigrade/Celsius, Capacitance in Farads C = Coupe or Coupé, as in XJ12C C-Pillar = C-Post, structure that connects roof to body behind the rear door C-Post = C-Pillar, structure that connects roof to body behind the rear door C-Type = Jaguar racing car produced 1951-53, Le Mans winner 1951 & 1953 (also called XK120-C) CAAT = Council of Advanced Automotive Trainers CAD = Computer Aided Design Cadmium = Chemical element Cd, used as a corrosion-resistant coating on Jaguar fasteners & hardware CAF = Current Air Flow CAFE = Corporate Average Fuel Economy standards mandated by the U.S. government Callum, Ian = Jaguar Design Director from 1999, responsible for X350, XK (2006), XF, XJ (2010) Cam Cover = Protective cap on overhead-cam (OHC) engine, see Valve Cover CAN = Controller Area Network, Bosch-designed comm. protocol (see CAN ISO 15765) CAN ISO 15765 = Bosch protocol required on all U.S. cars from 2008 (see CAN, ISO 15765 CAN) Capacitor = Condensor, device that can store electric charge and block DC Car Park = Parking Lot Carb = Carburetor, Carburator, Carburettor, Caburetter CARB = California Air Resources Board, establishes standards that impact automakers worldwide Castle Bromwich = Birmingham, U.K. factory where Jaguar XF, XJ, XK and F-Type are assembled Castle Nut = Nut with castellated notches on top for alignment with a Cotter Pin hole in axle or shaft Castellated Retainer = “Bottle Cap,” retainer for Jaguar axle castle nuts that resembles a beer bottle cap CAT = Catalytic Converter, Catalyst Catalytic Converter = Catalyst (CAT) Catalyst = Catalytic Converter or its active element (e.g. Platinum, Palladium, Rhodium) (CAT) CATS = Computer Active Technology Suspension system CBS = Crankcase Breathing System (EBS) CC = Climate Control or Cruise Control (SC, Speed Control) cc = cubic centimeter, (cm³), 1/1000 Liter/Litre, 1 cc = 1 ml, a unit of volume or displacement CCA = Cold Cranking Amperes CCM = Climate Control Module (A/C CM, A/C ECU, ATC, ATCM, CC ECU) CCM = Carbon-Ceramic Matrix brakes CCMCAN = Climate Control Module CAN communications bus CC ECU = Climate Control Electronic Control Module (A/C CM, A/C ECU, ATC, ATCM CCM) CCRG = Critical Concerns Review Group, JLR committee that investigates potential recalls (see FRG) CCV = Coolant Control Valve (DCCV, DCFV, HCV, HWCV, HV, WV) CCV = Canister Close Valve, EVAP Canister Close Valve CD = Compact Disc, or in reference to a carburetor, constant depression CDC = Compact Disc Changer CDL = Central Door Locking CDMA = Code Division Multiple Access mobile telephony protocol (see GSM) CEI = Constant-Energy Ignition, Lucas ignition system employed on Jaguar V12 engines (LCEI) CEL = Check Engine Light or Lamp (EML, MIL, SEL, SES) Celstran = Celanese brand of LFRT Polypropylene used in many modern Jaguar components CFC = Chlorofluorocarbon, such as R-12 refrigerant (see HFC) cfm or CFM = Cubic Feet Per Minute CGI = Compacted Graphite Iron (used in 2.7L diesel engine block) Channellock Pliers = Water pump pliers, slip-joint pliers, tongue-and-groove pliers Cheers = To wish someone well, thanks, or a formal salutation CHT = Cylinder Head Temperature CID = Cubic Inch Displacement, 1 Liter=61.0237 cubic inches CIP = Cold Inflation Pressure Circlip = Notched circular flat spring-steel retainer to fit in a slot around a shaft, clevis pin, etc. CJB = Central Junction Box CJLR = Chery Jaguar Land Rover Automotive Company Ltd. based in Changshu, China CKP = Crankshaft Position Sensor (CKPS, CPS) (Jaguar adopted the acronym CKPS from X300 on) CKPS = Crankshaft Position Sensor (CKP, CPS) (Prior to X300 Jaguar used the acronym CKP) CL = Closed Loop, ECM controlling fueling in reaction to O2S feedback (see OL) Clevis Pin = Headed metal dowel fastener with a hole for a Cotter Pin or slot for a Circlip on the end Clockspring = Device that carries electrical signals to steering wheel components (e.g.airbag, switches) Closed Loop = ECM controlling fueling in reaction to O2S feedback (CL) (see OL) CM = Control Module cm³ = cubic centimeter (cc), 1/1000 Liter/Litre, 1 cc = 1 ml, a unit of volume or displacement CMM = Column Memory & Mirror Control Module CMP = Camshaft Position Sensor (CMPS) CMP 1 / A = Camshaft Position Sensor 1 / A / RH Bank CMP 2 / B = Camshaft Position Sensor 2 / B / LH Bank CMPS = Camshaft Position Sensor (CMP) CMS = Catalyst Monitor Sensor CO = Carbon Monoxide CO Meter = Carbon Monoxide Meter CO2 = Carbon Dioxide Coach Line = Pin Stripe, Body Stripe Coast = Freewheel Code = Diagnostic Trouble Code or Fault Code Coil-on-Plug = Each spark plug is fitted with its own ignition coil (COP, On-Plug Ignition Coil) Common = Circuit to which multiple components connect, Ground/Earth circuit COMP = Compass Condenser = Front A/C heat exchanger in which gaseous refrigerant condenses to liquid, releasing heat Condensor = Capacitor, device that can store electric charge and block DC Connecting Rod End = Tie Rod End, Track Rod End (steering) Connellize, Connellizing = misspellings of Connollize, Connollizing Connollize, Connollizing = Process of colouring or re-colouring leather, named for Connolly Leather Convertible = Drophead COP = Coil-on-Plug Electronic Ignition (On-Plug Ignition Coil) Core Plug = Freeze Plug Cotter Pin = Split Pin Cotton Bud = Cotton swab, Q-tip Cotton Swab = Cotton Bud, Q-tip Counter-clockwise = anti-clockwise Coupe or Coupé = A passenger car, traditionally with two doors, but we now see “four door coupes” Coventry = England headquarters of Jaguar Cars and now Jaguar Land Rover Cowl = Trim or finisher at base of windshield/rear of hood, steering column finisher, a scuttle CPCM =Cellular Phone Control Module (CPM) CPM = Cellular Phone Module (CPCM) Cps = Cycles-per-second, Hertz 1 cps = 1 Hz CPS = Crankshaft Position Sensor (CKP, CKPS) CPU = Central Processing Unit (BPM on X300 and later ???? ) CPV = Canister Purge Valve, Evaporative Emissions Canister Purge Valve (EECPV) Crank Pulley Damper = Crankshaft Damper, Harmonic Balancer or Damper, Vibration Damper Crankshaft Damper = Crank Pulley Damper, Harmonic Balancer or Damper, Vibration Damper CRLP = Current Run Line Position Crocodile Clip = Alligator Clip Crosshead Screwdriver = Phillips Screwdriver Crossmember = Subframe Crown Wheel = Ring Gear Cruise Control = Speed Control CSA = Canada Standards Association CSI = Cold Start Injector CSTS = Cold Start Thermotime Switch CT = Closed Throttle or Coolant Temperature, Engine Coolant Temperature (ECT) CTA VCT = BorgWarner Cam Torque Actuated Variable Camshaft Timing system CTP = Current Throttle Position or Closed Throttle Position CTS = Coolant Temperature Sensor (ECT) CTS = Charge Temperature Sensor (ACT, IAT, IATS, MAT, MCT, VAT) C-Type = Jaguar racing car produced 1951-53, Le Mans winner 1951 & 1953 (also called XK120-C) Cubby Box = Glove Box or Glove Compartment Curb = Kerb Curb Side = Side nearest the curb for a RHD car, farthest from the curb for a LHD car Current, Electric = Rate of flow of electric charge in a circuit (Ampere, Amp) see Voltage CUV = Crossover Utility Vehicle (see F-Pace) CV Joint = Constant-velocity joint Cycles-per-second = Unit of frequency, (Hertz, Hz), 1 cps = 1 Hz Cyl = Cylinder Cylinder Wash, Washing, Washdown = Loss of compression due to fuel washing oil from the cylinder C-X17 = Crossover Utility Vehicle concept on which the Jaguar F-Pace CUV is based (X761) D = Drive or Daimler D2B = Digital Data Bus Network, telematics network (fiber/fibre optic; optical fiber) D-Jetronic = Bosch EFI system, man. by Lucas for Jaguar V12 engines (superseded by Digital P) D-Pillar = D-Post, structure rearward of C-pillar that connects roof to body, as on an estate car D-Post = D-Pillar, structure rearward of C-pillar that connects roof to body, as on an estate car D-Type = Jaguar racing car produced 1954-57, Le Mans winners 1955, ’56 and ‘57 D-Washer Round washer with a flat-sided center hole that resembles the letter D D/A = Digital-to-Analog DAC = Digital-to-Analog Converter DAMB = Direct-Acting Mechanical Bucket tappets DATC = Dual Automatic Temperature Control, Dual Electronic Automatic Temperature Control DAB = Digital Audio Broadcast Daimler = Daimler Co. Ltd., acquired by Jaguar in 1960 from BSA (not Daimler-Benz or Daimler AG) Daimler Double Six = U.K. badge for 12-cylinder version of XJ40 saloon (XJ12 in the U.S.) Daimler Sovereign = Jaguar compact sporting saloon produced 1966-68, also known as the Jaguar 420 Da Vina = An advanced computer-based OBD diagnostic system Damper = Shock Absorber Damper, Crankshaft = Crank Pulley Damper, Harmonic Balancer or Damper, Vibration Damper Dash = Dashboard, Facia, Facia Panel Dashboard = Dash, Facia, Facia Panel Data Link Connector = The vehicle OBDII connector port (DLC) DATC = Dual Automatic Temperature Control system dB = Decibel: Unit of sound energy (SPL), electrical power ratio, or ratio of two voltages or currents DB = Driveshaft Balancer DBW = Drive-by-wire DC = Direct Current or Duty Cycle DCCV = Dual Coolant Control Valve (CCV, DCFV, DFCV, HCV, HWCV, HV, WV) DCFV = Dual Coolant Flow Valve (DCCV, DFCV, CCV, HCV, HWCV, HV, WV) DD = Daily Driver DDM =Driver Door Module, Driver Door Control Module Dead Battery = Flat Battery Dead Pedal = Stationary rest for driver’s left foot (position may be adjustable) Dealer/Dealership, Jaguar = Jaguar Main Agent DEF = Defrost, Defog Delamination = Separation or splitting of layers of laminated wood in Jaguar steering wheels and panels Denatured alcohol = Methylated spirit Department of Transportation = Ministry of Transport (DOT, MOT) Detonation = Combustion of end-gas after normal combustion (see Pre-ignition, Misfire, Knock) Dewis, Norman, OBE = Chief Jaguar test driver and development engineer from 1952-1985 DEXRON, DEXRON II, DEXRON III =Automatic Transmission Fluid trademark of GM DFCV = Dual-flow Coolant Valve (CCV, DCCV, DCFV, HCV, HWCV, HV, WV) DHC = Drophead or Drop Head Coupe, convertible version of a 2-door coupé (see OTS, Roadster) DHM = Driver’s Head Restraint Module DI = Direction Indicators, Indicators, Turn Signals Diaphragm = Flexible membrane separating two cavities, as in a carburetor or hydraulic accumulator Diaphragm = A flexible disc that vibrates when receiving or producing sound (microphone or speaker) DIC = Digital Instrument Cluster (Jaguar terminology: Virtual Instrument Cluster) Diesel Cycle = Thermodynamic cycle invented by Rudolph Diesel (see Otto Cycle) Diff = Differential (w.s.) Differential = A gear set that transmits driveshaft power to the axles, typically offset by 90-degrees Differential Gear Ratio = The number driveshaft/propshaft rotations for each wheel rotation Digital P = Bosch/Lucas EFI system that replaced D-Jetronic on XJ-S from 1980 DIN = Deutches Institut für Normung, “German Institute for Standardization,” German ISO body DIN Connector = Standardized electrical connector such as the circular format used for audio signals Direction Indicators = Indicators, Turn Signals (DI) Discs = Brake rotors Divided Highway = Dual Carriageway DIY = Do It Yourself DLC = Data Link Connector (the vehicle OBDII connector port) DMM = Digital Multi-Meter, for measuring voltage, resistance, and more (see VOM, DVOM) DMS = Driver Monitoring System, Driver Attention-Monitoring System by Seeing Machines & Intel DMTL = Diagnostic Module - Tank Leakage DMV = Department of Motor Vehicles (U.S. States) DOHC = Dual or Double Overhead Camshaft (see OHC, Twin Cam, Twin OHC) Downstream = Later/following in a circuit/system, as in Downstream O2S (Post Cat) (see Upstream) Door Card = Door Interior Trim Panel Door-Cap = Top trim piece of door card, often incorporating wood veneer and/or leather in Jaguars DOT = Department of Transportation, Ministry of Transport (MOT) Double-Six = 12-cylinder Jaguar XJ saloon DPF = Diesel Particulate Filter DPO = Despised Previous Owner of one’s Jaguar Draught Excluder = Moquette-covered trim for door and sunroof opening edges, Weather Seal/strip DRDM = Driver Rear Door Control Module; Driver Side Rear Door Module Driveshaft = Propshaft, Propeller Shaft DRL = Daytime Running Lights Drophead = Convertible Drophead Coupe = Convertible version of a 2-door coupe or coupé, see Roadster (DHC) DS= Driver’s Side, Near Side (DS, NS), see Passenger Side DSC = Dynamic Stability Control, Electronic Stability Control (ESC), DSC Module (DSCM) DSCM = Dynamic Stability Control Module (DSC, ESC); Driver Seat Control Module (DSM) DSM = Driver’s Seat Control Module or Diagnostic Status Manager (ECM system that triggers DTCs) DSO = Digital Storage Oscilloscope DSP = Digital Signal Processing DTC = Diagnostic Trouble Code (Fault Code, Code) DTMF Tones = Dual Tone Multi-Frequency tones (related to in-car telephony) D-Type = Jaguar racing car produced 1954-57, Le Mans winners 1955, ’56 and ‘57 Dual Carriageway = Divided highway Dumpy Screwdriver = Stubby Screwdriver, short screwdriver DVD = Digital Versatile Disc DVOM = Digital Volt/Ohmmeter Dynamo = Generator (DC), see Alternator Dynamometer = “Dyno,” apparatus for measuring force, torque and power of an engine or powertrain Dyno = Dynamometer, apparatus for measuring force, torque and power of an engine or powertrain E = Electric Field E2PROM = Electrically Eraseable Programmable Read-Only Memory (see EEPROM) E-Type = Jaguar range of sports cars produced from 1961 to 1975, E-Type in the U.K., XK-E in the U.S. EAD = Jaguar Electronic Active Differential (GKN Driveline’s ETM, w.s.)) (ADC) EAV = Extra Air Valve Earth = Ground (see Common) Earth Bus = Ground Bus, circuit to which multiple components are Earthed/grounded EBA = Emergency Brake Assist EBD = Electronic Brake force Distribution system EBS = Engine Breathing System (CBS) ECAS = Wabco Electronically Controlled Air Suspension on which Jaguar ECATS is based ECATS = Jaguar Enhanced Computer Active Technology Suspension system (based on Wabco ECAS) ECM = Engine Control Module (ECU, PCM) ECMSCP =Engine Control Module Speed Control Processor Econoseal = Electrical connectors by Tyco Int’l used in many Jaguars (now TE Connectivity) ECT = Engine Coolant Temperature, Engine Coolant Temperature Sensor (CT, CTS, ECTS) ECTS = Engine Coolant Temperature Sensor (CT, CTS, ECT) ECU = Electronic Control Unit, any of several control modules (ABS, CCM, ECM, TCM, etc.) ECU = Engine Control Unit (ECM, PCM) EDIS = Ford Electronic Distributorless Ignition System, often retrofitted to classic Jaguars EECPV = Evaporative Emissions Canister Purge Valve (CPV) EEPROM = Electrically Eraseable Programmable Read-Only Memory (E2PROM) EFI = Electronic Fuel Injection (see FI) EFT = Engine Fuel Temperature, Engine Fuel Temperature Sensor (EFTS, FT, FTS) EFTS = Engine Fuel Temperature Sensor (EFT, FTS) e.g. = exempli gratia (Latin); for example, for the sake of example, such as EGR = Exhaust Gas Recirculation, EGR Valve EGR Valve = Exhaust Gas Recirculation Valve (EGRV) EGRC = Exhaust Gas Recirculation Cooler EGRT = Exhaust Gas Temperature Sensor (EGRTS, EGT, EGTS) EGRTS = Exhaust Gas Temperature Sensor (EGRT, EGT, EGTS) EGRV = Exhaust Gas Recirculation Valve (EGR Valve) EGT = Exhaust Gas Temperature Sensor (EGRT, EGRTS, EGTS) EGTS = Exhaust Gas Temperature Sensor (EGRT, EGRTS, EGT) Electrochromic = Jaguar rear view mirrors by Gentex that dim electronically (see Photochromic) Electromotive Force = Potential difference between terminals of a source of electrical energy ELM = An OBD scanning device made by ELM Electronics ELM327 = OBDII interpreter, Bluetooth scanning device that pairs with the Torque Pro Android app ELM329 = CAN-only interpreter by ELM Electronics EM = Engine Management Emblem = Badge, Medallion EMC = Electro-Magnetic Interference Control Emergency Brake = Hand Brake, Handbrake, Parking Brake EMI = Electromagnetic Interference caused by EMR (see RFI) EML = Engine Management Lamp or Light (CEL, MIL, SEL, SES) EMR = Electromagnetic radiation: e.g. radio waves, visible light, etc. (see EMI, RFI, IR, UV) EMS = Engine Management System Engine Speed = Rotational speed of engine in rpm, as opposed to Vehicle Road Speed England, Raymond “Lofty” = ‘50s Jaguar Racing Chief, Jaguar Chairman & Chief Executive 1971-74 Enleanment = The AFR becoming leaner due to ECM action or another cause (e.g. air leak) Enrichment = The AFR becoming richer due to ECM action or another cause (e.g. clogged air filter) Entrance Ramp = On Ramp, Slip Road entering a motorway EOBD = European On Board Diagnostics, equivalent to OBDII, mandatory on petrol cars from 2001 EOBD2 = Marketing-speak for enhanced features beyond OBDII or EOBD requirements EOC = Engine Overspeed Control, ECM cancellation of fuel injection to prevent engine overspeed EOP = Engine Oil Pressure or Engine Oil Pressure Sensor EOT = Engine Oil Temperature or Engine Oil Temperature Sensor (EOTS, OT, OTS) EOTS = Engine Oil Temperature Sensor (EOT, OT, OTS) EPA = Environmental Protection Agency (U.S.) EPAS = Electric Power Assisted Steering EPB = Electric/Electronic Park/Parking Brake (appears in all permutations in Jaguar literature) EPB Module = Electric/Electronic Park/Parking Brake Module (PBM) EPC = Jaguar Electronic Parts Catalog EPROM = Eraseable Programmable Read-Only Memory (see EEPROM) ESC = Electronic Stability Control, Dynamic Stability Control (DSC) Escutcheon = An ornamental plate or trim ring around a keyhole, door handle, switch, etc. ESD = Electrostatic Discharge ESP = Electronic Stability Program, Bosch technology used in some Jaguars Estate Car = Shooting-brake, Station Wagon ETM = Engineering Test Mode ETM = GKN Driveline’s Electronic Torque Manager differential, Jaguar’s EAD and basis of ADC E-Type = Jaguar range of sports cars produced from 1961 to 1975, E-Type in the U.K., XK-E in the U.S. EU = European Union EVAP = Evaporative Emissions, EVAP Management System (Fuel Vapor/Vapour Management) EVAP =Canister Evaporative Emissions Carbon/Charcoal Canister EVAP =Canister Close Valve Evaporative Emission Canister Close Valve EVAP = Canister Purge Valve Evaporative Emission Canister Purge Valve EVAPP = Evaporative Emission Control Purge Valve Evaporator = A/C heat exchanger inside vehicle in which liquid refrigerant boils to gas, absorbing heat EWP = Electric Water Pump Exit Ramp = Off Ramp, Slip Road leaving a motorway Expansion Tank = Header tank (coolant) EXT = External (as in external air temperature) Eyelet Terminal = Ring Terminal F = Force; degrees Fahrenheit Facelift = Superficial changes to a current model (see also Redesign) Facia = Facia Panel, Dash Panel, Dashboard Facia Panel = Facia, Dash Panel, Dashboard Fault Code = Diagnostic Trouble Code or “Code” FAQ = Frequently Asked Questions FCC = Federal Communications Commission (U.S.) FEA = Finite Element Analysis, computer study of how a material or design will perform under stress FEAD = Front End Accessory Drive belt Fender = Wing Fender Skirts = Spats FEM = Front Electronic Module, Front Electronic Control Module FETM = Front Entertainment Control Module, Front Seat Entertainment Control Module FFH = Fuel Fired Heater FHC = Fixed-head coupe, hardtop 2-door coupe with non-removable roof FI = Fuel Injector or Fuel Injection, petrol injection (PI), see EFI, MFI Fibremod = LGF polypropylene plastic used in F-Type IP and airbag chute (see Borealis & Borouge) Final Drive = Mechanism that changes power transmission direction 90 degrees (Pinion & Ring Gear) Final Drive Ratio = Number of engine rotations for each wheel rotation in a given transmission gear Firewall = Bulkhead FIS = Fuel Injection Strategy FIPC = Fuel Injection Primary Control FISC = Fuel Injection Secondary Control Fixed-Head Coupe = Hardtop 2-door coupe (FHC) Flashlight = Torch Flat Battery = Dead Battery Fleece = Lambswool, as used in OE and aftermarket Jaguar rugs or overmats Flex Disc = (Flexible Coupling, Flex Joint, Giubo, Jurid) as incorporated in many Jaguar driveshafts/propshafts Flex Joint = (Flexible Coupling, Flex Disc, Giubo, Jurid) as incorporated in many Jaguar driveshafts/propshafts Flex Plate = Connects engine output to torque converter input on car with auto trans (see Flywheel) Flexible Coupling = Flex Disc, Flex Joint, Giubo or Jurid as incorporated in many Jaguar driveshafts/propshafts Flight Data Recorder = Black Box, data recorder built into ECM (first introduced on X-Type) FLS = Fuel Level Sensor Flyover = Overpass Flywheel = Connects engine output to clutch on car with manual transmission (see Flex Plate) FMEM = Failure Mode Effect Management (TCM maintains maximum function in the event of a fault) FMFR = Fuel Mass Flow Rate, Adaptive Fuel Mass Flow Rate FMVSS = Federal Motor Vehicle Safety Standards (U.S.) FOB = The security and locking remote control portion of an automotive key Foot-Pounds = Unit of torque (ft.lbs., ft·lb, lb.ft., lb·ft, Pound-Feet, Nm, N·m, Newton-metre) Ford = Ford Motor Company, owner of Jaguar Motorcars 1989-2008, OEM of many Jaguar parts F-Pace = Jaguar’s upcoming Crossover Utility Vehicle (CUV) FP = Fuel Pump FPaid = Front Parking Aid FPCV = Fuel Pressure Control Valve FPDB = Front Power Distribution Box, Front Power Distribution Fuse Box FPR = Fuel Pressure Regulator or Fuel Pump Relay FPS = Fuel Pressure Sensor Freeway = Autobahn, Highway, Interstate, Main Road, Motorway, Parkway Freewheel = Coast Freeze Plug = Core Plug Freon = Registered trademark of DuPont applied to R-12 refrigerant used in older A/C systems FRG = Field Review Group, JLR internal committee that reviews potential recalls per CCRG (w.s.) FRP = Fuel Rail Pressure or Fuel Rail Pressure Sensor FSU = Fuel Supply Unit FTP = Fuel Tank Pressure Sensor FT = Fuel Trim, Fuel Temperature ft. lb. or ft·lb = Foot-pounds, unit of torque (lb.ft., lb·ft., Pound-Feet, Nm, N·m, Newton-metre) FTLT= Fuel Trim Long Term FTS = Fuel Temperature Sensor (EFT, EFTS) FTST = Fuel Trim Short Term (STFT, SHRTFT) F-Type = Jaguar sports car range produced from 2013 FUBAR = F**ked Up Beyond All Repair (see BAR) Fuel Wash = Cylinder Wash Furflex = Moquette-covered rubber piping or U-channel clip-on edge trim or “draught excluder” Fuse = Current-sensitive device that melts under current overload to protect other circuit components FVCV = Fuel Volume Control Valve FWD = Front Wheel Drive (see RWD) g/sec = Grams-per-second, unit of airflow measured by the MAFS Gaiter = Boot, a covering of rubber, plastic, or leather that protects against dust & other contamination gal or GAL = Gallon(s) Gallon, Imperial or British Imperial = 4.546 Liters = 1.2 U.S. Liquid Gallon Gallon, U.S. Liquid Gallon = 3.79 Litres = 0.8337 Imperial Gallon Gas = Gasoline, Petrol; any gaseous substance Gasket = Rubber, plastic, metal, leather or cloth seal for mating surfaces between two or more parts Gasoline = Fuel, Petrol Garage = Shop, Repair Shop Gaydon = Jaguar Land Rover Gaydon Centre, principal engineering headquarters GDO = Garage Door Opener Gearbox = Transmission, Trans, Trannie, Box Gedore = Germany-based OEM of adjustable wrenches in Jaguar tool kits Gel Cell = Type of VRLA battery in which silica dust is added to the electrolyte to form a paste GEM = Generic Electronic Module, Bosch ECU for ZF Servotronic electronic steering racks Generator = Alternator (AC) or Dynamo (DC) Girling, Albert H. = Inventor of SS & Jaguar drum and disc brake systems manufactured by Lucas Giubo = Flex Disc, Flexible Coupling, Flex Joint, Jurid, contraction of the Italian "giunti Boschi," or "Boschi joint," for inventor Antonio Boschi, often misspelled Guibo Global Opening/Closing = Opening/closing all doors, windows, sunroof/moonroof with key or remote Glove Box = Glove Compartment or Cubby Box Glove Compartment = Glove Box or Cubby Box GND = Ground, Earth GOR = Grille Opening Reinforcement GPC = Glow Plug Control GPC = Glow Plug Control Module GPL = Glow Plug Lampe GPS = Global Positioning System (Sat Nav) (see NAV, NCM) Grommet = Ring or eyelet, often a rubber ring that protects wires passing through a hole in a metal part Ground Bus = Earth Bus, circuit to which multiple components are grounded/Earthed Ground = Earth (see Common) Grub screw = Allen screw, Set screw GSM = Group Spécial Mobile/Global System for Mobile Communications mobile telephony standard GT = Grand Touring car, a 2-door in the coupe/convertible style designed for comfort and high speed GTR = Global Technical Resource, Jaguar onine resource for dealers and technicians, now TOPix Gudgeon Pin = Wrist Pin, piston-to-connecting rod pin Guibo = Misspelling of Giubo GVW = Gross Vehicle Weight GWM = Gateway Module GYRO = Gyroscope, Gyroscopic Sensor H = Hot Half-axle = Half-shaft, Sideshaft, connects differential, transaxle or transfer case/box to wheel Half-shaft = Half-axle, Sideshaft, connects differential, transaxle or transfer case/box to wheel Hall Effect = Voltage generated in a conductor carrying an electric current when near a magnetic field Hall Effect Sensor = A sensor that uses the Hall Effect to provide a variable electric signal Hand Brake = Handbrake, Emergency Brake, Parking Brake Hardura = Jute felt-backed grain-embossed PVC vinyl-faced material used for Jaguar interior parts Harmonic Balancer = Crankshaft Damper, Crank Pulley Damper, Harm. Damper, Vibration Damper Harmonic Damper = Crankshaft Damper, Crank Pulley Damper, Harm. Balancer, Vibration Damper Harness = Loom Wiring Harness Harrison = Brand of A/C compressors used in some Jaguars (frmly. Div of AC Delco, now Delphi) Hassan, Walter “Wally” = Ex-Bentley engineer who helped design the Jaguar Twin-OHC XK engine HC = Hydrocarbons HCM = High Speed CAN Network Module HCV = Heater Control Valve (DCCV, DCFV, CCV, HWCV, HV, WV) HD = Heavy Duty Header = Exhaust manifold Header Tank = Expansion tank (coolant) Heat Exchanger Transfers heat from one fluid to another: radiator, oil cooler, intercooler, condenser HE = Hall Effect or High Efficiency HEGO = Heated Exhaust Gas Oxygen sensor (O2S, HO2, HO2S, Lambda Sensor, UHEGO) HEI = High-Energy Ignition Hertz = Unit of frequency, cycles-per-second, (Hz), 1 Hz = 1 cps HES = Hall Effect Sensor Heynes, William “Bill” = Principal designer of the Jaguar Twin-OHC XK engine, with Wally Hassan HFC = Hydrofluorocarbon, such as R-134a refrigerant (see CFC) HFO-1234yf = New EPA-approved DuPont/Honeywell refrigerant that may replace R-134a (1234yf) HFS = Heated Front Screen (see HRS) Hg = Mercury (see inHg) HID = High Intensity Discharge, High Intensity Discharge Headlamp Hide = Leather used in Jaguar interiors (see Autolux, Autocalf) High Tension Leads = Spark Plug Cables or Wires Highway = Autobahn, Freeway, Interstate, Main Road, Motorway, Parkway HLM = Headlamp Leveling Module HMI = Human Machine Interface HMSL = High Mounted Stop Lamp HO2 = Heated Oxygen Sensor (HEGO, HO2S, O2, O2S, Lambda Sensor, UHEGO) HO2S = Heated Oxygen Sensor (HEGO, HO2, O2, O2S, Lambda Sensor, UHEGO) HO2 Sensor 1 / 1 = Heated Oxygen Sensor – RH Bank or Bank 1 / Upstream HO2 Sensor 1 / 2 = Heated Oxygen Sensor – RH Bank or Bank 1 / Downstream HO2 Sensor 2 / 1 = Heated Oxygen Sensor – LH Bank or Bank 2 / Upstream HO2 Sensor 2 / 2 = Heated Oxygen Sensor – LH Bank or Bank 2 / Downstream Hood = Bonnet, or convertible top HP = Horsepower, a measure of power. 1 HP = 550 foot-pounds per second, or 745.7 watts HRS = Heated Rear Screen (see HFS) HS = High Speed HSMO = Hydraulic System Mineral Oil HSW = Heated Steering Wheel HT or H.T. = High Tension HT Leads = Spark Plug Cables or Wires HU = Head Unit, Audio/Video System Head Unit Hubcap = Nave Plate HUD = Head-Up or Heads-Up Display (see ARHUD, LHUD) HVAC = Heating Ventilation and Air Conditioning HWCV = Heater Water Control Valve (DCCV, DCFV, CCV, HV, WV) HWP = Heated Wiper Park HYCYOSTY = “Have you changed your original secondary tensioners yet?” (X308 necessity) Hz = Hertz, unit of frequency, cycles-per-second, 1 Hz = 1 cps I = Symbol for Current in electronics equations I6 = Inline six-cylinder engine, Straight Six engine IA = Intake Air IAC = Idle Air Control or Idle Air Control Valve (IACV), see also ISC, ISCM, ISSM IACV = Idle Air Control Valve (IAC), see also ISC, ISCM, ISSM IAT = Intake Air Temperature, Intake Air Temperature Sensor (IATS, ACT, CTS, MAT, MCT, VAT) IATS = Intake Air Temperature Sensor (IAT, ACT, CTS, MAT, MCT, VAT) IBWM = Int’l Bureau of Weights and Measures, Bureau International des Poids et Mesures (BIPM) IC = Instrument Cluster (INST, IP, IPK, ICCM), Internal Combustion, Industry/Industrie Canada, integrated circuit ICCM = Instrument Control Center Module (IC, INST, IP, IPK) ICE = In-Car Entertainment System ICM = Ignition Control Module (ICU) ICU = Ignition Control Unit (ICM) ID or I.D. = Identification, or Inside Diameter (see OD) Idle = Tick Over, or the engine speed at idle IDM = Injector Driver Module IDS = Integrated Diagnostic System, Ford/JLR computer-based diagnostics (See PDU, SDD, WDS) i.e. = id est (Latin): that is, that is to say IFS = Independent Front Suspension IG = Ignition IGN = Ignition IIABDFI = “If It Ain’t Broken Don’t Fix It” (IIIBDFI) IIRC = “If I recall correctly” IIIBDFI = “If It Isn’t Broken Don’t Fix It” (IIABDFI) ILSAC = Int’l Lubricant Standardization & Approval Committee, motor oil standards, see ACEA, API Imax = Current at which a fuse melts; Breaking Capacity, Interrupting Rating, Short-Circuit Rating Impeller = Bladed rotor for transmitting motion to a fluid, as in a water pump, torque converter, etc. Imperial = British Imperial measurement units: Inch, Foot, Yard, Mile, Quart, Gallon, Pound (SAE) IMT = Intake Manifold Tuning Valve (see VIS) IMT = Valve Intake Manifold Tuning Valve; Valve 1 = Top, Valve 2 = Bottom IMHO = In my humble opinion IMO = In my opinion IMT = Intake Manifold Tuning Valve, LH or RH (LHIMT, RHIMT) In Good Nick = In good condition Indicators = Direction Indicators, Turn Signals, Signals (DI) inHg = Inches of Mercury, unit of pressure, measure of engine manifold vacuum, 1 inHg = 3386.389 Pa Inline Six = Straight Six engine (I6) INST = Instrument Cluster, Instrument Pack (IC, IP, IPK, ICCM) Interactive Voice = Jaguar voice-recognition control system Interstate = Autobahn, Freeway, Highway, Main Road, Motorway, Parkway Interrupting Rating = Current at which a fuse melts; Imax, Breaking Capacity, Short-Circuit Rating Int’l = International I/O = Input/Output IP = Injection Pressure, Injector Pressure Sensor, Fuel Injection Pressure Sensor IP or I/P = Instrument Pack or Panel (IC, ICCM, INST, IPK) IPC = Ignition Primary Control (see ISC) IPD = Injector Pulse Duration (On Time, Pulsewidth, Pulse Width) IPDA = Definition not yet known, probably diesel-related; from p. 208 of X350 Owner’s manual IPR = Ignition Positive Relay IPS = Injection Pressure Sensor, Fuel Injection Pressure Sensor IPK = Instrument Pack (IC, ICCM, INST, IP) IR = Infrared, radiant energy/EMR with wavelengths longer than visible light (see EMR, UV) IRS = Independent Rear Suspension, Jaguar’s, designed by Bob Knight, is one of the world’s best IS = Inertia Switch, Intrusion Sensor or Intrusion Sensor Module (ISM) ISC = Idle Speed Control (see also IAC, IACV, ISCM, ISSM) ISC = Ignition Secondary Control (see IPC) ISCM = Idle Speed Control Motor (ISSM), see also ISC, IAC, IACV ISM = Intrusion Sensor Module (IS) ISR = Idle Speed Reference ISSM = Idle Speed Stepper Motor (ISCM), see also IAC, IACV, ISC, ISCM) ISO = International Standards Organization, establishes various industrial standards ISO = Serial Data Link Network (ISO 9141) ISO Relay = Relay conforming to ISO automotive relay standards (ISO, Mini ISO & Micro ISO sizes) ISO 9001 = Fundamental quality management systems & standards for automotive makers & suppliers ISOFIX = Child safety seat restraint system ISO 15765 CAN = Bosch protocol required on all U.S. cars from 2008 (see CAN, CAN ISO 15765) ISO/TS 16949 = Quality assurance standard for OEM parts suppliers that superseded QS9000 ISO 9141 = Serial Data Link Network ISU = International System of Units (SI) ITA = Ignition Timing Advance (measured in degrees) IVT = In-Vehicle Temperature, In-Vehicle Temperature Sensor (see IVTH, IVTS, IVTHS) IVTH = In-Vehicle Temperature and Humidity, In-Vehicle Temperature and Humidity Sensor IVTHS = In-Vehicle Temperature and Humidity Sensor (IVT, IVTH, IVTS) IVTS = In-Vehicle Temperature Sensor (see IVT, IVTH, IVTHS) JADE = Jaguar Alive Driving Experience JAG = Jaguar Association Germany JagNet = Vehicle Emergency Messaging System (VEMS) JaguarSport = Joint venture between Jaguar and TWR to create the XJ40 XJR models JaguarVoice = Voice Activated Control system, see VAC, VACM JCCT = Jaguar Car Club of Tasmania JCNA = Jaguar Clubs of North America JDC = JaguarDrive Control, Jaguar Driver’s Club JDCA = Jaguar Driver’s Club of Australia JDCSA = Jaguar Driver’s Club of South Australia JDHT = Jaguar Daimler Heritage Trust JDS = Jaguar Diagnostic System JGM = J-Gate Module, gear selector module JDS = JaguarDrive Selector JIL = Jaguar Innovation Lab, fictional laboratory featured in Jaguar television commercials j/k = Just kidding JLR = Jaguar Land Rover JLRA = Jaguar Land Rover Australia JOBD = Japan On Board Diagnostics, a version of OBDII for vehicles sold in Japan JOC = Jaguar Owners Club JPCS = Jaguar Pedestrian Contact Sensing JPDA = Jaguar Performance Driving Academy JSS = Jaguar Sequential Shift JTB = Jaguar Technical Bulletin (TSB) JTIS = Jaguar Technician Information System, computer-based Workshop Service Manuals JTRS = Jaguar Tyre Repair System Jubilee Clamp or Clip = Worm-drive hose clamp, generic term derived from U.K.-based Jag OEM Jubilee Jump = Jump Start, Boost Jump Leads = Jumper Cables, Booster Cables Jump Start = Boost, to supplement a dead/flat battery by connecting to the battery of another vehicle Jumper Cables = Jump Leads, Booster Cables Jurid = Flexible Coupling, Flex Disc, Flex Joint, Giubo; named for the early manufacturer Jurid Werke (w.s.) K = degrees Kelvin KAM = Keep Alive Memory KC = Knock Control KD = Kick Down or Kickdown KDS = Kick Down or Kickdown Switch Kerb = Curb Kerosene = Paraffin KERS = Kinetic Energy Regeneration System Key, Woodruff = Half-moon shaped tab that aligns and connects a gear or pulley to a drive shaft Kg = Kilogram, unit of mass commonly also used as unit of weight, 1000 grams, 1 kg = 2.2 pounds kHz = kilo-Hertz, one-thousand Hertz, one-thousand cycles per second Kickdown = Wide Open Throttle accompanied by a gear downshift for overtaking/passing Kickdown Switch = Usually associated with Accelerator Pedal mechanism, initiates Kickdown Kilogram = kg, unit of mass commonly also used as unit of weight, 1000 grams, 1 kg = 2.2 pounds KISS = Keep It Simple, Stupid km/h = Kilometers Per Hour (see mph) kmpl = Kilometers Per Litre, a measure of fuel economy (see mpg, l/100km) Knight, Robert “Bob” = Master Jaguar chassis engineer, designer of the renowned Jaguar IRS Knock = Audible indication of Misfire, Detonation or Pre-ignition Knockoffs, Octagonal “Safety” = Wheel hub nuts fitted to wire-wheeled Jaguars from 1968 Knockoffs, “Two-earred or winged” = Rudge-Whitworth hub nuts fitted to wire-wheeled Jags to 1968 Knuckle = Suspension component that locates front stub axle or rear hub (see Steering Knuckle) KOEO = Key On, Engine Off kPa = Kilopascal(s), 1 kPa = 1000 Pascals KS = Knock Sensor or Knock Sensing; KS 1 = RH Bank or Bank 1; KS 2 = LH Bank or Bank 2 KTM = Key Transponder Module kV = Kilovolt(s), 1 kV = 1000 Volts KWP = Keyword Protocol (a form of OBD) L = Liter or Litre, unit of volume or displacement, 1 L = 1.05669 qt. or 61.0237 cubic inches L = Long Wheel Base as in XJ8L (LWB) L/100km = Litres Per 100 Kilometers, a measure of fuel economy (see mpg, kmpl) Lag = Delay in response to an input, such as Fuel Injector Lag Lambda (λ) = Air-Fuel Equivalence Ratio = AFR/Stoichiometric AFR (for gasoline/petrol 1λ = 14.7:1) Lambda Sensor = Oxygen Sensor (O2, O2S, HO2, HO2S) Lambswool = Fleece, as used in OE and aftermarket Jaguar rugs or overmats Lawson, Geoff = Jaguar Design Director 1989-1999 (XJ220, X300, XK8, S-Type, X-Type) lb. = Pound, unit of weight, 1 pound = 0.453592 kilogram lb. ft. or lb·ft = Pound-Feet, unit of torque (ft. lb., ft·lb, Foot-Pounds, Nm, N·m, Newton-metre) LCD = Liquid Crystal Display LCEI = Lucas Constant-Energy Ignition, ignition system employed on Jaguar V12 engines (LCEI) LCM = Level Control Module (ADHLS), Lamp Control Module or Lighting Control Module Lead Substitute = Added to unleaded fuel to reduce valve seat wear in engines designed for leaded fuel Lean = AFR with too much air and/or too little fuel, Lambda (λ) > 1 (see Rich) Leaper = The Jaguar leaping cat trademark, especially in hood/bonnet ornament form LED = Light-Emitting Diode Leyland Motor Corp. = LMC, merged with BMH in 1968 to form British Leyland (w.s.) LFRT = Long-Fiber Reinforced Thermoplastic, used in many Jaguar parts (Celstran) LGF = Long Glass Fiber (used to reinforce plastics, see Fibremod, Borealis and Borouge) LH = Left Hand, Left Hand Side, typically referenced from the driver’s seat facing forward LHD = Left Hand Drive LHIMT = Left-Hand Intake Manifold Tuning Valve, (see IMT, RHIMT) LHLCM = Left Hand Level Control Module (ADHLS L) LHM = Limp Home Mode, permits driving while reducing risk of engine or transmission damage (RP) LHUD = Laser Head-Up Display (see ARHUD, HUD) LHS = Left Hand Side, typically referenced from the driver’s seat facing forward License Plate = Number Plate Limp Home Mode = Restricted performance, impaired transmission function due to a fault (LHM, RP) Limp Mode = Limp Home Mode Liter / Litre = L or l, unit of volume, 1 L = 1.05669 qt. LKA = Lane-Keeping Assistance (see ADAS, Mobileye, Gentex) LKAS = Lane-Keeping Assistance and Support (see ADAS, Mobileye, Gentex) Lock Washer = Spring Washer, Helical Spring Lock Washer LONGFT = Long Term Fuel Trim (FTLT, LTFT) Loom = Wiring Harness, Harness Lorry = Truck LPG = Liquefied Petroleum Gas or Liquid Petroleum Gas LSD = Limited-Slip Differential LTAI = Long Term Adaptive Idle (see also STAI) LTFT = Long Term Fuel Trim (FTLT, LONGFT) LTI = Long Term Idle adaptation (see STI) Lug Nut = Wheel Nut LUMP = “Less Upkeep More Power,” slogan of Chevy engine conversion advocates Luxan = Dye-enhanced-grain grade of Connolly Vaumol leather (see Autolux, Autocalf) LW = Long Waveband (see MW) LWB = Long Wheel Base, indicated by “L” in model name, such as XJ6L (see SWB, WB) Lyons, Sir William = “Mr. Jaguar,” co-founder of Jaguar Cars with William Walmsley M = Meter/Metre M = Mass; U.S. terminology of SE version of XK120 M = Position Memory set button (for seats, steering wheel, pedals, exterior mirrors, etc.) MACS = Mobile Air Conditioning Society MAF = Mass Air Flow Sensor (AFM, AMS, MAFS, MAS) MAFS = Mass Air Flow Sensor (AFM, AMS, MAF, MAS) mA·h or mAh = milliamp-hour, 1/1000 of an ampere-hour, unit of battery power/discharge interval Main Agent, Jaguar = Jaguar Dealer/Dealership Main Road = Autobahn, Freeway, Highway, Interstate, Motorway, Parkway MAP = Manifold Absolute Pressure Sensor or Motorist Assurance Program (AMRE) Mark 1 = Jaguar 2.4L and 3.4L saloons produced 1955-59 (known as Mark 1 after Mark 2 introduced) Mark 2 = MK 2, Jaguar medium-sized saloon produced 1959-67 Mark V = Pronounced “Mark Five,” large Jaguar luxury saloon produced 1948-51 Mark VII = Pronounced “Mark Seven,” large Jaguar saloon produced 1951-56, successor to Mark V Mark VIII = Pronounced “Mark Eight,” large Jaguar saloon produced 1956-58, successor to Mark VIII Mark IX = Pronounced “Mark Nine,” large Jaguar saloon produced 1959-61, successor to Mark IX Mark X = “Mark Ten,” full-size Jaguar saloon produced 1961-70, renamed 420G in 1966 MAS = Mass Airflow Sensor (AFM, AMS, MAF, MAFS) Mass = Amount of matter in a body, does not vary with altitude but commonly equated with Weight MAT = Manifold Air Temperature Sensor (ACT, CTS, IAT, IATS, MCT, VAT) MAX = Maximum May Fireball Engine = Michael May designed High-compression stratified charge V12 HE head (AIR) May, Michael = Designer of Jaguar V12 HE high-compression stratified charge cylinder head (AIR) MCCM = Message Control Center Module MCP = Multimedia Control Panel MCT = Manifold Charge Temperature Sensor (ACT, CTS, IAT, IATS, MAT, VAT) Mechatronics = Field combining mechanical, electrical, telecomm, control & computer engineering Medallion = Bade, Emblem Mega Fuse = Fuse with a very high Imax MegaSquirt = Customizable aftermarket EFI control system by Bruce Bowling and Al Grippo MEM = Memory, as in stored radio station, seat position, etc. Metalastik = Trademarked rubber/metal bonded anti-vibration isolation bushes by Trelleborg AB Meter, Metre = m, Unit of length, 1 m = 39.3701 inches or 1.09361 yards Methylated spirit = Denatured Alcohol Metre, Meter = m, Unit of length, 1 m = 39.3701 inches or 1.09361 yards MFI = Mechanical Fuel Injection MIL = Malfunction Indicator Lamp (CEL, EML, SEL, SES) Milometer or Mileometer = Odometer (ODO) MIN = Minimum Mini-lite = U.K.-based maker of alloy wheels retro-fitted to classic racing Jaguars Ministry of Transport = Department of Transportation (MOT, DOT Misfire = Combustion failure in a cylinder due to malfunction with fuel, spark, timing, etc. Mistry, Cyrus P. = Current Chairman of the Tata Group, including Tata Motors/JLR MK 2 = Mark 2, Jaguar medium-sized saloon produced 1959-67 Ml = milliliter/milliliter, 1/1000 Liter/Litre, 1 ml = 1 cc, a unit of volume or displacement ML/kM =Mile/kilometer selector for instrument panel display units mm = millimeters Mohair = Angora goat fleece textile used in classic Jaguar convertible tops & tonneaus (Wigan cloth) Mole Grips Pliers = Vise Grips Pliers MON = Motor Octane Number, a fuel performance rating system; see RON, (R+M/2), AKI Mongoose = OBDII-to-USB serial communications gateway adapter cable for use with JLR SDD Monocoque = Unibody Moonroof = Roof window with a glass panel that may or may not open to the air (see Sunroof) Moquette = Short-nap woolcloth with velour-like surface used in Jag interiors and on draught excluders MOT = Ministry of Transport, Department of Transportation (MOT, DOT) Moto-Lita = U.K.-based maker of classic wood-rim OE and aftermarket Jaguar steering wheels Motor Factor = Auto Parts Store Motorway = Autobahn, Freeway, Highway, Interstate, Main Road, Parkway Montreal Protocol = Int’l treaty on ozone protection effective 1989 that prompted R-12 phase-out mpg = Miles Per Gallon, a measure of fuel economy (see kmpl, l/100km) mph = Miles Per Hour (see km/h) MPS = Manifold Pressure Sensor MSDT = Material Safety Data Sheet MT or M/T = Manual Transmission MTBE= Methyl Tertiary Butyl Ether, an oxygenate used to enhance unleaded fuel octane rating ms = Millisecond, 1 ms = 1/1000 second Muffler = Silencer mV = millivolt(s), 1 mV = 1/1000 volt MW = Medium Waveband (see LW) MY = Model Year N = Neutral or Nitrogen NA or N/A =Normally (or Naturally) Aspirated (as opposed to Supercharged or SC), or Not-Applicable NATEF = National Automotive Technician’s Education Foundation NAV = Navigation System, Navigation Control Module (NCM, GPS) Nave Plate = Hubcap NAS = North American Specification NC or N.C. = Normally Closed (see NO) NCM = Navigation Control Module (NAV) Near Side = Driver’s Side (NS, N/S, DS), see Off Side New Old Stock = Unused older manufacture as opposed to modern reproduction (NOS) Newton Metre = Unit of torque (ft.lbs., ft·lb, lb.ft., lb·ft, Foot-Pounds, Pound-Feet, Nm, N·m) NHTSA = National Highway Travel Safety Administration (U.S.) NIASE = National Institute for Automotive Service Excellence, commonly known by ASE Nick, In Good Nick = In good condition Nikasil = Electrodeposited lipophilic nickel matrix silicon carbide; problematic cylinder coating NLA = No Longer Available (seen in Jaguar parts listings) Nm or N·m = Newton-metre Unit of torque (ft.lbs., ft·lb, lb.ft., lb·ft, Foot-Pounds, Pound-Feet) NO or N.O. = Normally Open (see NC) NOS = New Old Stock, unused older manufacture as opposed to modern reproduction NOX or NOx = Oxides of Nitrogen, collectively Nitrogen Monoxide (NO) & Nitrogen Dioxide (NO2) NS or N/S = Near Side NSD = Neutral Sense Diode NTC = Negative Temperature Coefficient Number Plate = License Plate Nut = An internally-threaded fastener, typically with a hex-shaped perimeter, used with a bolt or stud. NVH = Noise, Vibration and Harshness Nyloc Nut = Nut with a deforming Nylon insert that resists loosening due to vibration or shaft rotation Nylock = Misspelling of Nyloc Nylon = DuPont trademark for family of aliphatic polyamide thermoplastics first produced in 1935 Nylon, Brush = Brush Nylon headliner fabric used in Jaguars from 1971 to present O2 = Oxygen, at STP, two atoms bind to form dioxygen, with the chemical formula O2 O2S = Oxygen Sensor (O2, HO2, HO2S, Lambda Sensor) O2S, Narrowband = Older sensor that responds to narrow AFR range, Lean/Stoic/Rich O2S, Wideband = Newer sensor that responds to wide AFR range and eliminates lean-rich cycling OBD = On Board Diagnostics OBD I = On Board Diagnostics, first generation CARB standards, implemented on Jaguars 1991-’94 OBD II = On Board Diagnostics, second generation CARB standards, implemented on Jags from 1995 OBTW = “Oh, By The Way” (BTW) O/C = Open Circuit OCC = Oil Catch Can OCS = Occupant Classification System OCSCM = Occupant Classification Sensor Control Module (seat weight sensor) OD or O.D. = Outside Diameter (see ID) O/D or OD = Overdrive ODO = Odometer, milometer or mileometer Odometer = Milometer or mileometer (ODO) ODST= On Demand Self Test (a function in IDS, WDS or SDD) OE = Original Equipment, part or component fitted to new vehicles at Jaguar factory OEM = Original Equipment Manufacturer/Manufacture, may be Jaguar or a third party vendor OFC = Overrun Fuel Cutoff, ECM cancellation of fuel injection during engine overrun conditions Off Ramp = Exit Ramp, Slip road leaving a motorway Off Side = Passenger Side (OS, O/S, PS), see Near Side OHC = Overhead-cam, design used on Jaguar engines, see SOHC, DOHC, OHV OHV = Overhead-valve engine design, see OHC Oil Pan = Sump OL = Open Loop, ECM controlling fueling based on stored maps rather than O2S feedback (see CL) On Ramp = Entrance Ramp, Slip Road entering a motorway On Time = Duration of fuel injector opening, controlled by ECM (IPD, Pulsewidth, Pulse Width) On-Plug Ignition Coil = Each spark plug is fitted with its own ignition coil (COP) OP = Original Poster or Post in a forum thread Open Loop = ECM controlling engine by stored fueling maps rather than O2S feedback (OL) (see CL) OPUS = Oscillating Pick-Up System, Lucas ignition system employed on Jaguar V12 engines ORVR = On-Board Refueling Vapor/Vapour Recovery (part of the X308 EVAP system) OS or O/S = Off Side, passenger side (see Near Side), or Oxygen Sensor OSH = Oxygen Sensor Heater OSS = Occupancy Sensing System OT = “Off Topic;” Oil Temperature or Oil Temperature Sensor (EOT, EOTS, OTS) OTS = Oil Temperature Sensor (EOT, EOTS, OT); Other Than Sedan; Open Two-Seater Otto Cycle = 4-stroke thermodynamic cycle used in most gas/petrol auto engines (see Diesel Cycle) Overmat = Footwell rug or carpet mat Overpass = Flyover Overrider or Over Rider = Projection mounted to bumper to prevent interlocking with another vehicle OZRA = Upgraded version of GM400 automatic transmission used in Jaguar XJR-S Code:
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No IFS ? Independant Front Suspension
No LUMP? Less upkeep more power, nomenclature for Chevy converts |
Originally Posted by icsamerica
(Post 1161958)
No IFS ? Independant Front Suspension
No LUMP? Less upkeep more power, nomenclature for Chevy converts Thanks icsamerica, I'll add those on the next revision! Cheers, Don |
Additionals
Originally Posted by Don B
(Post 1161961)
Thanks icsamerica,
I'll add those on the next revision! Cheers, Don DPO = Despised Previous Owner, who bodged so many repairs that teasing them apart so it can be fixed correctly is an effort exceeding doing the repair correctly in the first place. |
Originally Posted by bdboyle
(Post 1161965)
PO = Previous Owner
DPO = Despised Previous Owner, who bodged so many repairs that teasing them apart so it can be fixed correctly is an effort exceeding doing the repair correctly in the first place. Hi Bryan! Thanks for DPO! Good one! Cheers, Don |
Interesting read. Thanks for posting.
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May be more in the link in my sig below
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X305 = XJ12 12-cylinder version of the X308 saloon X306 = XJR6 S/C version of the X308 saloon |
Originally Posted by theJPster
(Post 1166929)
They are versions of the X300 saloon, not the X308.
Good catch theJpster! I must have typed those in the wee hours when my eyes were crossing. If you find any other errors please let me know. I'm sure those aren't the only ones. :) P.S. I've made those corrections. Thanks! Cheers, Don |
Corrections made to online search version
All the above suggestions/corrections have been made to the online search version of this list: Jaguar Terminology Database
[updated 2/25/15] |
Don
thank you for the spent compiling this list, most valuable to a non auto engineer. Regards Avro RJ |
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