1994 JAGUAR XJ6 Workshop Manual

Terrn(s1 Abbreviation Definition Previously used (if applicable) term(s) (or Eng- lish Eauivalentl
5
Babbitt metal
backlight
back
-up lamp
balk ring
t
battery positive Voltage B+
Barometric Absolute Pressure BARO
Sensor
base Idle
base timing
battery
before bottom dead center BBDC
before top dead center BTDC
blower BLR
Body Processor Module BPM
British Standards BS
I British Standards Automotive BSAu
brake horsepower
brake mean effective pressure BMEP
brake
ontoff BOO
brake rotor
I bottom dead center BDC
bypass air BPA
bumper guard
I
bushing I
rotating component of manual transmission
which prevents premature engagement of
gears
The positive Voltage from
a battery or any
circuit connected directly to it.
sensor measuring the pressure of
surrounding air at any given temperature
and altitude
Idle
rpm determined by the throttle lever
being hard
-set on the throttle body with the
IAC solenoid disconnected
Spark advance in degrees before top dead
center of the base engine without any control
from the PCM
Electrical storage device producing DC
Voltage by means of electrochemical
reaction
event occurring before BDC
event (usually ignition) occurring before TDC
Device which supplies a current of air at
moderate pressure, e.g. heater or
AJC blower
Control module for body electrical systems,
e.g. interior lamps, windshield wash wipe
control etc..
standard specification issued by the British
Standards Institution
effective horsepower developed by an
engine or motor, as measured by a brake
applied to its output shaft
that part of the effective pressure developed
in a cylinder that would result in a cylinder
output equal to the bhp of the engine
indicates the position of the brake pedal
process of bedding
-in the internal working
surfaces of e.g. an engine by avoiding excess
build
-up of heat
lowest point of piston travel in a
reciprocating engine
mechanical control of throttle bypass air
cylindrical plain bearing white
metal
backlight,
rear screen reversing lamp
baulk ring
B+,
+ve, VSS
BARO, APS
CCM (Central
Control Module).
CPU
brake disc
running
-in
overrider bush
Issue 1 August 1994 8 X300 VSM

Introduction i
Term(s) Abbreviation Definition
(if applicable)
GLOSSARY OF TERMS
Previously used term(s) (or Eng-
lish Equivalent)
indicates camshaft position
device designed to hold dry material, e.g.
evaporative emission canister
controls purging of the EVAP canister
colorless gas with a density of approximately
1.5 times that of air
poisonous gas produced as the result of
incomplete combustion
camshaft
I
CID
sensor,
Hall sensor
Camshaft
Position
Camshaft Position Sensor CMPS
canister
Canister Purge CANP
Carbon Dioxide
CO2
I Case Ground I CSEGND
Carbon
Monoxide
camber
CO
Canadian Motor Vehicle Safety
Standard
caster
Catalytic Converter
Celsius
center
I
CMVSS
C
centimeters
I cm
trail built in to the geometry of a steered
roadwheel to give
it a caster - self-steering -
effect
caster,castor
color
columnlmirror control module I C/M CM
charge current
Closed Loop
Closed Loop System
Clutch
clutch disc, clutch disk
clutch
throwout bearing
connecting rod bearing
CL
CLS
a shaft on which phased cams are mounted.
Usually used to regulate opening and closing
of engine cylinder head valves
current developed by the generator
control system with one or more feedback
loops
device which uses mechanical, magnetic or
friction type connections to facilitate
engaging or disengaging
two shafts or
rotating members charging
current
Control
module casing ground
inclination of the plane of a wheel to the
vertical plane
ofthe vehicle. May be negative
or positive.
Also convex curvature across road surface
bearing (usually split, plain) at the lower end
of the connecting rod where
it connects with
the crankshaft big
end bearing
in
-line exhaust
system device used to reduce
the level of engine exhaust emissions
SI term forthe Centigradescale, with freezing Doint at zero and boilina Doint at looo
I centre
I centimetres
friction disc of a clutch assembly clutch
plate,
centre plate,
diaphragm spring to release the clutch disc
I colour
Issue 1 August 1994 X300 VSM 9

Introduction
.OSSARY OF TERMS
Term(s)
Crankshaft Position
Crankshaft Position Sensor
Crankshaft Position
liming Ring
Crankcase Ventilation System
cubic centimeters
curb weight
4 Control
CKP
CKPS
CKPTR
cv
cm3
Control Module
P
T Abbreviation (if applicable)
CM
cylinder sleeve, sleeve
I I
Definition
a means or device to direct and regulate a process or guide the operation of a machine,
apparatus or system
a self-contained group of
electrical/electronic components, designed
as a single replaceable unit, and controlling
one or more processes as above
flexible, usually fabric, roof of an open
(convertible) vehicle
shaft, carrying pinions, running parallel to
the mainshaft in
a transmission unit
split pin which is used as
a locking device for
a castellated nut, etc.
generates crankshaft position information in
conjunction with the CKPTR (also generates
speed information in certain applications)
toothed ring which triggers the CKPS
system which scavenges camshaft cover and
crankcase emissions and feeds them into the
inlet manifold.
weight of vehicle with fuel, lubricants and
coolant, but excluding driver, passengers or
payload
thin
-walled, hard metal cylinder inserted into
the cylinder block of an engine, and in which
the piston runs
Previously used
term(s) (or Eng.
lish Eauivalent)
hood,
convertible hood
layshaft
split pin,
cotter pin
cubic
centimetres kerb weight
cylinder liner ~ ~~
Issue 1 August 1994 10 X300 VSM

Introduction
Term(s) Abbreviation Definition
(if applicable) Previously
used term(s) (or Eng-
lish Equivalent)
downshift
draft _.
drivability
driveshaft
driveshaft tunnel
dry sleeve
Dual Overhead Cam
Data
Data Link Connector
Data Output Line
defogger, backlight defogger
degree (angle or temperature)
Department of Transportation
(US)
Department of Transport (UK)
Deutsche lnstitut fur
Normuna
diameter
Diagnostic Module
Diagnostic Test Mode
Diagnostic Trouble Code
differential housing
differentia
I pressure
Differential Pressure Feedback
EGR
dimmer switch DOHC
DLC
DOL
deg, O
DOT
DTP DIN dia
DM
DTM
DTC
DPFE longitudinal
shaft transmitting power from
transmission output to rear axle differential
tunnel
in floor above the driveshaft (propeller
shaft)
cylinder sleeve which is not in contact with
coolant
engine configuration with two camshafts
positioned above the valves
(US) Fact or group of facts.
connector providing access
andlor control of
the vehicle information, operating
conditions, and diagnostic information
circuit that sends certain information from
the PCM to the instrument cluster
German Standards regulation body
Supplemental Restraint System
(non-controlling) module for diagnostics
overview
a level of capability in an OBD system. May
include different functional states
to observe
signals, a base level to read
DTCs, a monitor
level which includes information on signal
levels,
bi-directional control with onloff board aids, and the ability to interface with
remote diagnosis
an
alphahumeric identifier for a fault
condition identified by the On
-Board
Diagnostic
(OBD) system
rotating housing
(in a bevel differential)
attached to the crownwheel, carrying the
final drive pinions
pressure difference between two regions e.g.
between intake manifold and atmospheric
pressures
an EGR system that monitors differential
EGR pressure across a remote orifice
to control EGR flow change
down
draught
driveability
propeller shaft
transmission
tunnel
dry liner
(English) Group
of facts (i.e. plural
of
datum)
HRW, rear screen
heater, demister
Self Test Mode
Self Test Code.
Fuel Fail code
differential cage
dip switch,
dipper switch
Issue 1 August 1994 11 X300 VSM

Term(s) Abbreviation Definition (if applicable)
direct current dc current which flows in one direction only,
though it may have appreciable pulsations in
its maanitude
disk. disc
I I
Distributor Ignition DI
Distributor Ignition Cap DIC
Distributor Ignition Carbon Brush
DlCB
Distributor Ignition Leads DIL
Distributor Ignition Rotor Arm
DlRA
Previously used term(s) (or Eng- lish Equivalent)
disc
distributor
distributor cap
distributor car
-
bon brush
distributor leads
distributor rotor
arm
X300 VSM Issue 1 August 1994 12

Introduction c
GLOSSARY OF TERMS
Term(s) Abbreviation Definition Previously used (if applicable) term(s) (or Eng- lish Equivalent)
0
EGRT Sensor
EGR Vacuum Regulator
1 Read-only memory
I Electronic Engine Control
kronic Secondary Air Injection
Engine Control Module
Engine Coolant Level
ECT Sensor
Engine Speed
Engine Speed Sensor
1 Evaporative Emission Control
Va Ive
Exhaust Gas Recirculation
Solenoid Vacuum Valve
Exhaust Gas Recirculation
Temperature Sensor
Exhaust Gas Recirculation Valve
Extreme Pressure EGR
EGRT EVR
EVP
EDM
EEPROM EPROM EEC
EAlR
ECM ECL
ECT
ECTS
RPM
EPA
EVAP
EVAPP EGRS
EGRT Sensor
EGRV EP System
which reduces
NOx emissions by
adding exhaust gases to the incoming
fuel/air charae
Sensing EGR function based on temperature
change.
controls EGR flow by changing vacuum to
the EGR valve
an EGR system that directly monitors EGR
valve position to control EGR flow
Manual which deals with the diagnosis of
electrical faults (see also Vehicle Service
Manual and Unit Service Manual)
a system that provides electronic control of
enaine electronics
a pump
-driven system for providing
secondarv air usina an electric air Dump
thermistor which provides engine coolant
temperature signal to the PCME to trigger
enrichment circuits which increase injector
'on' time for cold start and warm-up
sensor fitted on flywheel of
VI2 engine;
provides engine speed information
system designed to prevent fuel vapor from
escaping into the atmosphere. Typically
includes a charcoal filled canister to absorb
fuel
vaoor
additives to drive axle lubricants. Designed
to protect the spiral bevel gears from wear
induced by their
slidingholling action EGR
EEPROM,
EPPROM
EPROM ECU
engine coolant level indicator
Coolant temp.
sensor, ECT
revlmin. RPM
purge valve
EGR solenoid
valve
EGR temperature
sensor
X300 VSM issue 1 August 1994 13

Fan Control FC
Fascia
farad F
I Federal Motor Vehicle Safetv I FMVSS
Standard (US)
fender
fiber
Figure (illustration) Fig.
firewall
Flash Electrically Erasable Pro- FEEPROM grammable Read-only Memory
Flash Erasable Programmable
FEPROM Read-only Memory
Flywheel Sensor CKFS
fueling Fuel Injectors FI
Fuel Pressure Regulator Control FPRC
Fuel Pump FP
Fuel Pump Monitor FPM
Fuel Pump Relay FPR
fuel
rich/lean
engine cooling fan control
SI unit of electrostatic capacitance; more
usually subdivided to microfarad fascia,
facia
wing,
(also tonneau)
fibre
bulkhead,
dash panel
sensor mounted
so as to be triggered by each flywheel sensor
flywheel ring gear tooth to give an engine
speed signal
fuelling
iniectors
solenoid operated
devices that spray a fuel injectors,
metered auantitv of fuel into the inlet
~0rt.s
Drimarilv to aive extra fuel at cold start-uo used I
controls fuel pressure regulator;
I I
monitors oDeration of fuel DumD I I
qualitative evaluation of airbuel ratio based on a ratio known as stoichiometry, or 14.7:l
(Lambda)
Issue 1 August 1994 14 X300 VSM
0
0

a I
Introduction
Term(s) Abbreviation Definition (if applicable)
GLOSSARY OF TERMS
Previously used term(s) (or Eng-
lish Equivalent)
gauge (gage also used, but not
preferred)
gasoline
gas tank
gear cluster
gearshift (lever), shift lever
generator GEN rotating machine which converts mechanical
energy into electrical energy
Gramme centimeter
9cm
Grammes (force) 9f
Grammes (mass) g ground GND electrical conductor used as a common re-
turn for an electrical circuit or circuits, and
with a relative zero potential
-
I Issue 1 August 1994 15 X300 VSM
gauge
petrol,
petroleum spirit
petrol tank, fuel
tank
I a ys haft
gear lever
alternator
earth