Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 13
Re - enter the radio receiver/cassette player/mini disc player and compact disc player keycodes and preset' frequencies, if known.
Following reconnection of the battery, the engine should be allowed to idle until it has reached normal operating temperature as the stored
idle and drive values contained within the ECM have been lost. Allow the vehicle to idle for a further three minutes. Drive the vehicle at
constant speeds of approximately 48 km/h (30 mph), 64 km/h (40 mph), 80 km/h (50 mph), 96 km/h (60 mph) and 112 km/h (70 mph) for
three minutes each. This may cause a driveability concern if the procedure is not carried out. This will allow the ECM to relearn idle values.
Connecting a Slave Battery Using Jump Leads
WARNING: If the slave battery has recently been charged and is gassing, cover the vent plugs or covers with a damp cloth to reduce
the risk of explosion should arcing occur when connecting the jump leads.
• CAUTIONS:
A flat battery condition may have been caused by an electrical short circuit. If this condition exists there will be an apparently live
circuit on the vehicle even when all normal circuits are switched off. This can cause arcing when the jump leads are connected.
W hilst it is not recommended that the vehicle is jump started, it is recognized that this may occasionally be the only practical way to
mobilize a vehicle. In such an instance the discharged battery must be recharged immediately after jump starting to avoid permanent
damage.
Always make sure that the jump leads are adequate for the task. Heavy duty cables must be used.
Always make sure that the slave battery is of the same voltage as the vehicle battery. The batteries must be connected in parallel.
Always make sure that switchable electric circuits are switched off before connecting jump leads. This reduces the risk of sparks
occurring when the final connection is made.
WARNING: Make sure that the ends of the jump leads do not touch each other or ground against the vehicle body at any time while
the leads are attached to the battery. A fully charged battery, if shorted through jump leads, can discharge at a rate well above 1000 amps
causing violent arcing and very rapid heating of the jump leads and terminals, and can even cause the battery to explode.
Always connect the jump leads in the following sequence.
Slave battery positive first then vehicle battery positive.
Slave battery negative next and then vehicle ground at least, 300 mm (12 in) from the battery terminal e.g. engine lifting bracket.
Always reduce the engine speed to idle before disconnecting the jump leads.
Before removing the jump leads from the vehicle that had the discharged battery, switch on the heater blower (high) or the heated rear
screen, to reduce the voltage peak when the leads are removed.
Always disconnect the jump leads in the reverse order to the connecting sequence and take great care not to short the ends of the leads.
Do not rely on the alternator to restore a discharged battery. For an alternator to recharge a battery, it would take in excess of 8 hours
continuous driving with no additional loads placed on the battery.
Component Cleaning
To prevent ingress of dirt, accumulations of loose dirt and greasy deposits should be removed before disconnecting or dismantling
components or assemblies.
Components should be thoroughly cleaned before inspection prior to reassembly.
Cleaning Methods:
Dry Cleaning
Removal of loose dirt with soft or wire brushes.
Scraping dirt off with a piece of metal or wood.
Wiping off with a rag.
CAUTION: Compressed air is sometimes wet so use with caution, especially on hydraulic systems.
Blowing dirt off with compressed air. (Eye protection should be worn when using this method).
Removal of dry dust using vacuum equipment. This method should always be used to remove friction lining material dust (asbestos
particles).
Steam Cleaning
Calibration of Essential Measuring Equipment
WARNING: Failure to comply may result in personal injury or damage to components.
It is of fundamental importance that certain essential equipment e.g. torque wrenches, multimeters, exhaust gas analysers, rolling roads
etc., are regularly calibrated in accordance with the manufacturers instructions.
Use of Control Modules
Control modules may only be used on the vehicle to which they were originally fitted. Do not attempt to use or test a control module on any
other vehicle.
Functional Test
On completion of a maintenance procedure, a thorough test should be carried out, to make sure that the relevant vehicle systems are
working correctly.
Preparation
Before disassembly, clean the surrounding area as thoroughly as possible. When components have been removed, blank off any exposed
openings using grease-proof paper and masking tape. Immediately seal fuel, oil and hydraulic lines when separated, using plastic caps or
plugs, to prevent loss of fluid and the entry of dirt. Close the open ends of oilways, exposed by component removal, with tapered hardwood
plugs or readily visible plastic plugs. Immediately a component is removed, place it in a suitable container; use a separate container for
each component and its associated parts. Before dismantling a component, clean it thoroughly with a recommended cleaning agent; check
that the agent will not damage any of the materials within the component. Clean the bench and obtain marking materials, labels,
containers and locking wire before dismantling a component.
Dismantling
Observe scrupulous cleanliness when dismantling components, particularly when parts of the brake, fuel or hydraulic systems are being
worked on. A particle of dirt or a fragment of cloth could cause a dangerous malfunction if trapped in these systems. Clean all tapped holes,
crevices, oilways and fluid passages with compressed air. Do not permit compressed air to enter an open wound. Always use eye protection
when using compressed air.
Make sure that any O-rings used for sealing are correctly refitted or renewed if disturbed. Mark mating parts to make sure that they are
replaced as dismantled. Whenever possible use marking materials which avoid the possibilities of causing distortion or the initiation of
cracks, which could occur if a center punch or scriber were used. W ire together mating parts where necessary to prevent accidental
interchange (e.g roller bearing components). Tie labels on to all parts to be renewed and to parts requiring further inspection before being
passed for reassembly. Place labelled parts and other parts for rebuild in separate containers. Do not discard a part which is due for renewal
until it has been compared with the new part, to make sure that the correct part has been obtained.
Inspection
Before inspecting a component for wear or performing a dimensional check, make sure that it is absolutely clean; a slight smear of grease
can conceal an incipient failure. W hen a component is to be checked dimensionally against figures quoted for it, use the correct equipment
(surface plates, micrometers, dial gauges etc.) in serviceable condition. The use of makeshift equipment can be dangerous. Reject a
component if its dimensions are outside the limits quoted, or if damage is apparent. A part may be refitted if its critical dimension is
exactly to the limit size and it is otherwise satisfactory. Use Plastigauge 12 Type PG-1 for checking bearing surface clearance, e.g. big end
bearing shell to crank journal. Instructions for the use of Plastigauge and a scale giving bearing clearances in steps of 0,0025 mm (0.0001
in) are supplied with the package.
On-Board Diagnostics (OBD)
This vehicle uses programmed electronic control systems to provide engine management and emission regulation, automatic transmission
operation and anti-lock braking control. These control systems are integral with the On-Board Diagnostics (OBD) facility which is used in
conjunction with either the Jaguar approved diagnostic system or the more restricted scan tools.
The OBD information in this manual provides diagnostic and rectification procedures for emission related electrical and mechanical systems.
The information is intended to facilitate fault diagnosis and the subsequent rectification of the vehicle without recourse to the Jaguar
approved diagnostic system.
The manual covers the following OBD topics:
General Information
Engine Management System
Automatic Transmission
Anti-lock Braking System
Each section comprises one or more of the following sub-sections as required.
The Description and Operation sub-section includes:
A general illustration and parts list to help the identification of the particular system or component.
A brief description of the system operating characteristics and monitoring procedure accompanied by a component illustration.
Additional information, where appropriate, is provided in the form of component calibrations, characteristics and cross sectional
views.
A localized circuit diagram is included to provide circuit identification, connectors, splices, fuses, wire gauge and colors. See Circuit
Diagrams.
The Diagnosis and Testing sub-section is dedicated to fault analysis and rectification, and includes:
Recommended special tools.
Symptom chart; a chart containing all relevant Diagnostic Trouble Codes (DTC), their possible causes and an indication of the
appropriate test.
Specific pinpoint test(s), designed so that fault diagnosis can be carried out in a logical and efficient manner.
The Removal and Installation sub-section covers:
Removal procedure(s), formatted in the recommended sequence.
Illustrated guide to the use of special tools.
Illustrations to support the relevant text.
Installation procedure as above and including special recommendations for processes, lubricants and tightening torques.
Circuit Diagrams
To understand the relationship between the vehicle electrical system and the system circuit diagrams, Refer to the Electrical Guide.
In the interest of clarity, single lines may represent multiple wires. Refer to the color code (1st alpha) followed by the wire reference
(numeric/alpha/numeric) to trace origin and destination.
e.g. BW 647B002. BW (black with white trace) 647 (wire reference) B002 (stage from origin).
Glossary of Terms
This glossary of terms is intended to cover mainly emissions-related (to SAE J 1930) terminology, and other abbreviations that may be used
in this manual.
The required term may be looked-up in the left-hand column, and subsequent columns give the standard acronym, unit or abbreviation, and
definition.
Term(s)
Acronym / Unit /
Abbreviation
Definition
Accelerator Pedal
AP
Accelerator Pedal Position
Sensor
APP
Is a multitrack sensor which inputs the drivers demand into the engine control module
(ECM)
After Bottom Dead Center
ABDC
Event occurring after BDC
After Top Dead Center
ATDC
Event occurring after TDC
Airbag / Supplementary
Restraint System
Airbag, SRS
Airbag restraint system for driver and front seat passenger
Air Cleaner
ACL
Air Conditioning
A/C
Air Conditioning Control
Module
A/CCM
Module controlling air conditioning, heating and ventilation
Air Conditioning Signal
ACS
Air conditioning compressor clutch operation is signalled to the ECM which induces idle
speed corrections to compensate for engine load changes
Alternating current
ac
Air Fuel Ratio
AFR
Nominally 14.7 parts air to one part fuel
Ampere
A
SI unit of current
Ampere hour
Ah
ABS Control Module
ABS CM
System which prevents wheel lock-up under braking by sensing lack of rotation of a
wheel(s) and diverting fluid pressure away from it (them)
ABS / Traction Control
Control Module
ABS/TCCM
System which prevents wheel lock-up under braking by sensing lack of rotation of a
wheel(s) and diverting fluid pressure away from it (them)
Atmosphere
atm
Unit of pressure (1.01325 bar)
Barometric Absolute
Pressure Sensor
BARO Sensor
Sensor measuring the pressure of surrounding air at any given temperature and altitude
Battery positive voltage
B+
The positive voltage from a battery or any circuit connected directly to it
Before Bottom Dead Center BBDC
Event occurring before BDC
Before Top Dead Center
BTDC
Event (usually ignition) occurring before TDC
Blower
BLR
Device which supplies a current of air at moderate pressure, e.g. heater or A/C blower
Body Processor Module
BPM
Control module for body electrical systems, e.g. interior lamps, windshield wash / wipe
control
Bottom Dead Center
BDC
Lowest point of piston travel in a reciprocating engine
Brake horsepower
BHP
Effective horsepower developed by an engine or motor, as measured by a brake applied to
its output shaft
Brake Mean Effective
Pressure
BMEP
The part of the effective pressure developed in a cylinder that would result in a cylinder
output equal to the bhp of the engine
Brake On/Off
BOO
Indicates the position of the brake pedal
British Standard
BS
Standard specification issued by the British Standards Institution
British Standard
Automotive
BSau
Bus
Topology of a
communication
network
Bypass Air
BPA
Mechanical control of throttle bypass air
Camshaft Position Sensor
CMP Sensor
Indicates camshaft position
Canadian Motor Vehicle
Safety Standard
CMVSS
Canister Purge
CANP
Controls purging of the EVAP canister
Carbon dioxide
CO2
Colorless gas with a density of approximately 1.5 times that of air
Carbon monoxide
CO
Poisonous gas produced as the result of incomplete combustion
Case Ground
CSE GND
Control module casing ground
Catalytic converter
In-line exhaust system device used to reduce the level of engine exhaust emissions
Celsius
C
SI term for the Centigrade scale, with freezing point at zero and boiling point at 100
degrees
Central Processor Unit
CPU
The section of a computer that contains the arithmetic, logic and control circuits. It
performs arithmetic operations, controls instruction processing, and provides timing
signals and other housekeeping operations
Cylinder Head Temperature
Sensor
CHT Sensor
A sensor for measuring the temperature of the cylinder head
Closed Loop
CL
Closed Loop System
CL System
Control system with one or more feedback loops
Column/Mirror Control
Module
C/MCM
A self-contained group of electrical /electronic components, designed as a single
replaceable unit, and controlling one or more processes
Controller Area Network
CAN
A communication system which allows control modules to be linked together.
Crankshaft Position Sensor CKP Sensor
Generates crankshaft position information in conjunction with the CKPTR (also generates
speed information in certain applications)
Crankcase Ventilation
System
CV
System which scavenges camshaft cover and crankcase emissions and feeds them into the
inlet manifold
Cubic centimeter
cm³
Curb weight
Weight of vehicle with fuel, lubricants and coolant, but excluding driver, passengers or
payload
Data Link Connector
DLC
Connector providing access and/or control of the vehicle information, operating conditions,
and diagnostic information
Term(s)
Acronym / Unit /
Abbreviation
Definition
Data Output Line
DOL
Circuit that sends certain information from the ECM to the instrument cluster
Degree
deg, °
Angle or temperature
Department of
Transportation (US)
DOT
Which is a fibre optic ring network, can be diagnosed through the SCP network, and with
the optical bus tester.
Deutsche Institut fur
Normung
DIN
German standards regulation body
Diagnostic Module
DM
Supplemental Restraint System (non -controlling) module for diagnostics overview
Diagnostic Test Mode
DTM
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 on/off board aids, and the ability to interface with
remote diagnosis
Diagnostic Trouble Code
DTC
An alpha/numeric identifier for a fault condition identified by the On-Board Diagnostic
(OBD) system
Differential pressure
Pressure difference between two regions e.g. between intake manifold and atmospheric
pressures
Differential Pressure
Feedback EGR
DPFE
An EGR system that monitors differential EGR pressure across a remote orifice to control
EGR flow
Direct current
dc
Current which flows in one direction only, though it may have appreciable pulsations in its
magnitude
Domestic Data Bus
D2B
Exhaust Gas Recirculation
Temperature Sensor
EGRT
Sensing EGR function based on temperature change
Engine Management
System
EMS
The engine management system conditions and reads inputs, supplies processing
capability, and provides output drivers to control actuators as directed by software and
calibration
Engine Oil Pressure
EOP
EGR Vacuum Regulator
EVR
Controls EGR flow by changing vacuum to the EGR valve
EGR Valve Position
EVP
An EGR system that directly monitors EGR valve position to control EGR flow
Electrically Erasable
Programmable Read-Only
Memory
EEPROM
Electrically Programmable
Read-Only memory
EPROM
Electronic Secondary Air
Injection
EAIR
A pump-driven system for providing secondary air using an electric air pump
Engine Control Module
ECM
Engine Coolant Level
ECL
Engine Coolant
Temperature
ECT
ECT Sensor
ECTS
Thermistor which provides engine coolant temperature signal to the ECM to trigger
enrichment circuits which increase injector 'on' time for cold start and warm-up
Engine speed
RPM
Environmental Protection
Agency
EPA
Evaporative Emission
EVAP
System designed to prevent fuel vapor from escaping into the atmosphere. Typically
includes a charcoal filled canister to absorb fuel vapor
Evaporative Emission
Control Valve
EVAPP
Exhaust Gas Recirculation
EGR
System which reduces NOx emissions by adding exhaust gases to the incoming fuel/air
charge
Exhaust Gas Recirculation
Solenoid Vacuum Valve
EGRS
Exhaust Gas Recirculation
Temperature Sensor
EGRT Sensor
Exhaust Gas Recirculation
Valve
EGR Valve
Fan Control
FC
Engine cooling fan control
Federal Motor Vehicle
Safety Standard (US)
FMVSS
Figure
Fig.
Illustration reference
Flash Electrically Erasable
Programmable Read-Only
Memory
FEEPROM
Flash Erasable
Programmable Read-Only
Memory
FEPROM
Flywheel Sensor
CKFS
Sensor mounted so as to be triggered by each flywheel ring gear tooth to give an engine
speed signal
Fuel Injection
FI
Solenoid operated devices that spray a metered quantity of fuel into the inlet ports
Fuel Pressure Regulator
Control
FPRC
Controls fuel pressure regulator; used primarily to give extra fuel at cold start-up
Fuel Pump
FP
Pumps fuel from the fuel tank to the fuel injection system
Fuel Pump Monitor
FP Module
Monitors operation of fuel pump
Fuel Pump Relay
FP Relay
Relay which controls electrical current to fuel pump
Fuel rich/lean
Qualitative evaluation of air/fuel ratio based on a ratio known as stoichiometry,or 14.7:1
(Lambda)
Generic Electronic Module
GEM
Generator
GEN
Rotating machine which converts mechanical energy into electrical energy
Gramme centimeter
gcm
Gramme (force)
gf
Gramme (mass)
g
Ground
GND
Electrical conductor used as a common return for an electrical circuit or circuits, and with a
relative zero potential
Hard fault
A fault currently present in the system
Headlamp
HL
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