2004 JAGUAR XJ ECU

Contents
Section Contents
Owner Information . . . . . . . . . . . . . . . . . . . . . . . . . 1
Security and Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Before Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
On the Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Climate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Roadside Emergency . . . . . . . . . . . . . . . . . . . . . . . . 6
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
A comprehensive index is located at the back of this handbook.
Quick Overview
Fascia Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Warning Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Overhead Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Seats and Headrest Adjustment . . . . . . . . . . . . . . . . . . . . . . . iv
Steering Column Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . iv
Entry/Exit Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Pedal Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Door Mirror Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Window Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Gearshift Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Parkbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Exterior Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Direction Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Trip Computer Reset Button. . . . . . . . . . . . . . . . . . . . . . . . . . vi
Wipers and Washers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Audio System (CD Player model) . . . . . . . . . . . . . . . . . . . . . vii
Climate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Filling Station Information
Fuel Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Hood Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Underhood Top Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Tyre Pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

1 - 10 Owner Information
Floor mat retention
Ensure that the driver floor mat is
correctly positioned and secured under
the tongue on the retention post (A),
so that it does not interfere with the
operation of the accelerator pedal or the
brake pedal.
The positioning of the mat should be
especially checked when refitted after
removal for cleaning or servicing.

Security and Locks
Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4
Key Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7
Door Locks and Handles . . . . . . . . . . . . . . . . . . . 2 - 8
Alarms and Audible Signals. . . . . . . . . . . . . . . . 2 - 15
Security Features . . . . . . . . . . . . . . . . . . . . . . . 2 - 17
Luggage Compartment Emergency Release . . . . 2 - 19
Garage Door Opener Transceiver . . . . . . . . . . . 2 - 20

Security and Locks 2 - 3
2 Security and Locks
Ignition Switch
The fascia-mounted ignition switch,
on the right-hand side of the steering
column, has four key positions:
0.Ignition OFF – This is the only
position in which the key can be
inserted and removed.
I. Auxiliary – Allows use of some
electrical circuits, for example, radio
and window oper ation (accessory
delay only).
II. Ignition ON – All electrical circuits
except the starter motor are
activated. The key remains in this
position when driving. III.
Engine start – The starter motor is
operated for as long as the key is held
in this position, against spring
pressure.
When the key is turned back to the OFF
position, the delayed accessory feature
becomes active.
The circuits available in the auxiliary
position remain activated for a preset
timed period or until a front door is
opened.
To Remove the Ignition Key
Automatic transmissi on vehicles have a
key interlock feature.
Apply the electronic parkbrake, move the
gear selector to the Park ‘P’ position and
turn the key to position ‘0’.
The automatic transmis sion gear selector
must be placed in Park ‘P’ before the key
can be removed from the ignition switch.
When the key is removed, the gear
selector will be locked in Park.
Steering Column Lock
The steering column lock is controlled by
the ignition switch.
When the key is removed from the
ignition switch, you will hear the steering
column lock engage.
When the key is inserted into the ignition
switch, you will hear the steering column
lock disengage.
In rare circumstances, it may be
necessary to gently turn the steering
wheel from side to side to release the
steering column lock.
Gearshift Interlock
A brake pedal/gearshift interlock system
is incorporated in the automatic
transmission gear selector mechanism.
To move the gear selector from Park:
1. Turn the ignition key to position ‘II’ or start the engine.
2. Press the brake pedal.

2 - 4 Security and Locks
Vehicle Security
When the vehicle is unoccupied or
unattended, you are advised to do the
following:
• Apply the electronic parkbrake and move the gear selector to the
Park ‘P’ position.
• Do not leave children or pets in the vehicle unattended.
• Do not leave luggage or valuables on display.
• Remove all keys, including remote transmitters, from the vehicle prior to
locking the doors, even when the
vehicle is in your garage.
• Close all windows, hood, luggage compartment and glove
compartment, and lock all the doors.
• Park the vehicle where it can be seen. At night, park in a well-lit area.
• It is important to keep your keys in safe places at all times. Leaving them
in conspicuous places is an invitation
for a thief to steal them and,
consequently, your vehicle or
belongings. Keep them as secure as
you would your wallet or purse, both
at home and away.
Key Transmitter
The security system is controlled
remotely by a radio frequency, battery-
operated, integrated transmitter key.
The transmitter is ac tivated by pressing
one of the operating buttons.
( A ) – Unlocks and disarms the vehicle.
( B ) – Releases the luggage compartment
lock.
( C ) – Activates the convenience headlamp
feature and sounds the panic alarm.
For further information on the
convenience headlamp feature,
see Headlight convenience on
page 4 - 24.
( D ) – Locks and arms the vehicle.
( E ) – Locks/unlocks the key.
To free the key, press the release
button ( E). When not required press and
hold the button and fold the key into the
transmitter housing.

Security and Locks 2 - 5
Note:
1. The key transmitter may not operate correctly in areas which are subject to
interference from other radio
equipment operating on the same
frequency. Interference may emanate
from sources such as amateur radio,
telecommunications devices, medical
equipment, and other remote controls
or alarms. Where such interference is
experienced operate the key
transmitter as close as possible to the
vehicle, or use the key in the drivers
door lock.
2. All buttons on the key transmitter will not operate if a key is in the ignition
switch, however, if the doors, hood or
luggage compartment are open, only
button ( D) will not operate.
Each integrated key will operate all the
locks on your vehicle.
Additional integrated key transmitters
can be ordered from your Jaguar Retailer.
See Additional keys on page 2 - 7. Care of key transmitters
The key transmitters must be treated with
care. Do not expose to extremes of heat,
dust, humidity or fluids. Do not leave the
transmitter exposed to direct sunlight.
The battery is the only serviceable part.
Caution: Should a key transmitter be
lost, a new one can be obtained and
programmed to the vehicle by a
Jaguar Retailer, who will ask for proof
of vehicle ownership. It is advisable
to notify a Retailer as soon as a key
transmitter is lost or stolen and have
the remaining key transmitter(s)
reprogrammed. This will then
prevent the lost or stolen key
transmitter from being used to
disarm and unlock the vehicle.
Note:
Retailers keep a log of all enquiries
for replacement keys and notify
Jaguar Cars Ltd. of any such requests.
Radio Frequency
The radio frequency remote system
operates on a frequency subject to USA
Federal Communications Commission
(FCC) rules.
The device complies with Part 15 of the
FCC rules and RSS–210 of the Industry
Canada. Operation is subject to the two following
conditions:
1. The device may not cause harmful
interference.
2. This device mu st accept any
interference received, including
interference that may cause undesired
operation.
The key transmitter radio frequency
approval numbers for the USA and
Canada are as shown below:
USA – NHVWB1U241.
Canada – 3495 103 2304.
Note: The manufacturer is not
responsible for any radio interference or
TV interference caused by unauthorised
modifications to this equipment. Changes
or modifications not expressly approved
by the party responsible for compliance
could void the user’s authority to operate
the equipment.
Caution: The key-ring transmitter
may suffer interference from other
legal users of this radio frequency
band, such as radio amateurs,
medical equipment, remote controls
or alarm systems. To lock or unlock
the vehicle either use a key or
operate the transmitter as close to the
security antenna as possible.

2 - 6 Security and Locks
Key transmitter battery renewal
When the battery needs renewal there will be a significant
decrease in the effective range of the key transmitter. To renew
the battery, follow the procedure below:
• Insert a small, flat-blade, screwdriver at an angle of about 45 degrees, into the slot on th e back of the key transmitter
as shown ( A). Apply light pressure to the screwdriver and
lever the screwdriver forward to separate the two halves of
the key transmitter. Finally, pu ll the transmitter from the key
body.
• Insert the screwdriver into th e slot between the transmitter
covers adjacent to the key stowage area as shown ( B).
Apply light pressure to the screwdriver and lever the
screwdriver downward to separate the covers.
• Unscrew and remove the small screw ( C) and remove the
printed circuit board, taking care not to touch the battery
terminals. Remove the battery and dispose of it safely.
• Fit a new battery cell, type CR2032 (available from your
Jaguar Retailer), with the si de marked with the positive
symbol (+) downwards in the battery receptacle.
Avoid touching the new battery as moisture/oil from the
fingers can reduce the life of the battery and corrode the
contacts.
• Replace the printed circuit board making sure to engage the board under the securing tabs (D ), and secure with the
screw.
• Refit the cover and click into place with thumb pressure.
• Slide the transmitter back onto the key body until it clicks
into place.

Security and Locks 2 - 7
Keys
Vehicles are supplied with two integrated
transmitter keys and one green-headed
valet key. Additionally, black-headed keys
are available and for further details,
contact a Jaguar Retailer.
Integrated transmitter key
The integrated tr ansmitter key is
comprised of the key body, which is
integrated with a re mote transmitter.
The key operates all the locks on your
vehicle.
Green-headed valet key
The green-headed valet key is not
integrated with a re mote transmitter.
The key operates the driver’s door lock
and the ignition switch, but does not
operate the luggage compartment lock.
Black-headed key
The black-headed key is not integrated
with a remote transm itter, but it does
operate all the locks and the ignition
switch on your vehicle. The key is not
supplied with your vehicle.
Additional keys
Five additional keys can be programmed
to operate the locks on your vehicle. Note:
A maximum of three additional
integrated transmitter keys can be used.
All additional keys mu st be obtained from
and programmed by, a Jaguar Retailer.
Key number label
The key number is recorded on an
adhesive label which is affixed to the rear
of the integrated transmitter keys.
Peel off the label and keep safely, not in
the vehicle.
Immobilisation System
This vehicle is fitted with an
immobilisation system. The system
prevents the vehicle be ing driven away by
unauthorised persons. The features of the
system include the following:
Programmable key
An electronic device is fitted in the head
of each key which is programmed to the
vehicle electronic systems.
When a programmed key is inserted into
the ignition switch it is recognised and
accepted by the vehicle’s electronic
systems.
The engine cannot be started with a key
that is not programmed to the vehicle
electronic systems. Immobilisation system status light
The immobilisation system status is
shown by a Light Emitting Diode (LED),
which is located on the top surface of the
fascia panel (
A).
If an ignition key is put into the ignition
switch and turned to position ‘II’, and the
LED remains flashing af ter three seconds,
it is possible that the engine will not start.
Should this occur, please contact a Jaguar
Retailer, who will inve stigate the cause of
the flashing LED.