2004 JAGUAR XJ Ignition system

On the Road 4 - 5
Warning Lights
Warning lights are arranged within the
instrument cluster.
There are two warning lights, one red,
the other amber, located above the
message centre for primary and
secondary status of the warnings
displayed by the message centre.
‘RED’ warning lights are for primary
warnings. A primary warning must be
investigated immediately by the driver or
a Jaguar Retailer.
‘AMBER’ warning lights are for secondary
warnings when the driver must take
action and then report the fault to a
Retailer at the earliest opportunity.
Other lights within the instrument cluster
indicate system status, such as blue for
main beam and green for direction
indicators, when in operation. Lamp check
A lamp check is initiated when the
ignition is switched ON and lasts for
three seconds (excepting the air bag
warning light which will remain on for
6seconds). Ifany wa
rning light remains
on after this period, investigate the cause
before driving.
Note: Not all lamps are included in the
lamp check, for example main beam
headlights or direction indicators.
Low Oil Pressure (RED)
This lights up with the ignition
switched ON and should go
out once the engine is running.
If the light remains ON once the engine
has started or comes ON whilst driving,
loss of oil pressure is indicated.
STOP the engine immediately and
investigate the cause.
Caution: Do not restart the engine
until the cause of loss of oil pressure
has been identified and rectified.
First check the engine oil level,
seepage7-6.

On the Road 4 - 7
Brake (RED)
Lights up when:
• The ignition is ON and the parkbrake is ON.
• There is a fault with the parkbrake.
• The brake fluid is low.
If the light is ON and there are no
associated messages it means that the
parkbrake is applied.
If the light flashes, th ere is a fault with the
parkbrake system and the parkbrake
cannot be applied.
If the light is ON and the message
‘PARKBRAKE ON’ is displayed, it means
that the parkbrake is applied but the
vehicle is moving. Release the parkbrake
or stop the vehicle when it is safe to do
so. If the light is ON and the message ‘LOW
BRAKE FLUID’ message with a RED
priority light is displayed on the message
centre, low brake fluid is indicated.
In this case, loss of braking in one,
or both, brake circuits may be imminent.
!WARNING:
If the message ‘LOW BRAKE FLUID’ is
displayed, DO NOT drive the vehicle
until the fault is rectified. Consult a
Jaguar Retailer immediately.
Anti-lock Braking
System (ABS) (AMBER)
If a fault has been detected in
the anti-lock brake
system (ABS) or the electric
parkbrake system, this light will
illuminate.
A warning message will appear with this
light to indicate either ABS fault or
parkbrake fault.
The brake system will continue to
function normally, but without ABS
braking.
Should the light come on or stay on after
the bulb check cycle, stop the vehicle at
the first opportunity, turn the engine OFF
and then restart.
If the ABS light comes on again,
the vehicle should be driven to a Jaguar
Retailer at the earliest opportunity.
!WARNING:
If the ABS and brake warning lights
are ON at the same time, DO NOT
drive the vehicle until the fault is
rectified. Consult a Jaguar Retailer
immediately.

4-8 On the Road
Dynamic Stability Control
(DSC) (AMBER)
The light will flash at the rate of
twice a second when DSC is
operating.
The message ‘DSC NOT AVAILABLE’ will
be displayed and the light will be ON
continuously when a fault is detected in
the system.
If the system is turned OFF, a message
‘DSC OFF’ will be displayed for 4 seconds
and the warning light will remain ON.
Engine Malfunction (AMBER)
This light comes on when the
ignition is on and remains on
until the engine is started.
If the light comes on when the engine is
running then there is an engine
malfunction.
Specialised diagnostic equipment is
required to repair such faults. Report the
fault to a Jaguar Retailer.
The vehicle may go to ‘limp-home’ mode,
with the possibility of reduced engine
performance. Drive the vehicle with
caution.
ACC Follow Mode (AMBER)
If adaptive cruise control is
active, this lights up to indicate
that the vehicle is in ‘follow
mode’ and automatically maintaining the
desired gap to the vehicle immediately
ahead.
Only applicable to vehicles fitted with
adaptive cruise control.
Air Bag (AMBER)
If the air bag system develops a
fault, the warning light will
flash and then come ON and
remain on until the fault has been
diagnosed and cleared.
Report the fault to a Jaguar Retailer
immediately.
It is safe to drive the vehicle; however,
in an accident the air bags may not
operate.

4-10 On the Road
Audible Warnings
Various sounds are produced for warning and notification purposes as follows:
Hazard or Condition Remedy/chime or tone
Air bag system failure. A tone sequence is repeated five times. Report the fault to a Jaguar Retailer as
soon as possible.
External lights remain ON when the driver’s door
is opened. A chime will sound for 10 seconds as a warning that the lights are on when
the ignition is off and the drivers door is opened. Switch lights off.
Note:
The chime will not sound if the switch is in Autolamp position.
Key in ignition switch. A chime will sound if the key has been left in the ignition and the driver’s
door is opened after the ignition has been switched off or turned to
position ‘I’.
Hazard warning indicators ON. A ticking will sound until the hazard indicators are switched OFF.
Vehicle armed. This warns that the alarm will sound shortly unless the system is disarmed by
either pressing the unlock button on the key transmitter or by placing the key
in the ignition switch.
Left or right direction indicators ON. If the switch has not turned itself OFF, switch the turn indicator OFF when
the manoeuvre is completed. A ticking will sound until the indicators are
switched OFF.
Memory 1, 2 or 3 configuration saved. A short tone as the memory selection is saved.

4-12 On the Road
Message Centre
Driver information, messages and data
are displayed on the message centre
display panel situated within the
instrument cluster.
For the message centre to operate the
ignition must be switched ON
(position ‘II’).
The primary function of the message
centre is to inform the driver of the
following:
• Warning messages.
• Temporary alert messages.
• Information messages.The message centre displays:
• The total distance covered by the
vehicle.
• Trip computer information.
• Warning messages if system faults are detected.
• Status messages to indicate changes in
state of certain vehicle functions.
Messages
!WARNING:
If a red warning light is displayed,
investigate immediately and,
if necessary, stop the vehicle as soon
as possible but only when it is safe to
do so.
Most messages, when displayed, have an
associated warning light, red or amber,
above the display which will come on to
indicate the message priority.
If more than one message is active, each
is displayed in turn for two seconds in
order of priority.
Messages take priority over the odometer
reading or trip computer data and,
if active, will be displayed when the
ignition is switched ON. Message centre illumination
The message centre is lit at all times when
the ignition is ON, and message
brightness is controlled by the dimmer
switch.
All information displayed will be brightly
lit if the exterior light switch is OFF.
Note:
Warning lights are always brightly
lit and are not affected by the dimmer
switch.
Language Selection
The displayed language can be changed
to another language, if required.
Press the ML/km button on the trip
computer switchpack and whilst pressing,
turn on the ignition to position ‘II’.
Now press the ML/km button, each press
will display a different language.
When the desired language is shown,
press the A/B button. After three seconds
the new language will be displayed for
every message.
Note: If you wish to exit the language
changing procedure and keep the original
language, do not press the A/B button but
wait 10 seconds or turn the ignition off.

On the Road 4 - 17
AIR SUSPENSION FAULT None None Drive the vehicle with caution and inform your nearest Jaguar Retailer to have the
fault rectified.
VEHICLE TOO LOW None None The air suspension system is too low. Start the engine and wait for the message to clear before driving the vehicle. If the message is displayed while you are driving,
restrict your speed until the message is cleared. If the message is persistently
shown, inform your Retailer.
DRIVER’S
(or PASSENGER’S) DOOR AJAR None Red The driver’s and/or one or more passenger doors are open. Check that all doors
are closed before driving.
TRUNK OPEN None Red Check that the luggage co mpartment lid is closed before driving.
HOOD OPEN None Red Check that the hood is closed before driving.
ABS FAULT ABS Amber ABS will not be available. The braki ng system will work but care must be used if
braking heavily.
STEERING COLUMN LOCKED None Amber The steering lock system has failed to unlock the steering column. The engine
cannot be started. Remove the key and re-insert it into th e ignition switch, then try
again to unlock the column by turning the steering wheel gently to the left and
right (only small movements will be possible).
TRANSMISSION FAULT None Amber It is likely that the driver will expe
rience a degradation of transmission operation
and possibly reduced ac celeration capability.
Message
Warning
Light Priority
Indicator Meaning

4-34 On the Road
Parkbrake
The switch which operates the parkbrake is mounted on the
centre console to the rear of the gear selector.
To engage the parkbrake, pull the parkbrake switch upwards
and release. The switch will return to the neutral position.
The parkbrake warning/brake fluid low warning light on the
instrument cluster will illuminate.
To disengage the parkbrake, with the ignition switch in
position ‘II’ or with the engine running, apply the footbrake and
press the parkbrake switch down.
The parkbrake is automatically released when the gear selector
is moved from Park ‘P’ position.
If the vehicle is stationary and the gear selector is in ‘D’ or ‘R’
and the parkbrake is applied, then the parkbrake will
automatically release when the accelerator pedal is depressed. Inadvertent operation of the parkbrake whilst the vehicle is in
motion will cause the message ‘PARKBRAKE ON’ to be
displayed on the message centre, the warning light in the
instrument cluster will be illuminated and a warning chime will
sound.
If the parkbrake is applied whilst
the vehicle is moving, push the
switch down to release it. If the switch is in the neutral position
after parkbrake application, depressing the accelerator pedal
will release the parkbrake.
Note: If the vehicle is in motion, the parkbrake should only be
used as an emergency brake.
The parkbrake is auto matically applied when the key is removed
from the ignition switch. If you wi sh to keep the parkbrake off,
press and hold the parkbrake switch down and, at the same
time, remove the key.
Caution: Take care that the vehicle is safely parked to
prevent it from rolling if you wish to leave the parkbrake
off.
The warning light in the instrument cluster will remain on for a
short time if the parkbrake is applied when the key is turned to
position ‘0’ or if the key is removed.
If the battery has been discharged or disconnected a message
‘APPLY PARKBRAKE’ will be displa yed when the ignition is next
switched on. Depress the footbrake and pull the parkbrake
switch up to apply the parkbrake. This is required to reset the
parkbrake system which will now function correctly.

On the Road 4 - 35
Park Distance Control
Caution: It remains the driver’s
responsibility to detect obstacles and
estimate the car’s distance from
them. Some overhanging objects,
barriers, thin obstructions or painted
surfaces which could possibly cause
damage to the vehicle may not be
detected by the system. Always be
vigilant when reversing.
Park distance control is always
automatically switched on when the
ignition is turned on.
Caution:
1. If, for example, you are driving into a confined space such as a
home garage, the outer sensors
will detect the side walls and after
3 seconds will switch the tone off.
However, as movement
continues, the inner sensors will
eventually detect the rear wall
and will start the tone again.
2. The sensors are not active when the gear selector is in neutral,
therefore, take care if moving the
vehicle as the tone will not be
heard.
3. Do not clean the sensors with abrasive or sharp objects. Note:
1. For reliable operation, the sensors in
the front (if fitted) and rear bumpers
should be kept free from frost, ice and
grime.
2. When using a high pressure spray the sensors should only be sprayed briefly
and at least 8 inches (20 cm) distance
from the sensors.
3. The front parking aid may sound spurious tones if it detects a frequency
tone using the same band as the
sensors.
Rear Park Distance Control
When reverse gear is selected and
ignition is on, rear park distance control
automatically provides an audible
proximity warning (to the nearest
detected obstacle) when reversing the
vehicle if obstacles are detected within
the operating range, shown in the
illustration above (between
approximately 24 inches [60 cm] ( A) and
63 inches [160 cm] ( B).