odometer JAGUAR X308 1998 2.G Workshop Manual

W
heels and Tires - Wheels and Tires
D
iagnosis and Testing
General Not

es
1.
1. Factory in
stalled tires and wheels are designed to provide optimum ride and ha
ndling characteristics when inflated
to the recommended inflation pressures, with vehicle loads not exceeding the full-rated load capacity.
2. 2. Correct tire pressures and driv ing technique have an important influence on tire life. Heavy cornering, excessively
rapid acceleration and unnecessary sharp braking increase tire wear.
3. 3. Replacement tires should follow the recommended:
Size
.
Speed

rating.
Load range. Radial c

onstruction type.
4. 4. The use of any other size or type of wheel / tire may seriously affect:
Safety. Ri
de.
Handlin

g.
Speed

ometer / odometer calibration.
Vehi

cle ground clearance.
Ti

re clearance between
body and chassis.
Wh
eel bearing life.
Brake cooli

ng.
5. 5. Wheels must be renewed when:
Impact damaged. Heavil
y corroded.
Porous W

heel stud holes or se
ats become damaged.
They h
ave excessive radial or lateral runout.
Safety Notes
• WAR

NINGS:
DO NOT MIX DIFFERENT TYPES OF TIRES ON THE SAM E VEHICLE, HANDLING MAY BE SERIOUSLY AFFECTED
RESULTING IN LOSS OF CONTROL.
DO NOT MIX DIFFERENT TYPES OF TIRES ON THE SAM E VEHICLE, HANDLING MAY BE SERIOUSLY AFFECTED
RESULTING IN LOSS OF CONTROL.
A TIRE AND WHEEL MUST ALWAYS BE CORRECTLY MATCHED. WIDER OR NARROWER TIRES THAN RECOMMENDED
COULD CAUSE DANGER THROUGH SUDDEN DEFLATION.
WHEN USING THE TEMPORARY SPARE WHEEL, SPEED MUST NOT EXCEED 80 KM/H (50 MPH). DRIVE WITH CAUTION
AND REPLACE WITH THE SPECIFIED WHEEL / TIRE ASSEMBLY AS SOON AS POSSIBLE.
TRACTION CONTROL (IF AVAILABLE) MUST NOT BE ENGAGED WITH THE TEMPORARY SPARE WHEEL FITTED.

o
perating. If an indicator bulb fails, the warning
lamp and ticking operate at twice the normal rate.
Sidelam
ps and Headlamps
Thes
e are controlled by rotating the end of the column switch as follows.
In the OFF position:
All
exterior lamps are switched OFF.
In the sidelamp position:
The front
sidelamps, tail, license plate and any other la
mps required by local legislation are switched ON.
The
sidelamps tell-tale lamp illuminates.
In the headlamp position, with the ignition switch in position II:
The h
eadlamps are switched ON in addition to the lamps switched on in the sidelamp position.
If the ignition is switched to the OFF position with the column switch in the headlamp position, the sidelamps, tail and
license plate lamps will stay ON, but the headlamps will switch OFF.
In the AUTO position (where fitted), with the ignition switch in position II:
Th
e sensor mounted on the back of the interior rear view
mirror monitors exterior light levels and automatically
switches the sidelamps and di pped headlamps ON and OFF.
The sensitivity level can be adjusted by turn ing the sensor control knob on the back of the interior mirror, left to decrease or
right to increase. The sensor must not be covered and the windscreen must be kept clean.
Headlamp Main Bea
m Position
Wi
th the column switch in
the headlamp position:
Movin
g the switch stalk away fro
m the steering wheel switches the headlamps to main beam.
Movin
g the switch stalk towards the steering wheel switches the headlamps to dipped beam.
The main beam tell-tale lamp illuminates when the headlamps are switched to main beam.
Ma
in Beam Flash
Wi
th the ignition switch and column switch in any position:
Pulling the

switch stalk agains
t spring pressure towards th e steering wheel illuminates the headlamps on main beam
for as long as the switch is held.
The main beam tell-tale lamp illuminates while the headlamps are illuminated.
M
essage Center Functions
T
he message center functions:
Are se

lected by the button located at the end of the lighting switch stalk.
Are se

lected in turn, by repeatedly pressing the button,
from the odometer reading, through the trip computer data
in sequence, and back to th e odometer reading again.

Information and Message Center - Information and Message Center
Description and Operation

The Driver's Information / Message Center has a liquid crystal display and is located at the lower area of the Major
Instrument Cluster.
The message center displays messages in text form for the driver, including odometer readings an d trip computer data. It
can also provide information normally covered by conventional wa rning lamps or typically indicate that a feature such as the
Automatic Stability Control is operating.
Located above the message center are two lamps, red for warning and amber for caution. When a message is displayed, the
appropriate lamp will illuminate to attract the driver's attention and to signify the importance of the message. The lamps
also illuminate simultaneously for some warnings and for some non-text warnin gs - refer to the Drivers Handbook for
variations in local markets.
Trip Computer

Pressing the trip switch on the left stalk of the steering colu mn switch assembly activates the trip computer which displays
trip data on the message center. Warning and Information messages have priority ov er trip data; if a driver information
message is displayed prior to activation of the trip computer , the trip data will appear for 10 seconds only, before being
ItemDescription
1Driver's Information / Message Center
2Amber Warning Lamp
3Red Warning Lamp
4Major Instrument Cluster
5Speedometer

Information and Message Center - Information and Message Center
Diagnosis and Testing
Tests Using the Portable Diagnostic Unit
Refer to PDU User Guide
The complexity of the electronics involved with the speedomete r and instrument cluster, of which the Message Center is a
part, and the two multiplexed communication networks which ar e connected to it preclude the use of workshop general
electrical test equipment. Therefore, refe rence should be made to the PDU User Guide for detailed instructions on testing
the speedometer and odometer.
The PDU systematically te sts and analyses all functions and the various systems affected by it.
Where a fault is indicated, before replac ing a component, some basic diagnostic methods may be necessary to confirm that
connections are good and that wiring is not damaged.