Jaguar XJ (2008 year). Manual - part 32

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Trip Computer

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Trip Computer

COMPUTER DISPLAY

The computer memory stores data for a 
journey or series of journeys until it is 
reset to zero.

The displayed information is for guidance 
only, as it can be affected by traffic, road 
and weather conditions.

Two independent memories are available 
(A and B) to allow two separate journeys 
to be recorded concurrently, forexample, 
work usage and evening/weekend usage.

Trip distance, average fuel economy and 
average speed will be prefixed A or B 
depending on the current memory 
selected.

Press the TRIP button on the end of the 
left column stalk switch repeatedly to 
display the data in the following order:
• Odometer.
• Trip distance.
• Range.
• Current fuel consumption.
• Average fuel economy.
• Average speed.
• Messages.

Odometer

The odometer shows the total vehicle 
distance travelled since the vehicle was 
new.

When the ignition is switched ON 
(position II) the display shows the 
odometer reading. This will be followed 
by any warning messages, if there are 
any, for example, PASSENGER DOOR 
OPEN.

The odometer reading is displayed in 
either miles or kilometres, depending on 
the units selected with the trip computer.

Trip Distance (A/B)

This displays the distance travelled since 
the last memory reset. 

The maximum trip reading is 16,090 
kilometres (9999.9 miles). The computer, 
either A or B, will automatically reset to 
zero if this distance is exceeded.

Range

This shows the predicted distance, 
kilometres or miles, that the vehicle 
should travel on the remaining fuel, 
assuming average fuel economy and fuel 
consumption stay constant.

Current Fuel Consumption

Instantaneous or at the moment fuel 
consumption, which is continuously 
updated.

Average Fuel Consumption (A/B)

The average fuel consumption, litres per 
100 kilometres or miles per gallon, based 
on the accumulated distance travelled 
and the accumulated fuel used.

Average Speed (A/B)

The average speed since the last press of 
the reset button.

E86333

Trip Computer

130

L

TRIP COMPUTER 
SWITCHPACK

ML/km

Pressing the ‘ML/km’ button alternately 
displays data in metric or imperial units.

A/B

Selects either A or B trip memory. Select 
the required data using the column stalk 
TRIP button and then pressing A/B will 
show the A or B information for that data.

Reset
• One short press clears (hides) the 

displayed message. Continue to give 
brief presses to clear one message 
after another until all messages are 
cleared.

• Press and hold for three seconds to 

reset or clear the selected trip A or B, 
to zero.

Note: If warning messages are hidden, 
the warning or fault still exists and requires 
investigation.

Warning and information messages have 
priority over trip data and, if active, will be 
displayed when the ignition is at 
position II.

SETTING THE TRIP COMPUTER

At the start of the journey, or series of 
journeys, to be recorded, reset the 
computer memory to zero as follows:

1. Press the TRIP button on the end of 

the left column stalk switch to select a 
trip function. The computer will 
display either TRIP A: or TRIP B: data.

2. Press the A/B button to select the trip 

(A or B) to be reset.

3. Press the RESET button and hold for 

three seconds.

The display will read:
RESETTING
TRIP A (or B).

Then it will reset and display:
A: 0 (or B: 0) or the new value.

Note: All trip functions for A or B, 
depending on which was selected, will be 
reset.

131

Trip Computer

R

CLEARING MESSAGES

Messages can be hidden by pressing 
RESET on the trip computer switchpack.

One press will hide one message. Once all 
messages have been hidden, the display 
will show trip data, a further press will 
display the odometer reading.

If RESET is pressed again, all active 
messages will be re-displayed. 
Repeatedly pressing the RESET button 
will cycle through the trip, odometer and 
message modes.

If a fault occurs when in trip computer or 
odometer mode, the relevant message 
will be displayed immediately.

If a trip computer function is selected by 
pressing the TRIP button while messages 
are displayed, the trip data will be 
displayed for ten seconds, then the 
message will reappear.

Note: Hidden messages reappear after an 
ignition OFF/ON cycle, if the fault remains.

Exterior Lighting

132

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Exterior Lighting

LAMPS MASTER SWITCH

!

WARNING:

It is an offence in certain countries to 
obscure front and rear lamps, direction 
indicators and reflectors.

Switch positions

The exterior lamps are controlled by the 
left-hand column stalk switch.

The rotary collar on the stalk has positions 
for turning the exterior lamps on or off and 
positions for autolamps/exit delay. These 
are:

OFF

All exterior lamps OFF (except vehicles 
provided with daylight running lamps).

Sidelamps

Switches on front side lamps, tail, license 
plate and any other marker lamps 
required by local legislation. 

Headlamps

With the ignition in position II, this 
position switches on low beam 
headlamps, in addition to the lamps 
switched on in sidelamp position.

The left-hand column stalk switch has two 
positions for controlling the high beam.

Pulling the switch towards the steering 
wheel and releasing causes the high 
beam to flash on and off. The high beam 
can be flashed at any time when the 
switch is pulled and will remain ON for as 
long as the switch is held.

The second position is to switch high 
beam headlamps ON. With the ignition in 
position II, first select low beam lamps, 
and then push the column lamp switch 
away from the steering wheel.

The blue warning lamp on the instrument 
panel and the high beam headlamps will 
come ON.

To turn high beam OFF, pull the column 
switch towards the steering wheel to 
return to low beam.

Note: If low beam is switched OFF with 
high beam still activated, both low and 
high beam will be extinguished. Both low 
and high beam will illuminate if low beam 
is turned on again.