1994 JAGUAR XJ6 Workshop Manual

rl Electrical
15.1.6 Fire Hazard Infonnath
Thermal decomposition or combustion may produce dense smoke and other dangerous fumes which in fire situations
form
a highly toxic explosive.
In the event of fire the surrounding area must be evacuated and
all personnel kept well upwind of the area.
Full fire fighting protective gear and
a self contained breathing apparatus operating in the positive pressure mode must
be worn for combating fire. Material near fires must be cooled with water spray to prevent ignition.
Fires should be allowed to burn themselves
out if not threatening to life or property. If fire is threatening to life or prop- erty use copious quantities of water to extinguish.
15.1.7 Ventilath
Local exhaust ventilation designed by a professional engineer should be provided if vapours, fumes, or dusts are gen- erated whilst working with airbag module.
The latest issue of the manual for recommended practices on 'Industrial Ventilation' is available from the
ACGIH Com- mittee on Industrial Ventilation, PO Box 16153, Lansing, MI 48910, USA.
The need for local exhaust ventilation should be evaluated by a professional industrial hygienist.
15.1.8 Respiratory Precauth
To prevent the inhalation of dangerous fumes and dusts, an approved mask should be worn.
15.1.9 Eye Protection
Chemical protective goggles are recommended where there is a possibility of eye contact with the propellant.
Safety glasses with side shields are recommended for
all other operations.
15.1. I0 Protective Clothing
Approved protective gloves, overalls and shoes / boots should be worn.
15.1.1 1 Handling and Storage Precautions
Do not store airbag module near live electrical equipment or circuitry. Store in a dry environment at ambient tempera-
tures.
Good housekeeping and engineering practices should be employed to prevent the generation and accumulation of
dusts. Store in compliance with
all local state and federal regulations.
15.1.12 Driver And Passenger Airbag Modules Assembly / Removal / Service Instructions
Before starting work, ensure ignition switch is in 'IocK position, key is removed and negative terminal cable
is disconnected from the battery.
As the airbag is equipped with a back up power source and due to the risk of airbag being inadvertently
deployed, wait one minute or longer before starting work.
0 Disconnecting the battery cancels the memory for clock, radio, seats, mirrors, steering column and any other
components using battery power. Reset memory after work is completed.
0 Never use airbags from other vehicles, always use new parts.
0 After work is completed, reconnect battery and perform warning light check see diagnostic manual.
0 Never use electrical probes to check voltage or electrical resistance.
0 Disconnect the airbag before carrying out any work on, or in the vicinity of module, or when using electric weld- ing equipment.
0 Always ensure that battery negative has been disconnected for one minute or longer before commencing any
removal procedure.
EB
Issue 1 August 1994 4 X300 VSM

15.1.13 Spillage and Leakage
If material is spilled or released,contact Jaguar Service for clean up procedures. All other personnel must be kept away
from contaminated area.
Do not dispose contaminated propellant or water into storm or sanitary sewers, ground water or soil.
Spills may be reportable to local state,
and/or federal authorities.
Material should
be disposed of by incineration or chemical oxidation under carefully controlled conditions by specially
trained individuals in accordance with local State and Federal regulations.
0
15.1.14 Scrapping Vehicles With Live Airbag(s)
When scrapping a vehicle with a live airbag, first deploy the
airbag in accordance with following procedures. This
procedure assumes airbag wiring is undamaged.
See Handling
/ Safety information.
If the airbag is
to be removed see Airbag Modules Assembly/ Removal/Service Instructions.
Equipment required: Insulation Displacement Connectors
(IDC) (Scotchloks) (two-off), battery, two-off ten meter
lengths of lmm2 wire fitted with crocodile clips at one end. (See Fig. 1).
WARNING: THE DEPLOYMENT PROCEDURE SHOULD BE PERFORMED OUTDOORS AWAY FROM OTHER
PERSONNEL.
Remove any loose debrisfrom around airbag and ensure no
flammable liquids are present.
Disconnect the vehicle battery. Fig. 1
Link harness conn&ion & deployment method
WARNING:
ALWAYS CONNECT TO AlRBAG FIRST, AS THE BAG WILL DEPLOY IMMEDIATELY ON CONNECTION TO
THE BATTERY.
Remove passenger side and driver side under-scuttles / knee bolster.
. Disconnect the airbag connector under the facia.
. Look for the yellow harness connectors and cut the wires originating from the airbag just above the mating plug.
w: The harness connected between the driver's airbag and the yellow connector has one red/purple feed wire and
one pinkbrown return wire.
The harness connected between the passenger's airbag and the yellow connector has two
red/purple feed
wires and one pinwpurple return wire.
Pass a 10 meter (33ft) link harness containing two lmm2 wires through the window aperture, and connect using an
. Close all doors, leave window with lead open.
. Ensure no personnel are in the car or in the area around the car.
. Move back 10 meters (33ft) and connect harness crocodile clips to battery: the airbag will immediately deploy.
Allow the unit to cool for at least 20 minutes. Cooling modules should be continuously monitored to ensure heat
(continued next page)
Insulation Displacement Connector (IDC) and two crocodile clips, to the airbag wires.
generated does not create
a fire with spilled liquids or other debris.
X300 VSM 5 Issue 1 August 1994

Electrical
(continued from previous page)
. The vehicle is now to be scrapped in normal manner with module installed.
Fig.
1
. In the event of any problems or queries, contact Jaguar Cars Ltd. or the importer.
15.1.15 Scrapping Vehicles With Deployed Airbag@
0 Verify that all installed airbags have been deployed or removed.
0 In the event of one airbag being deployed and one not deployed, it must be assumed that the undeployed airbag
is still live, therefore it must first be deployed.
0 The vehicle is now to be scrapped in a normal manner.
15.1.16 Disposal of live Airbag Modules
W
€AUTIQN: Never use a customer's vehicle to deploy airbags.
Equipment required: Deployment Cage,
IDC link harness (see 15.1.14 for details of components required), Battery,
Safety Goggles to BS 2092 grade 2 or equivalent, Rubber Gloves to PREN 374 class 2 or equivalent, Ear Protectors to BS EN 24869 or equivalent, Particulate Respirator to EN 149 grade FFP 25 or equivalent.
The deployment procedure should be performed outdoors away from other personnel.
Remove any loose debris from around airbag and ensure no flammable liquids are present.
Assemble the disposal cabinet
as shown in Fig.1 in line with the following procedures:
. Remove mesh guard from rig frame.
Attach guard to frame by bolting hinges to the frame.
(continued next page)
Modules
removedlrenewed by
Jaguar Service are to be returned to the importer for deployment and disposal.
X#w) VSM Issue 1 August 1994 6

(continued from previous page)
. Ensure relevant plate is fitted and rotate into position.
0
Fig. 1
Fit and secure airbag module on to plate.
. Clamp plate down using the two toggle clamps.
WARNING: ALWAYS CONNECT TO AlRBAG FIRST, AS THE BAG WILL DEPLOY IMMEDIATELY ON CONNECTION TO
THE BATTERY.
m: The harness connected between the driver's airbag and the yellow connector has one red/purple feed wire and
one pinkbrown return wire.
The harness connected between the passenger's airbag and the yellow connector has two red/purple feed
wires and one pinldpurple return wire.
rn Connect the 10 meter (33ft) link harness to the airbag wires.
. Ensure that no personnel are in the vicinity of the cabinet.
Move back 10 meters (33ft) and connect the link harness crocodile clips to the battery; the airbag will immediately
Allow the unit to cool for at least 20 minutes.
. Open guard and remove deployed module.
Seal deployed module in plastic bag ready for disposal.
. In the event of any problems or queries, contact Jaguar Cars Ltd. or the importer.
deploy.
15.1.17 Disposal Of Deploytd Airbag Modules
Deployed airbag modules are to be disposed of as special waste and must comply with local environmental require- ments. If in any doubt contact local authority for disposal instructions.
W. The storage, transportation, disposal and/or recycling of airbag module components must be preformed in
accordance with all appIicablefedera1,state and local regulations including, but not limited to, those governing
building and fire codes, environmental protection, occupational health and safety and transportation.
Modules removed and deployed by Jaguar Service are to be returned to the importer for disposal.
X300 VSM 7 Issue 1 August 1994

Electrical rl
15.2 INSTRUMENTS
15.2.1 General Description
The instruments measure, monitor and display data relevant to the vehicle’s performance. Data is received from
sensors positioned at various locations around the vehicle via two multi-pin sockets located at the rear of the
instrument panel and is than presented using three different visual display methods described as follows:
15.2.2 Analog Display
This is used to display road speed, engine speed, oil pressure, battery condition, fuel level and coolant temperature.
15.2.3 Indicator Lamps
These indicate the presence of any hazard /fault conditions or operational actions.
15.2.4 LCD (Liquid Crystal Disp/ay)
This single line, six digit seven segment display is normally used to display the odometer reading but can also be used
to display vehicle condition messages associated with particular warning lamps and trip computer information.
15.2.5 Transducers
These devices listed as follows transmit vehicle condition to the instruments:
0 Engine Coolant Temperature Transmitter
0 Low Coolant Level Probe
0 Oil Pressure Transmitter - AJ16N12
0 Fuel Gauge Tank Unit - AJlW12
Fault conditions and their causes displayed by the instruments and warning lamps are covered in more detail
by further information contained within the
Electrical Diagnostic Manual.
15.2.6 Instrument Panel, General
2 I I 3 1
1. 24 Way Connector 3. Identification Label 2. 4% Way Connector 4. Bulb Holder
Fig.
1 Instrument Panel, Rear View
X300 VSM Issue 1 August 1994 8
c

31
30
29
28 27
26
4 26 24 21 23 22 7 20 19 18 18 17 8
a
10
11
12
13
14
1s
1M-137
1. Tachometer 2. Speedometer
3. Battery Condition 4. FuelGauge 5. Oil Pressure 6. Coolant Temperature 7. Odometer /Trip Computer Display 8. Primary Warning Indicators (RED) 9. Exhaust Temperature 10. Low Oil Pressure 11. Seat Belt Not Fastened 12. Boot Open 13. DoorOpen 14. Coolant Level 15. Air Bag Fault 16. Status / Warning Lamps
17. Hand Brake On (RED) 18. Brake System Fault (RED)
19. Main Beam On (BLUE) 20. Direction Indicator Right (GREEN) 21. Status / Warning Lamps 22. Direction Indicator Left (GREEN) 23. Traction Control Off (GREEN) 24. Transmission Sport Mode (GREEN) 25. Charging Fault (RED) 26. Check Engine (AMBER)
27. Low Fuel Level (AMBER) 28. Anti - Lock Fault (AMBER) 29. Traction Control Fail (AMBER) 30. Bulb Fail (AMBER) 31. Washer Fluid Level (AMBER) 32. Transmission Fault (AMBER)
Fig.
1 Instrument Panel, Front Mew
w: The 'Premium Unleaded Fuel Only' caution is added to the Federal Market vehicles, also 'PARK BRAKE and
'BRAKE' replace international symbols used in all other markets.
m: Six cylinder vehicle version shown; the tachometer red-line on 12 cylinder vehicles starts at 6000 RPM.
The front of the
PECUSprogrammable instrument panel features 6 analog gauges, 22 warning lamps /tell tales and
a Liquid Crystal Display (LCD), the rear of the panel accommodates two PCB mounted connectors, one 24-way
connector, one 48-way connector, one instrument panel identification label and 14 light bulbs arranged in groups of
seven on either side. Three power inputs and two ground inputs are provided for 'POWER UP' and 'POWER DOWN'
sequence, the three power inputs comprising battery, ignition and auxiliary. The instruments are protected by a
housing
/ lens assembly.
15.2.7 Gauges
The two major gauges are tachometer and speedometer, and the four minor gauges indicate battery condition, fuel
level, oil pressure and coolant temperature.
Each gauge is contained
in a sealed non-serviceable can and must be renewed as a complete unit in case of any
damage.
CAUTION: Extreme care should be exercised when renewing instrument pand components to avoid damago to the delicate indicator needles.
X300 VSM 9 Issue 1 August 1994

IT Electrical
15.2.8 Odometer
With the ignition 'OFF' the odometer is permanently dis-
played but not illuminated. With the ignition 'ON' the odo- meter is displayed and also illuminated.
Trip information or driver information messages may be dis
-
played instead of the 'ODO'. By pressing the 'ODO' button
once or twice the trip and driver information messages can
be deleted and the
'ODO rdisplayed.
W. The odometer value is not stored within the LCD
module.
15.2.9 Trip Computev
This provides information on the vehicle's speed, fuel usage
and distance traveled
all of which are calculated by a micro
processor.
The controls, part of the fascia switch assembly, are located
on the right
-hand side pod positioned to the right-hand side
of the steering column.
I
/
J86-192L
Fig. 1
15.2.10 Driver Information Messages
Two fault messages, FLUID - AIRBAG are displayed via the LCD in conjunction with relevant warning lamps.
If an
airbag fault exists or the brake fluid is low, a message will automatically be displayed on the LCD and the relevant
warning lights illuminated. Should both faults exist at the same time, each message is displayed alternatively for ap
- proximately 2 seconds.
Messages may becancelled
by pressing the 'ODO button which allowsthe LCD to return to its last displayed message.
The warning lamps will not be extinguished. If the fault is not repaired the message(s) and the warning lamp(s) will
be redisplayed when the ignition is switched on.
15.2.11 /llumination
Warning indicator lamp illumination is controlled by a microprocessor located inside the instrument panel.
The seven right
-hand warning indicators are primary warning lamps illuminating 'RED and the seven left-hand warn-
ing indicators are secondary warning lamps illuminating 'AMBER'
The eight lower lamps are
a mixture of status and warning lamps.
With the ignition
'OFF' the LCD is not illuminated.
With ignition
'ON' and side lights 'OFF' the LCD is illuminated at maximum brightness.
With the ignition on and side lights
'OFF' the LCD is dimmed as are the gauges.
The long
life type bulbs are enclosed by orange and brown coloured bulb holders which must never be interchanged.
Replacement bulbs must always be of the same colour.
CAUTIQN: Always dwonnect the battery ground lead before commencing with any instrument rsimwal procedure.
15.2.12 General Repair Notes
0 After lens removal do not rest instrument panel face down as this causes damage to the delicate gauge needles.
Avoid scratching the gauge faces and ensure cleanliness when handling the panel.
0 To minimize the risk of damage and contamination to the instrument panel, all repairs must be carried out in a non - static and dust -free environment. Avoid touching connector pins and pcb components to minimize
risk of static damage.
0 The instrument panel has two different types of bulb holders each of which must be located correctly when
changing the bulbs.
Issue 1 August 1994 10 X300 VSM

15.3 SPEED CONTROL
0
Information to be issued with Amendment 1
X300 VSM 11 Issue 1 August 1994