charging JAGUAR XJ6 1994 2.G Workshop Manual

Introduction i
Term(s) Abbreviation Definition
(if applicable)
GLOSSARY OF TERMS
Previously used term(s) (or Eng-
lish Equivalent)
indicates camshaft position
device designed to hold dry material, e.g.
evaporative emission canister
controls purging of the EVAP canister
colorless gas with a density of approximately
1.5 times that of air
poisonous gas produced as the result of
incomplete combustion
camshaft
I
CID
sensor,
Hall sensor
Camshaft
Position
Camshaft Position Sensor CMPS
canister
Canister Purge CANP
Carbon Dioxide
CO2
I Case Ground I CSEGND
Carbon
Monoxide
camber
CO
Canadian Motor Vehicle Safety
Standard
caster
Catalytic Converter
Celsius
center
I
CMVSS
C
centimeters
I cm
trail built in to the geometry of a steered
roadwheel to give
it a caster - self-steering -
effect
caster,castor
color
columnlmirror control module I C/M CM
charge current
Closed Loop
Closed Loop System
Clutch
clutch disc, clutch disk
clutch
throwout bearing
connecting rod bearing
CL
CLS
a shaft on which phased cams are mounted.
Usually used to regulate opening and closing
of engine cylinder head valves
current developed by the generator
control system with one or more feedback
loops
device which uses mechanical, magnetic or
friction type connections to facilitate
engaging or disengaging
two shafts or
rotating members charging
current
Control
module casing ground
inclination of the plane of a wheel to the
vertical plane
ofthe vehicle. May be negative
or positive.
Also convex curvature across road surface
bearing (usually split, plain) at the lower end
of the connecting rod where
it connects with
the crankshaft big
end bearing
in
-line exhaust
system device used to reduce
the level of engine exhaust emissions
SI term forthe Centigradescale, with freezing Doint at zero and boilina Doint at looo
I centre
I centimetres
friction disc of a clutch assembly clutch
plate,
centre plate,
diaphragm spring to release the clutch disc
I colour
Issue 1 August 1994 X300 VSM 9

From the low pressure accumulators,volume is pumped back into theTMC, forcing the brake pedal back. To optimize the friction coefficient between tire and road, brake pressure is increased in small steps by closing the outlet valve and
opening the inlet valve and re-charging brake pressure.
During the pressure build
up phase, the volume required for replenishment is supplied by the TMC and additionally
by the pump from the low pressure accumulators. Since the delivered flow is generally greater than volume flow
drained from the brake circuits, the low pressure accumulators serve as intermediate accumulators to compensate for
temporary volume flow peaks.
The TMC piston positions, and therefore the brake pedal, vary with the fluid displacement in the brake caliper. As con
-
trolled pressure in the brake caliper decreases and increases during ABS, the brake pedal 'cycles', informing the driver
that controlled braking is in progress.
Actuation of the brake pedal, causes the central valve (item
5) in the TMC to close. This action prevents damage to the
TMC piston seals.
At the end of a brake application, volume is restored to the TMC, at
low pressure from the fluid reservoir (item 6).
Issue 1 August 1994 X300 VSM 13

Climate Control Systems
Illustration 1 JaguarNumber I Deription Not-
not i II ustrated
11. TORQUE TIGHTEN1 NG SPEC1 FICATIONS
Recovery 1 Recycling 1 Recharging
station See
standards
fixing
Blower assembly to body
Condenser to receiver
1 drier (tube nut)
lightening Torque
I (Nm)
4-7
14
- 18
Hoses to evaporator plate
Liquid line to receiver
1 drier (tube nut)
I Discharge hose to condenser (tube nut) I 22 - 28 I
7 - 10
14- 18
I Heater 1 cooler case to body I 5-7 I
I Hoses to compressor I 7-10 I
I Mountina strut to heater / cooler case I 5-7 I
X300 VSM Issue 1 August 1994 ii

Climate Control Systems
0 14.9 GENERAL SYSTEM PROCEDURES
14.9.1 Leak Test
Faults associated with low refrigerant charge weight and low pressure may be caused by leakage. Leaks traced to
mechanical connections may be caused by torque relaxation or joint face contamination. Evidence of oil around such
areas is an indicator of leakage. When checking for non visible leaks use only
a dedicated HFC 134A electronic analyzer
and apply the probe all round the joint / connection.
Should a leak betraced to a joint,checkthatthefixing issecuredtothecorrecttightening torque before any other action
is taken.
Do not forget to check the compressor shaft seal and evaporator.
CAUTION : Never use a dedicated CFC 12 or naked flame type analyzer.
14.9.2 Charge Recovery (System depressurization)
The process of HFC 134A recovery will depend on the basic characteristics of your chosen recovery/ recycle I recharge
equipment, therefore, follow the manufacturer's instructions carefully.
Remember that compressor oil may be drawn
out of the system by this process, take note of the quantity recovered
so that it may be replaced.
CAUTION: Observe all relevant safety requirements.
Wear suitable eye and skin protection
Do not mix HFC 134A with CFC 12. Do not vent refrigerant directly to atmosphere and always use Jaguar approved recovery I recycle I re- charge equipment.
Take note of the amount of recovered refrigerant, it will indicate the state of the system. 0
14.9.3 Evacuating the System
This process, the removal of unwanted air and moisture, is critical to the correct operation of the air conditioning sys-
tem. The specific procedures will vary depending on the individual characteristics of your chosen recovery I recycle / recharge equipment and must be carried out exactly in accordance with the manufacturers instructions. However,
it is recommended that the initially only the HIGH side valve be opened at the start of the procedure. After a short time a small depression should be seen on the LOW side, at which point the LOW side valve may be opened and the evacu- ation process completed. If a vacuum is not registered on the LOW side it may indicate that the expansion valve is
jammed closed or that the system is blocked. This simple check may save time and effort when the system is re- charged.
Moisture can be highly destructive and may cause internal blockages due to freezing, but more importantly, water sus- pended in the PAG oil will damage the compressor. Once the system has been opened for repairs, or the refrigerant
charge recovered, all traces of moisture MUST be removed before recharging.
14.9.4
The amount of oil drawn out during a recovery procedure will be dependent on the state of the system and the rate
of recovery. The quantity will be approximately 30 to 40 ml; this may vary, and the figure is given only for guidance.
The oil separator vessel in the recovery equipment must be clean and empty
at the start of the process so that the quan- tity of oil which is drawn out may be accurately measured.
Oil may be added by three methods,
1 and 2 being direct into the system and 3 with the compressor off the vehicle;
1. Via the recovery I recycle 1 recharge station.
2. Proprietary oil injector.
Adding Lubricating Oil - Compressor Related
1ynfa: Equipment manufacturer's instructions must be adhered to when using direct oil introduction.
3. Directly into the original, or new unit, because of rectification work to the existing compressor, or the need to fit a new compressor.
Original
From an existing compressor, drain the oil into a measuring cylinder and record the amount. Flush the unit out
with fresh PAG oil and drain thoroughly, Replenish the compressor with the same amount of PAG oil that was
originally drained out and immediately plug all orifices ready for refitting to the vehicle.
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Climate Control Systems
New
Drain and discard the transit lubricating oil from a new compressor before it is be fitted. An adjustment must
then be made to avoid over-filling the system, by taking into account;
a) the quantity found in the original compressor.
b) the quantity deposited in the recovery equipment oil separator from the charge recovery operation.
Drained from original compressor
50 ml
Recovered from oil separator 40 ml
Quantity to be put in new compressor 50 + 40 = 90 ml
Typical example:
Please note that the discrepancy between the cumulative figure of recovered and drained oil and the nominal capacity
of
180 ml is caused by normally unrecoverable oil being trapped in components such as the condenser, receiver/ drier
or evaporator.
The previous statements apply even
if a problem has occurred due to oil leakage. The amount of oil lost due to leakage
is generally small, so to avoid over-filling please follow the example.
If however the recovery process has not been necessary because refrigerant has also been lost, then ONLY replace the
quantity drained from the original compressor.
14.9.5
Should a major component such as condenser, receiver / drier or evaporator be renewed then an adjustment to the
system oil level must be made. This may be carried out in the same way as the examples for the compressor except
for the fact that trapped oil within any one of these components cannot normally be drained. Therefore, a nominal
amount of oil should be substituted
in addition to that recovered from the recovery station separator.
Adding Lubricating Oil - Component Related
Condenser Add 40 ml
Evaporator Add 40 ml
Receiver / drier NO adjustment
CAUTION: Always decant fresh oil from a sealed container and do not leave oil exposed to the atmosphere. PAG
oil is very hygroscopic (absoh water) and will rapidly attract atmospheric moisture.
PAG oil must NEVER be mixed with mineral based oils.
Do not re-use oil following a recovery cycle, dispose of it safely.
14.9.6 Adding Refrigerant
In order that the air conditioning system may operate efficiently it must contain a full refrigerant charge. The indica- tions of some system defects, and the results of certain tests, will show that a low charge is the most probable cause
of the fault. In such cases the charge should be recovered from the system, the weight noted, and the correct amount
installed.
Should refrigerant be added in liquid form, initial engine start
-up revolutions must NOT exceed 2000 RPM for a period
of (2) two minutes. If the engine speed is excessive, compressor damage may occur due to the lubricating oil and the
liquid refrigerant being initiallyforced around the system as a 'slug', thus taking oil awayfrom the compressor. These
marginal lubrication conditions in the compressor will cease as the refrigerant becomes gaseous.
Never attempt to 'guess' the amount of refrigerant in a system, always recover and recharge with the correct charge
weight; this is the only accurate method.
CAUTION: If oil was drawn out during the recovery process, the corM amount may be added directly from your
recovery / recycle /recharge station (if so equipped) prior to the 'charging process'. It must be stressed that the need to protect compressor oil from moisture is vital, observe the procedures
in HANDLING LUBRICATING OIL and those concerning excessive engine revolutions.
Issue 1 August 1994 14 X300 VSM

Climate Control Systems
14.13 SYSTEM CHECKING WITH MANIFOLD GAUGE Sm
14.13.1 Evacuating the Manifold Gauge Set
Attach the centre (service) hose to a vacuum pump and start the pump. Open fully both high anddow valves and allow
the vacuum to remove air and moisture from the manifold set for at least five minutes.
Turn the vacuum pump off and isolate it from the centre service hose but do not open the hose to atmosphere.
CAUTION: It is imperative that the vacuum pump is not subjected to a positive pressure of any degree. Therefore
the pump must be frtted with an isolation valve at the centre (service hose) connection and this valve
must be closed before the pump is switched off. This operation replaces the 'purge' procedure used on
previous systems. Observe the manufacturefs recommendation with regard to vacuum pump oil
changes.
14.13.2 Connecting the Manifold Gauge Set
CAUTION: Only use hoses with connectors which are dedicated to HFC 134A charge ports.
Attachment of the hose quick release connectors to the high and low side system ports is straightfotward, provided
that the high and low valves are closed and the system is NOT operational.
Assessment of system operating efficiency and fault classification may be achieved by using the facilities on your
Re- covery / Recharging / Recycling station, follow the manufacturers instructions implicitly and observe all safety con- siderations.
WARNING: UNDER NO CIRCUMSTANCES SHOULD THE CONNECTIONS BE MADE WITH THE SYSTEM IN
OPERATION OR THE VALVES OPEN. SHOULD THE VALVES BE OPEN AND A VACUUM PUMP OR
REFRIGERANT CONTAINER ATTACHED, AN EXPLOSION COULD OCCUR AS A RESULT OF HIGH
PRESSURE REFRIGERANT BEING FORCED BACK INTO THE VACUUM PUMP
OR CONTAINER.
14.13.3 Stabilizing the System
Accurate test gauge data will only be attained if the system temperatures and pressures are stabilized.
Ensure that equipment and hoses cannot come into contact with engine moving parts or sources of heat.
It is recommended that a free standing air mover is placed in front of the vehicle to provide air flow through the con- denser / cooling system, see illustration below.
Start the engine, allow
it to attain normal working temperature and set at fast idle (typically 1200 to 1500 rpm). Select full air conditioning performance.
With all temperatures and pressures stable, or displaying symptoms of faults; begin relevant test procedures.
Fig.
1
Issue 1 August 1994 20 X300 VSM

Electrical cl
.
SECTION CONTENTS
Subsection Title SRO Page
i ................ PreliminaryPages .................................................................... i
15.1 ............. Supplemental Restraint System (SRS) .................................................... 1
15.1.1 ............ SRS. General Description .............................................................. 1
15.1.2 ............ SRS. Handling Undeployed Modules .................................................... 2
15.1.3 ............ SRS. Emergency First Aid Procedures .................................................... 3
15.1.4
............ SRS. Safety Procedures. Handling Deployed Modules ...................................... 3
15.1.5 ............ SRS. Safety Procedures. Handling Undeployed Damaged Modules ........................... 3
15.1.6. ........... SRS. Fire Hazard Information .......................................................... 4
15.1.7.
........... SRS. Ventilation ...................................................................... 4
15.1.8 ............ SRS. RespiratoryPrecautions ........................................................... 4
15.1.9.
........... SRS. Eye Protection ................................................................... 4
15.1.10
.......... SRS. Protective Clothing ............................................................... 4
15.1.11 ........... SRS. Handling & Storage Precautions .................................................... 4
15.1.12 .......... SRS. Modules. Assembly/ Removal/Setvice Instructions ................................... 4
15.1.13 .......... SRS. Spillage & Leakage ............................................................... 5
15.1.14 .......... SRS. Scrapping Vehicles With Live Airbags ............................................... 5
15.1.15 .......... SRS. Scrapping Vehicles With Deployed Airbags .......................................... 6
15.1.16 .......... SRS. Disposal of Live Airbag Modules ................................................... 6
15.1.17 .......... SRS. Disposal of Deployed Airbag Modules .............................................. 7
15.2 ............. Instruments ........................................................................\
. 8
15.2.1
............ Instruments. General Description ....................................................... 8
15.2.2 ............ Instruments. Analog Display ........................................................... 8
15.2.3
............ Instruments. Indicator Lamps ........................................................... 8
15.2.4.
........... Instruments. Liquid Crystal Display ..................................................... 8
15.2.5.
........... Instruments. Transducers .............................................................. 8
15.2.6. ........... Instruments. Panel. General ........................................................... 8
15.2.7.
........... Instruments. Gauges .................................................................. 9
15.2.8. ........... Instruments. Odometer ............................................................... 10
15.2.9
............ Instruments. Trip Computer ........................................................... 10
15.2.10 .......... Instruments. Driver Information Messages ............................................... 10
15.2.11 ........... Instruments. Illumination ............................................................. 10
15.2.12 .......... Instruments. General Repair Notes ..................................................... 10
15.3 ............. Speed Control ...................................................................... 11
15.4 ............. Driver Ergonomics .................................................................. 12
15.5
............. Battery& ChargingSystem ........................................................... 13
15.5.1 ............ Battery, General .................................................................... 13
15.5.2 ............ Battery, ReserveCapaci ty ............................................................. 13
15.5.3.
........... Battery. Cranking Performance ........................................................ 13
15.5.4 ............ Battery. Electrical Data ............................................................... 13
15.5.5
............ Battery. State of Charge .............................................................. 13
15.5.6 ............ Battery, Rate of Charge ............................................................... 13
15.5.7 ............ Battery. LoadTest ................................................................... 13
15.5.8 ............ Battey. Specific Gravity Test .......................................................... 14
15.5.9 ............ Battery. Electrolyte Temperature Correction .............................................. 14
15.5.10 .......... Battery. Health & Safety Precautions ................................................... 14
15.5.11. .......... Battery. Remove & Refit ......................................... 86.15.01 ............ 15
e
e
X300 VSM i Issue 1 August 1994

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

15.5.8 wific Gravity Test
The specific gravity of the electrolyte determines the level of the float in the liquid. With the float in a high position
the specific gravity is high and when the specific gravity is low the float sinks to the lower position.
Using
a hydrometer the specific gravity readings are taken when the liquid level crosses the scale on float. This should
give a accurate indication of the state charge of the battery.
The volume and the specific gravity of the electrolyte varies with the change in temperature.
15.5.9 Electrolyte Temperature Correctkm
For every 10- below 15% subtract 0.007 from the hydrometer reading, and for every 10°C above 15OC add 0.007 to
the hydrometer reading.
Note: Use only distilled water for topping up electrolyte. The electrolyte must not exceed 51.66OC during charging.
If after 30 minutes charging the battery current is not equal or greater than 3A, dispose of the battery.
15.5.10 Heahh and Sakty Precautions
As batteries contain sulphuric acid and explosive mixtures of hydrogen and oxygen gases, it is strongly recommended
that protective clothing is worn.
Avoid spilling acid to prevent damage to clothing and skin bums.
If accidentalty spilled or splashed on clothing or skin, rinse with cold water. As a neutralizer, a solution of baking soda
or ammonia and water may be used.
In the event of skin or eye contact rinse the affected areas with water and should this not
be sufficient seek medical
attention.
Any trace of acid spilled or splashed on the vehicle should be rinsed with clean water.
BEFORE AND WHILST WORKING WITH THE BATTERY BE AWARE OF THE FOLLOWING SAFETY PRECAUTIONS
o particularly during charging, highly explosive hydrogen is emitted.
0 do not smoke when working near the battery.
o avoid sparks, short circuits or other sources of ignition.
o switch off current before connecting or disconnecting any electrical terminals.
o always disconnect battery ground lead first and reconnect last.
o ensure battery is charged in a well ventilated area.
o switch off the charger before disconnecting.
WARNING: WHEN PREPARING ELECTROLYTE OF A DESIRED SPECIFIC GRAVITY, ALWAYS POUR THE
CONCENTRATED ACID SLOWLY INTO THE WATER AND NOT WATER INTO THE ACID.
HEAT IS GENERATED WHEN MIXING ACID WITH WATER, HENCE ADD SMALL AMOUNTS OF ACID AND
STIR SLOWLY INTO THE WATER. ALLOW TO COOL IF NOTICEABLE HEAT DEVELOPS. EXCEPT FOR LEAD
DO NOT STORE ACID
IN EXCESSIVELY WARM LOCATIONS OR DIRECT SUN LIGHT.FUEL VAPOUR IS EXTREMELY FLAMMABLE, HENCE GREAT CARE MUST BE TAKEN WHILST WORKING ON THE FUEL
SYSTEM. LINED
CONTAINERS, ALWAYS USE NON
- METALLIC CONTAINERS AND / OR FUNNELS.
Issue 1 August 1994 14 X300 VSM

Description Capacity Type
Door guard lamp. 12V 5W Capless long life
Flasher side repeater 12V 5W Capless long life
Fog lamp - Front. 12v 55w Halogen H3
Fog lamp
- Rear guard 12v 21w Bayonet long life
Front turn indicator
I 12v21w I Bayonet long life
Pilot lamp
I 12V 5W I Capless long life
Headlamp
I 12v55w I Halogen HI
High mounted stop lamp (where fitted). 12v Capless long life
Roof console central courtesy lamp
12V 5W Capless long life.
Roof console reading lamp
12V 6W Capless
Luggage compartment lamp
12V 5W Capless long life
License plate lamp 12V 5W Festoon
Rear turn indicator
12v 21w Bayonet yellow long
Rear quarter courtesy lamp (lower section)
12V 5W Capless long life
Rear quarter reading lamp (upper section) 12V 6W Capless
Back
-up lamp 12v 21w Bayonet long life
Stop /Tail lamp
Sun visor vanity mirror lamp
12v 1,2w Capless 286
Tail lamp 12V 5W Bayonet long life
5X5W
12V 21V 5W Twin filament bayonet long life
Indicator bulbs
Bulb Designation Holder Colour Rating
Exhaust temperature warning indicator bulb Orange 12,5V 1,2W
Low oil pressure indicator bulb
Orange 12,5V 1,2W
Seat belt warning indicator bulb
Orange 12,5V 1,2W
Boot open warning indicator bulb
Orange 12,5V 1,2W
Door open warning indicator bulb
Orange 12,5V 1,2W
Coolant level warning indicator bulb
Orange 12,5V 1,2W
Air bag fault indicator bulb Orange 12,5V 1,2W
Parking brake 'on' indicator bulb Orange 12,5V 1,2W
Brake system warning indicator bulb Orange 12,5V 1,2W
Main beam 'on' indicator bulb
Orange 12,5V 1,2W
Right turn indicator bulb Orange 12,5V 1,2W
LCD illumination bulb (right)
Orange 12,5V 1,2W
LCD illumination bulb (left) Orange 12,5V 1,2W
Left turn indicator bulb
Orange 12,5V 1,2W
Traction control 'off indicator bulb
Orange 12,5V 1,2W
Transmission sport mode indicator bulb
Orange 12,5V 1,2W
Charging fault warning bulb
Orange 12,5V 1,2W
Check engine warning indicator bulb Orange 12,5V 1,2W
0
0
0
X300 VSM Issue 1 August 1994 AI-95MY 12