1994 JAGUAR XJ6 water pump

Climate Control Systems
lnsufficent Cooling
0 Sluggish blower motor(s).
0 Restricted blower inlet or outlet passage
0 Blocked or partially restricted condenser matrix or fins.
0 Blocked or partially restricted evaporator matrix.
0 Blocked or partially restricted filter in the receiver drier.
0 Blocked or partially restricted expansion valve.
0 Partially collapsed flexible pipe.
0 Expansion valve temperature sensor faulty (this sensor is integral with valve and is not serviceable).
0 Excessive moisture in the system.
0 Air in the system.
0 Low refrigerant charge - possible code 23.
0 Compressor clutch slipping.
0 Blower flaps or distribution vents closed or partially seized - possible codes 41 or 46.
0 Coolant flow valve not closed.
0 Evaporator sensor incorrectly positioned
m: Should a leakor low refrigerant be established as the cause of /NSUff/C/€NTCOOL/NG,followthe procedures
Recovery / Recycle / Recharge, this section, and observe all refrigerant and oil handling instructions.
lntermiffent Cooling
0 Is the electrical circuit to the compressor clutch consistent?
0 Is the electrical circuit to the blower motor(s) consistent?
0 Compressor clutch slipping?
0 Motorized in-car aspirator or evaporator temperature sensor faulty, causing temperature variations - possible
codes 11 or 13.
0 Blocked or partially restricted evaporator or condenser.
Noisy System
0 Loose or damaged compressor drive belt.
0 Loose or damaged compressor mountings.
0 Compressor oil level low, look for evidence of leakage.
0 Compressor damage caused by low oil level or internal debris.
0 Blower motor(s) noisy.
0 Excessive refrigerant charge, witnessed by vibration and 'thumping' in the high pressure line (may be indicated
by high HIGH & high LOW side pressures).
0 Low refrigerant charge causing 'hissing' at the expansion valve (may be indicated by low HIGH side pressure).
0 Excessive moisture in the system causing expansion valve noise.
0 Air-lock in water pump*.
lnsufficent Heating
0 Coolant flow valve stuck in the closed position.
0 Motorized in-car aspirator seized.
0 Cool air by-pass damper stuck or seized - possible code 43.
0 Blocked or restricted blower inlet or outlet.
0 Low coolant level.
0 Blower fan speed low.
0 Coolant thermostat faulty or seized open.
0 Water pump inoperative or blocked
0 Air-lock in matrix*.
m: * Please see Sections 4.1 and 4.2 for specific coolant fill / bleed procedures.
Electrical faults may be more rapidly traced using
(JDE), please refer to the (EDM).
Issue 1 August 1994 16 X300 VSM

Climate Control Systems
No heat
One vent failing to open
/ close
Poor airflow
14.11.3 Associated Faults
Other symptoms that may exist without storing fault codes:
Airlock in system.
Electric water
pump inoperative
Coolant flow valve stuck closed
Faulty engine coolant thermostat
Broken linkage.
Blower motors
- incorrect operation
14.11.4 Panel Communication Check
Action Result
Panel communication
with FACE, FOOT & FACE, FOOT,
SCREEN
& FOOT, DEFROST, RECIRC lines checked - State lamps will illuminate if all is OK. Unlit state lamp
means continuity fault for that specific link. See EDM
for
full check.
0
0
0
Issue 1 August 1994 18 X300 VSM

15.6
15.6.1
The single windscreen wiper blade is controlled by a windscreen wiper/washer switch located on the right-hand side
of the steering column switchgear (see Fig.
1).
POWER WASH & SCREEN WASH/ WlPE
Windscreen Washers & Wipers, General Description
The windscreen wiper motor, part of the wiper motor
assembly operates at slow or fast speeds and drives the
lever assembly, a single arm and blade via a crank.
On
V12 engined vehicles the wiper motor assembly is
mounted to the front of the bulkhead with the motor
protruding into the plenum chamber, whilst on AJ16 engined vehicles the wiper motor assembly is mounted into
the same position, but with the motor protruding into the
engine compartment.
For wipe and wash operation
a mixture of water and special
'Jaguar Windscreen Fluid' is drawn from the PVC reservoir
assembly by
two electrically controlled pumps and is then
distributed via flexible feeder hoses interconnected using
'TEE' pieces to the screen wash jets and to heated power
wash jets (where fitted). The ends of power wash hoses are
fitted with 'quick
fit' fluid connectors.
The
two pumps, one for screen wash and one for headlamp
power wash are externally fitted to the reservoir located at
the front right
-hand side of the engine compartment.
Contained within the reservoirs pull-up neckis a serviceable
filter.
The screen wash jets with independently adjustable
eyeballs are mounted on the plenum chamber finisher and
the temperature of the fluid passing through the jets is
controlled from an ambient temperature sensor fitted near
the inlet of the right
-hand side air duct. Fig.
1
The
fluid temperature for each of the headlamp wipe wash operation is controlled by self regulating, heated power
wash jets mounted on to either side of the bumper.
Each powerwash jet is protected by
a cover supplied with an integral cover-to-bumperseal. The cover snap fixes into
the bumper.
15.6.2
This switch only operates with the ignition switch in position '11' and has the following functions:
windscreen Wiper and Washer Switch
Position 0 The wind screen wiper is switched 'OFF' and parked.
Position 1: Normal speed wiper operation is obtained by pushing the switch lever up one position.
Position 2: High speed wiper operation is obtained by pushing the switch lever fully up.
Position D: To obtain intermittent wiper operation the switch lever is pushed down and released.
The delay period will vary with vehicle speed. To cancel the function repeat the procedure.
15.6.2.1 Single Wipe Operation
To obtain a single sweep of the wiper blade, the lever is pulled towards the steering wheel and released.
W The intermittenmick wipe operations are both at slow speed and they are controlled by a Central Control
Module (CCM), which also controls the headlamp power wash operation.
Issue 1 August 1994 X300 VSM

Black
Black
Black All
models
All Models
All Models
Black
Black All
Models
All Models
Black/
White Stripe
Black/
White Stripe
Black Non
Aircon.
Models
only
Non Power
Wash Models
only
Optional
0 Key to Fig. 1, hgine Compartment Relays, page 14.
Number v12 Color
All Models
SRO
B6.55.04
Rdaw
Horn
Location
Engine
compartment,
inside the left
hand side fuse box.
Engine
compartment,
behind left hand head
lamp assembly.
see starter
motor
solenoid. All
Models
1 ~~
All
Models 5 Starter Motor
Solenoid
4 All Models
All Models 18.30.34 Air-conditionin
g Water Pump
Wiper Motor
On
/Off
2 see starter
motor
solenoid.
see starter
motor
solenoid. All
Models
3 Wiper Fast /
Slow
18.30.71 Engine
compartment, behind right
hand head
lamp assembly. 8 EMS Engine
Management
System
Control
Black
I
All Models 9 Ignition Coil
PI Main Relay see
EMS
control.
see EMS
control. Black
I
All
Models 8
Air Pump 7 see EMS
control.
see EMS
control. Black
Air Injection
Black Air Con
- Model Air
Injection
only
All Models
18.30.34
86.55.08 Air
Conditioning
Compressor
Clutch
Relay Case
Engine
compartment,
on the right
hand side inner
wing valance.
Relay
Case Non Power
Wash
Models
only
11
10
12
Power Wash
Screen Wash Optional
All Models
All Models
Black
All Models
Ignition Relay
Engine
compartment,
inside
right
hand fuse box.
X300 VSM 33 Issue 1 August 1994

SPECIFICATION - 1995 MODEL YEAR VEHICLES
Engine See relevant engine service manual
Engine Management System
VI2 ............................................................... Nippondenso
6cyl. .............................................................. LucasGEMS
Cooling System
Water pump
type
............................................................... Centrifugal
Cooling fans
- 6 cyl. ................................................ Two electric fans controlled by
Cooling fans
- VI2 ................................................. One engine driven fan and two
Cooling system control
............................................. Thermostat (two on V12)
Thermostat opening temperature .................................... 88OC
Fully open at ....................................................... 93,5 to 96OC
Filler cap pressure rating ........................................... 1,2 bar
drive
.............................................................. Belt
temperature sensor in radiator
electric fans controlled by
temperature sensor
in radiator
Fuel System Pump
one fitted on 6 cyl. (3.2 Liter and 4.0 Liter normally aspirated)
two fitted on 6
cyl. (4.0 Liter supercharged) and VI2
Electrical, module type, fitted in the tank. Integral 70 micron filter.
Make
.............................................................. Nippondenso
Fuel pressure (nominal)
............................................ 3,O bar
Second
pump switches at:
Pump
type
......................................................... Regenerative turbine
Fuel pressure (supercharged)
....................................... 3,7 bar max.
4.0 Liter supercharged ........................................... in at 4000 RPM
out at 3200 RPM
VI2 ............................................................ load sensitiveswitching
Clutch
Plate diameter .....................................................
Clutch hydraulic fluid ............................................... DOT 4
280mm single plate, LUK
Manual Transmission Ratios (Gefragl
First gear .......................................................... 3,553:l
Second gear ....................................................... 2,041: 1
Third gear ......................................................... 1,400 : 1
Fourth gear
........................................................ 1,000 : 1
Fifth gear
.......................................................... 0,755:l
Reverse ........................................................... 3,553: 1
Issue 1 August 1994 X300 VSM AI-95MY 1

Specification
w IfrnrnJ
FUSES
The following tables list all fuses (in their locations) used in the vehicle.
Engine Bay Fuse Box - left-hand side
Fuse No. Fuse Colour Code Value Circuit
lamps)
F1 Clear 25 Heated front screen - right-hand side (where fitted)
F2 Red 10 Main beam headlamp - left-hand side
F3 Clear 25 Starter solenoid
F4 Red 10 Lowered beam headlamp - left-hand side
F5 Red 10 Side light - front left-hand side
Turn indicator
-front left-hand side
Side repeater flasher
- left-hand side
F6 Yellow 20 Windshield wiper system
I F8 I Light Blue
I Not used
F9 - - Not used
- - F7
15
Water pump (air conditioning) I - -
-l
X300 VSM Issue 1 August 1994 AI-95MY 14

0
Engine Bay Fuse Box - right-hand side
Fuse No. Fuse Colour Code
- F1
F2 Red
F3
F4 Red
F5 Red
-
F6 Tan
F7 Clear
F8 Red
F9 -
FIO Tan
F12 Red
F13 Red
F14 Red F15
-
F16 Red
F17 Light Green
F18 Red
Value
(amps)
10
10
10
5
25
10
-
5
20
10
10
10
10
30
10
Circuit
Not used
Main beam headlamp
- right-hand side
Not used
Lowered beam
headlamD - riaht-hand side ."
Side light -front right-hand side
Turn indicator
-front right-hand side
Side repeater flasher
- right-hand side
Engine control module
(ECM)
Air pump (6 cyl. - where fitted)
Ignition coils
(VIZ)
Air conditioning clutch
Not used
Generator
Front lighting control module
- right-hand
Air conditioning clutch
Windshield wash
J headlamp power wash heaters and relays
Engine management system relay supply
Injectors
Engine management system
Starter relay Ignition coil sensing and air pump relay (6
cyl.)
Fuel injection relay
Engine management sensing
(VIZ)
Windshield washer pump
Lambda heaters
Idle speed control valve
Not used
Air pump control
Solenoid vacuum valve
(VIZ)
Water pump (supercharged)
Headlamp power wash pump
Front fog lamp
- right-hand side (where fitted)
0
0
Issue 1 August 1994 X300 VSM AI-95MY 15

(amps)
F1 Light Blue 15
F3 Light Blue 15
F4 Light Blue 15
F5 Tan 5
F6 F7 Light Green 30
- -
F8 Red 10
F9 Clear 25
FIO Tan 5
F11 Yellow 20 0
Light Green
Light Blue
F18 Light Blue
0'
I
Circuit
Central door locking
Deadlocking (where fitted)
Transmission interlock relay
Key
-switch solenoid relay
Center console switch pack
Interior lighting switch
Seat motors
- left-hand side
Seat motors
- left-hand side
Automatic transmission control module
(TCM)
Not used
Anti
-lock braking system / traction control control module (ABS /
TC CM)
Interior lamps
Luggage compartment lamps
Seat heaters (where fitted)
Data link connector
Fuel pump relay coil
Air conditioning blower motor
- right-hand
Air conditioning
Seat control modules
(SCMs)
Mirror heaters relay
Power assisted steering
Not used
Mirrors, Heated rear window, Cigar lighter
Rear lighting control module
High mounted stop lamp (where fitted)
Window lift (front and rear)
-left-hand side
Windshield wiper system Front screen heaters
Front lighting control module
- left-hand
Water pump relay
Headlamp levelling (where fitted)
Clock
Airbag
Sunroof (where fitted)
Issue 1 August 1994 AI-95MY 17 X300 VSM