1994 JAGUAR XJ6 engine

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

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

Key to Fig. 1, Battery Power Distribution Cables, page 22.
Rear heel board 1 Fuse box power lead 1
Terminal to terminal post link lead 2
Engine bay 1 fuse box power cable LH 3
Starter to alternator cable 4
Engine bay 1 fuse box power cable RH 5
Batt.ry Power Distribution Cabb Numb
1 Starter cable I 6 I
Battery positive extension cable 7
Battery positive cable 8
Battery negative cable 9
Trunk fuse box power cable 10

IT E I ectr ical
15.10.2 Main Harnm, General Description
1 2 3 4 56
7
M6 1720
Fig.1 Main Harnesses
Fig.
1 shows a plan view of the main harness runs inside the trunk, the passenger compartment and the engine bay.
The illustration is to be read in conjunction with the following table.
To avoid any accidents such as electric shocks,
always disconnect the battery negative lead from the battery negative terminal before disconnecting any of the listed
cables.
e
0
0
0
Issue 1 August 1994 24 X300 VSM

rl Electrical
'5.10.3 Link /farnest?$, General Description
Fig. 1 Link Harnesses
Fig.
1 shows a plan view of the link harness runs inside the trunk, the passenger compartment and the engine bay.
The illustration is to be read in conjunction with the following table.
To avoid any accidents such as electric shocks,
always disconnect the battery negative lead from the battery negative terminal before disconnecting any of the listed
cables.

I3 Electrical
'5.10.4 Hamess Connecton, General Descriptbn
21
1 23 4 7 09
10
Fig. 1 Harness Connectors
Fig.
1 shows a plan view of the harness connectors physically linking all the harnesses located in the trunk, the passen- ger compartment and the engine bay.
The illustration
is to be read in conjunction with the following table. To avoid any accidents such as electric shocks,
always disconnect the battery negative lead from the battery negative terminal before disconnecting any of the listed
cables.

15.11 MOTORS & SOLENOIDS ~
5.1 1.1 General
Description
Electrical
I# b
Fig. 1 Motors & Solenoids
-
1695
Fig. 1 shows a plan view of all motors located inside the trunk, the passenger compartment and the engine bay. The
motors drive various devices to perform certain functions such wipe / wash operations, window lift operations, seat
operations etc.
In order to carry out remove and refit operations, the annotated illustration is to be read in conjunction with the table
shown on the following page. This lists
all the motors and solenoids.
Some motors can be accessed by removing the various trims, the carpet, or carpet sections, other can be located
through carrying out
a visual inspection around the engine bay, the cab and the trunk.
To avoid any accidents such as electric shocks, always disconnect the battery negative lead from the battery negative
terminal before disconnecting any of the listed cables.
Issue 1 August 1994 30 X300 VSM