1994 JAGUAR XJ6 tow

Automatic Transmission (V12 & AJl6 Supercharged) Pomrtrain
8.2.1 GENERAL DESCRIPTION
This section provides information relating to the Powertrain 4L80-E transmissions fitted to the 4,O liter supercharged
engine (4,OL SC) and to the 6,O liter engine (6,OL).
The Powertrain 4L80-E is a four-speed, high torque capacity, electronically controlled automatic transmission, which
comprises a torque converter with lock-up direct drive clutch and three planetary gear sets. Five multiple diskclutches,
one intermediate sprag clutch assembly, two roller clutch assemblies and two band assemblies provide the drive el- ements necessary for correct sequential gear engagement and operation.
The torque converter containing
a pump, a turbine (rotor), a stator assembly, and a clutch pressure disksplined to the
turbine, acts as a fluid coupling for smooth torque transmission from the engine. The converter also supplies addi- tional torque multiplication when necessary, and the torque converter clutch (TCC) pressure disk provides a mechan- ical direct drive or 'lock-up' above a certain speed in top gear for greater fuel economy.
Gearshift operations are controlled from the Transmission Control Module (TCM), which governs the electronically
controlled valve body situated within the transmission.
Three planetary gear sets provide reverse and the four forward ratios, the changing of which is fully automatic in rela
- tion to load, vehicle speed and throttle opening. The Transmission Control Module receives and integrates various ve- hicle sensor input signals, and transmits operating signals to the solenoids located in the control valve assembly.
These solenoids govern the transmission operating pressures, up-shift and down-shift gear selection patterns and
also the torque converter clutch operation by pulse width modulated control.
8.2.1.1 Gear Ranges
Selectable gear positions are: P - Park, R - Reverse, N - Neutral, D - Drive, 3, 2.
P - Park position of the shift lever provides a mechanical locking of the output shaft of the transmission, and as such,
must only be engaged when the the vehicle is stationary. In addition, and for
extra safety, the handbrake should also
be applied. It is necessary to have the ignition ON and the footbrake applied to move the shift lever from the Park
position. For ignition key removal the shift lever must be in the Park position. The engine can be started in the Park
position.
R - Reverse enables the vehicle to be operated in a rearwards direction. The engine cannot be started in the Reverse
position.
N
-Neutral position enables the engine to be started and operated without driving the vehicle. It also allows the vehicle
to be moved manually for access, ie for removal of the propeller shaft.
D
-Drive position allows the automatic selection of all four forward gear ratios during normal driving conditions for
maximum efficiency and fuel economy. On acceleration, down-shifts are obtained by depressing the accelerator pedal
or by manual selection. The engine cannot be started in this position.
3
- Manual third position allows automatic operation of the three lower gear ratios but inhibits selection of the fourth
ratio. This position is used for towing a trailer or negotiating hilly terrain when greater engine braking control is re- quired. The engine cannot be started in this position.
2 - Manual second position allows automatic operation of the two lower gear ratios but inhibits selection of the third
and fourth ratios. This position is used for heavy traffic congestion or negotiating hilly terrain when even greater en
- gine braking control is required than is provided by manual third. This ratio may be selected at any vehicle speed - even if the transmission is in third or fourth ratio, the transmission will immediately down-shift to second gear pro- vided the vehicle speed is below 137 km / h (85 mile / h). The engine cannot be started in this position.
N.g!b: With the Performance Mode switch in the NORMAL position, the vehicle will pull away in second gear. How- ever, if more than 75 per cent of throttle is applied when the vehicle speed is between zero and 13 km/ h (8 mile / h), then first gear will be selected. From 13 to 61 km/ h (8 to 38 mile/ h) first gear is obtainable by 'kick-down'.
In 'sport' mode thevehicle pulls away in first gear and the transmission operatesfully in all four forward gears.
X300 VSM 1 Issue 1 August 1994

12.6 REAR WHEEL SPEED SENSOR - RENEW
SRO
70.60.04
. Drive the vehicle onto a ramp or raise the back and support
on two stands.
. Cut and remove the ratchet strap securing the speed sen- sor harness to the brake hose.
. Undo and remove the speed sensor to hub carrier secur- ing bolt (Fig. 1).
Remove the speed sensor from the hub carrier and allow
it to hang free, forward of the 'A' frame.
Open both rear doors and displace the rear seat cushion
from the seat pan brackets. Reposition the rear seat
cushion forwards.
9 Push the seat belts/ buckles through the seat cushion slots
and remove the rear seat cushion from the vehicle.
. Displace the RH side of the seat pan sound proofing (1 Fig. 2) to gain access to the speed sensor harness (2 Fig. 2).
9 Displace the speed sensor harness grommet (3 Fig. 2) from the seat pan aperture.
. Feed the speed sensor harness through the seat pan aper- ture and disconnect the multi-plug (4 Fig. 2).
9 Position the new speed sensor harness and connect the
multi-plug.
. Feed the speed sensor harness through the seat pan aper- ture to hang free below the vehicle.
. Refit and fully seat the speed sensor harness grommet to
the seat pan aperture.
Reposition theseat pan sound proofing to its original posi- tion.
Position the rear seat cushion and feed the seat belt / buckles through the slots.
Locate the rear seat cushion into the seat pan brackets (5 Fig. 2).
. Stow the seat belts / buckles.
. Position the speed sensor harness rearwards over the 'A'
Fit and tighten the speed sensor to hub carrier securing
Secure the speed sensor harness to the brake hose using
frame
and locate into the hub carrier.
bolt.
a ratchet strap. Trim the ratchet strap. Fig.
1
Fig. 2
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13.2.18 Fuel Filler Flap, Description
The fuel filler flap comprises a hinged flap attached to the body decking panel by two M5 nuts; the flap incorporates
a rubber buffer, snap
-in striker, hinge spring and the fuel cap stowage magnet. The rubber fuel bowl moulding is at- tached via a steel armature to the body reinforcement panel by five M5 nuts and is retained at the filler neck by a clip.
The mating drain tube is fitted with an internal filter.
The fuel filler flap latch mechanism attached
tothe fuel bowl armature bytwo M5 nuts, includes a locking pin and actua- tor which are both serviceable items. The latch actuator operates independently from the central locking system; it is
driven directly
by the security and locking control module. Locking of the fuel filler flap is achieved only by operation
of the key or by the remote rf transmitter.
13.2.19 Filler Flap and Hinge, Renew
. Disconnect vehicle battery ground lead.
With filler cap open, remove hinge securing screws, fuel
. To refit, carry out reversal of the above procedure.
filler cap
and remove flap and hinge assembly.
13.2.20 Filler Cap Retention Magnet, Renew
. With filler flap open, use a blunt flat bladed implement and
CAUTION: Take care not to damage paintwork.
. To refit, carry out reversal of the above procedure.
Disconnect
vehicle battery ground lead.
remove the magnet assembly.
13.2.21 Filler Flap latching Assembly, Renew
. Disconnect vehicle battery ground lead.
. Depress the latching assembly retaining nut and remove
CAUTION: Take care not to damage paintwork.
. To refit, carry out reversal of the above procedure.
the
assembly.
1. Hingedflap 2. Striker 3. Hinge spring 4. Stowage magnet 5. Fuelbowl
Fig. 1 Fuel Filler Flap
X300 VSM Issue 1 August 1994 8
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Body Components & Trim a
13.7.4
Localized stains caused by accidental spillage may be one of three types:
0 Water based stainscaused byfoodstuffs,starches, sugars, soft drinks,fruit stains, washable inketc. These stains
adhere readily to the pile and do not respond to vacuum cleaning. They are best removed immediately using
the procedure detailed below.
0 Oil /grease based stains caused by spillage or other contamination by butter, grease, hand cream, ball point pen
ink, crayon, lipstick etc.
0 A combination of both these types.
Spot Cleaning - Localized Stains
To remove water based stains:
. Blot up liquids and /or scrape off semi-solids using a spatula.
. Sponge the affected area with clean luke-warm water. Use a clean, damp, undyed, cotton cloth to absorb as much
. If the stain persists, apply a suitable carpet shampoo solution made up to the manufacturers instructions, again work-
= Rinse with clean, warm water, taking care not to over-wet the carpet.
Absorb excess moisture by laying dry, undyed cloths or white paper towels over the moist carpet under light pres-
. When the carpet is thoroughly dry, vacuum clean the area to lift the carpet pile.
CAUTION: When liquids are applied to the pile, use only a clean cloth or sponge. Do not apply liquids directly to the
carpet - when attempting to remove stains, blot the pile as heavy rubbing can destroy the yarn structure of the carpet.
of the moisture as possible, working from the edge to the centre of the stain.
ing from the edge to the centre of the stain.
sure; replace when necessary.
To remove oil /grease based stains:
. Using a suitable aerosol containing solvent loaded with absorbent powder, spray the affected areas of the carpet.
= Allow the solvent to evaporate and remove the powder containing the grease by using a vacuum cleaner or brush.
m:
CAUTION: Solvents must only be used in well-ventilated areas where naked lights and smoking are prohibited.
The solvent loosens the grease from the fibre and the powder then absorbs the grease-carrying solvent.
Neat solvent, eg dry cleaning
fluid, may be used, but should be used sparingly from a clean white cloth.
To remove stains which are a combination of oil and water based contamination (usually resulting from food or drink):
. Treat combination stains as for water based stains.
. Allow to dry out.
. Treat as for grease based stains.
Issue 1 August 1994 46 X300 VSM

Body Components & Trim
13.8.5
Renew
Front Seaf Head Restraint (Power Operated),
. Recline the seat to give access to the head restraint from
. Disengage the head restraint from its retainers with a
= To refit, carry out reversal of the above procedure, ensur-
the rear.
sharp upward
pull.
ing that the restraint is fully locked in position.
13.8.6 Rear Seaf Cushion, Renew
. Release the seat cushion quick release fittings.
. Remove the seat cushion from the vehicle.
To refit, carry out reversal of the above procedure.
13.8.7 Rear Seat Squab, Renew
. Release the rear seat cushion quick release fittings and re-
. Release the rear squab fixings and remove the squab.
. Move the rear seat belts aside and remove the squab as-
. Remove the armrest from the squab assembly.
. Remove the seat belt stowage pocket.
To refit, carry out reversal of the above procedure.
move
the cushion.
sembly from the vehicle.
Issue 1 August 1994 X300 VSM 49

Body Components & Trim .Birpa,
13.8.8 Seat Belts, Description
Three types of seat belt are used: tear loop inertia seat belts used on front seats in association with driver and passenger
airbags, standard inertia types fitted to the outer, rear seats and static belts fitted to the
center, rear seat.
Front passenger seat belts are fitted
with tear loop buckles while drivers seat belts have the tear loop fitted to the out- board anchorage. The front seat belts are provided with height adjuster units which are attached one to each of the
'B' posts.
13.8.9
Where emergency locking retractorlautomatic locking retractor seat belts are provided, the belts have two operating
modes:
1.
2.
The inertia reel mode operates to allowthe occupant some freedom of torso movement. The static reel mode prevents
belt payout and thereby does not allow the occupant freedom of torso movement. When the seat belt is attached to
a child seat which has its own independent harness, the static mode must be used.
The seat belt defaults to the inertia reel (adult passenger) mode when
in the stowed (fully retracted) position.
To activate the static reel (child seat) mode, pay out the belt to its
full extension. The ratchet mechanism is now en- gaged. When retracting the belt back into the reel, the ratchet operation may be felt. It can be noticed that the belt is
unable to reverse direction.
To revert to the inertia reel mode, pay the belt back into the reel to the stowed position.
Emergency Locking Retractor / Automatic locking Retractor Seat Belts
Inertia reel mode, emergency locking retractor, for adult passengers
Static reel mode, automatic locking retractor, for children
(in child seats).
1. Height adj. to post 7. Static 1 inertia buckle bracket I body 2. Height adj. to belt anchor 8. Tear loop buckle bracket 3. Inertia belt anchor 9. Belt buckle bracket 4. Inertia bracket / body 10. Reel bracket 1 body
5. 11. Belt anchor I body
6. 12. Upper guide I body
Inertia
reel bracket I body
Inertia 1 static buckle bracket I body
Fig.
1 Seat Belt Location and Anchorages
0
0
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Body Components & Trim
13.8.10 Tear loop Seat Belts, Description
The tear loop seat belt (Fig.1) is used to control the rate of forward travel of the occupant towards the deployed airbag
(the airbag is covered in Section 15, Electrical). The tear loop assembly is designed to release additional webbing when
the stitching, which retains the webbing loops, breaks under
a predetermined load. The wires (1 Fig. 1) within the as- sembly have the following functions:
0 To protect the stitching from 'normal' loads such as heavy braking or cornering.
o To control the rate of deployment.
0 To support the extended head following deployment.
When the passenger unit has been activated, the buckle will extend from the shroud and reveal
a warning label (2 Fig. 1); the extent of deployment will depend upon the severity of the load.
-: IF THE LABEL IS VISIBLE AT ALL (3 FIG. 3). THE COMPLETE ASSEMBLY MUST BE RENEWED, AS MUST
ANY SEAT BELT WHICH HAS BEEN WORN IN AN ACCIDENT.
2
Fia. 1 Tear LOOO Seat Belt
X300 VSM 51 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