1994 JAGUAR XJ6 transmission

Pomrtrain Automatic Transmission (V12 & AJ16 Supercharged)
8.2.22 MANUAL DETENT SPRING, RENEW
SRO 44.26.10
9 Open the hood and fit a suitable fender cover.
. Raise the vehicle on a ramp.
. Drain the transmission lubrication system, see Sub-sec-
. Remove the fluid pan, see Subsection 8.2.14 (4,OL SC) or
. Remove the fluid filter, see Subsection 8.2.18.
. Select 'P (Park) and ensure that the pawl is engaged.
Release and remove the manual valve detent spring and
Remove the detent spring assembly and place aside.
. Clean the relevant parts.
Fit a new detent spring assembly to the valve body.
Fit but do not fully tighten the detent spring assembly to
the valve body securing bolts.
. Align the detent spring tocentralize the roller with the det- ent lever in the 'P' (Park) position.
. Check that in 'N' (Neutral), the shift lever is properly in
position. It is essential that the detent spring within the
transmission unit dictates to the shift lever and not the
other way around.
Finally tighten the detent spring assembly to valve body
securing bo
I ts .
(4,OL SC AND 6,011
tion 8.2.13.
Sub
-section 8.2.15 (6,OL).
roller assembly to valve body securing bolts.
. Refit the fluid filter, see Subsection 8.2.18.
Refit the fluid pan, see Subsection 8.2.14 (4,OL SC) or
. Lower the vehicle on the ramp.
. Refill the transmission unit with fluid, see Subsection 8.2.13.
. Remove the fender cover and close the hood.
Sub
-section
8.2.15 (6,OL).
X300 VSM 23 Issue 1 August 1994

may include:
0
0
Loose or worn wheel bearings.
Loose or worn suspensions or steering components.
0 Worn or damaged drive shaft slip yoke joint.
0 Front disc rotor runout.
o Loose engine or transmission supports.
0 Driveline alignment.
0 Engine driven accessories.
Suspension Systems
11.4 DIAGNOSIS AND TESTING
' 11.4.1 Tire Wear
Tires should be inspected as abnormal or excessive wear may becaused by incorrect wheel alignment, wheelbire im- balance, or incorrect tire pressure.
1 1.4.2 vibration and Roughness
Vibration, roughness, and shimmy conditions may be caused by excessive tire or wheel runout, worn or cupped tires,
or wheel and tire unbalance.
Most of these conditions are due to irregularities in the road surface, hence driving the vehicle on different types of
road surface will often indicate the cause of the condition.
Do not automatically suspect the tires when attempting to diagnose a vibration concern as other sources of vibration
Before investigating any other vibration concerns,
a roaG &est and a customer inter\,.dw (if possible) should be carried
out. This can provide much of the information needed to find the source of vibration.
Drive the vehicle on a road that is preferably smooth and free of undulation and
if vibration is apparent note, the speed at which thevibration occurs, whattype of vibration occurs in each speed range (mechanical or audible), howthevibra- tion is affected by changes in vehicle speed , engine speed and engine torque, and the type of vibration sensitivity
(torque sensitive, vehicle speed sensitive, or speed sensitive).
Some of the condition terms used when describing sources of vibration are explained as follows:
0 Torque Sensitive
This condition can be improved or worsened by accelerating, decelerating, coasting, maintaining
a steady
vehicle speed and application of engine torque.
0 Vehicle Speed Sensitive
This means that the vibration always occurs at the same vehicle speed and is not affected by engine torque,
engine rpm, or transmission gear selection.
B
0 Engine Speed Sensitive
This means that the vibration occurs
at varying vehicle speeds when a different transmission gear is selected.
It can sometimes be isolated by increasing or decreasing engine speed with the transmission in 'NEUTRAL', or
by stall testing with the engine in gear. If the condition is enginesensitive, the condition is not related to tires.
If the road tests indicates that the vibration is related to the tires or wheels,use a 'lire Wear Diagnosis Chart' to
investigate the cause of concern. Should the road test indicate that there is tire whine, but noshake or vibration,
the noise originates from the contact between the tire and the road surface.
X300 VSM 3 Issue 1 August 1994

Brakes (e#
12.1.7. Parking Brake
J70 293
W
1. Parking brake lever 2. Front cable 3. Relay lever 4. Driveshaft securing bracket 5. Intermediate cable 6. Cable equalizer
7. In-line cable connector 8. Rear cable RH 9. Rear cable LH
10. Parking brake switch and harness 11. Parking brake warning lamp
Fig.
1 Parking Brake Layout
All vehicles are fitted with identical parking brake systems.
When the parking brake lever
is operated, the cable system applies equal force to both RH and LH brakeshoe expander
assemblies. The brake shoes expand and press against the hub assembly, locking the rear wheels.
The handbrake lever, ratchet assembly and warning
light switch (item 1) are mounted on the transmission tunnel by means of threeflanged screws a blanking plate and gasket. The front cable (item 2) is connected to the relay lever (item 3) which is mounted on the driveshaft securing bracket (item 4). The relay lever operates the intermediate cable (item 5) which incorporates an adjusting screw to allow cable tension to be adjusted. The intermediate cable operates the
equalizer which ensures that equal force is applied to RH and LH parking brakesvia rearcable RH (item 8) and rear cable
LH (item 9). The rear cables are adjustable to allow cable tension to be adjusted.
The park brake switch (item 10) latches when the lever
is operated and lights the parking brake warning light (item 11 mounted in the instrument panel.
X300 VSM Issue 1 August 1994

Brakes
The pressure at the inlet valves corresponds to the opening pressure of the relief valve (item 15) incorporated in the
isolation valve. Excess brake fluid is drained to the suction side of the pump via the relief valve and returns either to
the TMC secondary circuit and on to the
fluid reservoir, or is directly drawn on by the pump.
As soon as the spinning wheel has been braked down into the normal range of wheel spin, the NO valves (items
16 or 17) close to prevent any further increase in brake pressure. Depending upon the acceleration of the wheel, the NC
valve (item
20 or 21) may open to decrease thesecondary circuit brake pressure. NCvalves (item 17 or 18) may remain
closed in orderto achieve a brake pressure holding phase. If the pressure in the secondarycircuit needs to be increased
again, the NC valve closes again (if open) and the NO valve opens, diverting the necessary volume flow. This control
action, keeps the wheel in the range of optimum slip until the spinning tendency ceases.
The NO isolation valve
(14) remains closed throughout the traction control cycle.
An actuation of the brake, sensed by the control module, causes the traction control mode to be terminated and the
isolation valve (item
14) to be opened. The TMC pressure simultaneously closes the hydraulic inlet valve (item 13) so that the pump can no longer draw fluid from it. The ABS / TC CM now operates in normal ABS mode.
m: When traction control is initiated, speed control is deactivated (if in operation) and requires re-setting after
the traction control mode has terminated. Gear shift is inhibited on automatic transmission vehicles; no down- shifts are allowed and upshifts occur at 4800 RPM.
X300 VSM 15 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

86.52.01
86.91 -83
19.75.21
86.80.24
Universal garage door opener
Security
& Locking Control Module
(SLCM)
Sunroof
Mirror memory control
Seat
/ Mirror Memory (Passenger.)
Speed control
Air conditioning
(NCCM)
Transmission control
Engine Management
BPU (Body Processor Unit)
ABS (Anti
-lock Braking System &
Traction Control (where fitted).
(ABS/TC CM)
Bulb failure
Rear
Front
I Power steering
I Column / mirror ECM
Reader exciter
Location
Roof console panel
LH side upper wheel arch, inside the
trunk below fuel filler pipe
Roof console panel.
Mounted inside driver's
& passenger's
seat.
Behind passenger knee bolster.
RH side of air conditioning unit.
Behind passenger knee bolster.
RH side footwell in front of 'A' post
behind cover.
Behind passenger knee bolster.
Engine compartment below
anti-lock
braking system modulator.
Trunk inside electrical carrier box,
Engine compartment behind each
headlamp assembly.
LH side footwell on
'A' post, behind cover.
On the side of steering column.
Around the lock barrel of steering
column.
Behind passenger knee bolster below the
airbag module.
Behind bumper, LHS of vehicle
Numb
11
13
10
9
14
2
RHD
20 LHD
1
16
RHD
(1 2&6)
7 LHD
(12&16)
6 (12&16)
19 RHD
3 LHD
18 RHD
4 RHD
12
22
& 24
17 5
8
15 RHD
23 LHD
21
X300 VSM 39 issue 1 August 1994

Snecif icat ion W -I- ..........
e
0
CON TENTS
Title Page
Specification. 1995 Model Year Vehicles ................................................................... 1
EngineManagementSystem ........................................................................\
. 1
Cooling System ........................................................................\
............ 7
Fuelsystem Pump ........................................................................\
......... 7
Clutch ........................................................................\
................... 7
Manual Transmission Ratios ........................................................................\
. 1
Automatic Transmission Ratios ....................................................................... \
2
Final Drive Unit Ratios ........................................................................\
..... 2
Climate Control System ........................................................................\
..... 2
Braking System ........................................................................\
............ 3
Steering&Suspension ........................................................................\
...... 4
Electrical Equipment ........................................................................\
....... 5
Lubricants & Fluids ........................................................................\
......... 7
Vehicle Weights ........................................................................\
........... 9
Tires ........................................................................\
.................... 10
Snowchains ........................................................................\
............. 17
Bulbs ........................................................................\
................... 12
Fuses ........................................................................\
................... 14
Issue 1 August 1994 AI-95MY i X300 VSM

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