gearbox JAGUAR X308 1998 2.G User Guide

Conne
ct the scan tool
1
Have the DTC(s) and fr

eeze
frame data been recorded?
Yes GO to H2
H2: CHECK
FOR LOW EXHAUST TEMPERATURE
Chec

k the engine and exhaust
system for correct operation
and normal running temperature
1
Is th
e engine and exhaust system operating correctly and up to
normal running temperature?
Yes GO to H3
No Rectify leaking exhaust manifold / catalyst, general causes of
an over rich mixture and engine cooling system operation and
test the system for correct operation.
GO to H7
H
3: CHECK FOR O2 SENSOR FAILURE
I

gnition switch to position 0
1
Di

sconnect EM024
Bracket on top o

f gearbox or
Bulkhead rear of engine
2
R
un the engine for a period to
warm the sensor and then
maintain a steady speed of approximately 2500 rpm.
3
W
ith EM024 disconnected, measure the voltage between
EM024/001 and EM024/002.
4
Is
the voltage between 600mV and 1.0 Volt?
Yes GO to H4
No Renew O2 sensor. Reconnect plug(s).
GO to H7
H
4: CHECK FOR O2 SENSOR FAILURE

Ex
haust System - Front Muffler4.0L SC V8 - AJ26
Re
mo
val and Installation
Remov
a
l
Installation
1. Ra
ise the vehicle on a ramp.

2. Separate the front muf f
ler flan
ge joints from the downpipe
catalytic converters.
Slac ken t
he flange nuts (left-hand and right-hand sides),
catalytic converter to front muffler.

3. Slacken the clamps (left-ha nd and right-hand sides),
i
ntermediate mufflers to front muffler.
Move both i
n
termediate mufflers rearwards, as far as
possible.
4. Remove the flange nuts (lef t-hand and right-hand sides),
catalytic converter to front muffler.

5. Re
move the bolts which secure th
e front muffler rear mounting
to the rear of the gearbox.
6. Remove the front muffler.
Di
sconnect the front muffler fr
om each downpipe flange.
Di
sconnect the front muffler
from the intermediate
mufflers and remove it.
7. Remove the gasket from each front flange joint.
8. Clean and inspect al l exhaust joints.
1. Fit the front muffler.

F
it the front muffler fully into
the intermediate mufflers.

2. Con
nect the front muffler flanges to the catalytic converters.
F

it a new gasket to each flange.
Con

nect the front muffler flanges to the catalytic
converters; move the front muffler / intermediate
mufflers assembly forwards.
Tigh
ten the flange nuts (left-hand and right-hand sides),
front muffler to catalytic converters.

3. F
it the bolts which secure the front muffler rear mounting to
the rear of the gearbox.

4. Re
position the intermediate mu
fflers to the front muffler to
align the correct referenc e / index indicator ring.
Ti
ghten the clamps (left-han
d and right-hand sides),
intermediate mufflers to front muffler.
5. Lower the ramp.

Seating - Front Seat Recliner Motor
Removal and Installation
Removal
1. WARNING: FOLLOWING DISCONNECTION OF THE
BATTERY A PERIOD OF AT LEAST ONE MINUTE MUST BE
ALLOWED TO ELAPSE BEFORE WORKING ON A FRONT SEAT WITH
A SIDE AIRBAG FITTED.
Remove battery cover and disc onnect ground cable from
battery terminal. Refer to 86,.15.19.
2. Remove front seat and position for access. Refer to 76.70.01.
3. Remove front seat back finisher. Refer to 76.70.09.

4. Release seat squab cover securing clips from frame.

5. Release seat squab cover lower edge retaining strip from
frame.

6. Disconnect recline motor/potentiometer harness multiplug
(white).
7. Remove and discard gearbox RH drive shaft end securing clip.

Installation

8. Using a suitable soft drift, release drive shaft from gearbox and potentiometer.

9. Slacken and remove bolts securi ng potentiometer/gearbox to
seat frame

10. Rotate potentiometer to release it from retaining plate tang.

11. Slacken and remove bolts securing recline motor to seat
frame.
12. Remove recline motor/potentio meter/gearbox assembly from
seat.
1. Position recline motor on seat frame mounting and fit and

tighten securing bolts.
2.
Position potentiometer on gearbox.
3. Engage drive shaft in po tentiometer and gearbox.
4. Install potentiometer retaining plate.
5. Rotate potentiometer to en gage retaining plate tang.
6. Fit and tighten retaining plate/gearbox securing bolts.
7. Fit and fully seat new gearbo x drive shaft securing clip
8. Fit seat cover RH side to seat frame and fully seat securing
clips.
9. Fit seat cover LH side to seat frame and fully seat securing
clips.
10. Fit seat cover to lower frame retaining strip.
11. Position seat for acces and fit seat back finisher. Refer to
76.70.09.
12. Install seat in vehicle. Refer to 76.70.01.
13. Connect ground cable to batt ery terminal and fit battery
cover. Refer to 86.15.15.
14. Motor seat fully forward and fully rearward, checking for
satisfactory operation.
15. Return seat to original position.

Installation



8. Withdraw LH slide from seat motor potentiometer/gearbox
assembly.
1. Fit and fully seat slide to po tentiometer/gearbox assembly.
2. Position motor frame on slide assembly and secure with new
pop rivets.
3. Connect seat cushion tilt motor drive cables.
4. Secure seat harness in clips.
5. Position slide assembly on seat.
6. Fit and align RH seat belt bu ckle mounting bracket between
slide and seat pivot bracket and fit but do not tighten securing
bolts.
7. Fit and align LH seat belt an chor bracket between slide and
seat pivot bracket an d fit but do not tighten securing bolts.
8. Fit but do not tighten RH and LH slide front securing bolts.
9. Finally tighten slide front and rear securing bolts.
10. Fit front seat to vehi cle. Refer to 76.70.01.

16. Slacken and remove bolt securi ng motor/ potentiometer and
gearbox to LH slider and re move LH slider assembly.

17. Release motor/potentiometer an d gearbox harness multiplug
from mounting bracket an d disconnect multiplug.

18. Slacken and remove motor/pote ntiometer to frame securing
bolts.
19. Disconnect RH seat slider gearbox drive cable from
motor/potentiometer.

I
nstallation

20
.
Disconnect drive cable and gearbox assembly from
motor/potentiometer and remo ve motor/potentiometer from
seat.
1. Position motor/potentiometer at seat and connect drive
cable/gearbox assembly
2. Connect RH drive cable to motor.
3. Seat motor/potentiometer on fra me and fit and tighten motor
securing bolts.
4. Align potentiometer with gearbo x and fit and tighten gearbox
securing bolt.
5. Position and fully seat slider assembly to potentiometer and
gearbox.
6. Position motor frame on LH sl ider and secure with new pop
rivets.
7. Connect motor/potentiometer harness multiplug and install in
mounting bracket.
8. Connect seat cushion rearward tilt motor drive cable.
9. Connect seat cushion forwar d tilt motor drive cable.
10. Place seat upright in mounting position.
11. Position RH seat buckle mounting bracket between runner
and seat pivot bracket and fit but do not tighten securing bolt.
12. Position LH seat buckle mounting bracket between runner and
seat pivot bracket an d fit but do not tighten securing bolt.
13. Fit but do not tighten slider front securing bolts.
14. Fit and tighten slider rear securing bolts
15. Tighten slider front securing bolts.
16. Install forward tilt potentiome ter on drive shaft and fit and
fully seat retaining clip.
17. Position seat harness in frame retaining clips.
18. Fit seat harness main multiplug to retaining bracket.
19. Fit seat heater relay to retaining bracket.
20. Connect seat control module harness multiplugs.
21. Connect forward tilt motor harn ess multiplug and fit multiplug
in retaining bracket.
22. Connect rearward tilt motor harness multiplug and fit
multiplug in retaining bracket.
23. Install seat in vehicle. Refer to 76.70.01.
24. Connect ground cable to batt ery terminal and fit battery
cover. Refer to 86.15.15.
25. Power seat fully forward and rearward ensuring satisfactory


op

eration.
26. Return seat to original position.

Roof Opening Panel - Motor Synchronization
General Procedures

1.
Remove sliding roof trim panel for access. Refer to 76.82.19.
2. Remove battery cover and disc onnect ground cable from
battery terminal. Refer to 86.15.19.
3. Remove roof console for ac cess. Refer to 76.13.69.90.
4. Remove sliding roof panel cont rol module. Refer to 86.76.07.

5. Using a drive key or screwdriver in the motor gearbox slot,
manually move the sliding roof towards the closed position.

6. Position the sliding roof with an 8mm gap between the driven
lever and the guide rail step.

7. Index control module gears.
1. Viewing gears through aperture in control module, rotate adjuster wheel until white indexing marks on
gears are aligned.
8. Fit control module to sliding r oof frame. Refer to 86.76.07.
9. Using a drive key or screwdriver in the motor gearbox slot,
manually rotate the spindle 1/4 turn counter-clockwise to re-
engage the motor drive.
10. Fit roof console. Refer to 76.13.69.90.
11. Connect ground cable to batt ery terminal and fit battery
cover. Refer to 86.15.15.
12. Check for satisfactory operation of sliding roof panel by fully
opening and closing.