Connector JAGUAR X308 1998 2.G Repair Manual

m
ember. The quick-fit connector O-rings are not serviceable.
Special tool JD 182 is required to disconnect the quick-fit connector.
Hydraulic System


P
arts List
Hydraulic System

Op
erating Principle
The rot
ary motion of the steering wheel is converted, via the st
eering rack pinion, to the lateral motion of the rack. Steering
assistance is provided by pressurized fluid being directed against a piston operating within the rack cylinder. Rack
movement is achieved by diffe rential pressures being applied on either si de of the rack piston, caused by unequal
restrictions within the hydraulic control valve.
The main components of the hydraulic control valve are the rota ry distributor, control sleeve and hydraulic reaction piston.
It
em
Par
t Number
De
scription
1—F

luid reservoir
2—Pum

p
3—Pressure and fl

ow limiting valve
4—Supply line
5—R

eturn line
6—Steeri

ng rack
7—Pin

ion
8—O

perating cylinder and piston
9—Hydrau

lic control valve
10—Hydraulic reaction

piston
11—Control

sleeve
12—R

otary distributor
13—F

luid cooler


A
quick-fit connector with double O-ring se
als is incorporated in the return line and is clipped to the right-hand chassis side

Power Steering - Power Steering
Diagn
osis and Testing
Refer to the Description and Operation sub-section for details of the power operated steering system and Servotronic control
system.
Power Steer ing Pressure Test

Test Equ
i
pment

Parts List
In
stalling Test Equipment
To
in
stall the pressure test equipment:
Pla
c
e a suitable drain tray below the PAS pump.
Install a hose clamp
on
the re
servoir to pump hose prior to disconnecting any hoses, to avoid unnecessary loss of
fluid.
Di sc
onnect the hose from the PAS pump high pres
sure outlet.
Ins
tall the pump outlet to hose ad
aptor. Do not omit the O-ring.
Conn
ect the pump adaptor to control valve hose of the test equipment.
Install th
e adaptor in the high pressure hose previ
ously re
moved from the pump outlet.
Conne
ct the connector of the test equipment hose to the adaptor.
R
e
move the hose clamp fro
m the reservoir hose.
Start th
e engine.
With the control valve OPEN and the engine idling , the following system pressures may be checked:
Du
ring turning.
W
h
en the steering is
held on full lock.
With
the steeri
ng at rest.
• WARNINGS:
TO AVOID EXCESSIVE HEATING OF THE PAS PUMP, DO NOT CLOSE THE VALVE FOR LONGER THAN NECESSARY.
Ite
m
Par
t
Number
De
scr
iption
1—Pressure

gauge hose
2—Pump return hose
3—Pump return hose connector
4—Test equi
pment to
HP hose adaptor
5—Pump HP outlet to hose adaptor
6—Pump adaptor
to control valve hose
7—Control valve

Righ
t-hand drive vehicles
All vehicles

7. De
tach the steering
column lower shaft.
1. Loosen the steering column lower shaft retaining bolt.
2. Remove and discard the st eering column lower shaft
retaining bolt.
3. Detach the steering column lower shaft.

8. Di
sconnect the steering gear transducer electrical connector.

9. Cut an
d discard the stee
ring gear transducer harness tie-strap.

10
.
Cut and discard the power steeri ng return pipe tie-strap.
11. Detach the power steering re turn pipe from the mounting
rubber.

In
stallation
All vehicles

Route t
he steering gear transducer harness from behind
the power steering return pipe (right-hand drive vehicles
only).

12 . Remove the
power steering supply and return pipe retaining
plate bolt and with draw the plate.

13 . D
rain the power steering fluid.
Di
sc
onnect the power steering
supply and return pipes and
allow the fluid to drain.
Remove an d discard the ´O´ring seals from the
pipe
connectors.
Fi t su
itable blanking caps
to the pipe connectors and
pinion housing ports.
14. Remove the drain pan and discard the fluid.
15. NOTE: The steering gear mounting bushings are handed;
they are marked accordingly and must be replaced as a pair.
Remove the steering gear mo unting bracket bushings.
For additional information, refer to: Steering Gear Bushing

( 21
1-02 Power Steering, Removal and Installation).
16. NOTE: When removing the steering gear, manoeuvre the
power steering return pipe past the pinion housing to steering
gear pipes.
Remove the steering gear.
17. Using a tap (M10 x 1.5 mm), clean the steering gear to
crossbeam bolt hole threads.
1. If a new steering gear assembly is to be fitted, make sure
steering gear is centrali zed before installation.

2. NOTE
: When installing the steering gear, manoeuvre the power

steering return pipe past the pinion housin g to steering gear
pipes.
• NOTE: A new steering gear assembly is supplied with a dirt
protection cover/cent ralizing cap fitted.
Position the steering gear to vehicle.
3. Install the steering gear mo unting bracket bushings.
For additional information, refer to: Steering Gear Bushing

(
211-02 Power Steering, Removal and Installation).

4. Conne
ct the power steering su
pply and return pipes to the
pinion housing.
R
emove the blanking caps an
d install new ´O´ring seals in
pipe connectors.
lubri
cate the ´O´ring seals wi
th clean power steering fluid.
R
emove the blanking caps from
the pinion housing ports.
Position the power
steering su
pply and return pipes to the
pinion ports and seat ´O´rings.

5. Attach
the power steering supply
and return pipes to the pinion
housing.
Ensure the power steering su pply
and return pipes and the

retaining plate are correctly seated.
Install th
e bolt.
Tigh

ten to 9-12 Nm.
6. Clean any fluid spillage from the steering gear and surrounding
area.
7. Attach the power steering return pipe to the steering gear.
Attach
the rubber support to
the power steering return
pipe.
Rout
e the steering gear transducer harness behind the
power steering return pipe (right-hand drive vehicles

Right
-hand drive vehicles
All vehicles

only
).

8. Install a new power st ee
ring return
pipe tie-strap.

9. Install a new steering gear transducer harness tie-strap.

10 . Conne
ct the steering gear transducer electrical connector.
On righ

t-hand drive vehicles
, position the steering gear
transducer harness behind th e power steering return pipe.

11
. NOTE
: Right-hand shown, left-hand similar.
Attach the tie rod end.

Is adjustable for both til
t and reach.
Has ca

ble operated reach adjustment, using a rack an
d wedge, with approximately 16 latched positions.
Has si
x latched tilt positions steppe
d at approximately 3° intervals.
Has an u
nlatched top tilt position, allowing the column to be
pulled down to engage the first detent without using the
tilt lever.
Has an instrument li
ghti
ng dimmer switch installed on the left-hand side of the lower cowl.
Manual Upper Column Components

The telescopic slider provides driver crash protection by retracting automatically in the event of an accident; it is clamped in
position to a preset torque.
The manual upper steering column has the following serviceable parts:
Igni
tion switch assembly.
Igni

tion key interlock solenoid.
Bowden

cable and lever assembly.
It
em
Par
t Number
De
scription
1-L

ower mounting bracket
2-Crash tube
3-Harnes

s connector bracket
4-Upper

mounting bracket
5-Ignition switc

h (hidden)
6-Igni

tion key interlock solenoid
7-S

teering wheel mounting shaft


The manu
al upper
steering column:

Steering Column Switches - Steering Colu
mn Multifunction Switch
Re
moval and Installation
Remov

al
Installation

1.
D
isconnect battery ground cable; refer to 86.15.19.
2. NOTE: Steering wheel must be in the straight ahead position.
Remove steering wheel.

3. Di
splace cancellation module connector from mounting bracket
and disconnect.

4. Di
splace flasher/headlamp/t
rip switch connectors from
mounting bracket and disconnect.
Cut an
d remove appropriate harness securing ties.

5. Re
move switchgear.
1. Remove two screws which secure switch assembly/cancellation module to mounting bracket.
2. Displace switchgear from mounting bracket.
3. Route switchgear harness through mounting bracket and remove switchgear.
1. Installation is reverse of removal.

En
gine - Engine
D
iagnosis and Testing
Sym

ptom Chart
Sy
mptom Chart
Pinp

oint test A: P1392 (P1397)
VVT solenoid circuit low input
S
pecial Tool(s)

D

igital multimeter

Generi

c scan tool
Sy

mptom
Possib
le Sources
Acti
on
D

TC P1392 VVT solenoid A circuit low input
So
lenoid coil open circuit
Harness open circuit or blown fuse
Connector pins(s) bent , loose or corroded
*
*
*
GO to
P
inpoint Test A

*
D
TC P1397 VVT solenoid B circuit low input
So
lenoid coil open circuit
Harness open circuit or blown fuse
Connector pins(s) bent , loose or corroded
*
*
*
GO to
P
inpoint Test A

*
D
TC P1393 VVT solenoid A circuit high input
So
lenoid coil short circuit
Harness short circuit
Connector pins(s) bent , loose or corroded
*
*
*
GO to
P
inpoint Test B

*
D
TC P1398 VVT solenoid B circuit high input
So
lenoid coil short circuit
Harness short circuit
Connector pins(s) bent , loose or corroded
*
*
*
GO to
P
inpoint Test B

*
D
TC P1396 VVT solenoid B malfunction
O
il pressure failure
VVT solenoid sticking
Connector pins(s) bent , loose or corroded
Crankshaft position sensor failure
ECM failure
*
*
*
*
*
GO to
P
inpoint Test C

*
P
INPOINT TEST A : P1392 (P1397) VVT SOLENOID CIRCUIT LOW INPUT
•
NOTE: References in brac
kets are for Bank B (2)
T
EST CONDITIONS
D
ETAILS/RESULTS/ACTIONS
A1

: RETRIEVE DTCS
•

NOTE: Battery and or ECM disconnection prior to scanning wi
ll erase all data, ensure that the correct DTC is present.

W
ith VVT connector PI031 - A bank or (PI032 - B bank)
disconnected, measure the resistance between the pins 1
and 2 at the VVT actuator
1
I
s the resistance less than 5
OHM or greater than 20 OHM?
Yes Renew the VVT solenoid and te st the system for normal
operation.
No GO to A4
A4: CHECK
HARNESS CONTINUITY