1998 JAGUAR X308 battery

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.

The
ignition supply is the main power source for the ECM; this supply will be disconne
cted by an inertia switch if the vehicle
is subject to a violent deceleration, as in a collision. The ECM has separate ignition and battery supply inputs. The battery
input maintains the ECM memory as long as the vehicle battery is connected.

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.

Pin
point test B: P1393 (P1398) VVT solenoid circuit high input
W
ith EM014 disconnected, measure the resistance
between EM014/009 and ground EM016L
1
I
s the resistance < 0.5 OHM?
Yes Reconnect EM014, EM015, PI031 or (PI032)
GO to A6
No Inspect harness / connector EM014, ground stud and
splice EMS37 for corrosion, damage, bent or pushed back
pins and repair as required. Test the system for normal
operation.
A6
: END
Perform

appropriate service drive cycle and check for the
presence of DTC.
1
Has
the fault code cleared?
Yes STOP
No Contact Jaguar Service
P
INPOINT TEST B : P1393 (P1398) VVT SOLENOID CIRCUIT HIGH INPUT
•
NOTE: References in brac
kets are for Bank B (2)
T
EST CONDITIONS
D
ETAILS/RESULTS/ACTIONS
B1

: RETRIEVE DTCS
•

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

Pinpoint test C: P1396
VVT solenoid malfunction
W
i
th EM015, EM014 PI031 and PI032 disconnected,
measure the insulation resistance between EM015/009
and EM015/008
1
I s
the resistance > 10 MOHM?
Yes Reconnect all connectors
GO to B7
No Inspect EM015 and PI031 (PI032) for corrosion, bent /
pushed back pins or locate and repair the harness /
connector PI001/016 (PI001/027). Test the system for
normal operation.
B7: EN
D
Perform
a
ppropriate service drive cycle and check for the
presence of DTC
1
Has th
e fault code cleared?
Yes STOP
No Contact Jaguar Service
PINPOINT TES
T C : P1396 VVT SOLENOID MALFUNCTION
T
E
ST CONDITIONS
D
E
TAILS/RESULTS/ACTIONS
C1
: RETRIEVE DTC
S
•
NOTE
: Battery and or ECM disconnection prior to scanning wi
ll erase all data, ensure that the correct DTC is present.

En
gine - Valve Clea
rance Adjustment
Gene
ral Procedures
S
p
ecial Tool(s)

Tappet adjustment
3
03-
540

Ai
r gun, fan nozzl
e
303-590
1. Open the engine compartment and fit paintwork protection
sheets. Open to the service position.
2. Carefully remove both engine covers, taking care not to
damage the plasti c fixings or the rubber inserts.

3. Disc
onnect the batt
ery ground cable.
Re
move the battery cover.
4. Remove the cam cover from the 'A' bank and the 'B' bank;
including the purge valve, the on-plug ignition coils and the air
intake tube / air flow meter / air cleaner cover assembly. Refer
to Operations 12.29.43 and 12.29.44.
5. Check, and note the valve cleara nces, as described earlier in
this section.
6. Use a rag to wipe up as much oil as possible from the tappet
wells.
7. Valve adjustment involves considerable repetition. A SUMMARY
OF THE PROCEDURE follows:
1. Fit the adjusting tool base plate to one cylinder head.
2. Rotate the crankshaft to position four valves ready for
adjustment.
3. Use the attachment part of the special tool to adjust two valve clearances. Transfer the attachment and
adjust the other two valve clearances.
4. Remove the attachment pa rt from the adjusting tool
base plate.

14
. WARNING: TH
E FOLLOWING OPERATIONS REQUIRE
THE USE OF COMPRESSED AIR - ALWAYS WEAR SUITABLE EYE
PROTECTION.
Remove, clean and measure the shims.
1. Surround the immediate wo rking area with clean rag
to contain any loose objects and shims displaced by
the compressed air.
2. Use 303 - 590 Air Gun (with a fan nozzle) aimed at the edge of the shim to lift it from the tappet.
Remove the shim from each tappet, noting the
position of each.
15 . Cl
ean and measure the thickness of each shim.
16. Assess the increase or decrease required in shim thickness to
produce the correct valve clearance.
17. Select two shims of the correct size, lubricate each and fit
each to the respective tappet (as calculated in the previous
step). Shims must be fitted with the size marking facing the
tappet NOT the cam.

18 . Loos
en the knurled screws on 303 - 540 attachment to allow
the valve springs to return to their normal position.
19. Check the valve clearance of the two valves. If the clearance
is correct, remove the attachment from the base plate. transfer
the attachment to the other two valves which are in position to
be adjusted.
20. Repeat the adjustment procedure, as described in the
Summary.
21. Refit the cam covers and associated components. Refer to
Operations 12.29.43 and 12.29.44.
22. Refit the engine covers.
23. Check the engine oil level; rectify as necessary.
24. Move the engine compartment cover from the service position
and connect the gas struts.
25. Remove the paint protection sheets and close the cover.
26. Connect the battery and fit the battery cover.
Refe
r to the Battery Reconnection Procedure 86.15.15.

E
ngine - Valve Clearance Check
Gen
eral Procedures

1.
Open the engine compartment and fit paintwork protection
sheets. Open to the service position.
2. Carefully remove both engine covers, taking care not to
damage the plasti c fixings or the rubber inserts.

3. Di
sconnect the batt
ery ground cable.
R
emove the battery cover.
4. Remove the cam cover from the 'A' bank and the 'B' bank;
including the purge valve, the on-plug ignition coils and the air
intake tube / air flow meter / air cleaner cover assembly. Refer
to Operations 12.29.43 and 12.29.44.
5. Rotate the crankshaft so that there are four valves which are
'off the cam' (cam lobes upperm ost), so that their clearance
may be measured.
6. Measure the gap on each of the four valves. Note which valve
has been measured, along with its relevant clearance.
7. Rotate the crankshaft a small am ount so that the next four
valves are 'off the cam'. Measure and note the clearances.
Re
peat this step
a further six times, until all valve
clearances have been measured and noted.
8. Refit the cam covers and associated components. Refer to
Operations 12.29.43 and 12.29.44.
9. Refit the engine covers.
10. Move the engine compartment cover from the service position
and connect the gas struts.
11. Remove the paint protection sheets and close the cover.
12. Connect the battery and fit the battery cover.
Re
fer to the Battery Reconnection Procedure 86.15.15