Jaguar XK 2004 User Manual
V8 XJ Series/XK
DATE
08/04
Amended 11/04
303-S514
SERVICE
Operation Of Throttle
While In Closed Position –
Service Action S514
Remove and destroy Bulletin 303-S514, dated 08/04.
Replace with this Bulletin.
Revisions are marked with a bar and in bold text.
References to the tie strap for plastic adjustment nuts
have been been added on page 10.
Issue:
A concern has been identified with the operation of the throttle on a number of 1997-98
MY XK8, 1998 MY XJ8 and 1998-99 MY XJR and VDP SC vehicles. Under exceptional
circumstances this concern could cause the engine to cut out, although the engine will
continue to be driven by the road wheels through the transmission and drive the
ancillaries, so there will be no loss of power steering, brakes, air conditioning, etc. The
engine should restart without difficulty once the vehicle has come to a complete
standstill.
TECHNICAL BULLETIN
MODEL
1997-98 MY XK8 Range
1998 MY V8 XJ NA
1998-99 MY V8 XJ S/C
VIN
Refer to text
Action:
Perform this Service Action on all vehicles within the VIN ranges listed below, both in
and out of new vehicle warranty.
To aid in the identification of repairs required by vehicle, the table below provides a
breakdown of the repair required by model year, model, and VIN range. Workshop
Procedures are included in this bulletin.
Model Year Model VIN Range Repair Required
1997 to 1998 XK 001036 to 020734 Reprogram ECM - page 2
1998 V8 XJ (both
NA and SC) 812256 to 819771 Reprogram ECM - page 2
1998 XK 020735 to 031302 Replace throttle body - page 4
1998 V8 XJ NA only 819772 to 853935 Replace throttle body - page 4
1998 to 1999 V8 XJ SC only 819772 to 878717 Replace throttle body - page 4
Caution: For those vehicles that require ECM reprogramming,
use only Worldwide Diagnostic System (WDS) release JTP759/33, or
later.
NOTE: THE INFORMATION IN TECHNICAL BULLETINS IS INTENDED FOR USE BY TRAINED, PROFESSIONAL TECHNICIANS WITH THE KNOWLEDGE, TOOLS, AND EQUIPMENT TO DO THE JOB PROPERLY AND SAFELY. IT INFORMS
THESE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR PROVIDES INFORMATION THAT
COULD ASSIST IN PROPER VEHICLE SERVICE. THE PROCEDURES SHOULD NOT BE PERFORMED BY “DO-ITYOURSELFERS.” DO NOT ASSUME THAT A CONDITION DESCRIBED AFFECTS YOUR CAR. CONTACT A JAGUAR
RETAILER TO DETERMINE WHETHER THE BULLETIN APPLIES TO YOUR VEHICLE.
Date of issue 08/04 Amended 1 1/04 Bulletin Number 303-S514 Page 1 of 12
RE-PROGRAM ENGINE CONTROL MODULE (ECM)
1997-98 XK 001036 to 020734
1998 V8 XJ (both NA and SC) 812256 to 819771
Note: Before continuing, ensure the following:
• The PTU is docked on the base station.
• The WDS base station is connected to the line power supply.
• The vehicle battery is in a good state of charge (12.5 volts).
• All Diagnostic Trouble Codes (DTCs) are cleared.
The engine coolant and intake air temperatures MUST be below
50° C (122° F) for the following operation.
Caution: Do not attempt to ‘trick’ the system by cooling the
ECT sensor or sustituting a different ECT sensor. The EPROM
within the ECM is temperature sensitive and must be cool for
programing to take place correctly. Failure to follow the
guidelines may result in the ECM becoming inoperative, which
will result in non-payment of the warranty claim.
Component Locations
During the reflash procedure, the WDS will prompt the technician to temporarily remove
relays and fuses. Since some fuses can be confused with similar ones in other
locations, refer to the chart below before beginning the reflash procedure.
KXseireSJX8V
10RFME
yaler
eludomlortnocniMCE
)xoblooc(erusolcne
fotnorfnidetacolxobesufni
nignEni
xobesuftnemeganaMe
redneftnorftfelnodetacol
detacol)pma01der(21esuFni
210FME
esuf
ludomlortnocni
MCEfotnorfnidetacolxobesuf
erusolcnee
-
)xoblooc(
410FME
esuf
40RFTB
yaler
tacol
xobesufknurtnixobesufknurtni
detacol)pma01der(41esuFni
xobesuftnemeganaMenignE
redneftnorftfelnode
Note: This information can be checked at any time by using the
Connector Information Viewer (CIV) in WDS.
Page 2 of 12 Bulletin Number 303-S514 Date of issue 08/04 Amended 11/04
XK8 Vehicles equipped with KTM only – VIN range 018108 to 020733
1. On the driver side of the vehicle, release and remove the instrument panel end fuse
aperture cover (for access).
2. Release and remove fuse number 6 from the 18-way fuse box.
Note: Fuse 6 is located on the right-hand row of nine fuses, sixth fuse
down from the top. It is tan in color and the rating is 5 amps.
3. Continue to procedure below.
XK8 vehicles not equipped with KTM (VIN 001001- 018107) and
all V8 XJ Series (VIN 812256-819771)
1. Position World Wide Diagnostic System (WDS) alongside vehicle, switch Portable
Test Unit (PTU) ‘ON’ and allow software to load.
Note: Ensure WDS is loaded with software release JTP 759/33 or
later.
2. Connect PTU to vehicle using diagnostic cable.
3. Enter vehicle VIN and navigate to configuration main menu.
4. Select and run ‘re-configure existing ECM’ application.
5. After the re-configuration of ECM is complete, switch ‘OFF’ PTU, disconnect from
the vehicle and return WDS to original location.
6. Re-install fuse.
7. Re-connect connector.
Date of issue 08/04 Amended 1 1/04 Bulletin Number 303-S514 Page 3 of 12
REPLACE THROTTLE BODY
1998 XK 020735 to 031302
1998 V8 XJ NA only 819772 to 853935
1998 to 1999 V8 XJ SC only 819772 to 878717
1. Disconnect the battery ground cable;
refer to Global Technical Reference
(GTR), Workshop Manual, section 414-
01.
2. Remove the air cleaner cover/intake
assembly.
3. Disconnect the connectors and
vacuum pipe.
ILLUSTRATION 1
4. Rotate the throttle quadrant to allow
disconnection of the inner cable.
ILLUSTRATION 2
Page 4 of 12 Bulletin Number 303-S514 Date of issue 08/04 Amended 11/04
5. If installed, release the cable tie
fitted around the throttle cable
adjuster nut and the abutment
bracket, and displace the throttle
cable adjuster nut from the
abutment bracket.
6. If installed, release the throttle cablelocking nut and displace the outer
cable from the abutment bracket
Note: Do not disturb the
adjusting nut.
ILLUSTRATION 3
6. Remove the coolant hoses and install
suitable blanking plugs.
ILLUSTRATION 4
Date of issue 08/04 Amended 1 1/04 Bulletin Number 303-S514 Page 5 of 12
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