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TECHNICAL BULLETIN
JTB00301NAS1
26 MAR 2014
© Jaguar Land Rover North America, LLC
NOTE: The information in Technical Bulletins is intended for use by trained, professional Technicians with the knowledge, tools,
and equipment required 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'. If you are not a Retailer, do not assume that a condition described affects your vehicle. Contact an authorized
Jaguar service facility to determine whether this bulletin applies to a specific vehicle.

SECTION: 310-00

Fuel Gauge Operation
AFFECTED VEHICLE RANGE:
XK Range (X150)
Model Year:
2010-2012
VIN:
B32753-B47682
XF (X250)
Model Year:
VIN:

2010-2012
R47154-S23314

Engine:

V8 5.0L Petrol
V8 S/C 5.0L Petrol

MARKETS:
NAS

CONDITION SUMMARY:
Situation: The fuel gauge may experience one or more of the following issues:
• Fuel gauge inoperative;
• Fuel gauge not showing more than ½ full;
• Fuel gauge fluctuates; and/or
• Fuel gauge switches on/off intermittently.

Cause: These issues may be caused by:
• Backed-out pins in any of the following areas:
- internal to the fuel tank (sender wiring);
- fuel pump module; and/or
- fuel tank flange assembly.
• Fretting corrosion across the fuel sender harness pins inside the fuel tank (black connectors).

NOTE: Refer to TOPIx Workshop Manual, Section 310-01: Fuel Tank and Lines Diagnosis and
Testing; if a harness or fuel sender fault cannot be identified, follow the Service Instruction outlined
below.

NOTE: Please advise the customer, if possible, to bring the vehicle in with the fuel tank level
below ¼ full.

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Action: Should a customer express this concern, follow the Service Instruction outlined below.

PARTS:

CAUTION: The splice joint connector is specific to this repair and must be used and crimped using
special tool 418-116A (YRW500010).
C2P8274

Gasket - Fuel tank - XK

Quantity: 1

C2Z27711

Splice joint connector

Quantity: 6 (as
necessary)

C2Z7361

Gasket - Fuel tank - XF

Quantity: 1

TOOLS:
Crimping Pliers
418-116A / YRW500010

WARRANTY:
NOTE: Repair procedures are under constant review, and therefore times are subject to change;
those quoted here must be taken as guidance only. Always refer to TOPIx to obtain the latest repair
time.
NOTE: DDW requires the use of causal part numbers. Labor only claims must show the causal part
number with a quantity of zero.
DESCRIPTION

SRO

TIME (HOURS)

CONDITION CODE

CAUSAL PART

Fuel sender harness modification - XF

86.94.80

0.8

X2

C2Z23190

Fuel sender harness modification - XK

86.94.80

5.1

X2

C2P24405

NOTE: Normal Warranty policies and procedures apply.

SERVICE INSTRUCTION:
1. Carry out fuel system pressure release (see TOPIx Workshop Manual, Section 310-00).
2. Disconnect the battery ground cable (see TOPIx Workshop Manual, Section 414-01).

WARNING: Make sure that the fuel system has been de-pressurized before disconnecting any fuel
connections.

3. Carry out fuel tank drain (see TOPIx Workshop Manual, Section 310-00).

4.

CAUTION: Inspect the fuel tank flange electrical connector for sign of damage or backed out
pins before removing the fuel tank flange. Any repair carried out to the fuel tank flange electrical
connector should be carried out as a separate warranty claim.
Remove the fuel pump and sender unit (see TOPIx Workshop Manual, Section 310-01).

5. Place the fuel pump and sender unit on a clean work surface.

CAUTION: To reduce the chance of incorrect wiring of the harnesses, wherever possible, only repair
one wire at a time.

NOTE: The number of black connectors shown in the fuel tank on a vehicle may vary from the
procedure shown below. To achieve the best possible repair, replace as many of the black connectors (up

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to three [3] in total) as possible.

NOTE: XF shown; XK similar.

6.

CAUTION: To reduce the chance of
incorrect wiring of the harnesses, wherever
possible, only repair one wire at a time.

CAUTION: Make sure that the splice is
crimped in the correct location.

CAUTION: Make sure that the splice is
crimped using special tool 418-116A /
YRW500010.

CAUTION: Make sure that the splice with
the part number listed above is used. Failure
to follow these instructions may result in a
poor repair.

NOTE: The number of black connectors
shown in the fuel tank on a vehicle may vary
from the procedure shown below. To achieve
the best possible repair, replace as many of
the black connectors (up to three [3] in total)
as possible.

NOTE: Some variation in the illustrations
may occur, but the essential information is
always correct.
When installing the splices, make sure that the
splice is crimped in the correct location.
'Tick' / '1' - correct crimp location
'X' / '2' - incorrect crimp location

7.

CAUTION: Make sure the wiring is cut as
close to the connector as possible.

NOTE: A total of three (3) black two-pin
connectors may be found. Replace only one at
a time.
Identify a black two-pin connector to be removed.
Cut wiring as close to the connector as

possible.

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8. Using a suitable tool, remove 5mm of insulation
from the end of each wire.

9.

CAUTION: After crimping the connection,
perform a gentle pull test to make sure that a
sufficiently strong connection has been
created. If required, remove and replace the
splice.
Using Crimping Tool 418-116A / YRW500010,
install and crimp a splice to the ends of each wire.

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10. Repeat steps 8-9 to the other wire in the
connector.
Discard the connector.

11. Repeat steps 7-10 to all black two-pin connectors (up to three [3] in total).
12. Using a suitable tie strap, secure the two splices
together.

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13.
CAUTION: Make sure the wiring is cut
as close to the connector as possible.
Identify the ground connector (two black wires) to
be removed.
Cut wiring as close to the connector as

possible.
Discard the connector.

14. Using a suitable tool, remove 5mm of insulation from the end of each wire.

15.
NOTE: Do not connect the two splices
until step 19.
Using Crimping Tool 418-116A / YRW500010,
install and crimp a splice to the end of each wire.

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16.

CAUTION: Do not install the fuel tank flange at this point.

Install the fuel pump and sender unit into the fuel tank (see TOPIx Workshop Manual, Section 310-01).

17.
CAUTION: Make sure the wiring is cut
as close to the connector as possible.

CAUTION: Make sure that the correct
wires are re-connected to each other.
Identify the connector to be removed.
Carefully withdraw the connector out of the

tank.
Cut the wires shown as close to the connector

as possible.
Discard the connector.

18.
CAUTION: After crimping the
connection, perform a gentle pull test to
make sure that a sufficiently strong
connection has been created. If required,
remove and replace the splice.
Using a suitable tool, remove 5mm of insulation
from the end of each wire.
Using Crimping Tool 418-116A / YRW500010,

install and crimp a splice to the ends of each
wire.

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Using a suitable tie strap, secure the two

splices together.

19.
CAUTION: After crimping the
connection, perform a gentle pull test to
make sure that a sufficiently strong
connection has been created. If required,
remove and replace the splice.
Connect the two ground wires from the base of the
fuel tank flange to the two splices installed in step
15.
Position the fuel tank flange close to the fuel

tank.
Using a suitable tool, remove 5mm of

insulation from the end of each wire.
Using Crimping Tool 418-116A / YRW500010,

install and crimp a splice to the ends of each
wire.
Using a suitable tie strap, secure the two
splices together.

20. Refer to the Resistance Values Checks table below and check the resistance values across fuel tank flange
pins listed:
If the resistance value is between 46.2 and 1002.2 ohms, continue to the next step.
If the resistance value is outside this range, further investigation is required. Must be performed as a

separate claim.

21.
CAUTION: A successful resistance values check (step 20) must be carried out before
continuing to install the fuel pump and sender unit.
Complete the installation of the fuel pump and sender unit (see TOPIx Workshop Manual, Section 310-01).
22. Read and clear all Diagnostic Trouble Codes (DTC).

Resistance Values Checks

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Check No.

Pin No.

Lower Resistance Value (Ohms)

Upper Resistance Value (Ohms)

1

1

2

46.2

1002.2

2

1

6

46.2

1002.2

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