Jaguar XJ (X350). Manual — part 1127

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552807t7 : CHECK THE LEFT HAND FUEL LEVEL SENDER SIGNAL CIRCUIT
FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

FP14, harness side

Battery

Pin 02

Positive terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552807t9.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552807t9 : CHECK THE LEFT HAND FUEL LEVEL SENDER SIGNAL RETURN
CIRCUIT FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

FP14, harness side

Battery

Pin 01

Positive terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552807t10.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552807t10 : CHECK THE LEFT HAND FUEL LEVEL SENDER SIGNAL CIRCUIT
FOR HIGH RESISTANCE

1. Disconnect the REM electrical connector, CR04. 2. Measure the resistance between:

FP14, harness side CR04, harness side

Pin 02

Pin 16

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test G552807t11.

-> No

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any

DTCs, test the system for normal operation.

G552807t11 : CHECK THE LEFT HAND FUEL LEVEL SENDER SIGNAL RETURN
CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the REM electrical connector, CR11. 2. Measure the resistance between:

FP14, harness side CR04, harness side

Pin 01

Pin 23

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test G552807t12.

-> No

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any

DTCs, test the system for normal operation.

G552807t12 : CHECK THE LEFT HAND FUEL LEVEL SENDER RESISTANCE
EMPTY

1. Remove the fuel transfer pump.

Fuel Transfer Pump - 4.2L NA V8 - AJV8/4.2L SC V8 - AJV8/3.0L NA V6 - AJ27/3.5L NA V8 - AJV8, VIN

Range: G00442->G45703 (19.45.21) 2. Move the sensor float to it's lowest position. 3. Measure the

resistance between:

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FP14, component side FP14, component side

Pin 01

Pin 02

Is the resistance between 50 and 52 ohms?

-> Yes

GO to Pinpoint Test G552807t13.

-> No

INSTALL a new fuel level sender,

Fuel Level Sender LH - 2.7L V6 - TdV6 Clear any DTCs, test the system for normal operation.

G552807t13 : CHECK THE LEFT HAND FUEL LEVEL SENDER RESISTANCE
FULL

1. Move the sensor float to it's highest position. 2. Measure the resistance between:

FP14, component side FP14, component side

Pin 01

Pin 02

Is the resistance greater than 591 ohms?

-> Yes

An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other

physical damage to the harness. If no fault is found in the circuit, suspect the following

component(s): - Fuel transfer pump connector. - Fuel level sender. - REM connector. - REM.

-> No

INSTALL a new fuel level sender,

Fuel Level Sender LH - 2.7L V6 - TdV6 Clear any DTCs, test the system for normal operation.

PINPOINT TEST G552807p4 : FUEL
PUMP MODULE RELAY

G552807t14 : CHECK FOR POWER TO THE FUEL PUMP MODULE RELAY BASE

1. Engine control module (ECM) connector, EC66

Circuit

Pin

Fuel pump module relay - control J4

2. Remove the fuel pump module relay. 3. Measure the voltage between:

Fuel pump module relay base

Battery

Pin 04

Negative terminal

Is the voltage greater than 10 volts?

-> Yes

GO to Pinpoint Test G552807t15.

-> No

REPAIR the power supply circuit as necessary. For additional information, refer to the wiring

diagrams. Clear any DTCs, test the system for normal operation.

G552807t15 : CHECK THE SWITCHED SUPPLY TO THE FUEL PUMP MODULE
RELAY BASE

1. Key on, engine off. 2. Measure the voltage between:

Fuel pump module relay base

Battery

Pin 02

Negative terminal

Is the voltage greater than 10 volts?

-> Yes

GO to Pinpoint Test G552807t16.

-> No

REPAIR the switched supply circuit as necessary, this circuit includes the slave ignition relay. For

additional information, refer to the wiring diagrams. Clear any DTCs, test the system for normal

operation.

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