Jaguar XJ (X350). Manual — part 1111

G251562t10 : CHECK THE SENSOR 1 RESISTANCE EMPTY

1. Remove the left-hand module. 2. Move the sensor float to it's lowest position. 3. Measure the

resistance between FP04, pins 01 and 03 to the module.

Is the resistance 15 ohms?

-> Yes

GO to Pinpoint Test G251562t11.

-> No

INSTALL a new level sensor,

CLEAR the DTC. TEST the system for normal operation.

G251562t11 : CHECK THE SENSOR 1 RESISTANCE FULL

1. Move the sensor float to it's highest position. 2. Measure the resistance between FP04, pins 01

and 03 to the module.

Is the resistance 160 ohms?

-> Yes

GO to Pinpoint Test G251562t12.

-> No

INSTALL a new level sensor,

CLEAR the DTC. TEST the system for normal operation.

G251562t12 : CHECK THE SENSOR 2 RESISTANCE EMPTY

1. Remove the right-hand module. 2. Move the sensor float to it's lowest position. 3. For vehicles

without supercharger, measure the resistance between FP07, pins 01 and 03 to the module. 4. For

vehicles with supercharger, measure the resistance between FP03, pins 01 and 03 to the module.

Is the resistance 15 ohms?

-> Yes

GO to Pinpoint Test G251562t13.

-> No

INSTALL a new level sensor,

CLEAR the DTC. TEST the system for normal operation.

G251562t13 : CHECK THE SENSOR 2 RESISTANCE FULL

1. Move the sensor float to it's highest position. 2. For vehicles without supercharger, measure the

resistance between FP07, pins 01 and 03 to the module. 3. For vehicles with supercharger, measure

the resistance between FP03, pins 01 and 03 to the module.

Is the resistance 160 ohms?

-> Yes

Contact dealer technical support for advice on possible REM or instrument cluster failure.

-> No

INSTALL a new level sensor,

CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G251562p2 : P1233;
FUEL PUMP 2 DRIVE CIRCUIT FAULT

G251562t14 : CHECK THE ECM TO FUEL PUMP 2 MODULE DRIVE CIRCUIT
FOR HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the ECM electrical connector, PI01. 3.

Disconnect the fuel pump module electrical connector, CR26. 4. Measure the resistance between

PI01, pin 11 (Y) and CR26, pin 07 (Y).

Is the resistance greater than 5 ohms?

-> Yes

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

DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G251562t15.

G251562t15 : CHECK THE ECM TO FUEL PUMP 2 MODULE DRIVE CIRCUIT
FOR SHORT TO GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between PI01, pin 11 (Y) and

GROUND.

Is the resistance less than 10,000 ohms?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

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-> No

GO to Pinpoint Test G251562t16.

G251562t16 : CHECK THE ECM TO FUEL PUMP 2 MODULE DRIVE CIRCUIT
FOR SHORT TO B+

1. Measure the voltage between PI01, pin 11 (Y) and GROUND.

Is the voltage greater than 3 volts?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

-> No

INSTALL a new fuel pump module. CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G251562p3 : P1234,
P1236; NO FUEL PUMP COMMANDS
RECEIVED BY THE ECM

G251562t17 : CHECK THE ECM TO REM DRIVE CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the ECM electrical connector, PI01. 3.

Disconnect the REM electrical connector, CR11. 4. Measure the resistance between PI01, pin 27 (WR)

and CR11, pin 19 (N).

Is the resistance greater than 5 ohms?

-> Yes

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

DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G251562t18.

G251562t18 : CHECK THE ECM TO REM DRIVE CIRCUIT FOR SHORT TO
GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between PI01, pin 27 (WR)

and GROUND.

Is the resistance less than 10,000 ohms?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

-> No

GO to Pinpoint Test G251562t19.

G251562t19 : CHECK THE ECM TO REM DRIVE CIRCUIT FOR SHORT TO B+

1. Measure the voltage between PI01, pin 27 (WR) and GROUND.

Is the voltage greater than 3 volts?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

-> No

Contact dealer technical support for advice on possible REM failure.

PINPOINT TEST G251562p4 : P1338;
FUEL PUMP DRIVE CIRCUIT
LOW/HIGH VOLTAGE

G251562t20 : CHECK THE REM TO FUEL PUMP DRIVE CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the REM electrical connector, CR73. 2. Disconnect the fuel pump electrical connector,

FP04. 3. Measure the resistance between CR73, pin 03 (R) and FP04, pin 04 (R).

Is the resistance greater than 5 ohms?

-> Yes

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

DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G251562t21.

G251562t21 : CHECK THE REM TO FUEL PUMP DRIVE CIRCUIT FOR SHORT
TO GROUND

1. Measure the resistance between CR73, pin 03 (R) and GROUND.

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