Jaguar XJ (X350). Manual — part 640

-> Yes

GO to Pinpoint Test G290117t2.

-> No

INSTALL a new injector.

Fuel Injectors (18.10.02) CLEAR the DTC. TEST the system for normal operation.

G290117t2 : CHECK THE INJECTOR COIL INSULATION

1. Measure the resistance between the injector pin 01 and the injector body. 2. Measure the

resistance between the injector pin 02 and the injector body.

Is either resistance less than 10,000 ohms?

-> Yes

INSTALL a new injector.

Fuel Injectors (18.10.02) CLEAR the DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G290117t3.

G290117t3 : CHECK THE INJECTOR SUPPLY VOLTAGE

1. Turn the ignition switch to the ON position. 2. Disconnect the relevant injector harness electrical

connector (IS01 to IS04 for right-hand cylinders, IS07 to IS10 for left-hand cylinders). 3. Measure the

voltage between the relevant injector harness electrical connector (IS01 to IS04 for right-hand

cylinders, IS07 to IS10 for left-hand cylinders) pin 02 and GROUND.

Is the voltage less than 10 Volts?

-> Yes

REPAIR the circuit between the relevant injector harness electrical connector (IS01 to IS04 for right-

hand cylinders, IS07 to IS10 for left-hand cylinders) pin 02 and battery. This circuit includes the front

power distribution fuse box, fuse 13, and the EMS control relay. For additional information, refer to

the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G290117t4.

G290117t4 : CHECK THE INJECTOR GROUND CIRCUIT

1. Turn the ignition switch to the OFF position. 2. Disconnect the battery negative terminal. 3.

Disconnect the ECM electrical connector PI01. 4. Measure the resistance between the relevant

injector harness electrical connector (IS01 to IS04 for right-hand cylinders, IS07 to IS10 for left-hand

cylinders) pin 001 and the ECM electrical connector PI01, pins as follows:

Injector Cyl 1, IS01 pin 01 (BG) and PI01 pin 120 (BG).

Injector Cyl 2, IS07 pin 01 (BR) and PI01 pin 115 (BR).

Injector Cyl 3, IS02 pin 01 (BK) and PI01 pin 114 (BK).

Injector Cyl 4, IS08 pin 01 (BO) and PI01 pin 119 (BO).

Injector Cyl 5, IS03 pin 01 (BG) and PI01 pin 113 (BG).

Injector Cyl 6, IS09 pin 01 (U) and PI01 pin 118 (U).

Injector Cyl 7, IS04 pin 01 (BW) and PI01 pin 117 (BW).

Injector Cyl 8, IS10 pin 01 (UY) and PI01 pin 112 (UY).

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the circuit between the relevant injector harness electrical connector pin 01 and the engine

control module electrical connector. For additional information, refer to wiring diagrams. CLEAR the

DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G290117t5.

G290117t5 : CHECK THE INJECTOR GROUND CIRCUIT FOR SHORT CIRCUIT
TO BATTERY

1. Reconnect the battery negative terminal. 2. Measure the voltage between the relevant injector

harness electrical connector (PI32 to PI39) pin 01 and GROUND.

Is the voltage greater than 3 volts?

-> Yes

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

the system for normal operation.

-> No

GO to Pinpoint Test G290117t6.

G290117t6 : CHECK THE INJECTOR GROUND CIRCUIT FOR SHORT CIRCUIT
TO GROUND

1. Measure the resistance between the relevant injector harness electrical connector (PI32 to PI39)

pin 01 and GROUND.

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Is the resistance less than 10,000 ohms?

-> Yes

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

the system for normal operation.

-> No

Contact dealer technical support for advice on possible ECM failure.

PINPOINT TEST G290117p2 : DTC
P0190, P0192, P0193; FUEL PRESSURE
(FRP) SENSOR

G290117t7 : CHECK THE FRP SENSOR SIGNAL CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the FRP sensor electrical connector PI28.

3. Disconnect the ECM electrical connector PI01. 4. Measure the resistance between PI28 pin 03 (U)

and PI01 pin 73 (U).

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 G290117t8.

G290117t8 : CHECK THE FRP SENSOR SIGNAL CIRCUIT FOR SHORT TO HIGH
VOLTAGE

1. Reconnect the battery negative terminal. 2. Turn the ignition switch to the ON position. 3.

Measure the voltage between PI28 pin 03 (U) 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

GO to Pinpoint Test G290117t9.

G290117t9 : CHECK THE FRP SENSOR SIGNAL CIRCUIT FOR SHORT TO
GROUND

1. Disconnect the ECM electrical connector PI01. 2. Measure the resistance between the FRP sensor

electrical connector PI28 pin 03 (U) 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

Recheck the DTCs. Check the sensor supply and ground circuits.

Electronic Engine Controls - VIN Range: G00442->G45703

PINPOINT TEST G290117p3 : DTC
P0201, P0202, P0203, P0204, P0205, P0206,
P0207, P0208; FUEL INJECTORS,
VEHICLES WITH SUPERCHARGER

G290117t10 : CHECK THE INJECTOR COIL RESISTANCE

1. Turn the ignition switch to the OFF position. 2. Disconnect the relevant injector electrical

connector (PI32 to PI39). 3. Measure the resistance between the injector pins.

Is the resistance between 12 and 16 ohms?

-> Yes

GO to Pinpoint Test G290117t11.

-> No

INSTALL a new injector.

Fuel Injectors (18.10.02) CLEAR the DTC. TEST the system for normal operation.

G290117t11 : CHECK THE INJECTOR COIL INSULATION

1. Measure the resistance between the injector pin 01 and the injector body. 2. Measure the

resistance between the injector pin 02 and the injector body.

Is either resistance less than 10,000 ohms?

-> Yes

INSTALL a new injector.

Fuel Injectors (18.10.02) CLEAR the DTC. TEST the system for normal operation.

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