Jaguar XJ (X350). Manual — part 918

GO to Pinpoint Test G258127t125.

G258127t125 : CHECK THE SENSOR GROUND AT THE FUEL TEMPERATURE
(FT) SENSOR

1. Disconnect the FT sensor electrical connector, IL09. 2. Reconnect the ECM electrical connector,

PI01. 3. Measure the resistance between IL09, pin 02 (BG) and GROUND.

Is the resistance greater than 5 ohms?

-> Yes

GO to Pinpoint Test G258127t126.

-> No

GO to Pinpoint Test G258127t127.

G258127t126 : CHECK THE FUEL TEMPERATURE (FT) SENSOR GROUND
CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the ECM electrical connector, PI01. 2. Measure the resistance between IL09, pin 02

(BG) and PI01, pin 19 (BG).

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 G258127t127.

G258127t127 : CHECK THE SENSOR GROUND AT THE FUEL RAIL PRESSURE
(FRP) SENSOR

1. Disconnect the FRP sensor electrical connector, IL12. 2. Reconnect the ECM electrical connector,

PI01. 3. Measure the resistance between IL12, pin 02 (BG) and GROUND.

Is the resistance greater than 5 ohms?

-> Yes

GO to Pinpoint Test G258127t128.

-> No

GO to Pinpoint Test G258127t129.

G258127t128 : CHECK THE FUEL RAIL PRESSURE (FRP) SENSOR GROUND
CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the ECM electrical connector, PI01. 2. Measure the resistance between IL12, pin 02

(BG) and PI01, pin 19 (BG).

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 G258127t129.

G258127t129 : CHECK THE SENSOR GROUND AT THE ENGINE OIL
TEMPERATURE (EOT) SENSOR

1. Disconnect the EOT sensor electrical connector, PI38. 2. Reconnect the ECM electrical connector,

PI01. 3. Measure the resistance between PI24, pin 02 (BG) and GROUND.

Is the resistance greater than 5 ohms?

-> Yes

GO to Pinpoint Test G258127t130.

-> No

GO to Pinpoint Test G258127t131.

G258127t130 : CHECK THE ENGINE OIL TEMPERATURE (EOT) SENSOR
GROUND CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the ECM electrical connector, PI01. 2. Measure the resistance between PI24, pin 02

(BG) and PI01, pin 19 (BG).

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

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GO to Pinpoint Test G258127t131.

G258127t131 : CHECK THE SENSOR GROUND AT THE A/C PRESSURE
SENSOR

1. Disconnect the A/C pressure sensor electrical connector, EC11. 2. Reconnect the ECM electrical

connector, PI01. 3. Measure the resistance between EC11, pin 01 (BG) and GROUND.

Is the resistance greater than 5 ohms?

-> Yes

GO to Pinpoint Test G258127t132.

-> No

Check for DTCs relating to individual sensors. Carry out pinpoint tests for sensors indicated.

G258127t132 : CHECK THE A/C PRESSURE SENSOR GROUND CIRCUIT FOR
HIGH RESISTANCE

1. Disconnect the ECM electrical connector, PI01. 2. Measure the resistance between EC11, pin 02

(BG) and PI01, pin 19 (BG).

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

Check for DTCs relating to individual sensors. Carry out pinpoint tests for sensors indicated.

PINPOINT TEST G258127p27 : DTC
P1245, P1246; ENGINE CRANK SIGNAL
LOW/HIGH VOLTAGE

G258127t133 : CHECK THE IGNITION SWITCH TO ECM CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the ignition switch electrical connector,

IP34. 3. Disconnect the ECM electrical connector, PI01. 4. Measure the resistance between IP34, pin

01 (Y) and PI01, pin 06 (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 G258127t134.

G258127t134 : CHECK THE IGNITION SWITCH TO ECM 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 IP34, pin 01 (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 ignition switch. CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G258127p28 : DTC
P1340, P1341; LEFT-HAND CAMSHAFT
POSITION (CMP) SENSOR CIRCUIT
MALFUNCTION
RANGE/PERFORMANCE

G258127t135 : CHECK THE CMP SENSOR FOR CORRECT INSTALLATION

1. Check the CMP sensor for correct installation.

Is the CMP sensor correctly installed?

-> Yes

GO to Pinpoint Test G258127t136.

-> No

INSTALL the CMP sensor correctly.

CLEAR the DTCs. TEST the system for normal operation.

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Политика конфиденциальности