Jaguar XJ (X350). Manual — part 876

-> No

GO to Pinpoint Test G531330t150.

G531330t150 : CHECK THE EMS RELAY TO ECM IGNITION CIRCUITS FOR
HIGH RESISTANCE

1. Measure the resistance between:

EMS relay base, harness side ECM connector EC300, harness side

Pin 05

Pin 04

Pin 05

Pin 06

Is either resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. These circuits include fuses 2 and 12 of the front power

distribution box. For additional information, refer to the wiring diagrams. CLEAR the DTC and test the

system for normal operation.

-> No

INSTALL a new EMS control relay. CLEAR the DTC and test the system for normal operation.

PINPOINT TEST G531330p33 :
MANIFOLD ABSOLUTE PRESSURE
(MAP) SENSOR CIRCUIT

G531330t80 : CHECK THE MAP SENSOR SUPPLY CIRCUIT VOLTAGE

1. Disconnect the MAP sensor electrical connector, PI29. 2. Key on, engine off. 3. Measure the

voltage between:

MAP sensor connector PI29, harness side

Battery

Pin 02

Negative terminal

Is the voltage less than 4 volts?

-> Yes

REPAIR the 5 volt supply circuit between the MAP sensor and the ECM. For additional information,

refer to the wiring diagrams. CLEAR the DTC and test the system for normal operation.

-> No

GO to Pinpoint Test G531330t109.

G531330t109 : CHECK THE MAP SENSOR SUPPLY CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. Key off. 2. Measure the resistance between:

MAP sensor connector PI29, harness side

Battery

Pin 02

Positive terminal

Is the resistance less than 10,000 ohms?

-> Yes

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

test the system for normal operation.

-> No

GO to Pinpoint Test G531330t154.

G531330t154 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO GROUND

1. Measure the resistance between:

MAP sensor connector PI29, harness side

Battery

Pin 01

Negative terminal

Is the resistance less than 10,000 ohms?

-> Yes

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

test the system for normal operation.

-> No

GO to Pinpoint Test G531330t153.

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G531330t153 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. Measure the resistance between:

MAP sensor connector PI29, harness side

Battery

Pin 01

Positive terminal

Is the resistance less than 10,000 ohms?

-> Yes

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

test the system for normal operation.

-> No

GO to Pinpoint Test G531330t152.

G531330t152 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the ECM electrical connector, PI300. 2. Measure the resistance between:

MAP sensor connector PI29, harness side ECM connector PI300, harness side

Pin 01

Pin 69

Is the resistance greater than 5 ohms?

-> Yes

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

DTC and test the system for normal operation.

-> No

GO to Pinpoint Test G531330t124.

G531330t124 : CHECK THE MAP SENSOR GROUND CIRCUIT FOR HIGH
RESISTANCE

1. Measure the resistance between:

MAP sensor connector PI29, harness side ECM connector PI300, harness side

Pin 04

Pin 10

Is the resistance greater than 5 ohms?

-> Yes

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

DTC and test the system for normal operation.

-> No

INSTALL a new MAP sensor.

Manifold Absolute Pressure (MAP) Sensor (18.30.86) CLEAR the DTC and test the system for normal

operation.

PINPOINT TEST G531330p34 : ENGINE
FUEL TEMPERATURE (EFT) SENSOR
CIRCUIT

G531330t157 : CHECK THE EFT SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO GROUND

1. Disconnect the EFT sensor electrical connector, IL09. 2. Measure the resistance between:

EFT sensor connector IL09, harness side

Battery

Pin 02

Negative terminal

Is the resistance less than 10,000 ohms?

-> Yes

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

test the system for normal operation.

-> No

GO to Pinpoint Test G531330t156.

G531330t156 : CHECK THE EFT SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. Measure the resistance between:

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