Jaguar XJ (X350). Manual — part 952

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

INSTALL a new MAP sensor.

Manifold Absolute Pressure (MAP) Sensor - 4.2L NA V8 - AJV8 (18.30.86) CLEAR the DTC. TEST the

system for normal operation. If the DTC is repeated, refer to the warranty policy and procedures

manual if an ECM is suspect.

PINPOINT TEST G531332p34 : ENGINE
FUEL TEMPERATURE (EFT) SENSOR
RANGE/PERFORMANCE, LOW/HIGH
VOLTAGE

G531332t155 : CHECK THE EFT SENSOR SENSING CIRCUIT FOR HIGH
RESISTANCE

1. Key off. 2. Disconnect the EFT sensor electrical connector, PI27. 3. Disconnect the ECM electrical

connector, PI300. 4. Measure the resistance between:

EFT sensor connector PI27, harness side ECM connector PI300, harness side

Pin 02

Pin 46

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 G531332t156.

G531332t156 : CHECK THE EFT SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO POWER

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

EFT sensor connector PI27, harness side

Battery

Pin 02

Negative terminal

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 G531332t157.

G531332t157 : CHECK THE EFT SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO GROUND

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

EFT sensor connector PI27, 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.

TEST the system for normal operation.

-> No

INSTALL a new EFT sensor.

Fuel Temperature Sensor (18.30.99) CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G531332p35 : AIR
CONDITIONING (A/C) PRESSURE
SENSOR CIRCUIT LOW/HIGH
VOLTAGE

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G531332t158 : CHECK THE A/C PRESSURE SENSOR SENSING CIRCUIT FOR
HIGH RESISTANCE

1. Key off. 2. Disconnect the A/C pressure sensor electrical connector, EC11. 3. Disconnect the ECM

electrical connector, PI300. 4. Measure the resistance between:

A/C pressure sensor connector EC11, harness side ECM connector PI300, harness side

Pin 02

Pin 12

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 G531332t159.

G531332t159 : CHECK THE A/C PRESSURE SENSOR SENSING CIRCUIT FOR
SHORT CIRCUIT TO POWER

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

A/C pressure sensor connector EC11, harness side

Battery

Pin 02

Negative terminal

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 G531332t160.

G531332t160 : CHECK THE A/C PRESSURE SENSOR SENSING CIRCUIT FOR
SHORT CIRCUIT TO GROUND

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

A/C pressure sensor connector EC11, 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.

TEST the system for normal operation.

-> No

INSTALL a new A/C pressure sensor.

Pressure Cutoff Switch - 4.2L NA V8 - AJV8/4.2L SC V8 - AJV8/3.0L NA V6 - AJ27/3.5L NA V8 - AJV8

(82.10.32)

PINPOINT TEST G531332p37 :
MANIFOLD ABSOLUTE PRESSURE
SENSOR/TEMPERATURE (MAPT)
SENSOR, INTAKE AIR TEMPERATURE
(IAT2) SENSING CIRCUIT

G531332t166 : CHECK THE MAPT SENSOR IAT2 SENSING CIRCUIT FOR HIGH
RESISTANCE

1. key off. 2. Disconnect the MAPT sensor electrical connector, PI301. 3. Disconnect the ECM

electrical connector, PI300. 4. Measure the resistance between:

MAPT sensor connector PI301, harness side ECM connector PI300, harness side

Pin 03

Pin 39

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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