Jaguar XJ (X350). Manual — part 862

-> No

GO to Pinpoint Test G531330t99.

G531330t99 : CHECK THE IAT SENSOR GROUND CIRCUIT FOR HIGH
RESISTANCE

1. Measure the resistance between:

MAF sensor connector PI14, harness side ECM connector PI300, harness side

Pin 05

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 and test the system for normal operation.

-> No

INSTALL a new MAF sensor.

Mass Air Flow (MAF) Sensor (18.30.15) CLEAR the DTC and test the system for normal operation.

PINPOINT TEST G531330p3 : ENGINE
COOLANT TEMPERATURE (ECT)
SENSOR CIRCUIT

G531330t10 : CHECK THE ECT SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO GROUND

1. Disconnect the ECT sensor electrical connector, PI25. 2. Measure the resistance between:

ECT sensor connector PI25, 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 G531330t9.

G531330t9 : CHECK THE ECT SENSOR SENSING CIRCUIT FOR SHORT CIRCUIT
TO POWER

1. Measure the resistance between:

ECT sensor connector PI25, 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 G531330t8.

G531330t8 : CHECK THE ECT SENSOR SENSING CIRCUIT FOR HIGH
RESISTANCE

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

ECT sensor connector PI25, harness side ECM connector PI300, harness side

Pin 02

Pin 68

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 G531330t121.

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G531330t121 : CHECK THE ECT SENSOR GROUND CIRCUIT FOR HIGH
RESISTANCE

1. Measure the resistance between:

ECT sensor connector PI25, harness side ECM connector PI300, harness side

Pin 01

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 and test the system for normal operation.

-> No

INSTALL a new ECT sensor.

Engine Coolant Temperature (ECT) Sensor - VIN Range: G00442->G45703 (18.30.10) CLEAR the DTC.

TEST the system for normal operation.

PINPOINT TEST G531330p4 :
THROTTLE POSITION (TP) SENSOR 1
CIRCUIT

G531330t95 : CHECK THE TP SENSOR SUPPLY CIRCUIT VOLTAGE

1. Disconnect the TP sensor electrical connector, PI26. 2. Key on, engine off. 3. Measure the voltage

between:

TP sensor connector PI26, harness side

Battery

Pin 05

Negative terminal

Is the voltage less than 4 volts?

-> Yes

REPAIR the 5 volt supply circuit between the TP 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 G531330t96.

G531330t96 : CHECK THE TP SENSOR SUPPLY CIRCUIT FOR SHORT CIRCUIT
TO POWER

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

TP sensor connector PI26, harness side

Battery

Pin 05

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 G531330t13.

G531330t13 : CHECK THE TP SENSOR SENSING CIRCUIT TP1 FOR SHORT
CIRCUIT TO GROUND

1. Measure the resistance between:

TP sensor connector PI26, harness side

Battery

Pin 06

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 G531330t12.

G531330t12 : CHECK THE TP SENSOR SENSING CIRCUIT TP1 FOR SHORT
CIRCUIT TO POWER

1. Measure the resistance between:

TP sensor connector PI26, harness side

Battery

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