Jaguar XJ (X350). Manual — part 949

-> 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 G531332t116.

G531332t116 : CHECK THE SENSOR GROUND AT THE ENGINE COOLANT
TEMPERATURE (ECT) SENSOR

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

ECT sensor electrical 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. TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t117.

G531332t117 : CHECK THE SENSOR GROUND AT THE MASS AIR FLOW (MAF)
SENSOR

1. Disconnect the MAF sensor electrical connector, PI14. 2. Measure the resistance between:

MAF sensor electrical 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. TEST the system for normal operation.

-> No

CHECK for DTCs indicating a sensor fault. Refer to the warranty policy and procedures manual if an

ECM is suspect.

PINPOINT TEST G531332p27 :
STARTER RELAY SIGNAL

G531332t111 : CHECK THE STARTER RELAY TO ECM CIRCUIT FOR SHORT
CIRCUIT TO GROUND

1. Key off. 2. Remove the starter relay. 3. Measure the resistance between:

Starter relay base

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 G531332t112.

G531332t112 : CHECK THE STARTER RELAY TO ECM CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. Measure the resistance between:

Starter relay base

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

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GO to Pinpoint Test G531332t133.

G531332t133 : CHECK THE STARTER RELAY TO ECM CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the ECM electrical connector, EC300. 2. Measure the resistance between:

Starter relay base ECM connector EC300, harness side

Pin 02

Pin 51

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 starter relay. Clear the DTC and test the system for normal operation. If the DTC

resets, refer to the warranty policy and procedures manual if an ECM is suspect.

PINPOINT TEST G531332p28 : LEFT-
HAND CAMSHAFT POSITION (CMP)
SENSOR CIRCUIT MALFUNCTION
RANGE/PERFORMANCE

G531332t135 : 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 G531332t136.

-> No

INSTALL the CMP sensor correctly.

Camshaft Position (CMP) Sensor LH (18.31.12) CLEAR the DTCs. TEST the system for normal

operation.

G531332t136 : CHECK THE CMP SENSOR FOR FOREIGN DEBRIS

1. Remove the CMP sensor and inspect for foreign debris.

Is the CMP sensor free of foreign debris?

-> Yes

GO to Pinpoint Test G531332t137.

-> No

CLEAN the sensor and wheel. INSTALL the sensor.

Camshaft Position (CMP) Sensor LH (18.31.12) CLEAR the DTCs. TEST the system for normal

operation.

G531332t137 : CHECK THE CMP SENSOR SENSING CIRCUIT FOR HIGH
RESISTANCE

1. Key off. 2. Disconnect the CMP sensor electrical connector, PI22. 3. Disconnect the ECM electrical

connector, PI300. 4. Measure the resistance between:

CMP sensor connector PI22, harness side ECM connector PI300, harness side

Pin 01

Pin 33

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 G531332t138.

G531332t138 : CHECK THE CMP SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO POWER

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

CMP sensor connector PI22, harness side

Battery

Pin 01

Negative terminal

Is the voltage greater than 3 volts?

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