Jaguar XJ (X350). Manual — part 944

-> 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 G531332t55.

G531332t55 : CHECK KS SENSING CIRCUIT FOR SHORT CIRCUIT TO GROUND

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

KS connector PI19, harness side

Battery

Pin 04

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

GO to Pinpoint Test G531332t56.

G531332t56 : CHECK KS GROUND CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between:

KS connector PI19, harness side ECM connector PI300, harness side

Pin 03

Pin 19

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

INSTALL a new KS.

Knock Sensor (KS) LH (18.30.92) CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G531332p16 : LEFT-
HAND KNOCK SENSOR (KS)
HIGH/LOW VOLTAGE

G531332t57 : CHECK KS SENSING CIRCUIT FOR HIGH RESISTANCE

1. Key off. 2. Disconnect the KS electrical connector, PI19. 3. Disconnect the ECM electrical

connector, PI300. 4. Measure the resistance between:

KS connector PI19, harness side ECM connector PI300, harness side

Pin 02

Pin 43

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 G531332t58.

G531332t58 : CHECK KS SENSING CIRCUIT FOR SHORT CIRCUIT TO POWER

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

KS connector PI19, 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 G531332t59.

www.

G531332t59 : CHECK KS SENSING CIRCUIT FOR SHORT CIRCUIT TO GROUND

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

KS connector PI19, 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

GO to Pinpoint Test G531332t60.

G531332t60 : CHECK KS GROUND CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between:

KS connector PI19, harness side ECM connector PI300, harness side

Pin 01

Pin 20

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

INSTALL a new KS.

Knock Sensor (KS) LH (18.30.92) CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G531332p17 :
CRANKSHAFT POSITION (CKP)
SENSOR CIRCUIT

RANGE/PERFORMANCE, CIRCUIT
MALFUNCTION

G531332t61 : CHECK THE CKP SENSOR FOR CORRECT INSTALLATION

1. Key off. 2. Check the CKP sensor for correct installation.

Is the CKP sensor correctly installed?

-> Yes

GO to Pinpoint Test G531332t62.

-> No

INSTALL the CKP sensor correctly.

Crankshaft Position (CKP) Sensor (18.30.12) Reconnect the sensor. CLEAR the DTCs. TEST the system

for normal operation.

G531332t62 : CHECK THE CKP SENSOR FOR DEBRIS

1. Remove the CKP sensor and inspect for debris.

Is the CKP sensor free of debris?

-> Yes

GO to Pinpoint Test G531332t63.

-> No

CLEAN the sensor and wheel. INSTALL the sensor.

Crankshaft Position (CKP) Sensor (18.30.12) Reconnect the sensor. CLEAR the DTCs. TEST the system

for normal operation.

G531332t63 : CHECK THE CKP SENSOR SENSING CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the ECM electrical connector, PI300. 2. Disconnect the CKP sensor electrical connector,

PI21. 3. Measure the resistance between:

CKP sensor connector PI21, harness side ECM connector PI300, harness side

Pin 02

Pin 30

Is the resistance greater than 5 ohms?

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