Jaguar XJ (X350). Manual — part 1012

PINPOINT TEST G549822p14 :
CRANKSHAFT POSITION (CKP)
SENSOR

G549822t182 : CHECK THE CKP CIRCUITS FOR SHORT CIRCUIT TO GROUND

1.

Circuit

Pin

Crankshaft position sensor - signal

02

Crankshaft position sensor - positive

01

Crankshaft position sensor - negative 03

2.

Circuit

Pin

Crankshaft position sensor - signal

F1

Crankshaft position sensor - positive

G1

Crankshaft position sensor - negative G2

3. Key off. 4. Disconnect the ECM connector, C101. 5. Key on, engine off. 6. Measure the resistance

between:

C101, harness side

Battery

Pin G2

Negative terminal

Pin G1

Negative terminal

Pin F1

Negative terminal

Are the resistances greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G549822t183.

-> No

REPAIR the short circuit to ground in the CKP harness or component. For additional information,

refer to the wiring diagrams. Clear any DTCs, test the system for normal operation.

G549822t183 : CHECK THE CKP CIRCUITS FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

C101, harness side

Battery

Pin G2

Positive terminal

Pin G1

Positive terminal

Pin F1

Positive terminal

Are the resistances greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G549822t184.

-> No

REPAIR the short circuit to ground in the CKP harness or component. For additional information,

refer to the wiring diagrams. Clear any DTCs, test the system for normal operation.

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G549822t184 : CHECK THE CKP CIRCUIT RESISTANCE

1. Measure the resistance between:

C101, harness side C101, harness side

Pin G2

Pin F1

Is the resistance between 100 - 120 Kohms?

-> Yes

GO to Pinpoint Test G549822t185.

-> No

REPAIR the out of limits resistance in the CKP harness or component. This may be due to a short or

open circuit, depending on the result of the last measurement. For additional information, refer to

the wiring diagrams. Clear any DTCs, test the system for normal operation.

G549822t185 : CHECK THE CKP CIRCUIT RESISTANCE

1. Measure the resistance between:

C101, harness side C101, harness side

Pin G1

Pin F1

Pin G1

Pin G2

Are the resistances greater than 100 Kohms?

-> Yes

An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other

physical damage to the harness. If no fault is found in the circuit, suspect the following

component(s): - Open circuit in sensor power line - CKP connector - CKP sensor - Crankshaft sensor

target wheel - ECM connector - ECM

-> No

REPAIR the out of limits resistance in the CKP harness or component. This may be due to a short or

open circuit, depending on the result of the last measurement. For additional information, refer to

the wiring diagrams. Clear any DTCs, test the system for normal operation.

PINPOINT TEST G549822p15 :
CAMSHAFT POSITION (CMP) SENSOR

G549822t186 : CHECK THE CMP CIRCUITS FOR SHORT CIRCUIT TO GROUND

1.

Circuit

Pin

Camshaft position sensor - signal

01

Camshaft position sensor - return 02

Camshaft position sensor - power 03

2.

Circuit

Pin

Camshaft position sensor - signal

G4

Camshaft position sensor - return H3

Camshaft position sensor - power H4

3. Key off. 4. Disconnect the ECM connector, C101. 5. Key on, engine off. 6. Measure the resistance

between:

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