Nissan Murano Z50 (2003 year). Manual - part 100

DTC P0327, P0328 KS

EC-319

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Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Diagnostic Procedure

ABS004FV

1. 

CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I

1.

Turn ignition switch “OFF”.

2.

Disconnect ECM harness connector.

3.

Check resistance between ECM terminal 15 and engine ground. Refer to Wiring Diagram.

NOTE:
It is necessary to use an ohmmeter which can measure more than 10 M

Ω

.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 2.

2. 

CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II

1.

Disconnect knock sensor harness connector.

2.

Check harness continuity between ECM terminal 15 and knock
sensor terminal 1. 
Refer to Wiring Diagram.

3.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F9, F241

●

Harness for open or short between ECM and knock sensor

>> Repair open circuit or short to ground or short to power in harness or connectors.

4. 

CHECK KNOCK SENSOR

Refer to 

EC-320, "Component Inspection"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Replace knock sensor.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

15

W

Knock sensor

[Engine is running]

●

Idle speed

Approximately 2.5V

Resistance: Approximately 532 - 588 k

Ω

 [at 20

°

C (68

°

F)]

Continuity should exist.

PBIB1359E

EC-320

DTC P0327, P0328 KS

Revision; 2004 April

2003 Murano

5. 

RETIGHTEN GROUND SCREWS

Loosen and retighten engine ground screws.

>> GO TO 6.

6. 

CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch “OFF”.

2.

Disconnect knock sensor harness connector.

3.

Check harness continuity between knock sensor terminal 2 and engine ground. Refer to Wiring Diagram.

OK or NG

OK

>> GO TO 8.

NG

>> GO TO 7.

7. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F9, F241

●

Harness connectors F102, M82

●

Joint connector-1

●

Harness for open or short between knock sensor terminal 2 and engine ground

>> Repair open circuit or short power in harness or connectors.

8. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Component Inspection

ABS004FW

KNOCK SENSOR

Check resistance between knock sensor terminal 1 and ground.
NOTE:
It is necessary to use an ohmmeter which can measure more
than 10 M

Ω

.

CAUTION:

Do not use any knock sensors that have been dropped or phys-
ically damaged. Use only new ones.

PBIB1298E

Continuity should exist.

Resistance: Approximately 532 - 588 k

Ω

 [at 20

°

C (68

°

F)]

SEF111Y

DTC P0327, P0328 KS

EC-321

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Removal and Installation

ABS004FX

KNOCK SENSOR

Refer to 

EM-100, "CYLINDER BLOCK"

 .

EC-322

DTC P0335 CKP SENSOR (POS)

Revision; 2004 April

2003 Murano

DTC P0335 CKP SENSOR (POS)

PFP:23731

Component Description

ABS004FY

The crankshaft position sensor (POS) is located on the oil pan facing
the gear teeth (cogs) of the signal plate. It detects the fluctuation of
the engine revolution.
The sensor consists of a permanent magnet and Hall IC.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.

CONSULT-II Reference Value in Data Monitor Mode

ABS004FZ

Specification data are reference values.

On Board Diagnosis Logic

ABS004G0

DTC Confirmation Procedure

ABS004G1

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V with igni-
tion switch “ON”.

 WITH CONSULT-II

1.

Turn ignition switch “ON” and select “DATA MONITOR” mode
with CONSULT-II.

2.

Crank engine for at least 2 seconds and run it for at least 5 sec-
onds at idle speed.

3.

If 1st trip DTC is detected, go to 

EC-324, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB0562E

MONITOR ITEM 

CONDITION

SPECIFICATION 

ENG SPEED

●

Run engine and compare CONSULT-II value with the tachometer indica-
tion.

Almost the same speed as the 
tachometer indication. 

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0335
0335

Crankshaft position 
sensor (POS) circuit

●

The crankshaft position sensor (POS) signal 
is not detected by the ECM during the first 
few seconds of engine cranking.

●

The proper pulse signal from the crankshaft 
position sensor (POS) is not sent to ECM 
while the engine is running.

●

The crankshaft position sensor (POS) signal 
is not in the normal pattern during engine 
running.

●

Harness or connectors
(The sensor circuit is open or shorted)

●

Crankshaft position sensor (POS)

●

Signal plate

SEF058Y

DTC P0335 CKP SENSOR (POS)

EC-323

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Wiring Diagram

ABS004G2

TBWA0367E

EC-324

DTC P0335 CKP SENSOR (POS)

Revision; 2004 April

2003 Murano

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

ABS004G3

1. 

RETIGHTEN GROUND SCREWS

1.

Turn ignition switch “OFF”.

2.

Loosen and retighten engine ground screws.

>> GO TO 2.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

13

W

Crankshaft position sensor 
(POS)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 1.6V

[Engine is running]

●

Engine speed is 2,000 rpm.

Approximately 1.4V

PBIB1041E

PBIB1042E

PBIB1298E

DTC P0335 CKP SENSOR (POS)

EC-325

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2. 

CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT

1.

Disconnect crankshaft position (CKP) sensor (POS) harness connector.

2.

Turn ignition switch “ON”.

3.

Check voltage between CKP sensor (POS) terminal 1 and
ground with CONSULT-II or tester.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E110, M7

●

Harness connectors M82, F102

●

Harness for open or short between crankshaft position sensor (POS) and ECM 

●

Harness for open or short between crankshaft position sensor (POS) and IPDM E/R

>> Repair open circuit or short to ground or short to power in harness or connectors.

4. 

CHECK CKP SENSOR (POS) GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch “OFF”.

2.

Check harness continuity between CKP sensor (POS) terminal 3 and engine ground. Refer to Wiring Dia-
gram.

3.

Also check harness for short to power.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 5.

Voltage: Battery voltage

PBIB1360E

PBIB0664E

Continuity should exist.

EC-326

DTC P0335 CKP SENSOR (POS)

Revision; 2004 April

2003 Murano

5. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F102, M82

●

Joint connector-2

●

Harness for open or short between crankshaft position sensor (POS) and ground 

>> Repair open circuit or short to power in harness or connectors.

6. 

CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between ECM terminal 13 and CKP sensor (POS) terminal 2.
Refer to Wiring Diagram.

3.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 7.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

7. 

CHECK CRANKSHAFT POSITION SENSOR (POS)

Refer to 

EC-327, "Component Inspection"

 .

OK or NG

OK

>> GO TO 8.

NG

>> Replace crankshaft position sensor (POS).

8. 

CHECK GEAR TOOTH

Visually check for chipping signal plate gear tooth.

OK or NG

OK

>> GO TO 9.

NG

>> Replace the signal plate.

9. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Continuity should exist.

DTC P0335 CKP SENSOR (POS)

EC-327

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Component Inspection

ABS004G4

CRANKSHAFT POSITION SENSOR (POS)

1.

Loosen the fixing bolt of the sensor.

2.

Disconnect crankshaft position sensor (POS) harness connector.

3.

Remove the sensor.

4.

Visually check the sensor for chipping.

5.

Check resistance as shown in the figure.

Removal and Installation

ABS004G5

CRANKSHAFT POSITION SENSOR (POS)

Refer to 

EM-26, "OIL PAN AND OIL STRAINER"

 .

PBIB0563E

Terminal No. (Polarity)

Resistance 

Ω

 [at 25

°

C (77

°

F)]

1 (+) - 2 (-)

Except 0 or 

∞

1 (+) - 3 (-)

2 (+) - 3 (-)

PBIB0564E

EC-328

DTC P0340, P0345 CMP SENSOR (PHASE)

Revision; 2004 April

2003 Murano

DTC P0340, P0345 CMP SENSOR (PHASE)

PFP:23731

Component Description

ABS004G6

The camshaft position sensor (PHASE) senses the retraction of
intake valve camshaft to identify a particular cylinder. The camshaft
position sensor (PHASE) senses the piston position.
When the crankshaft position sensor (POS) system becomes inoper-
ative, the camshaft position sensor (PHASE) provides various con-
trols of engine parts instead, utilizing timing of cylinder identification
signals.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor changes. 

On Board Diagnosis Logic

ABS004G7

DTC Confirmation Procedure

ABS004G8

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V with igni-
tion switch “ON”.

 WITH CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Crank engine for at least 2 seconds and run it for at least 5 sec-
onds at idle speed.

4.

If 1st trip DTC is detected, go to 

EC-332, "Diagnostic Procedure"

.
If 1st trip DTC is not detected, go to next step.

5.

Maintaining engine speed at more than 800 rpm for at least 5
seconds.

6.

If 1st trip DTC is detected, go to 

EC-332, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB0562E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0340
0340
(Bank 1)

Camshaft position sen-
sor (PHASE) circuit

●

The cylinder No. signal is not sent to ECM 
for the first few seconds during engine 
cranking.

●

The cylinder No. signal is not sent to ECM 
during engine running.

●

The cylinder No. signal is not in the normal 
pattern during engine running.

●

Harness or connectors
(The sensor circuit is open or shorted)

●

Camshaft position sensor (PHASE)

●

Camshaft (Intake)

●

Starter motor (Refer to 

SC-10

 .)

●

Starting system circuit (Refer to 

SC-10

 .)

●

Dead (Weak) battery

P0345
0345
(Bank 2)

SEF013Y

DTC P0340, P0345 CMP SENSOR (PHASE)

EC-329

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Wiring Diagram

ABS004G9

BANK 1

TBWA0368E

EC-330

DTC P0340, P0345 CMP SENSOR (PHASE)

Revision; 2004 April

2003 Murano

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

33

Y

Camshaft position sensor 
(PHASE) (bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

1.0 - 4.0V

[Engine is running]

●

Engine speed is 2,000 rpm.

1.0 - 4.0V

PBIB1039E

PBIB1040E

DTC P0340, P0345 CMP SENSOR (PHASE)

EC-331

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BANK 2

TBWA0369E

EC-332

DTC P0340, P0345 CMP SENSOR (PHASE)

Revision; 2004 April

2003 Murano

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

ABS004GA

1. 

CHECK STARTING SYSTEM

Turn ignition switch to “START” position.

Yes or No

Yes

>> GO TO 2.

No

>> Check starting system. (Refer to 

SC-10, "STARTING SYSTEM"

 .)

2. 

RETIGHTEN GROUND SCREWS

1.

Turn ignition switch “OFF”.

2.

Loosen and retighten engine ground screws.

>> GO TO 3.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

14

W

Camshaft position sensor 
(PHASE) (bank 2)

[Engine is running]

●

Warm-up condition

●

Idle speed

1.0 - 4.0V

[Engine is running]

●

Engine speed is 2,000 rpm.

1.0 - 4.0V

PBIB1039E

PBIB1040E

Does the engine turn over?

Does the starter motor operate?

PBIB1298E

DTC P0340, P0345 CMP SENSOR (PHASE)

EC-333

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3. 

CHECK CAMSHAFT POSITION (CMP) SENSOR (PHASE) POWER SUPPLY CIRCUIT

1.

Disconnect camshaft position (CMP) sensor (PHASE) harness connector.

2.

Turn ignition switch “ON”.

3.

Check voltage between CMP sensor (PHASE) terminal 3 and
ground with CONSULT-II or tester.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E110, M7

●

Harness connectors M82, F102

●

Harness for open or short between camshaft position sensor (PHASE) and ECM

●

Harness for open or short between camshaft position sensor (PHASE) and IPDM E/R

>> Repair open circuit or short to ground or short to power in harness or connectors.

5. 

CHECK CMP SENSOR (PHASE) GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch “OFF”.

2.

Check harness continuity between CMP sensor (PHASE) terminal 1 and engine ground.

3.

Also check harness for short to power.

OK or NG

OK

>> GO TO 7.

NG

>> GO TO 6.

6. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F102, M82

●

Joint connector-2

●

Harness for open or short between CMP sensor (PHASE) and engine ground

>> Repair open circuit or short to power in harness or connectors.

Voltage: Battery voltage

PBIB1361E

SEF481Y

Continuity should exist.

EC-334

DTC P0340, P0345 CMP SENSOR (PHASE)

Revision; 2004 April

2003 Murano

7. 

CHECK CMP SENSOR (PHASE) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between ECM terminal 33 or 14 and CMP sensor (PHASE) terminal 2. 
Refer to Wiring Diagram.

3.

Also check harness for short to ground or short to power.

OK or NG

OK

>> GO TO 8.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

8. 

CHECK CAMSHAFT POSITION SENSOR (PHASE)

Refer to 

EC-335, "Component Inspection"

 .

OK or NG

OK

>> GO TO 9.

NG

>> Replace camshaft position sensor (PHASE).

9. 

CHECK CAMSHAFT (INTAKE)

Check the following.

●

Accumulation of debris to the signal plate of camshaft rear end

●

Chipping signal plate of camshaft rear end

OK or NG

OK

>> GO TO 10.

NG

>> Remove debris and clean the signal plate of camshaft

rear end or replace camshaft.

10. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Continuity should exist.

SEC905C