Infiniti M35/M45 Y50. Manual - part 650

 

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Infiniti M35/M45 Y50. Manual - part 650

 

 

DTC P0327, P0328, P0332, P0333 KS

EC-1073

[VK45DE]

C

D

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F

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EC

5. 

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Loosen and retighten ground screws on the body.
Refer to 

EC-864, "Ground Inspection"

 .

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace ground connections.

6. 

CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT

1.

Disconnect knock sensor harness connector.

2.

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

3.

Also check harness for short to power.

OK or NG

OK

>> GO TO 8.

NG

>> GO TO 7.

7. 

DETECT MALFUNCTIONING PART

Check the following.

Harness connectors F47, F241

Harness connectors F102, M72

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

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

8. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-857, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

1.

Body ground M70

2.

Body ground M16

PBIB2782E

Continuity should exist.

EC-1074

[VK45DE]

DTC P0327, P0328, P0332, P0333 KS

Component Inspection

NBS005GB

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

.

CAUTION:

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

Removal and Installation

NBS005GC

KNOCK SENSOR

Refer to 

EM-252, "CYLINDER BLOCK"

 .

Resistance: Approximately 532 - 588 k

 [at 20

°

C (68

°

F)]

SEF111Y

DTC P0335 CKP SENSOR (POS)

EC-1075

[VK45DE]

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EC

DTC P0335 CKP SENSOR (POS)

PFP:23731

Component Description

NBS005GD

The crankshaft position sensor (POS) is located on the A/T con-
verter housing 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.
ECM receives the signals as shown in the figure.

CONSULT-II Reference Value in Data Monitor Mode

NBS005GE

Specification data are reference values.

On Board Diagnosis Logic

NBS005GF

PBIB0562E

PBIB2448E

MONITOR ITEM

CONDITION

SPECIFICATION

ENG SPEED

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

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

EC-1076

[VK45DE]

DTC P0335 CKP SENSOR (POS)

DTC Confirmation Procedure

NBS005GG

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-1078, "Diagnostic Proce-

dure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

SEF058Y

 

 

 

 

 

 

 

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