Infiniti EX35. Manual - part 627

 

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Infiniti EX35. Manual - part 627

 

 

EC-250

< COMPONENT DIAGNOSIS >

[VQ35HR]

P0327, P0328, P0332, P0333 KS

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors F9, F201
• Harness for open or short between knock sensor and ECM

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

4.

CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check the continuity between knock sensor harness connector and ECM harness connector.

2.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors F9, F201
• 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.

6.

CHECK KNOCK SENSOR

Refer to 

EC-250, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace malfunctioning knock sensor.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003133410

1.

CHECK KNOCK SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect knock sensor harness connector.

3.

Check resistance between knock sensor terminals as follows.
NOTE:

DTC

Knock sensor

ECM

Continuity

Bank

Connector

Terminal

Connector

Terminal

P0327, P0328

1

F203

2

F102

72

Existed

P0332, P0333

2

F202

2

DTC

Knock sensor

ECM

Continuity

Bank

Connector

Terminal

Connector

Terminal

P0327, P0328

1

F203

1

F102

73

Existed

P0332, P0333

2

F202

1

69

P0327, P0328, P0332, P0333 KS

EC-251

< COMPONENT DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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 physically damaged. Use only new ones.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning knock sensor.

Terminals

Resistance

1 and 2

Approx. 532 - 588 k

 [at 20

°

C (68

°

F)]

EC-252

< COMPONENT DIAGNOSIS >

[VQ35HR]

P0335 CKP SENSOR (POS)

P0335 CKP SENSOR (POS)

Description

INFOID:0000000003133411

The crankshaft position sensor (POS) is located on the cylinder
block 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.

DTC Logic

INFOID:0000000003133412

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.

JMBIA0062ZZ

JMBIA0001GB

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0335

Crankshaft position sen-
sor (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 run-
ning.

• Harness or connectors

[CKP sensor (POS) circuit is open or 
shorted.]
[CMP sensor (PHASE) (bank 2) circuit is 
shorted.]
[EVT control position sensor (bank 2) cir-
cuit is shorted.]
(Battery current sensor circuit is shorted.)
(APP sensor 2 circuit is shorted.)
(EVAP control system pressure sensor 
circuit is shorted.)
(Refrigerant pressure sensor circuit is 
shorted.)

• Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE) 

(bank 2)

• Exhaust valve timing control position sen-

sor (bank 2)

• Battery current sensor
• Accelerator pedal position sensor
• EVAP control system pressure sensor
• Refrigerant pressure sensor
• Signal plate

P0335 CKP SENSOR (POS)

EC-253

< COMPONENT DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V with igni-
tion switch ON.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and let it idle for at least 5 seconds.
If engine does not start, crank engine for at least 2 seconds.

2.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to 

EC-253, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003133413

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection M95. Refer to Ground Inspection in 

GI-41, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

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

1.

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

2.

Turn ignition switch ON.

3.

Check the voltage between CKP sensor (POS) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 3.

3.

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

1.

Turn ignition switch ON.

2.

Disconnect ECM harness connector.

3.

Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit.

4.

CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

CKP sensor (POS)

Ground

Voltage (V)

Connector

Terminal

F2

1

Ground

Approx. 5

CKP sensor (POS)

ECM

Continuity

Connector

Terminal

Connector

Terminal

F2

1

F101

46

Existed

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F101

46

CKP sensor (POS)

F2

1

 

 

 

 

 

 

 

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