Infiniti QX56 (Z62). Manual - part 580

 

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Infiniti QX56 (Z62). Manual - part 580

 

 

EC-298

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

P0327, P0328, P0332, P0333 KS

• Harness for open or short between knock sensor and ECM
• Loose or poor connection for each connector and harness

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

3.

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 5.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.
• Harness for open or short between ECM and knock sensor
• Loose or poor connection for each connector and harness

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

5.

CHECK KNOCK SENSOR

Refer to 

EC-298, "Component Inspection (Knock Sensor)"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace malfunctioning knock sensor. Refer to 

EM-106, "Exploded View"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (Knock Sensor)

INFOID:0000000006217844

1.

CHECK KNOCK SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect knock sensor harness connector.

3.

Check resistance between knock sensor terminals as per the following.
NOTE:
It is necessary to use an ohmmeter which can measure more than 10 M

.

CAUTION:

Never 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. Refer to 

EM-106, "Exploded View"

.

DTC

Knock sensor

ECM

Continuity

Bank

Connector

Terminal

Connector

Terminal

P0327, P0328

1

F203

1

F111

29

Existed

P0332, P0333

2

F204

1

33

Terminals

Resistance

1 and 2

Approx. 532 - 588 k

 [at 20

°

C (68

°

F)]

P0335 CKP SENSOR

EC-299

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P0335 CKP SENSOR

DTC Logic

INFOID:0000000006217845

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 10.5 V or more with ignition
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-299, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006217846

1.

CHECK CRANKSHAFT POSITION SENSOR POWER SUPPLY CIRCUIT-I

1.

Disconnect crankshaft position (CKP) sensor harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between CKP sensor harness connector and ground.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0335

CKP SEN/CIRCUIT
(Crankshaft position sensor 
circuit)

• The crankshaft position sensor signal is 

not detected by the ECM during the first 
few seconds of engine cranking.

• The proper pulse signal from the crank-

shaft position sensor is not sent to ECM 
while the engine is running.

• The crankshaft position sensor signal is 

not in the normal pattern during engine 
running.

• Harness or connectors

(Crankshaft position sensor circuit is open or 
shorted.)
(Accelerator pedal position sensor 2 circuit is 
shorted.)
(Battery current sensor circuit is shorted.)
[Camshaft position sensor (bank 1) circuit is 
shorted.]
(Refrigerant pressure sensor circuit is open 
or shorted.)
(EVAP control system pressure sensor circuit 
is open or shorted.)

• Crankshaft position sensor
• Accelerator pedal position sensor
• Battery current sensor
• Camshaft position sensor (bank 1)
• Refrigerant pressure sensor
• EVAP control system pressure sensor
• Signal plate

CKP sensor

Ground

Voltage (V)

Connector

Terminal

F74

1

Ground

Approx. 5

EC-300

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

P0335 CKP SENSOR

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 2.

2.

CHECK CKP SENSOR POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch ON.

2.

Disconnect ECM harness connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair open circuit.

3.

CHECK SENSOR POWER SUPPLY CIRCUIT

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

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

4.

CHECK COMPONENTS

Check the following.
• Battery current sensor (Refer to 

EC-414, "Component Inspection (Battery Current Sensor)"

.)

• Camshaft position sensor (bank 1) (Refer to 

EC-306, "Component Inspection (Camshaft Position Sensor)"

.)

• Refrigerant pressure sensor (Refer to 

EC-520, "Component Function Check"

.)

• EVAP control system pressure sensor (Refer to 

EC-335, "Component Inspection (EVAP Control System

Pressure Sensor)"

.)

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning component.

5.

CHECK APP SENSOR

Refer to 

EC-470, "Component Inspection (Accelerator Pedal Position Sensor)"

.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 6.

6.

REPLACE ACCELERATOR PEDAL ASSEMBLY

Replace accelerator pedal assembly. Refer to 

ACC-3, "MODELS WITHOUT DISTANCE CONTROL ASSIST

SYSTEM : Removal and Installation"

 (Without distance control assist system) or 

ACC-4, "MODELS WITH

DISTANCE CONTROL ASSIST SYSTEM : Removal and Installation"

 (With distance control assist system).

CKP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F74

1

F110

76

Existed

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F110

76

CKP sensor

F74

1

77

Camshaft position sensor (bank 1)

F84

1

E80

131

APP sensor 2 (Without ICC)

E110

1

APP sensor 2 (With ICC)

E67

9

133

Battery current sensor

E63

2

Refrigerant pressure sensor

E77

1

EVAP control system pressure sen-
sor

C17

3

P0335 CKP SENSOR

EC-301

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

>> INSPECTION END

7.

CHECK CKP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

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

4.

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

Is the inspection result normal?

YES

>> GO TO 8.

NO

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

8.

CHECK CKP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check the continuity between CKP 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 9.

NO

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

9.

CHECK CRANKSHAFT POSITION SENSOR

Refer to 

EC-301, "Component Inspection (Crankshaft Position Sensor)"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace crankshaft position sensor.

10.

CHECK GEAR TOOTH

Visually check for chipping signal plate gear tooth.
Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Replace the signal plate.

11.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (Crankshaft Position Sensor)

INFOID:0000000006217847

1.

CHECK CRANKSHAFT POSITION SENSOR-I

1.

Turn ignition switch OFF.

2.

Loosen the fixing bolt of the sensor.

3.

Disconnect crankshaft position sensor harness connector.

4.

Remove the sensor.

CKP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F74

2

F110

98

Existed

CKP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F74

3

F110

86

Existed

 

 

 

 

 

 

 

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