Infiniti FX35 / FX45. Manual - part 493

 

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Infiniti FX35 / FX45. Manual - part 493

 

 

DTC P0011, P0021 IVT CONTROL

EC-733

< SERVICE INFORMATION >

[VK45DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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

Diagnosis Procedure

INFOID:0000000001326559

1.

CHECK OIL PRESSURE WARNING LAMP

1.

Start engine.

2.

Check oil pressure warning lamp and confirm it is not illumi-
nated.

OK or NG

OK

>> GO TO 2.

NG

>> Go to 

LU-23, "Inspection"

.

2.

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Loosen and retighten three ground screws on the body. 

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

11

BR

Intake valve timing control 
solenoid valve (Bank 2)

[Engine is running]
• Warm-up condition
• Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]
• Warm-up condition
• Engine speed: 2,000rpm

7 - 12V

53

R/L

Intake valve timing control 
position sensor (Bank 2)

[Engine is running]
• Warm-up condition
• Idle speed

0 - 1.0V

[Engine is running]
• Engine speed: 2,000 rpm

0 - 1.0V

111

W/B

ECM relay
(Self shut-off)

[Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition 

switch OFF

0 - 1.5V

[Ignition switch: OFF]
• More than a few seconds after turning igni-

tion switch OFF

BATTERY VOLTAGE
(11 - 14V)

119

120

R
R/B

Power supply for ECM

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

PBIB1790E

PBIB2046E

PBIA8559J

EC-734

< SERVICE INFORMATION >

[VK45DE]

DTC P0011, P0021 IVT CONTROL

Refer to 

EC-723, "Ground Inspection"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace ground connections.

3.

CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT

1.

Disconnect intake valve timing control position sensor harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between intake valve timing control position sen-
sor terminal 3 and ground with CONSULT-III or tester.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors E211, M41
• Harness connectors F102, M82
• Harness for open or short between intake valve timing control position sensor and ECM
• Harness for open or short between intake valve timing control position sensor and IPDM E/R

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

5.

CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND

SHORT

1.

Turn ignition switch OFF.

2.

Check harness continuity between intake valve timing control position sensor terminal 1 and ground.
Refer to Wiring Diagram.

3.

Also check harness for short to power. 

OK or NG

PBIB2195E

Voltage: Battery voltage

PBIB1517E

SEF509Y

Continuity should exist.

DTC P0011, P0021 IVT CONTROL

EC-735

< SERVICE INFORMATION >

[VK45DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

OK

>> GO TO 7.

NG

>> GO TO 6.

6.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors F102, M82
• Harness for open or short between intake valve timing control position sensor and ground

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

7.

CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN

AND SHORT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between the following;
ECM terminal 72 and intake valve timing control position sensor (Bank 1) terminal 2 or 
ECM terminal 53 and intake valve timing control position sensor (Bank 2) terminal 2.
Refer to Wiring Diagram.

3.

Also check harness for short to ground and 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 INTAKE VALVE TIMING CONTROL POSITION SENSOR

Refer to 

EC-737, "Component Inspection"

.

OK or NG

OK

>> GO TO 9.

NG

>> Replace malfunctioning intake valve timing control position sensor.

9.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

1.

Reconnect ECM harness connector.

2.

Disconnect intake valve timing control solenoid valve harness connector.

3.

Turn ignition switch ON.

4.

Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-III or tester.

OK or NG

OK

>> GO TO 11.

NG

>> GO TO 10.

10.

DETECT MALFUNCTIONING PART

Check the following.

Continuity should exist.

Voltage: Battery voltage

PBIB1517E

PBIB0192E

EC-736

< SERVICE INFORMATION >

[VK45DE]

DTC P0011, P0021 IVT CONTROL

• Harness connectors E19, F49
• Harness for open or short between intake valve timing control solenoid valve and IPDM E/R.

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

11.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN

AND SHORT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between the following;
ECM terminal 10 and intake valve timing control solenoid valve (Bank 1) terminal 1 or 
ECM terminal 11 and intake valve timing control solenoid valve (Bank 2) terminal 1.
Refer to Wiring Diagram.

3.

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

OK or NG

OK

>> GO TO 12.

NG

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

12.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to 

EC-737, "Component Inspection"

.

OK or NG

OK

>> GO TO 13.

NG

>> Replace malfunctioning intake valve timing control solenoid valve.

13.

CHECK CRANKSHAFT POSITION SENSOR (POS)

Refer to 

EC-910, "Component Inspection"

.

OK or NG

OK

>> GO TO 14.

NG

>> Replace crankshaft position sensor (POS).

14.

CHECK CAMSHAFT POSITION SENSOR (PHASE)

Refer to 

EC-915, "Component Inspection"

.

OK or NG

OK

>> GO TO 15.

NG

>> Replace camshaft position sensor (PHASE).

15.

CHECK CAMSHAFT SPROCKET

Check accumulation of debris to the signal pick-up portion of the camshaft sprocket. Refer to 

EM-211

.

OK or NG

OK

>> GO TO 16.

NG

>> Remove debris and clean the signal pick-up cutout of camshaft sprocket.

16.

CHECK TIMING CHAIN INSTALLATION

Check service records for any recent repairs that may cause timing chain misaligned.
Are there any service records that may cause timing chain misaligned?

Yes or No

Yes

>> Check timing chain installation. Refer to 

EM-199

.

No

>> GO TO 17.

17.

CHECK LUBRICATION CIRCUIT

Refer to 

EM-211, "Removal and Installation"

.

OK or NG

OK

>> GO TO 18.

NG

>> Clean lubrication line.

18.

CHECK INTERMITTENT INCIDENT

Continuity should exist.

 

 

 

 

 

 

 

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