Infiniti M45 (Y34). Manual — part 366



DTC P0011, P0021 IVT CONTROL

EC-153

C

D

E

F

G

H

I

J

K

L

M

A

EC

2.

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-II or tester.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.

Harness connectors M135, F105

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 ECM relay

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

4.

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

OK

>> GO TO 6.

NG

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the following.

Joint connector-29

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.

Voltage: Battery voltage

PBIB1115E

SEF509Y

Continuity should exist.

EC-154

DTC P0011, P0021 IVT CONTROL

6.

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 73 (bank 1) and intake valve timing control position sensor terminal 2, or
ECM terminal 74 (bank 2) and intake valve timing control position sensor 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 INTAKE VALVE TIMING CONTROL POSITION SENSOR

Refer to

EC-155, "Component Inspection"

.

OK or NG

OK

>> GO TO 8.

NG

>> Replace intake valve timing control position sensor.

8.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

1.

Disconnect intake valve timing control solenoid valve harness connector.

2.

Turn ignition switch ON.

3.

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

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 9.

9.

DETECT MALFUNCTIONING PART

Check the following.

Harness connectors M135, F105

Harness for open or short between intake valve timing control solenoid valve and ECM relay.

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

Continuity should exist.

Voltage: Battery voltage

PBIB1115E

PBIB0192E

DTC P0011, P0021 IVT CONTROL

EC-155

C

D

E

F

G

H

I

J

K

L

M

A

EC

10.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR

OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between the following;
ECM terminal 152 (bank 1) and intake valve timing control solenoid valve terminal 1 or
ECM terminal 155 (bank 2) and intake valve timing control solenoid valve terminal 1.
Refer to Wiring Diagram.

4.

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

OK or NG

OK

>> GO TO 11.

NG

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

11.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to

EC-155, "Component Inspection"

.

OK or NG

OK

>> GO TO 12.

NG

>> Replace intake valve timing control solenoid valve.

12.

CHECK CRANKSHAFT POSITION SENSOR (POS)

Refer to

EC-316, "Component Inspection"

.

OK or NG

OK

>> GO TO 13.

NG

>> Replace crankshaft position sensor (POS).

13.

CHECK CAMSHAFT POSITION SENSOR (PHASE)

Refer to

EC-321, "Component Inspection"

.

OK or NG

OK

>> GO TO 14.

NG

>> Replace camshaft position sensor (PHASE).

14.

CHECK CAMSHAFT

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

EM-49, "CAMSHAFT"

.

OK or NG

OK

>> GO TO 15.

NG

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

15.

CHECK INTERMITTENT INCIDENT

Refer to

EC-132, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

For wiring diagram, refer to

EC-310

for CKP sensor (POS), and

EC-318

for CMP sensor (PHASE).

>> INSPECTION END

Component Inspection

ABS002EI

INTAKE VALVE TIMING CONTROL POSITION SENSOR

1.

Disconnect intake valve timing control position sensor harness connector.

2.

Loosen the fixing bolt of the sensor.

3.

Remove the sensor.

Continuity should exist.

EC-156

DTC P0011, P0021 IVT CONTROL

4.

Visually check the sensor for chipping.

5.

Check resistance as shown below.

6.

If NG, replace intake valve timing control position sensor.

INTAKE VALVE TIMING CONTROL SOLENOID VALVE

1.

Disconnect intake valve timing control solenoid valve harness connector.

2.

Check resistance between intake valve timing control solenoid
valve terminals as follows.

Removal and Installation

ABS002EJ

INTAKE VALVE TIMING CONTROL POSITION SENSOR

Refer to

EM-38, "TIMING CHAIN"

.

INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to

EM-38, "TIMING CHAIN"

.

SEF362Z

Terminal No. (Polarity)

Resistance

[at 25

°

C (77

°

F)]

3 (+) - 1 (-)

Except 0 or

2 (+) - 1 (-)

3 (+) - 2 (-)

PBIB0194E

Terminals

Resistance

1 and 2

7.0 - 7.5

at [20

°

C (68

°

F)]

1 or 2 and ground

∞Ω

(Continuity should not exist)

PBIB0193E

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