Infiniti F50. Manual - part 376

 

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Infiniti F50. Manual - part 376

 

 

DTC P0011, P0021 IVT CONTROL

EC-145

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EC

Intake Valve Timing Control Position Sensor

Intake valve timing control position sensors are located in the front of
cylinder heads in both bank 1 and bank 2.
This sensor uses a Hall IC.
The cam position is determined by the intake primary cam sprocket
concave (in three places). The ECM provides feedback to the intake
valve timing control for appropriate target valve open-close timing
according to drive conditions based on detected cam position.

CONSULT-II Reference Value in Data Monitor Mode

EBS00LWP

Specification data are reference values.

On Board Diagnosis Logic

EBS00LWQ

FAIL-SAFE MODE

When the malfunction is detected, the ECM enters fail-safe mode.

SEF359Z

MONITOR ITEM

CONDITION

SPECIFICATION

INT/V TIM (B1)
INT/V TIM (B2)

Engine: After warming up

Selector lever: P or N

Air conditioner switch: OFF

No load

Idle

5

°

 - 5

°

CA

When revving engine up to 2,000 rpm 
quickly

Approx. 0

°

 - 20

°

CA

INT/V SOL (B1)
INT/V SOL (B2)

Engine: After warming up

Selector lever: P or N

Air conditioner switch: OFF

No load

Idle

0% - 2%

When revving engine up to 2,000 rpm 
quickly

Approx. 25% - 50%

DTC No.

Trouble diagnosis name

Detecting condition

Possible cause

P0011
0011
(Bank 1)

Intake valve timing control 
performance

A

The alignment of the intake valve timing 
control has been misresistered.

Harness or connectors
(Intake valve timing control solenoid 
valve circuit is open or shorted.)

Harness or connectors
(Intake valve timing control position 
sensor circuit is open or shorted.)

Intake valve timing control solenoid 
valve

Intake valve timing control position 
sensor

Crankshaft position sensor (POS)

Camshaft position sensor (PHASE)

Accumulation of debris to the signal 
pick-up portion of the camshaft

P0021
0021
(Bank 2)

B

There is a gap between angle of target 
and phase-control angle degree.

Detected items

Engine operating condition in fail-safe mode

Intake valve timing control

The signal is not energized to the solenoid valve and the valve control does not function

EC-146

DTC P0011, P0021 IVT CONTROL

DTC Confirmation Procedure

EBS00LWR

CAUTION:

Always drive at a safe speed.
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 between 10V and 16V at
idle.

PROCEDURE FOR MALFUNCTION A

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Maintain the following conditions for at least 10 consecutive sec-
onds.

4.

Maintain the following conditions for at least 20 consecutive sec-
onds.

5.

If the 1st trip DTC is detected, go to 

EC-151, "Diagnostic Procedure"

 .

 With GST

Follow the procedure “With CONSULT-II” above.

PROCEDURE FOR MALFUNCTION B

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Maintain the following conditions for at least 10 consecutive sec-
onds.

4.

If the 1st trip DTC is detected, go to 

EC-151, "Diagnostic Proce-

dure"

 .

 With GST

Follow the procedure “With CONSULT-II” above.

ENG SPEED

More than 2,000 rpm (A constant rotation is maintained.)

COOLAN TEMP/S

More than 70

°

C (158

°

F)

Selector lever

1st or 2nd position

Driving location uphill

Driving vehicle uphill
(Increased engine load will help maintain the driving con-
ditions required for this test.)

ENG SPEED

Idle

COOLAN TEMP/S

More than 70

°

C (158

°

F)

Selector lever

“P” or “N” position

SEF353Z

ENG SPEED

2,000 - 3,000 rpm (A constant rotation is maintained.)

COOLAN TEMP/S

80 - 90

°

C (176 - 194

°

F)

Selector lever

1st or 2nd position

Driving location uphill

Driving vehicle uphill
(Increased engine load will help maintain the driving con-
ditions required for this test.)

SEF353Z

DTC P0011, P0021 IVT CONTROL

EC-147

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Wiring Diagram

EBS00LWS

BANK 1

TBWM0211E

EC-148

DTC P0011, P0021 IVT CONTROL

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

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

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

73

Y

Intake valve timing control 
position sensor (bank 1)

[Engine is running]

Warm-up condition

Idle speed

NOTE:
The pulse cycle changes depending on rpm at 
idle.

0 - 1.0V

[Engine is running]

Engine speed is 2,000 rpm.

0 - 1.0V

152

P

Intake valve timing control 
solenoid valve (bank 1)

[Engine is running]

Warm-up condition

Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

Warm-up condition

When revving engine up to 2,000 rpm 
quickly

7 - 12V

PBIB0054E

PBIB0055E

PBIB1790E

 

 

 

 

 

 

 

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