Infiniti Q45. Manual - part 381

DTC P0011, P0021 IVT CONTROL

EC-163

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DTC Confirmation Procedure

NBS001RU

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-167, "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-167, "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

PBIB0164E

ENG SPEED

1,700 - 3,175 rpm (A constant rotation is maintained.)

COOLAN TEMP/S

70 - 105

°

C (158 - 221

°

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.)

PBIB0164E

EC-164

DTC P0011, P0021 IVT CONTROL

Wiring Diagram

NBS001RV

BANK 1

TBWM1217E

DTC P0011, P0021 IVT CONTROL

EC-165

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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)

10

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

●

Engine speed: 2,000rpm

7 - 12V

72

W

Intake valve timing control 
position sensor (bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

0 - 1.0V

[Engine is running]

●

Engine speed: 2,000rpm

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

Power supply for ECM

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

PBIB1790E

PBIB2046E

EC-166

DTC P0011, P0021 IVT CONTROL

BANK 2

TBWM1218E