2006 INFINITI M35 Factory Service Manual

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Page 2441 of 5621

INFINITI M35 2006 Factory Service Manual EC-898
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNBS005BE
1. CHECK OIL PRESSURE WARNING LAMP
1. Start engine.
2. Check oil pressure warning lamp

Page 2442 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0011, P0021 IVT CONTROL
EC-899
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Revision: 2006 January2006 M35/M45
3. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect intake

Page 2443 of 5621

INFINITI M35 2006 Factory Service Manual EC-900
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2006 January2006 M35/M45
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F102, M72
Harness for open or short between intake

Page 2444 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0011, P0021 IVT CONTROL
EC-901
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Revision: 2006 January2006 M35/M45
9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Reconnect ECM harn

Page 2445 of 5621

INFINITI M35 2006 Factory Service Manual EC-902
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DTC P0011, P0021 IVT CONTROL
Revision: 2006 January2006 M35/M45
12. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EC-902, "
Component Inspection" .
OK or NG
OK >> G

Page 2446 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0011, P0021 IVT CONTROL
EC-903
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Revision: 2006 January2006 M35/M45
4. Visually check the sensor for chipping.
5. Check resistance as shown below.
6. If NG, repla

Page 2447 of 5621

INFINITI M35 2006 Factory Service Manual EC-904
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DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 January2006 M35/M45
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATERPFP:22693
DescriptionNBS005BH
SYSTEM DESCRIPTION

EC-904
[VK45DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 January2006 M35/M45
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATERPFP:22693
DescriptionNBS005BH
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating
condition to keep the temperature of A/F sensor 1 element at the specified range.
CONSULT-II Reference Value in Data Monitor ModeNBS005BI
Specification data are reference values.
On Board Diagnosis LogicNBS005BJ
DTC Confirmation ProcedureNBS005BK
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 10.5V and 16V at
idle.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
2. Start engine and let it idle for at least 10 seconds.
3. If 1st trip DTC is detected, go to EC-908, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speed
Air fuel ratio (A/F) sensor 1
heater controlAir fuel ratio (A/F) sensor 1
heater
Mass air flow sensor Amount of intake air
MONITOR ITEM CONDITION SPECIFICATION
A/F S1 HTR (B1)
A/F S1 HTR (B2)
Engine: After warming up, idle the engine 0 - 100%
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0031
0031
(Bank 1)Air fuel ratio (A/F) sensor
1 heater control circuit
lowThe current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the A/F sensor 1 heater.)
Harness or connectors
(The A/F sensor 1 heater circuit is
open or shorted.)
A/F sensor 1 heater P0051
0051
(Bank 2)
P0032
0032
(Bank 1)Air fuel ratio (A/F) sensor
1 heater control circuit
highThe current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the A/F sensor 1 heater.)
Harness or connectors
(The A/F sensor 1 heater circuit is
shorted.)
A/F sensor 1 heater P0052
0052
(Bank 2)
SEF058Y

Page 2448 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-905
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Revision: 2006 January2006 M35/M45
Wiring DiagramNBS005BL
BANK 1
TBWT1033E

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