2007 INFINITI M35 Factory Service Manual

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Page 1697 of 4647

INFINITI M35 2007 Factory Service Manual EC-168
[VQ35DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2007 April2007 M35/M45
7. If 1st trip DTC is detected, go to EC-168, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II�

Page 1698 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0011, P0021 IVT CONTROL
EC-169
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Revision: 2007 April2007 M35/M45
6. CHECK TIMING CHAIN INSTALLATION
Check service records for any recent repairs that may cause t

Page 1699 of 4647

INFINITI M35 2007 Factory Service Manual EC-170
[VQ35DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2007 April2007 M35/M45
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATERPFP:22693
DescriptionNBS004U0
SYSTEM DESCRIPTION
T

EC-170
[VQ35DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2007 April2007 M35/M45
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATERPFP:22693
DescriptionNBS004U0
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 ModeNBS004U1
Specification data are reference values.
On Board Diagnosis LogicNBS004U2
DTC Confirmation ProcedureNBS004U3
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-174, "
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 1700 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-171
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Revision: 2007 April2007 M35/M45
Wiring DiagramNBS004U4
BANK 1
TBWT0968E

Page 1701 of 4647

INFINITI M35 2007 Factory Service Manual EC-172
[VQ35DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse sig

Page 1702 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-173
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Revision: 2007 April2007 M35/M45
BANK 2
TBWT0969E

Page 1703 of 4647

INFINITI M35 2007 Factory Service Manual EC-174
[VQ35DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse sig

Page 1704 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-175
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Revision: 2007 April2007 M35/M45
2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect

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