2007 INFINITI FX35 Service Manual

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INFINITI FX35 2007 Service Manual DTC P0130, P0150 A/F SENSOR 1 EC-905
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EC
Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each terminal

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INFINITI FX35 2007 Service Manual EC-906
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DTC P0130, P0150 A/F SENSOR 1
Revision: 2006 July 2007 FX35/FX45
BANK 2
TBWM1374E

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INFINITI FX35 2007 Service Manual DTC P0130, P0150 A/F SENSOR 1 EC-907
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Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each terminal

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INFINITI FX35 2007 Service Manual EC-908
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DTC P0130, P0150 A/F SENSOR 1
Revision: 2006 July 2007 FX35/FX45
2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) sensor 1 harness connec

Page 2285 of 4366

INFINITI FX35 2007 Service Manual DTC P0130, P0150 A/F SENSOR 1 EC-909
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4. CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition

Page 2286 of 4366

INFINITI FX35 2007 Service Manual EC-910
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DTC P0130, P0150 A/F SENSOR 1
Revision: 2006 July 2007 FX35/FX45
Removal and InstallationNBS004KM
AIR FUEL RATIO (A/F) SENSOR 1
Refer to EM-183, "EXHAUST MANIFOLD AND THREE WAY CATALYS

Page 2287 of 4366

INFINITI FX35 2007 Service Manual DTC P0131, P0151 A/F SENSOR 1 EC-911
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DTC P0131, P0151 A/F SENSOR 1PFP:22693
Component DescriptionNBS004KN
The air fu

DTC P0131, P0151 A/F SENSOR 1 EC-911
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Revision: 2006 July 2007 FX35/FX45
DTC P0131, P0151 A/F SENSOR 1PFP:22693
Component DescriptionNBS004KN
The air fuel ratio (A/F) sensor 1 is a planar dual-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is the combination of a
Nernst concentration cell (sensor cell) with an oxygen-pump cell,
which transports ions. It has a heater in the element.
The sensor is capable of precise measurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range (0.7 < < air).
The exhaust gas components diffuse through the diffusion gap at the
electrode of the oxygen pump and Nernst concentration cell, where
they are brought to thermodynamic balance.
An electronic circuit controls the pump current through the oxygen-
pump cell so that the composition of the exhaust gas in the diffusion
gap remains constant at = 1. Therefore, the A/F sensor 1 is able to
indicate air/fuel ratio by this pumping of current. In addition, a heater
is integrated in the sensor to ensure the required operating tempera-
ture of 700 - 800 °C (1,292 - 1,472 °F).
CONSULT-II Reference Value in Data Monitor ModeNBS004KO
Specification data are reference values.
On Board Diagnosis LogicNBS004KP
To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1
signal is not inordinately low.
SEF579Z
SEF580Z
MONITOR ITEM CONDITION SPECIFICATION
A/F SEN1 (B1)
A/F SEN1 (B2)
Engine: After warming up Maintaining engine speed at 2,000 rpm Fluctuates around 1.5 V
DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P0131
0131
(Bank 1) Air fuel ratio (A/F) sensor 1
circuit low voltage The A/F signal computed by ECM from the A/F
sensor 1 signal is constantly approx. 0V.
Harness or connectors
(The A/F sensor 1 circuit is open or
shorted.)
A/F sensor 1
P0151
0151
(Bank 2)

Page 2288 of 4366

INFINITI FX35 2007 Service Manual EC-912
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DTC P0131, P0151 A/F SENSOR 1
Revision: 2006 July 2007 FX35/FX45
DTC Confirmation ProcedureNBS004KQ
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn igni

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