2006 INFINITI FX35 Service Manual

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Page 2217 of 4462

INFINITI FX35 2006 Service Manual DTC P0011, P0021 IVT CONTROL EC-833
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Revision: 2006 December 2006 FX35/FX45
9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.

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INFINITI FX35 2006 Service Manual EC-834
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DTC P0011, P0021 IVT CONTROL
Revision: 2006 December 2006 FX35/FX45
13. CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-1036, "
Component Inspection" .
OK or NG
OK >> GO TO 14.

Page 2219 of 4462

INFINITI FX35 2006 Service Manual DTC P0011, P0021 IVT CONTROL EC-835
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Revision: 2006 December 2006 FX35/FX45
4. Visually check the sensor for chipping.
5. Check resistance as shown belo

Page 2220 of 4462

INFINITI FX35 2006 Service Manual EC-836
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DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 December 2006 FX35/FX45
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATERPFP:22693
DescriptionNBS004K7
SYSTEM DESCRIP

EC-836
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DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 December 2006 FX35/FX45
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATERPFP:22693
DescriptionNBS004K7
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 ModeNBS004K8
Specification data are reference values.
On Board Diagnosis LogicNBS004K9
DTC Confirmation ProcedureNBS004KA
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-840, "
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 control Air 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
low The 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
high The 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 2221 of 4462

INFINITI FX35 2006 Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-837
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Revision: 2006 December 2006 FX35/FX45
Wiring DiagramNBS004KB
BANK 1
TBWM1371E

Page 2222 of 4462

INFINITI FX35 2006 Service Manual EC-838
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DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 December 2006 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
Pu

Page 2223 of 4462

INFINITI FX35 2006 Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-839
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Revision: 2006 December 2006 FX35/FX45
BANK 2
TBWM1372E

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INFINITI FX35 2006 Service Manual EC-840
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DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 December 2006 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
Pu

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