2005 INFINITI FX35 Service Manual

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Page 1793 of 4731

INFINITI FX35 2005 Service Manual EC-400
[VQ35DE]
DTC P0550 PSP SENSOR
Revision: 2005 July 2005 FX
2. CHECK PSP SENSOR POWER SUPPLY CIRCUIT
1. Disconnect power steering pressure (PSP) sensor harness con- nector.
2. Turn ignition sw

Page 1794 of 4731

INFINITI FX35 2005 Service Manual DTC P0550 PSP SENSOR EC-401
[VQ35DE]
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Revision: 2005 July 2005 FX
6. CHECK INTERMITTENT INCIDENT
Refer to EC-163, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDEN

Page 1795 of 4731

INFINITI FX35 2005 Service Manual EC-402
[VQ35DE]
DTC P0605 ECM
Revision: 2005 July 2005 FX
DTC P0605 ECMPFP:23710
Component DescriptionABS006ST
The ECM consists of a microcomputer and connectors for signal
input and output and for p

Page 1796 of 4731

INFINITI FX35 2005 Service Manual DTC P0605 ECM EC-403
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Revision: 2005 July 2005 FX
PROCEDURE FOR MALFUNCTION B
With CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.

Page 1797 of 4731

INFINITI FX35 2005 Service Manual EC-404
[VQ35DE]
DTC P0605 ECM
Revision: 2005 July 2005 FX
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of IVIS(NATS) system and registration of all IVIS(NATS) ignition key IDs. Refer to

Page 1798 of 4731

INFINITI FX35 2005 Service Manual DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER EC-405
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Revision: 2005 July 2005 FX
DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATERPFP:22693
Descr

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER EC-405
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Revision: 2005 July 2005 FX
DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATERPFP:22693
DescriptionABS00A9L
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the air fuel ratio (A/F) sensor 1 heater corresponding to the engine
operating condition to keep the temperature of air fuel ratio (A/F) sensor 1 element at the specified range.
CONSULT-II Reference Value in Data Monitor ModeABS00A9M
Specification data are reference values.
On Board Diagnosis LogicABS00A9N
DTC Confirmation ProcedureABS00A9O
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
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-410, "
Diagnostic Procedure"
.
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
P1031
1031
(Bank 1) Air fuel ratio (A/F) sensor
1 heater control circuit
low The current amperage in the heated air fuel ratio
(A/F) sensor 1 heater circuit is out of the normal
range.
(An excessively low voltage signal is sent to ECM
through the heated air fuel ratio (A/F) sensor 1
heater.)
Harness or connectors
(The air fuel ratio (A/F) sensor 1
heater circuit is open or shorted.)
Air fuel ratio (A/F) sensor 1 heater
P1051
1051
(Bank 2)
P1032
1032
(Bank 1) Air fuel ratio (A/F) sensor
1 heater control circuit
high The current amperage in the heated air fuel ratio
(A/F) sensor 1 heater circuit is out of the normal
range.
(An excessively high voltage signal is sent to ECM
through the heated air fuel ratio (A/F) sensor 1
heater.)
Harness or connectors
(The air fuel ratio (A/F) sensor 1
heater circuit is shorted.)
Air fuel ratio (A/F) sensor 1 heater
P1052
1052
(Bank 2)
SEF058Y

Page 1799 of 4731

INFINITI FX35 2005 Service Manual EC-406
[VQ35DE]
DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER
Revision: 2005 July 2005 FX
WITH GST
Follow the procedure “WITH CONSULT-II” above.

Page 1800 of 4731

INFINITI FX35 2005 Service Manual DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER EC-407
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Revision: 2005 July 2005 FX
Wiring DiagramABS00A9P
BANK 1
TBWM0388E

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