2007 INFINITI FX35 Service Manual

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INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-801
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INFINITI FX35 2007 Service Manual EC-802
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TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2006 July 2007 FX35/FX45
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionNBS004JZ
The specification (SP) value indicates t

EC-802
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TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2006 July 2007 FX35/FX45
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionNBS004JZ
The specification (SP) value indicates the tolerance of the value that is displayed in “DATA MONITOR (SPEC)”
mode of CONSULT-II during normal operation of the Engine Control System. When the value in “DATA MONI-
TOR (SPEC)” mode is within the SP value, the Engine Control System is confirmed OK. When the value in
“DATA MONITOR (SPEC)” mode is NOT within the SP value, the Engine Control System may have one or
more malfunctions.
The SP value is used to detect malfunctions that may affect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:
B/FUEL SCHDL (The fuel injection pulse width programmed into ECM prior to any learned on board cor-
rection)
A/F ALPHA-B1/B2 (The mean value of air-fuel ratio feedback correction factor per cycle)
MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Testing ConditionNBS004K0
Vehicle driven distance: More than 5,000 km (3,107 miles)
Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm2 , 14.25 - 15.12 psi)
Atmospheric temperature: 20 - 30 °C (68 - 86 °F)
Engine coolant temperature: 75 - 95 °C (167 - 203 °F)
Transmission: Warmed-up
–After the engine is warmed up to normal operating temperature, drive vehicle until “ATF TEMP SE 1” (A/T
fluid temperature sensor signal) indicates more than 60 °C (140 °F).
Electrical load: Not applied
–Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.
Engine speed: Idle
Inspection ProcedureNBS004K1
NOTE:
Perform “DATA MONITOR (SPEC)” mode in maximum scale display.
1. Perform EC-738, "
Basic Inspection" .
2. Confirm that the testing conditions indicated above are met.
3. Select “B/FUEL SCHDL”, “A/F ALPHA-B1”, “A/F ALPHA-B2” and “MAS A/F SE-B1” in “DATA MONITOR (SPEC)” mode with
CONSULT-II.
4. Make sure that monitor items are within the SP value.
5. If NG, go to EC-803, "
Diagnostic Procedure" .
SEF601Z

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INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS - SPECIFICATION VALUE EC-803
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Diagnostic ProcedureNBS004K2
OVERALL SEQUENCE
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INFINITI FX35 2007 Service Manual EC-804
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TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2006 July 2007 FX35/FX45
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INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS - SPECIFICATION VALUE EC-805
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DETAILED PROCEDURE
1. CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1

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INFINITI FX35 2007 Service Manual EC-806
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TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2006 July 2007 FX35/FX45
5. CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil. NOTE:
This symptom may occur when a large a

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INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS - SPECIFICATION VALUE EC-807
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10. DETECT MALFUNCTIONING PART
1. Check the following.
–Ignition c

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INFINITI FX35 2007 Service Manual EC-808
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TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2006 July 2007 FX35/FX45
16. CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1. Start engine.
2. Select “A/F ALPHA-B1”, “A/F ALPH

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