service INFINITI FX35 2008 Service Manual

ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-625
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Does water drain from
the EVAP canister?
Ye s o r N o
Yes >> GO TO 3.
No >> GO TO 5.
3.REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
>> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose.
5.CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-626, "
Component Inspection".
OK or NG
OK >> INSPECTION END
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
SYMPTOM: CANNOT REFUEL/FUEL ODOR FROM THE FUEL FILLER OPENING IS STRONG
WHILE REFUELING.
1.CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent c ontrol valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 2.1 kg (4.6 lb).
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK IF EVAP CANISTER SATURATED WITH WATER
Does water drain from the EVAP canister?
Ye s o r N o
Yes >> GO TO 3.
No >> GO TO 5.
3.REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
PBIB1031E
PBIB1031E
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EC-626
< SERVICE INFORMATION >[VK45DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
>> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose.
5.CHECK VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP canister and refue ling control valve for clogging, kink, looseness and
improper connection.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace hoses and tubes.
6.CHECK FILLER NECK TUBE
Check recirculation line for clogging, dents and cracks.
OK or NG
OK >> GO TO 7.
NG >> Replace filler neck tube.
7.CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-626, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
8.CHECK FUEL FILLER TUBE
Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.
OK or NG
OK >> GO TO 9.
NG >> Replace fuel filler tube.
9.CHECK ONE-WAY FUEL VALVE-I
Check one-way valve for clogging.
OK or NG
OK >> GO TO 10.
NG >> Repair or replace one-way fuel valve with fuel tank.
10.CHECK ONE-WAY FUEL VALVE-II
1. Make sure that fuel is drained from the tank.
2. Remove fuel filler tube and hose.
3. Check one-way fuel valve for operation as follows. When a stick is inserted, the valve should open, when removing
stick it should close.
Do not drop any material into the tank.
OK or NG
OK >> INSPECTION END
NG >> Replace fuel filler tube or replace one-way fuel valve with fuel tank.
Component InspectionINFOID:0000000001326506
REFUELING EVAP VAPOR CUT VALVE
With CONSULT-III
SEF665U
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ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-627
< SERVICE INFORMATION > [VK45DE]
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1. Remove fuel tank. Refer to
FL-10.
2. Drain fuel from the tank as follows:
a. Remove fuel feed hose located on the fuel gauge retainer.
b. Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other side to a fuel container.
c. Drain fuel using “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT-III.
3. Check refueling EVAP vapor cut valve for being stuck to close as follows. Blow air into the refueling EVAP vapor cut valv e (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
4. Check refueling EVAP vapor cut valve for being stuck to open as follows.
a. Connect vacuum pump to hose end.
b. Remove fuel gauge retainer with fuel gauge unit. Always replace O-ring with new one.
c. Put fuel tank upside down.
d. Apply vacuum pressure to hose end [ −13.3 kPa ( −0.136 kg/cm
2, −1.93 psi)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
Without CONSULT-III
1. Remove fuel tank. Refer to FL-10.
2. Drain fuel from the tank as follows:
a. Remove fuel gauge retainer.
b. Drain fuel from the tank using a handy pump into a fuel container.
3. Check refueling EVAP vapor cut valve for being stuck to close as follows. Blow air into the refueling EVAP vapor cut valv e (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
4. Check refueling EVAP vapor cut valve for being stuck to open as follows.
a. Connect vacuum pump to hose end.
b. Remove fuel gauge retainer with fuel gauge unit. Always replace O-ring with new one.
c. Put fuel tank upside down.
PBIB1035E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-628
< SERVICE INFORMATION >[VK45DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
d. Apply vacuum pressure to hose end [
−13.3 kPa ( −0.136 kg/cm2, −1.93 psi)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
PBIB1035E
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

POSITIVE CRANKCASE VENTILATIONEC-629
< SERVICE INFORMATION > [VK45DE]
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POSITIVE CRANKCASE VENTILATION
DescriptionINFOID:0000000001326507
SYSTEM DESCRIPTION
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is pr
ovided to conductcrankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifoldsucks the blow-by gas through the PCV
valve.
Normally, the capacity of the valv e is sufficient to handle any blow-b yand a small amount of ventilating air.
The ventilating air is then drawn from the air inlet tubes into thecrankcase. In this process the air passes
through the hose connecting airinlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insu fficient todraw the blow-by flow through the valve. The
flow goes through the hose connectionin the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meetthe requirement. This is because some of the flow will go
through the hoseconnection to the air inlet tubes under all condi-
tions.
Component InspectionINFOID:0000000001326508
PCV (POSITIVE CRANKCASE VENTILATION) VALVE
PBIB0062E
PBIB1588E
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EC-630
< SERVICE INFORMATION >[VK45DE]
POSITIVE CRANKCASE VENTILATION
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
PCV VALVE VENTILATION HOSE
1. Check hoses and hose connections for leaks.
2. Disconnect all hoses and clean with compressed air. If any
hosecannot be freed of obstructions, replace.
PBIB1589E
S-ET277
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
EC-631
< SERVICE INFORMATION > [VK45DE]
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
DescriptionINFOID:0000000001326509

If the security indicator lights up with the ignition switch in the ON position or “NATS MALFUNC-
TION” is displayed on “SELF-DIAG RESULTS” screen, perform self-diagnostic results mode with
CONSULT-III using NATS program card. Refer to BL-185
.
 Confirm no self-diagnostic results of IVIS (NATS) is displayed before touching “ERASE” in “SELF-
DIAG RESULTS” mode with CONSULT-III.
 When replacing ECM, initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition
key IDs must be carried out with CO NSULT-III using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of IVIS (NATS)
initialization and all IVIS (NATS) ignition key ID registration, refer to CONSULT-III operation manual,
IVIS/NVIS.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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EC-632
< SERVICE INFORMATION >[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNO
STIC (OBD) SYSTEM
IntroductionINFOID:0000000001326510
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
The above information can be checked usi ng procedures listed in the table below.
×: Applicable —: Not applicable
*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic) , or when the ECM enters fail-safe mode. (Refer to EC-671,
"Fail-Safe Chart".)
Two Trip Detection LogicINFOID:0000000001326511
When a malfunction is detected for the first time, 1st tr ip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” m eans a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic item s will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
× : Applicable —: Not applicable
When there is an open circuit on MIL circuit, the ECM c annot warn the driver by lighting up MIL when there is
malfunction on engine control system.
Emission-related diagnostic information Diagnostic service
Diagnostic Trouble Code (DTC) Service $03 of SAE J1979
Freeze Frame data Service $02 of SAE J1979
System Readiness Test (SRT) code Service $01 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC) Service $07 of SAE J1979
1st Trip Freeze Frame data
Test values and Test limits Service $06 of SAE J1979
Calibration ID Service $09 of SAE J1979
DTC 1st trip DTC Freeze
Frame data 1st trip Freeze
Frame data SRT code SRT status Test value
CONSULT-III ×× × × × × —
GST ×× × —×××
ECM ××*— — — ×—
Items MIL DTC 1st trip DTC
1st trip 2nd trip 1st trip
displaying 2nd trip
displaying 1st trip
displaying 2nd trip
display- ing
Blinking Lighting
up Blinking Lighting
up
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0308 is
being detected ×
———— — ×—
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0308 is
being detected ——
×—— ×——
One trip detection diagnoses (Re-
fer to EC-633, "
Emission-related
Diagnostic Information".) —
×—— ×———
Except above — — — ×— ×× —
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ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-633
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Therefore, when electrical controlled throttle and part
of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine c ontrol system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnos es except MIL circuit are detected and demands the
driver to repair the malfunction.
Emission-related Di agnostic InformationINFOID:0000000001326512
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
×:Applicable —: Not applicable
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Items
(CONSULT-III screen terms) DTC*
1
SRT code Trip MIL Reference page
CONSULT-III
GST*
2ECM*3
CAN COMM CIRCUIT U1000 1000*4—1× or — EC-724
CAN COMM CIRCUIT U1001
1001*4—2 —EC-724
CONTROL UNIT(CAN) U1010 1010 — 1 ×EC-726
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. P0000 0000
——
Flashing*8—
INT/V TIM CONT-B1 P0011 0011 — 2 ×EC-727
INT/V TIM CONT-B2 P0021 0021 — 2 ×EC-727
A/F SEN1 HTR (B1) P0031 0031 — 2 ×EC-739
A/F SEN1 HTR (B1) P0032 0032 — 2 ×EC-739
HO2S2 HTR (B1) P0037 0037 — 2 ×EC-746
HO2S2 HTR (B1) P0038 0038 — 2 ×EC-746
A/F SEN1 HTR (B2) P0051 0051 — 2 ×EC-739
A/F SEN1 HTR (B2) P0052 0052 — 2 ×EC-739
HO2S2 HTR (B2) P0057 0057 — 2 ×EC-746
HO2S2 HTR (B2) P0058 0058 — 2 ×EC-746
INT/V TIM V/CIR-B1 P0075 0075 — 2 ×EC-754
INT/V TIM V/CIR-B2 P0081 0081 — 2 ×EC-754
MAF SEN/CIRCUIT-B1 P0101 0101 — 2 ×EC-761
MAF SEN/CIRCUIT-B1 P0102 0102 — 1 ×EC-768
MAF SEN/CIRCUIT-B1 P0103 0103 — 1 ×EC-768
IAT SEN/CIRCUIT-B1 P0112 0112 — 2 ×EC-775
IAT SEN/CIRCUIT-B1 P0113 0113 — 2 ×EC-775
ECT SEN/CIRC P0117 0117 — 1 ×EC-779
ECT SEN/CIRC P0118 0118 — 1 ×EC-779
TP SEN 2/CIRC-B1 P0122 0122 — 1 ×EC-784
TP SEN 2/CIRC-B1 P0123 0123 — 1 ×EC-784
ECT SENSOR P0125 0125 — 2 ×EC-790
IAT SENSOR-B1 P0127 0127 — 2 ×EC-793
THERMSTAT FNCTN P0128 0128 — 2 ×EC-796
A/F SENSOR1 (B1) P0130 0130 — 2 ×EC-798
A/F SENSOR1 (B1) P0131 0131 — 2 ×EC-806
A/F SENSOR1 (B1) P0132 0132 — 2 ×EC-814
A/F SENSOR1 (B1) P0133 0133 ×2 × EC-822
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EC-634
< SERVICE INFORMATION >[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
HO2S2 (B1) P0137 0137
×2 × EC-831
HO2S2 (B1) P0138 0138 ×2 × EC-840
HO2S2 (B1) P0139 0139 ×2 × EC-852
A/F SENSOR1 (B2) P0150 0150 — 2 ×EC-798
A/F SENSOR1 (B2) P0151 0151 — 2 ×EC-806
A/F SENSOR1 (B2) P0152 0152 — 2 ×EC-814
A/F SENSOR1 (B2) P0153 0153 ×2 × EC-822
HO2S2 (B2) P0157 0157 ×2 × EC-831
HO2S2 (B2) P0158 0158 ×2 × EC-840
HO2S2 (B2) P0159 0159 ×2 × EC-852
FUEL SYS-LEAN-B1 P0171 0171 — 2 ×EC-861
FUEL SYS-RICH-B1 P0172 0172 — 2 ×EC-871
FUEL SYS-LEAN-B2 P0174 0174 — 2 ×EC-861
FUEL SYS-RICH-B2 P0175 0175 — 2 ×EC-871
FTT SENSOR P0181 0181 — 2 ×EC-881
FTT SEN/CIRCUIT P0182 0182 — 2 ×EC-885
FTT SEN/CIRCUIT P0183 0183 — 2 ×EC-885
TP SEN 1/CIRC-B1 P0222 0222 — 1 ×EC-889
TP SEN 1/CIRC-B1 P0223 0223 — 1 ×EC-889
MULTI CYL MISFIRE P0300 0300 — 2 ×EC-895
CYL 1 MISFIRE P0301 0301 — 2 ×EC-895
CYL 2 MISFIRE P0302 0302 — 2 ×EC-895
CYL 3 MISFIRE P0303 0303 — 2 ×EC-895
CYL 4 MISFIRE P0304 0304 — 2 ×EC-895
CYL 5 MISFIRE P0305 0305 — 2 ×EC-895
CYL 6 MISFIRE P0306 0306 — 2 ×EC-895
CYL 7 MISFIRE P0307 0307 — 2 ×EC-895
CYL 8 MISFIRE P0308 0308 — 2 ×EC-895
KNOCK SEN/CIRC-B1 P0327 0327 — 2 — EC-902
KNOCK SEN/CIRC-B1 P0328 0328 — 2 —EC-902
KNOCK SEN/CIRC-B2 P0332 0332 — 2 —EC-902
KNOCK SEN/CIRC-B2 P0333 0333 — 2 —EC-902
CKP SEN/CIRCUIT P0335 0335 — 2×EC-906
CMP SEN/CIRC-B1 P0340 0340 — 2 ×EC-911
TW CATALYST SYS-B1 P0420 0420 ×2 × EC-917
TW CATALYST SYS-B2 P0430 0430 ×2 × EC-917
EVAP PURG FLOW/MON P0441 0441 ×2 × EC-921
EVAP SMALL LEAK P0442 0442 ×2 × EC-926
PURG VOLUME CONT/V P0443 0443 — 2 ×EC-933
PURG VOLUME CONT/V P0444 0444 — 2 ×EC-940
PURG VOLUME CONT/V P0445 0445 — 2 ×EC-940
VENT CONTROL VALVE P0447 0447 — 2 ×EC-946
Items
(CONSULT-III screen terms) DTC*
1
SRT code Trip MIL Reference page
CONSULT-III
GST*
2ECM*3
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