INFINITI FX35 2005 Service Manual

EC-738
[VK45DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Revision: 2005 July 2005 FX
Diagnostic ProcedureABS007XY
SYMPTOM: FUEL ODOR FROM EVAP CANISTER IS STRONG.
1. CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent control 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 less 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.
>> 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-740, "
Component Inspection" .
OK or NG
OK >> INSPECTION END
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
PBIB1031E

ON BOARD REFUELING VAPOR RECOVERY (ORVR) EC-739
[VK45DE]
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Revision: 2005 July 2005 FX
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 control 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 less 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
Ye s > > G O T O 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 VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP canister and refueling 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.
PBIB1031E

EC-740
[VK45DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Revision: 2005 July 2005 FX
7. CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-740, "
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 InspectionABS007XZ
REFUELING EVAP VAPOR CUT VALVE
With CONSULT-II
1. Remove fuel tank. Refer to FL-10, "FUEL TANK" .
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-II.
3. Check refueling EVAP vapor cut valve for being stuck to close as follows. Blow air into the refueling EVAP vapor cut valve (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.
SEF665U

ON BOARD REFUELING VAPOR RECOVERY (ORVR) EC-741
[VK45DE]
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Revision: 2005 July 2005 FX
d. Apply vacuum pressure to hose end [−13.3 kPa ( −100 mmHg, −3.94 inHg)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
Without CONSULT-II
1. Remove fuel tank. Refer to FL-10, "FUEL TANK" .
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 valve (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 ( −100 mmHg, −3.94 inHg)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
PBIB1035E
PBIB1035E

EC-742
[VK45DE]
POSITIVE CRANKCASE VENTILATION
Revision: 2005 July 2005 FX
POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionABS007Y0
SYSTEM DESCRIPTION
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV
valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air passes
through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
Component InspectionABS007Y1
PCV (POSITIVE CRANKCASE VENTILATION) VALVE
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.
PBIB0062E
PBIB1588E
PBIB1589E

POSITIVE CRANKCASE VENTILATION EC-743
[VK45DE]
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Revision: 2005 July 2005 FX
PCV VALVE VENTILATION HOSE
1. Check hoses and hose connections for leaks.
2. Disconnect all hoses and clean with compressed air. If any hose cannot be freed of obstructions, replace.
S-ET277

EC-744
[VK45DE]
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
DescriptionABS00E46

If the security indicator lights up with the ignition switch in
the ON position or “NATS MALFUNCTION” is displayed on
“SELF-DIAG RESULTS” screen, perform self-diagnostic
results mode with CONSULT-II using NATS program card.
Refer to BL-213, "
IVIS (INFINITI VEHICLE IMMOBILIZER
SYSTEM-NATS)" .

Confirm no self-diagnostic results of IVIS (NATS) is dis-
played before touching “ERASE” in “SELF-DIAG RESULTS”
mode with CONSULT-II.

When replacing ECM, initialization of IVIS (NATS) system
and registration of all IVIS (NATS) ignition key IDs must be
carried out with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of IVIS (NATS)
initialization and IVIS (NATS) ignition key ID registration, refer to CONSULT-II operation manual,
IVIS/NVIS.
SEF543X

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-745
[VK45DE]
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Revision: 2005 July 2005 FX
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionABS00E47
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 using 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-799
.)
Two Trip Detection LogicABS00E48
When a malfunction is detected for the first time, 1st trip 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” means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items 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 cannot warn the driver by lighting up MIL when there is
malfunction on engine control system.
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 control system malfunctions and MIL circuit is open by means
of operating fail-safe function.
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-II ×× × × ×× —
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 cata-
lyst damage) — DTC: P0300 -
P0308 is being detected ×
———— — ×—
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0308 is being detected ——
×—— ×——
One trip detection diagnoses
(Refer to EC-746
.) —
×—— ×———
Except above — — — ×— ×× —

EC-746
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2005 July 2005 FX
The fail-safe function also operates when above diagnoses except MIL circuit are detected and demands the
driver to repair the malfunction.
Emission-Related Diagnostic InformationABS00E49
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-II screen terms) DTC*
1
SRT code
Test value/
Te s t l i m i t
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3
CAN COMM CIRCUIT U1000 1000*4—— 1 × or — EC-862
CAN COMM CIRCUIT U1001
1001*4—— 2 — EC-862
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. P0000 0000
———
Flashing *7 *8—
INT/V TIM CONT-B1 P0011 0011 — — 2 ×EC-865
INT/V TIM CONT-B2 P0021 0021 — — 2 ×EC-865
HO2S1 HTR (B1) P0031 0031 ××2×EC-877
HO2S1 HTR (B1) P0032 0032 ××2×EC-877
HO2S2 HTR (B1) P0037 0037 ××2×EC-885
HO2S2 HTR (B1) P0038 0038 ××2×EC-885
HO2S1 HTR (B2) P0051 0051 ××2×EC-877
HO2S1 HTR (B2) P0052 0052 ××2×EC-877
HO2S2 HTR (B2) P0057 0057 ××2×EC-885
HO2S2 HTR (B2) P0058 0058 ××2×EC-885
MAF SEN/CIRCUIT P0101 0101 — — 2 ×EC-893
MAF SEN/CIRCUIT P0102 0102 — — 1 ×EC-902
MAF SEN/CIRCUIT P0103 0103 — — 1 ×EC-902
IAT SEN/CIRCUIT P0112 0112 — — 2 ×EC-909
IAT SEN/CIRCUIT P0113 0113 — — 2 ×EC-909
ECT SEN/CIRCUIT P0117 0117 — — 1 ×EC-914
ECT SEN/CIRCUIT P0118 0118 — — 1 ×EC-914
TP SEN 2/CIRC P0122 0122 — — 1 ×EC-920
TP SEN 2/CIRC P0123 0123 — — 1 ×EC-920
ECT SENSOR P0125 0125 — — 1 ×EC-927
IAT SENSOR P0127 0127 — — 2 ×EC-930
THERMSTAT FNCTN P0128 0128 — — 2 ×EC-933
HO2S1 (B1) P0132 0132 — ×2 ×EC-935
HO2S1 (B1) P0133 0133 ××2×EC-944
HO2S1 (B1) P0134 0134 — ×2 ×EC-956
HO2S2 (B1) P0138 0138 — ×2 ×EC-966
HO2S2 (B1) P0139 0139 ××2×EC-975
HO2S1 (B2) P0152 0152 — ×2 ×EC-935
HO2S1 (B2) P0153 0153 ××2×EC-944
HO2S1 (B2) P0154 0154 — ×2 ×EC-956
HO2S2 (B2) P0158 0158 — ×2 ×EC-966
HO2S2 (B2) P0159 0159 ××2×EC-975

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-747
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Revision: 2005 July 2005 FXFUEL SYS-LEAN-B1 P0171 0171 — — 2 ×EC-986
FUEL SYS-RICH-B1 P0172 0172 — — 2 ×EC-995
FUEL SYS-LEAN-B2 P0174 0174 — — 2 ×EC-986
FUEL SYS-RICH-B2 P0175 0175 — — 2 ×EC-995
FTT SENSOR P0181 0181 — — 2 ×EC-1004
FTT SEN/CIRCUIT P0182 0182 — — 2 ×EC-1010
FTT SEN/CIRCUIT P0183 0183 — — 2 ×EC-1010
TP SEN 1/CIRC P0222 0222 — — 1 ×EC-1015
TP SEN 1/CIRC P0223 0223 — — 1 ×EC-1015
MULTI CYL MISFIRE P0300 0300 — — 2 ×EC-1022
CYL 1 MISFIRE P0301 0301 — — 2 ×EC-1022
CYL 2 MISFIRE P0302 0302 — — 2 ×EC-1022
CYL 3 MISFIRE P0303 0303 — — 2 ×EC-1022
CYL 4 MISFIRE P0304 0304 — — 2 ×EC-1022
CYL 5 MISFIRE P0305 0305 — — 2 ×EC-1022
CYL 6 MISFIRE P0306 0306 — — 2 ×EC-1022
CYL 7 MISFIRE P0307 0307 — — 2 ×EC-1022
CYL 8 MISFIRE P0308 0308 — — 2 ×EC-1022
KNOCK SEN/CIRC-B1 P0327 0327 — — 2 — EC-1031
KNOCK SEN/CIRC-B1 P0328 0328 — — 2 —EC-1031
KNOCK SEN/CIRC-B2 P0332 0332 — — 2 —EC-1031
KNOCK SEN/CIRC-B2 P0333 0333 — — 2 —EC-1031
CKP SEN/CIRCUIT P0335 0335 — — 2×EC-1036
CMP SEN/CIRC-B1 P0340 0340 — — 2 ×EC-1043
TW CATALYST SYS-B1 P0420 0420 ××2×EC-1050
TW CATALYST SYS-B2 P0430 0430 ××2×EC-1050
EVAP PURG FLOW/MON P0441 0441 ××2×EC-1056
EVAP SMALL LEAK P0442 0442 ××2×EC-1061
PURG VOLUME CONT/V P0444 0444 — — 2 ×EC-1069
PURG VOLUME CONT/V P0445 0445 — — 2 ×EC-1069
VENT CONTROL VALVE P0447 0447 — — 2 ×EC-1076
EVAP SYS PRES SEN P0451 0451 — — 2 ×EC-1083
EVAP SYS PRES SEN P0452 0452 — — 2 ×EC-1086
EVAP SYS PRES SEN P0453 0453 — — 2 ×EC-1092
EVAP GROSS LEAK P0455 0455 — — 2 ×EC-1100
EVAP VERY SML LEAK P0456 0456
× *5× 2 ×EC-1108
FUEL LEV SEN SLOSH P0460 0460 — — 2 ×E C - 111 7
FUEL LEVEL SENSOR P0461 0461 — — 2 ×E C - 111 9
FUEL LEVL SEN/CIRC P0462 0462 — — 2 ×EC-1121
FUEL LEVL SEN/CIRC P0463 0463 — — 2 ×EC-1121
VEH SPEED SEN/CIRC*6P0500 0500 — — 2 ×EC-1123
ISC SYSTEM P0506 0506 — — 2 ×EC-1125
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Te s t l i m i t
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3