2007 INFINITI FX35 Service Manual

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Page 2497 of 4366

INFINITI FX35 2007 Service Manual DTC P0456 EVAP CONTROL SYSTEM EC-1121
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Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS00493
1. CHECK FUEL FILLER CAP DESIGN
1. Turn ignition

Page 2498 of 4366

INFINITI FX35 2007 Service Manual EC-1122
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DTC P0456 EVAP CONTROL SYSTEM
Revision: 2006 July 2007 FX35/FX45
5. INSTALL THE PRESSURE PUMP
To locate the EVAP leak, install EVAP service port adapter and pres-
sure pump to EVAP

Page 2499 of 4366

INFINITI FX35 2007 Service Manual DTC P0456 EVAP CONTROL SYSTEM EC-1123
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Revision: 2006 July 2007 FX35/FX45
7. CHECK FOR EVAP LEAK
Without CONSULT-II
1. Turn ignition switch OFF.
2.

Page 2500 of 4366

INFINITI FX35 2007 Service Manual EC-1124
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DTC P0456 EVAP CONTROL SYSTEM
Revision: 2006 July 2007 FX35/FX45
9. CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP

Page 2501 of 4366

INFINITI FX35 2007 Service Manual DTC P0456 EVAP CONTROL SYSTEM EC-1125
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13. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With

Page 2502 of 4366

INFINITI FX35 2007 Service Manual EC-1126
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DTC P0456 EVAP CONTROL SYSTEM
Revision: 2006 July 2007 FX35/FX45
20. CHECK EVAP/ORVR LINE
Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kink, looseness and i

Page 2503 of 4366

INFINITI FX35 2007 Service Manual DTC P0460 FUEL LEVEL SENSOR EC-1127
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Revision: 2006 July 2007 FX35/FX45
DTC P0460 FUEL LEVEL SENSORPFP:25060
Component DescriptionNBS00494
The fuel leve

DTC P0460 FUEL LEVEL SENSOR EC-1127
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Revision: 2006 July 2007 FX35/FX45
DTC P0460 FUEL LEVEL SENSORPFP:25060
Component DescriptionNBS00494
The fuel level sensor is mounted in the fuel level sensor unit. The
sensor detects a fuel level in the fuel tank and transmits a signal to
the “unified meter and A/C amp.”. The “unified meter and A/C amp.”
sends the fuel level sensor signal to the ECM through CAN commu-
nication line.
It consists of two parts, one is mechanical float and the other is vari-
able resistor. Fuel level sensor output voltage changes depending on
the movement of the fuel mechanical float.
On Board Diagnosis LogicNBS00495
NOTE:
If DTC P0460 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-820, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
If DTC P0460 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to EC-823, "
DTC U1010 CAN COMMUNICATION" .
When the vehicle is parked, naturally the fuel level in the fuel tank is stable. It means that output signal of the
fuel level sensor does not change. If ECM senses sloshing signal from the sensor, fuel level sensor malfunc-
tion is detected.
DTC Confirmation ProcedureNBS00496
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and wait maximum of 2 consecutive minutes.
4. If 1st trip DTC is detected, go to EC-1128, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB1508E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0460
0460 Fuel level sensor circuit
noise Even though the vehicle is parked, a signal
being varied is sent from the fuel level sensor
to ECM.
Harness or connectors
(The CAN communication line is open or
shorted)
Harness or connectors
(The sensor circuit is open or shorted)
Unified meter and A/C amp.
Fuel level sensor
SEF195Y

Page 2504 of 4366

INFINITI FX35 2007 Service Manual EC-1128
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DTC P0460 FUEL LEVEL SENSOR
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS00497
1. CHECK DTC WITH “UNIFIED METER AND A/C AMP.”
Refer to DI-31, "
SELF-DIAG RESULTS"

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