Abs INFINITI FX35 2004 Service Manual

EC-1010
[VK45DE]
DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2004 November 2004 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureABS00C6F
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-791, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
32 OREVAP control system pres-
sure sensor[Ignition switch: ON]Approximately 1.8 - 4.8V
48 LSensor power supply
(Mass air flow sensor /
EVAP control system pres-
sure sensor)[Ignition switch: ON]Approximately 5V
67 B/WSensor ground
(Mass air flow sensor / IAT
sensor / Power steering
pressure sensor / EVAP
control system pressure
sensor / Refrigerant pres-
sure sensor / ECT sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
PBIB2195E

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-1013
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
10. CHECK INTERMITTENT INCIDENT
Refer to EC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionABS00C6G
EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM
terminal 32 and ground under the following conditions.
CAUTION:

Always calibrate the vacuum pump gauge when using it.

Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or
pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor.
Applied vacuum kPa
(mmHg, inHg)Voltage V
Not applied 1.8 - 4.8
-26.7 (-200, -7.87) 2.1 to 2.5V lower than above value
PBIB1173E

EC-1014
[VK45DE]
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2004 November 2004 FX35/FX45
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSORPFP:25085
Component DescriptionABS00C6H
The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the
ECM increases as pressure increases.
CONSULT-II Reference Value in Data Monitor ModeABS00C6I
Specification data are reference values.
On Board Diagnosis LogicABS00C6J
NOTE:
If DTC P0453 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229. Refer to
EC-1156
.
PBIB1522E
PBIB1207E
MONITOR ITEM CONDITION SPECIFICATION
EVAP SYS PRES

Ignition switch: ON Approx. 1.8 - 4.8V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0453
0453EVAP control system
pressure sensor high
inputAn excessively high voltage from the sensor is
sent to ECM.

Harness or connectors
(The sensor circuit is open or shorted.)

EVAP control system pressure sensor

EVAP canister vent control valve

EVAP canister

Rubber hose from EVAP canister vent
control valve to vehicle frame

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-1015
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Revision: 2004 November 2004 FX35/FX45
DTC Confirmation ProcedureABS00C6K
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:
Always perform test at a temperature of 5°C (41°F) or more.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-II.
5. Make sure that “FUEL T/TEMP SE” is more than 0°C (32°F).
6. Wait at least 10 seconds.
7. If 1st trip DTC is detected, go to EC-1017, "
Diagnostic Proce-
dure" .
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Check that voltage between ECM terminal 107 (Fuel tank tem-
perature sensor signal) and ground is less than 4.2V.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Wait at least 10 seconds.
5. Select MODE 7 with GST.
If 1st trip DTC is detected, go to EC-1017, "
Diagnostic Proce-
dure" .
SEF194Y
PBIB1110E

EC-1016
[VK45DE]
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00C6L
TBWH0115E

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-1017
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Revision: 2004 November 2004 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureABS00C6M
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-791, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
32 OREVAP control system pres-
sure sensor[Ignition switch: ON]Approximately 1.8 - 4.8V
48 LSensor power supply
(Mass air flow sensor /
EVAP control system pres-
sure sensor)[Ignition switch: ON]Approximately 5V
67 B/WSensor ground
(Mass air flow sensor / IAT
sensor / Power steering
pressure sensor / EVAP
control system pressure
sensor / Refrigerant pres-
sure sensor / ECT sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
PBIB2195E

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-1021
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
Component InspectionABS00C6N
EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM
terminal 32 and ground under the following conditions.
CAUTION:

Always calibrate the vacuum pump gauge when using it.

Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or
pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor.
Applied vacuum kPa
(mmHg, inHg)Voltage V
Not applied 1.8 - 4.8
-26.7 (-200, -7.87) 2.1 to 2.5V lower than above value
PBIB1173E

EC-1022
[VK45DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
DTC P0455 EVAP CONTROL SYSTEMPFP:14950
On Board Diagnosis LogicABS00C6O
This diagnosis detects a very large leak (fuel filler cap fell off etc.) in EVAP system between the fuel tank and
EVAP canister purge volume control solenoid valve.
CAUTION:

Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used,
the MIL may come on.

If the fuel filler cap is not tightened properly, the MIL may come on.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0455
0455EVAP control system
gross leak detectedEVAP control system has a very large leak
such as fuel filler cap fell off, EVAP control sys-
tem does not operate properly.

Fuel filler cap remains open or fails to
close.

Incorrect fuel tank vacuum relief valve

Incorrect fuel filler cap used

Foreign matter caught in fuel filler cap.

Leak is in line between intake manifold
and EVAP canister purge volume control
solenoid valve.

Foreign matter caught in EVAP canister
vent control valve.

EVAP canister or fuel tank leaks

EVAP purge line (pipe and rubber tube)
leaks

EVAP purge line rubber tube bent.

Loose or disconnected rubber tube

EVAP canister vent control valve and the
circuit

EVAP canister purge volume control
solenoid valve and the circuit

Fuel tank temperature sensor

O-ring of EVAP canister vent control
valve is missing or damaged.

EVAP control system pressure sensor

Refueling EVAP vapor cut valve

ORVR system leaks
PBIB1026E

DTC P0455 EVAP CONTROL SYSTEM
EC-1023
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45

Use only a genuine NISSAN rubber tube as a replacement.
DTC Confirmation ProcedureABS00C6P
CAUTION:
Never remove fuel filler cap during the DTC Confirmation Procedure.
NOTE:

Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve
properly.

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:

Perform “DTC WORK SUPPORT” when the fuel level is between 1/4 and 3/4 full, and vehicle is
placed on flat level surface.

Open engine hood before conducting the following procedures.
WITH CONSULT-II
1. Tighten fuel filler cap securely until ratcheting sound is heard.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-II.
5. Make sure that the following conditions are met.
COOLAN TEMP/S: 0 - 70°C (32 - 158°F)
INT/A TEMP SE: 0 - 60°C (32 - 140°F)
6. Select “EVAP SML LEAK P0442/P1442” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-II.
Follow the instruction displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-II screen, go to
EC-733, "
Basic Inspection" .
7. Make sure that “OK” is displayed.
If “NG” is displayed, select “SELF-DIAG RESULTS” mode and
make sure that “EVAP GROSS LEAK [P0455]” is displayed. If it
is displayed, refer to EC-1024, "
Diagnostic Procedure" .
If P0442 is displayed, perform Diagnostic Procedure for DTC
P0442 EC-983, "
Diagnostic Procedure" .
PBIB0829E
SEC763C

EC-1024
[VK45DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
WITH GST
NOTE:
Be sure to read the explanation of EC-713, "
Driving Pattern" before driving vehicle.
1. Start engine.
2. Drive vehicle according to EC-713, "
Driving Pattern" .
3. Stop vehicle.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Select MODE 7 with GST.

If P0455 is displayed on the screen, go to EC-1024, "Diagnostic Procedure" .

If P0442 is displayed on the screen, go to EC-983, "Diagnostic Procedure" .

If P0441 is displayed on the screen, go to EC-978, "Diagnostic Procedure" .
Diagnostic ProcedureABS00C6Q
1. CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
OK or NG
OK >> GO TO 2.
NG >> Replace with genuine NISSAN fuel filler cap.
2. CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
OK or NG
OK >> GO TO 3.
NG >> 1. Open fuel filler cap, then clean cap and fuel filler neck threads using air blower.
2. Retighten until ratcheting sound is heard.
3. CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK FUEL TANK VACUUM RELIEF VALVE
Refer to EC-1323, "
FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FULLER CAP)" .
OK or NG
OK >> GO TO 5.
NG >> Replace fuel filler cap with a genuine one.
SEF915U