Nissan Murano Z50 (2003 year). Manual - part 104

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-383

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3. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch “ON”.

2.

Check voltage between EVAP control system pressure sensor
terminal 3 and ground with CONSULT-II or tester.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors B2, M9

●

Harness connectors M82, F102

●

Harness for open or short between EVAP control system pressure sensor and ECM

>> Repair open circuit or short to ground or short to power in harness or connectors.

5. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND 

SHORT

1.

Turn ignition switch “OFF”.

2.

Check harness continuity between EVAP control system pressure sensor terminal 1 and engine ground.
Refer to Wiring Diagram.

3.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 7.

NG

>> GO TO 6.

6. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors B2, M9

●

Harness connectors M82, F102

●

Joint connector-3

●

Harness for open or short between EVAP control system pressure sensor and ECM

>> Repair open circuit or short to ground or short to power in harness or connectors.

Voltage: Approximately 5V

PBIB0138E

Continuity should exist.

EC-384

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

Revision; 2004 April

2003 Murano

7. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND 

SHORT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between ECM terminal 32 and EVAP control system pressure sensor terminal
2.
Refer to Wiring Diagram.

3.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 9.

NG

>> GO TO 8.

8. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors B2, M9

●

Harness connectors M82, F102

●

Harness for open or short between EVAP control system pressure sensor and ECM

>> Repair open circuit or short to ground or short to power in harness or connectors.

9. 

CHECK RUBBER TUBE FOR CLOGGING

1.

Disconnect rubber tube connected to EVAP canister vent control valve.

2.

Check the rubber tube for clogging.

OK or NG

OK

>> GO TO 10.

NG

>> Clean the rubber tube using an air blower.

10. 

CHECK EVAP CANISTER VENT CONTROL VALVE

Refer to 

EC-368, "Component Inspection"

 .

OK or NG

OK

>> GO TO 11.

NG

>> Replace EVAP canister vent control valve.

11. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Refer to 

EC-386, "Component Inspection"

 .

OK or NG

OK

>> GO TO 12.

NG

>> Replace EVAP control system pressure sensor.

12. 

CHECK RUBBER TUBE

Check obstructed rubber tube connected to EVAP canister vent control valve.
OK or NG

OK

>> GO TO 13.

NG

>> Clean rubber tube using an air blower, repair or replace rubber tube.

Continuity should exist.

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

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13. 

CHECK IF EVAP CANISTER SATURATED WITH WATER

1.

Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.

2.

Check if water will drain from the EVAP canister.

Yes or No

Yes

>> GO TO 14.

No

>> GO TO 16.

14. 

CHECK EVAP CANISTER

Weigh the EVAP canister with the 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 16.

NG

>> GO TO 15.

15. 

DETECT MALFUNCTIONING PART

Check the following.

●

EVAP canister for damage

●

EVAP hose between EVAP canister and vehicle frame for clogging or poor connection

>> Repair hose or replace EVAP canister.

16. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

PBIB1381E

EC-386

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

Revision; 2004 April

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Component Inspection

ABS004HH

EVAP CONTROL SYSTEM PRESSURE SENSOR

1.

Remove EVAP control system pressure sensor with its harness connector connected.

2.

Remove EVAP control system pressure sensor from EVAP canister.
Do not reuse the O-ring, replace it with a new one.

3.

Install a vacuum pump to EVAP control system pressure sensor.

4.

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).

5.

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

DTC P0455 EVAP CONTROL SYSTEM

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DTC P0455 EVAP CONTROL SYSTEM

PFP:14950

On Board Diagnosis Logic

ABS004HI

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.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0455
0455

EVAP control system 
gross leak detected

EVAP 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.

●

Blocked or bent rubber tube to EVAP 
control system pressure sensor

●

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

EC-388

DTC P0455 EVAP CONTROL SYSTEM

Revision; 2004 April

2003 Murano

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.

●

Use only a genuine NISSAN rubber tube as a replacement.

DTC Confirmation Procedure

ABS004HJ

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-99, "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-389, "Diagnostic Procedure"

 .

If P0442 is displayed, perform “Diagnostic Procedure” for DTC
P0442 

EC-349, "Diagnostic Procedure"

 .

PBIB0829E

SEC763C

DTC P0455 EVAP CONTROL SYSTEM

EC-389

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 WITH GST

NOTE:
Be sure to read the explanation of “Driving Pattern” on 

EC-79

  before driving vehicle.

1.

Start engine.

2.

Drive vehicle according to “Driving Pattern”, 

EC-79

 .

3.

Stop vehicle.

4.

Select “MODE 1” with GST.

●

If SRT of EVAP system is not set yet, go to the following step.

●

If SRT of EVAP system is set, the result will be OK.

5.

Turn ignition switch “OFF” and wait at least 10 seconds.

6.

Start engine.
It is not necessary to cool engine down before driving.

7.

Drive vehicle again according to the “Driving Pattern”, 

EC-79

 .

8.

Stop vehicle.

9.

Select “MODE 3” with GST.

●

If P0455 is displayed on the screen, go to 

EC-389, "Diagnostic Procedure"

 .

●

If P0442 is displayed on the screen, go to “Diagnostic Procedure”, for DTC P0442, 

EC-349

 .

●

If P0441 is displayed on the screen, go to “Diagnostic Procedure” for DTC P0441, 

EC-343

 .

●

If P0455, P0441, P0442 are not displayed on the screen, go to the following step.

10. Select “MODE 1” with GST.

●

If SRT of EVAP system is set, the result will be OK.

●

If SRT of EVAP system is not set, go to step 6.

Diagnostic Procedure

ABS004HK

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.

SEF915U

EC-390

DTC P0455 EVAP CONTROL SYSTEM

Revision; 2004 April

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4. 

CHECK FUEL TANK VACUUM RELIEF VALVE

Refer to 

EC-655, "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.

5. 

CHECK EVAP PURGE LINE

Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connection or
disconnection.
Refer to 

EC-653, "EVAPORATIVE EMISSION LINE DRAWING"

 .

OK or NG

OK

>> GO TO 6.

NG

>> Repair or reconnect the hose.

6. 

CLEAN EVAP PURGE LINE

Clean EVAP purge line (pipe and rubber tube) using air blower.

>> GO TO 7.

7. 

CHECK EVAP CANISTER VENT CONTROL VALVE

Check the following.

●

EVAP canister vent control valve is installed properly.
Refer to 

EC-656, "Removal and Installation"

 .

●

EVAP canister vent control valve.
Refer to 

EC-368, "Component Inspection"

 .

OK or NG

OK

>> GO TO 8.

NG

>> Repair or replace EVAP canister vent control valve and O-ring.

DTC P0455 EVAP CONTROL SYSTEM

EC-391

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8. 

INSTALL THE PRESSURE PUMP

To locate the EVAP leak, install EVAP service port adapter and pres-
sure pump to EVAP service port securely.

NOTE:
Improper installation of the EVAP service port adapter to the
EVAP service port may cause leaking.

Models with CONSULT-II>>GO TO 9.
Models without CONSULT-II>>GO TO 10.

9. 

CHECK FOR EVAP LEAK

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “EVAP SYSTEM CLOSE” of “WORK SUPPORT” mode
with CONSULT-II.

3.

Touch “START” and apply pressure into the EVAP line until the
pressure indicator reaches the middle of the bar graph.

NOTE:

●

Never use compressed air or a high pressure pump.

●

Do not exceed 4.12 kPa (0.042 kg/cm

2

 , 0.6 psi) of pres-

sure in the system.

4.

Using EVAP leak detector, locate the EVAP leak. For the leak
detector, refer to the instruction manual for more details.
Refer to 

EC-653, "EVAPORATIVE EMISSION LINE DRAWING"

.

OK or NG

OK

>> GO TO 11.

NG

>> Repair or replace.

PBIB1355E

SEF916U

PEF917U

SEF200U

EC-392

DTC P0455 EVAP CONTROL SYSTEM

Revision; 2004 April

2003 Murano

10. 

CHECK FOR EVAP LEAK

 Without CONSULT-II

1.

Turn ignition switch “OFF”.

2.

Apply 12 volts DC to EVAP canister vent control valve. The valve will close. (Continue to apply 12 volts
until the end of test.)

3.

Pressurize the EVAP line using pressure pump with 1.3 to 2.7 kPa (10 to 20 mmHg, 0.39 to 0.79 inHg),
then remove pump and EVAP service port adapter.

NOTE:

●

Never use compressed air or a high pressure pump.

●

Do not exceed 4.12 kPa (0.042 kg/cm

2

 , 0.6 psi) of pressure in the system.

4.

Using EVAP leak detector, locate the EVAP leak. For the leak
detector, refer to the instruction manual for more details. Refer
to 

EC-653, "EVAPORATIVE EMISSION LINE DRAWING"

 .

OK or NG

OK

>> GO TO 12.

NG

>> Repair or replace.

11. 

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

 With CONSULT-II

1.

Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.

2.

Start engine.

3.

Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode.

4.

Touch “Qu” on CONSULT-II screen to increase “PURG VOL
CONT/V” opening to 100.0%.

5.

Check vacuum hose for vacuum when revving engine up to
2,000 rpm.

OK or NG

OK

>> GO TO 14.

NG

>> GO TO 13.

PBIB1365E

SEF200U

PBIB0828E

DTC P0455 EVAP CONTROL SYSTEM

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12. 

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

 Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine.

3.

Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.

4.

Start engine and let it idle for at least 80 seconds.

5.

Check vacuum hose for vacuum when revving engine up to 2,000 rpm.

OK or NG

OK

>> GO TO 15.

NG

>> GO TO 13.

13. 

CHECK VACUUM HOSE

Check vacuum hoses for clogging or disconnection. Refer to 

EC-23, "Vacuum Hose Drawing"

 .

OK or NG

OK (With CONSULT-II)>>GO TO 14.
OK (Without CONSULT-II)>>GO TO 15.
NG

>> Repair or reconnect the hose.

14. 

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

 With CONSULT-II

1.

Start engine.

2.

Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT-II. Check that engine speed varies according to the
valve opening.

OK or NG

OK

>> GO TO 16.

NG

>> GO TO 15.

15. 

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Refer to 

EC-361, "Component Inspection"

 .

OK or NG

OK

>> GO TO 16.

NG

>> Replace EVAP canister purge volume control solenoid valve.

16. 

CHECK FUEL TANK TEMPERATURE SENSOR

Refer to 

EC-299, "Component Inspection"

 .

OK or NG

OK

>> GO TO 17.

NG

>> Replace fuel level sensor unit.

Vacuum should exist.

PBIB0828E

EC-394

DTC P0455 EVAP CONTROL SYSTEM

Revision; 2004 April

2003 Murano

17. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Refer to 

EC-378, "Component Inspection"

 .

OK or NG

OK

>> GO TO 18.

NG

>> Replace EVAP control system pressure sensor.

18. 

CHECK EVAP/ORVR LINE

Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kink, looseness and improper con-
nection. For location, refer to 

EC-659, "ON BOARD REFUELING VAPOR RECOVERY (ORVR)"

 .

OK or NG

OK

>> GO TO 19.

NG

>> Repair or replace hoses and tubes.

19. 

CHECK RECIRCULATION LINE

Check recirculation line between filler neck tube and fuel tank for clogging, kink, cracks, looseness and
improper connection.

OK or NG

OK

>> GO TO 20.

NG

>> Repair or replace hose, tube or filler neck tube.

20. 

CHECK REFUELING EVAP VAPOR CUT VALVE

Refer to 

EC-662, "REFUELING EVAP VAPOR CUT VALVE"

 .

OK or NG

OK

>> GO TO 21.

NG

>> Replace refueling EVAP vapor cut valve with fuel tank. 

21. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

DTC P0456 EVAP CONTROL SYSTEM

EC-395

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DTC P0456 EVAP CONTROL SYSTEM

PFP:14950

On Board Diagnosis Logic

ABS004HL

This diagnosis detects very small leaks in the EVAP line between fuel tank and EVAP canister purge volume
control solenoid valve, using the intake manifold vacuum in the same way as conventional EVAP small leak
diagnosis.
If ECM judges a leak which corresponds to a very small leak, the very small leak P0456 will be detected.
If ECM judges a leak equivalent to a small leak, EVAP small leak P0442 will be detected.
If ECM judges there are no leaks, the diagnosis will be OK.

PBIB1026E

EC-396

DTC P0456 EVAP CONTROL SYSTEM

Revision; 2004 April

2003 Murano

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.

●

Use only a genuine NISSAN rubber tube as a replacement.

DTC Confirmation Procedure

ABS004HM

NOTE:

●

If DTC P0456 is displayed with P0442, first perform trouble diagnosis for DTC P0456.

●

After repair, make sure that the hoses and clips are installed 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:

●

Open engine hood before conducting following procedure.

●

If any of following conditions are met just before the DTC confirmation procedure, leave the vehi-
cle for more than 1 hour.

–

Fuel filler cap is removed.

–

Refilled or drained the fuel.

–

EVAP component parts is/are removed.

●

Before performing the following procedure, confirm that battery voltage is more than 11V at idle.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0456
0456

Evaporative emission 
control system very 
small leak (negative 
pressure check)

●

EVAP system has a very small leak.

●

EVAP system does not operate prop-
erly.

●

Incorrect fuel tank vacuum relief valve

●

Incorrect fuel filler cap used

●

Fuel filler cap remains open or fails to close.

●

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 con-
trol valve.

●

EVAP canister or fuel tank leaks

●

EVAP purge line (pipe and rubber tube) leaks

●

EVAP purge line rubber tube bent

●

Blocked or bent rubber tube to EVAP control sys-
tem pressure sensor

●

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 miss-
ing or damaged

●

EVAP canister is saturated with water

●

EVAP control system pressure sensor

●

Refueling EVAP vapor cut valve

●

ORVR system leaks

●

Fuel level sensor and the circuit

●

Foreign matter caught in EVAP canister purge vol-
ume control solenoid valve

DTC P0456 EVAP CONTROL SYSTEM

EC-397

C

D

E

F

G

H

I

J

K

L

M

A

EC

Revision; 2004 April

2003 Murano

 WITH CONSULT-II

1.

Turn ignition switch “ON” and select “DATA MONITOR” mode with CONSULT-II.

2.

Make sure the following conditions are met.
FUEL LEVEL SE: 0.25 - 1.4V
COOLAN TEMP/S: 0 - 32

°

C (32 - 90

°

F)

FUEL T/TMP SE: 0 - 35

°

C (32 - 95

°

F)

INT A/TEMP SE: More than 0

°

C (32

°

F)

If NG, turn ignition switch “OFF” and leave the vehicle in a cool place (soak the vehicle) or refilling/draining
fuel until the output voltage condition of the “FUEL LEVEL SE” meets within the range above and leave
the vehicle for more than 1 hour. Then start from step 1).

3.

Turn ignition switch “OFF” and wait at least 10 seconds.

4.

Turn ignition switch “ON”.

5.

Select “EVAP V/S LEAK P0456/P1456” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-II.
Follow the instruction displayed.

6.

Make sure that “OK” is displayed.
If “NG” is displayed, refer to 

EC-398, "Diagnostic Procedure"

 .

NOTE:

●

If the engine speed cannot be maintained within the range displayed on CONSULT-II screen, go
to 

EC-99, "Basic Inspection"

 .

●

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

Overall Function Check

ABS004HN

 WITH GST

Use this procedure to check the overall function of the EVAP very small leak function. During this check, a
DTC might not be confirmed.

CAUTION:

●

Never use compressed air, doing so may damage the EVAP system.

●

Do not start engine.

●

Do not exceeded 4.12 kPa (0.042 kg/cm

2

 , 0.6 psi).

1.

Attach the EVAP service port adapter securely to the EVAP ser-
vice port.

PBIB0837E

PBIB1355E

EC-398

DTC P0456 EVAP CONTROL SYSTEM

Revision; 2004 April

2003 Murano

2.

Set the pressure pump and a hose.

3.

Also set a vacuum gauge via 3-way connector and a hose.

4.

Turn ignition switch “ON”.

5.

Connect GST and select mode 8.

6.

Using mode 8 control the EVAP canister vent control valve
(close).

7.

Apply pressure and make sure the following conditions are sat-
isfied.
Pressure to be applied: 2.7 kPa (20 mmHg, 0.79 inHg)
Time to be waited after the pressure drawn in to the EVAP
system and the pressure to be dropped: 60 seconds and
the pressure should not be dropped more than 0.4 kPa (3 mmHg, 0.12 inHg).
If NG, go to 

EC-398, "Diagnostic Procedure"

 .

If OK, go to next step.

8.

Disconnect GST.

9.

Start engine and warm it up to normal operating temperature.

10. Turn ignition switch “OFF” and wait at least 10 seconds.

11. Restart engine and let it idle for 90 seconds.

12. Keep engine speed at 2,000 rpm for 30 seconds.

13. Turn ignition switch “OFF”.

NOTE:
For more information, refer to GST instruction manual.

Diagnostic Procedure

ABS004HO

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.

SEF462UI

SEF915U