Nissan Pathfinder (2011 year). Manual — part 358

EC-920, "Component Inspection"

OK or NG

>> GO TO 10.

>> Replace condenser-1.

10.

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV

1. Turn ignition switch OFF.

2. Reconnect all harness connectors disconnected.

3. Disconnect ignition coil harness connector.

4. Turn ignition switch ON.

5. Check voltage between ignition coil terminal 3 and ground with

CONSULT-III or tester.

OK or NG

>> GO TO 12.

>> GO TO 11.

11.

DETECT MALFUNCTIONING PART

Check the following.

Continuity should exist.

Ignition coils (with power transistor)
(bank 2)

Ignition coils (with power transistor)
(bank 1)

: Vehicle front

Voltage: Battery voltage

ALBIA0370ZZ

PBIB0138E

2011 Pathfinder

EC-920

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

IGNITION SIGNAL

• Harness connectors E2, F32

• Harness for open or short between ignition coil and harness connector F32

>> Repair or replace harness or connectors.

12.

CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Check harness continuity between ignition coil terminal 2 and ground.

Refer to Wiring Diagram.

3. Also check harness for short to power.
OK or NG

>> GO TO 13.

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

13.

CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Disconnect ECM harness connector.

2. Check harness continuity between ECM terminals 46, 60, 61, 62, 65, 79, 80, 81 and ignition coil terminal

Refer to Wiring Diagram.

3. Also check harness for short to ground and short to power.
OK or NG

>> GO TO 14.

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

14.

CHECK IGNITION COIL WITH POWER TRANSISTOR

EC-920, "Component Inspection"

OK or NG

>> GO TO 15.

>> Replace malfunctioning ignition coil with power transistor.

15.

CHECK INTERMITTENT INCIDENT

GI-37, "Intermittent Incident"

INSPECTION END

Component Inspection

INFOID:0000000006244617

IGNITION COIL WITH POWER TRANSISTOR

CAUTION:

Perform the following procedure in a place with no combustible objects and good ventilation.

1. Turn ignition switch OFF.

2. Disconnect ignition coil harness connector.

3. Check resistance between ignition coil terminals as per the fol-

lowing.

4. If NG, replace ignition coil with power transistor. Refer to

EM-

178

Continuity should exist.

Terminal No. (Polarity)

Resistance [at 25

C (77

F)]

1 and 2

Except 0 or

∞

Ω

1 and 3

Except 0

Ω

2 and 3

PBIB0847E

2011 Pathfinder

IGNITION SIGNAL

EC-921

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

If OK, go to next step.

5. Turn ignition switch OFF.

6. Reconnect all harness connectors disconnected.

7. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-

sure.

NOTE:

Do not use CONSULT-III to release fuel pressure, or fuel pres-

sure applies again during the following procedure.

8. Start engine.

9. After engine stalls, crank it 2 or 3 times to release all fuel pres-

sure.

10. Turn ignition switch OFF.

11. Remove all ignition coil harness connectors to avoid the electri-

cal discharge from the ignition coils.

12. Remove ignition coil and spark plug of the cylinder to be

checked. Refer to

EM-178

13. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.

14. Connect spark plug and harness connector to ignition coil.

15. Fix ignition coil using a rope etc. with gap of 13 - 17 mm

between the edge of the spark plug and grounded metal portion

as shown in the figure.

16. Crank engine for approximately 3 seconds, and check whether

spark is generated between the spark plug and the grounded

metal portion.

CAUTION:

• Never place the spark plug and the ignition coil within 50

cm each other. Be careful not to get an electrical shock

while checking, because the electrical discharge voltage

becomes 20 kV or more.

• It might damage the ignition coil if the gap of more than 17 mm is made.

NOTE:

When the gap is less than 13 mm, a spark might be generated even if the coil is malfunctioning.

17. If NG, replace ignition coil with power transistor. Refer to

EM-178

CONDENSER-1

1. Turn ignition switch OFF.

2. Disconnect condenser-1 harness connector.

3. Check resistance between condenser-1 terminals 1 and 2.

Spark should be generated.

ALBIA0351ZZ

PBIB2325E

Resistance

Above 1 M

Ω

at 25

C (77

PBIB0794E

2011 Pathfinder

EC-922

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

MALFUNCTION INDICATOR LAMP

MALFUNCTION INDICATOR LAMP

Component Function Check

INFOID:0000000006766521

CHECK MIL FUNCTION

1. Turn ignition switch ON.

2. Check that MIL illuminates.
Is the inspection result normal?

YES

>> INSPECTION END

>> Proceed to

EC-922, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000006766522

CHECK DTC

Check that DTC UXXXX is not displayed.
Is the inspection result normal?

YES

>> GO TO 2.

>> Perform trouble diagnosis for DTC UXXXX.

CHECK DTC WITH COMBINATION METER

MWI-27, "CONSULT-III Function (METER/M&A)"

Is the inspection result normal?

YES

>> GO TO 3.

>> Perform trouble diagnosis for DTC indicated.

CHECK INTERMITTENT INCIDENT

GI-37, "Intermittent Incident"

Is the inspection result normal?

YES

>> Replace combination meter. Refer to

MWI-88, "Removal and Installation"

>> Repair or replace malfunctioning part.

2011 Pathfinder

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

EC-923

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

System Description

INFOID:0000000006244618

From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut

valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is

released to the atmosphere.

When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and

refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged

during driving.

WARNING:

When conducting inspections below, always observe the following:

• Put a “CAUTION: FLAMMABLE” sign in workshop.

• Never smoke while servicing fuel system. Keep open flames and sparks away from work area.

• Always furnish the workshop with a CO

fire extinguisher.

CAUTION:

• Before removing fuel line parts, carry out the following procedures:

- Put drained fuel in an explosion-proof container and put lid on securely.

- Release fuel pressure from fuel line. Refer to

EC-938, "Fuel Pressure Check"

- Disconnect battery ground cable.

• Always replace O-ring when the fuel gauge retainer is removed.

• Never kink or twist hose and tube when they are installed.

• Never tighten hose and clamps excessively to avoid damaging hoses.

• After installation, run engine and check for fuel leakage at connection.

• Never attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.

Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.

Diagnosis Procedure

INFOID:0000000006244619

SYMPTOM: FUEL ODOR FROM EVAP CANISTER IS STRONG.

CHECK EVAP CANISTER

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

attached. Refer to

2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor

attached.

The weight should be less than 2.0 kg (4.4 lb)

OK or NG

>> GO TO 2.

>> GO TO 3.

CHECK IF EVAP CANISTER IS SATURATED WITH WATER

JMBIA1930GB

2011 Pathfinder

EC-924

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

Does water drain from the EVAP canister?
Yes or No

Yes

>> GO TO 3.

>> GO TO 6.

REPLACE EVAP CANISTER

Replace EVAP canister with a new one. Refer to

>> GO TO 4.

CHECK DRAIN FILTER

OK or NG

>> GO TO 5.

>> Replace drain filter.

DETECT MALFUNCTIONING PART

Check the EVAP hose between EVAP canister and drain filter for clogging or poor connection.

>> Repair or replace EVAP hose. Refer to

EM-166

CHECK REFUELING EVAP VAPOR CUT VALVE

OK or NG

INSPECTION END

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

SYMPTOM: CANNOT REFUEL/FUEL ODOR FROM THE FUEL FILLER OPENING IS STRONG
WHILE REFUELING.

CHECK EVAP CANISTER

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

attached. Refer to

2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor

attached.

The weight should be less than 2.0 kg (4.4 lb)

OK or NG

>> GO TO 2.

>> GO TO 3.

CHECK IF EVAP CANISTER IS SATURATED WITH WATER

BBIA0558E

2011 Pathfinder

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

EC-925

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

Does water drain from the EVAP canister?
Yes or No

Yes

>> GO TO 3.

>> GO TO 6.

REPLACE EVAP CANISTER

Replace EVAP canister with a new one. Refer to

>> GO TO 4.

CHECK DRAIN FILTER

OK or NG

>> GO TO 5.

>> Replace drain filter. Refer to

EC-512

DETECT MALFUNCTIONING PART

Check the EVAP hose between EVAP canister and drain filter for clogging or poor connection.

>> Repair or replace EVAP hose. Refer to

EM-166

CHECK VENT HOSES AND VENT TUBES

Check hoses and tubes between EVAP canister and refueling EVAP vapor cut valve for clogging, kinks, loose-

ness and improper connection.
OK or NG

>> GO TO 7.

>> Repair or replace hoses and tubes.

CHECK FILLER RECIRCULATION LINE

Check recirculation line for clogging, dents and cracks.
OK or NG

>> GO TO 8.

>> Replace filler filler tube.

CHECK REFUELING EVAP VAPOR CUT VALVE

OK or NG

>> GO TO 9.

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