Nissan Pathfinder (2011 year). Instruction — part 358
EC-918
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
IGNITION SIGNAL
OK or NG
OK
>>
INSPECTION END
NG
>> GO TO 10.
4.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF, wait at least 10 seconds and then turn it ON.
2. Check voltage between ECM terminals 119, 120 and ground
with CONSULT-III or tester.
OK or NG
OK
>> GO TO 5.
NG
>> Go to
5.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser-1 harness connector.
3. Turn ignition switch ON.
4. Check voltage between condenser-1 terminal 1 and ground with
CONSULT-III or tester.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 6.
6.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E119.
3. Check harness continuity between IPDM E/R terminal 3 and condenser-1 terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK
>> Go to
NG
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
Voltage: Battery voltage
MBIB0034E
BBIA0358E
Voltage: Battery voltage
PBIB0624E
Continuity should exist.
2011 Pathfinder
IGNITION SIGNAL
EC-919
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
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• Harness connectors E2, F32
• IPDM E/R harness connector E119
• Harness for open or short between condenser-1 and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK CONDENSER-1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between condenser-1 terminal 2 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK
>> GO TO 9.
NG
>> Repair open circuit or short to power in harness or connectors.
9.
CHECK CONDENSER-1
EC-920, "Component Inspection"
OK or NG
OK
>> GO TO 10.
NG
>> 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
OK
>> GO TO 12.
NG
>> GO TO 11.
11.
DETECT MALFUNCTIONING PART
Check the following.
Continuity should exist.
1.
Ignition coils (with power transistor)
(bank 2)
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
OK
>> GO TO 13.
NG
>> 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
1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 14.
NG
>> 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
OK
>> GO TO 15.
NG
>> 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
.
Continuity should exist.
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]
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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
.
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
.
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
°
F)
PBIB0794E
2011 Pathfinder
EC-922
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
MALFUNCTION INDICATOR LAMP
MALFUNCTION INDICATOR LAMP
Component Function Check
INFOID:0000000006766521
1.
CHECK MIL FUNCTION
1. Turn ignition switch ON.
2. Check that MIL illuminates.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000006766522
1.
CHECK DTC
Check that DTC UXXXX is not displayed.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform trouble diagnosis for DTC UXXXX.
2.
CHECK DTC WITH COMBINATION METER
MWI-27, "CONSULT-III Function (METER/M&A)"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Perform trouble diagnosis for DTC indicated.
3.
CHECK INTERMITTENT INCIDENT
GI-37, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-88, "Removal and Installation"
NO
>> Repair or replace malfunctioning part.
2011 Pathfinder
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-923
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[VK56DE]
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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
2
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
- 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.
1.
CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached. Refer to
FL-16, "Removal and Installation"
.
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
OK
>> GO TO 2.
NG
>> GO TO 3.
2.
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.
No
>> GO TO 6.
3.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one. Refer to
FL-16, "Removal and Installation"
>> GO TO 4.
4.
CHECK DRAIN FILTER
EC-926, "Component Inspection"
OK or NG
OK
>> GO TO 5.
NG
>> Replace drain filter.
5.
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
6.
CHECK REFUELING EVAP VAPOR CUT VALVE
EC-926, "Component Inspection"
OK or NG
OK
>>
INSPECTION END
NG
>> Replace refueling EVAP vapor cut valve with fuel tank. Refer to
FL-16, "Removal and Installation"
.
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. Refer to
FL-16, "Removal and Installation"
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
OK
>> GO TO 2.
NG
>> GO TO 3.
2.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
BBIA0558E
2011 Pathfinder
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-925
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
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Does water drain from the EVAP canister?
Yes or No
Yes
>> GO TO 3.
No
>> GO TO 6.
3.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one. Refer to
FL-16, "Removal and Installation"
>> GO TO 4.
4.
CHECK DRAIN FILTER
EC-926, "Component Inspection"
OK or NG
OK
>> GO TO 5.
NG
>> Replace drain filter. Refer to
.
5.
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
6.
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
OK
>> GO TO 7.
NG
>> Repair or replace hoses and tubes.
7.
CHECK FILLER RECIRCULATION LINE
Check recirculation line for clogging, dents and cracks.
OK or NG
OK
>> GO TO 8.
NG
>> Replace filler filler tube.
8.
CHECK REFUELING EVAP VAPOR CUT VALVE
EC-926, "Component Inspection"
OK or NG
OK
>> GO TO 9.
NG
>> Replace refueling EVAP vapor cut valve with fuel tank. Refer to
FL-16, "Removal and Installation"
.
9.
CHECK FUEL FILLER TUBE
Check filler filler tube and hose connected to the fuel tank for clogging, dents and cracks.
OK or NG
OK
>> GO TO 10.
NG
>> Replace fuel filler tube.
10.
CHECK ONE-WAY FUEL VALVE-I
Check one-way valve for clogging.
OK or NG
OK
>> GO TO 11.
BBIA0558E
2011 Pathfinder
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