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Nissan Juke (2016 year). Service Repair Manual - part 269

P0420 THREE WAY CATALYST FUNCTION

EC-967

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

12. Check the indication of “CATALYST”.
Which is displayed on CONSULT screen?

CMPLT >> GO TO 5.

INCMP >> GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE-II

1. Wait 5 seconds at idle.

2. Rev engine up to 2,000 to 3,000 rpm and maintain it until “INCMP” of “CATALYST” changes to “CMPLT” (It

will take approximately 5 minutes).

Does the indication change to “CMPLT”?

YES

>> GO TO 5.

>> GO TO 4.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

1. Stop engine and cool it down to less than 70

C (158

F).

2. Perform DTC confirmation procedure again.

>> GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE-III

Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to

EC-968, "Diagnosis Procedure"

>> INSPECTION END

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to

EC-967, "Component Function Check"

NOTE:

Use component function check to check the overall function of the three way catalyst (manifold). During this

check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?

YES

>> INSPECTION END

>> Proceed to

EC-968, "Diagnosis Procedure"

Component Function Check

INFOID:0000000012198468

PERFORM COMPONENT FUNCTION CHECK

Without CONSULT

1. Start engine and warm it up to the normal operating temperature.

2. Turn ignition switch OFF and wait at least 10 seconds.

3. Restart engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no

load.

4. Let engine idle for 1 minute.

5. Open engine hood.

6. Check the voltage between ECM harness connector terminals as per the following condition.

Is the inspection result normal?

YES

>> INSPECTION END

>> Proceed to

EC-968, "Diagnosis Procedure"

ECM

Condition

Voltage (V)

Connector

–

Terminal

F24

Keeping engine speed at 2500 rpm
constant under no load

The voltage fluctuation cycle takes more
than 5 seconds.
• 1 cycle: 0.6 - 1.0

→

0 - 0.3

→

0.6 - 1.0

Revision: November 2015

2016 JUKE

EC-968

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0420 THREE WAY CATALYST FUNCTION

Diagnosis Procedure

INFOID:0000000012198469

CHECK EXHAUST SYSTEM

Visually check exhaust tubes and muffler for dent.
Is the inspection result normal?

YES

>> GO TO 2.

>> Repair or replace error-detected parts.

CHECK EXHAUST GAS LEAK

1. Start engine and run it at idle.

2. Listen for an exhaust gas leak before the three way catalyst (manifold).

Is exhaust gas leak detected?

YES

>> Repair or replace error-detected parts.

>> GO TO 3.

CHECK INTAKE AIR LEAK

Listen for an intake air leak after the mass air flow sensor.
Is intake air leak detected?

YES

>> Repair or replace error-detected parts.

>> GO TO 4.

CHECK IGNITION TIMING AND IDLE SPEED

Check the following items. Refer to

EC-765, "Work Procedure"

For specification, refer to

EC-1258, "Ignition Timing"

For specification, refer to

EC-1258, "Idle Speed"

Is the inspection result normal?

YES

>> GO TO 5.

>> Follow the

EC-765, "Work Procedure"

CHECK FUEL INJECTOR

Check the fuel injector. Refer to

EC-1204, "Component Function Check"

Is the inspection result normal?

YES

>> GO TO 6.

>> Perform

EC-1204, "Diagnosis Procedure"

CHECK FUNCTION OF IGNITION COIL-I

CAUTION:

Do the following procedure in the place where ventilation is good without the combustible.

1. Turn ignition switch OFF.

2. Remove fuel pump fuse in IPDM E/R to release fuel pressure.

NOTE:

Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-

dure.

3. Start engine.

4. After engine stalls, crank it two or three times to release all fuel pressure.

5. Turn ignition switch OFF.

6. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.

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

PBIB1216E

Revision: November 2015

2016 JUKE

P0420 THREE WAY CATALYST FUNCTION

EC-969

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

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

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

10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -

0.66 in) between the edge of the spark plug and grounded metal

portion as shown in the figure.

11. Crank engine for about 3 seconds, and check whether spark is

generated between the spark plug and the grounded metal por-

tion.

CAUTION:

• Do not approach to the spark plug and the ignition coil

within 50 cm (19.7 in). Be careful not to get an electrical

shock while checking, because the electrical discharge

voltage becomes 20 kV or more.

• It might cause to damage the ignition coil if the gap of more than 17 mm (0.66 in) is taken.

NOTE:

When the gap is less than 13 mm (0.52 in), the spark might be generated even if the coil is mal-

functioning.

Is the inspection result normal?

YES

>> GO TO 10.

>> GO TO 7.

CHECK FUNCTION OF IGNITION COIL-II

1. Turn ignition switch OFF.

2. Disconnect spark plug and connect a known-good spark plug.

3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and

the grounded metal portion.

Is the inspection result normal?

YES

>> GO TO 8.

>> Check ignition coil, power transistor and their circuits. Refer to

EC-1229, "Diagnosis Procedure"

CHECK SPARK PLUG

Check the initial spark plug for fouling, etc. Refer to

EM-190,

"Inspection"

Is the inspection result normal?

YES

>> Replace spark plug(s) with standard type one(s). For

spark plug type, refer to

EM-190, "Inspection"

>> Repair or clean spark plug. Refer to

EM-189, "Exploded

View"

. Then GO TO 9.

CHECK FUNCTION OF IGNITION COIL-III

1. Reconnect the initial spark plugs.

2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and

the grounded portion.

Is the inspection result normal?

YES

>> INSPECTION END

>> Replace spark plug(s) with standard type one(s). For spark plug type, refer to

EM-189, "Removal

and Installation"

Spark should be generated.

JMBIA0066GB

Spark should be generated.

SEF156I

Spark should be generated.

Revision: November 2015

2016 JUKE

EC-970

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0420 THREE WAY CATALYST FUNCTION

10.

PERFORM DTC CONFIRMATION PROCEDURE

1. Replace three way catalyst assembly. Refer to

EX-5, "Exploded View"

2. Perform DTC confirmation procedure. Refer to

EC-966, "DTC Logic"

Is DTC P0420 detected again?

YES

>> Replace fuel injector. Refer to

EM-208, "Exploded View"

>> INSPECTION END

Revision: November 2015

2016 JUKE

P0441 EVAP CONTROL SYSTEM

EC-971

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0441 EVAP CONTROL SYSTEM

DTC Logic

INFOID:0000000012198470

DTC DETECTION LOGIC

NOTE:

If DTC P0441 is displayed with other DTC such as P2122, P2123, P2127, P2128 or P2138, first perform

trouble diagnosis for other DTC.

In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions.

Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP

canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP con-

trol system pressure sensor to intake manifold vacuum.

Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow

are adequate. If not, a malfunction is determined.

DTC CONFIRMATION PROCEDURE

INSPECTION START

Will CONSULT be used?
Will CONSULT be used?

YES

>> GO TO 2.

>> GO TO 6.

PRECONDITIONING

PBIB1026E

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0441

EVAP PURG FLOW/MON
(Evaporative emission system
incorrect purge flow)

EVAP control system does not operate
properly, EVAP control system has a leak-
age between intake manifold and EVAP
control system pressure sensor.

• EVAP canister purge volume control so-

lenoid valve stuck closed

• EVAP control system pressure sensor

and the circuit

• Loose, disconnected or improper con-

nection of rubber tube

• Blocked rubber tube
• Cracked EVAP canister
• EVAP canister purge volume control so-

lenoid valve circuit

• Accelerator pedal position sensor
• Blocked purge port
• Blocked purge line
• EVAP canister vent control valve
• EVAP control system pressure sensor re-

moved

Revision: November 2015

2016 JUKE

EC-972

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0441 EVAP CONTROL SYSTEM

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-

ing the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Always perform test at a temperature of 5

C (41

F) or more.

>> GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE-I

With CONSULT

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

5. Start engine and let it idle for at least 70 seconds.

6. Select “PURG FLOW P0441” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with CON-

SULT.

7. Touch “START”.
Is “COMPLETED” displayed on CONSULT screen?

YES

>> GO TO 5.

>> GO TO 4.

PERFORM DTC CONFIRMATION PROCEDURE-II

When the following conditions are met, “TESTING” will be displayed on the CONSULT screen. Maintain the

conditions continuously until “TESTING” changes to “COMPLETED”. (It will take at least 35 seconds.)

CAUTION:

Always drive vehicle at a safe speed.

If “TESTING” does not change for a long time, retry from step 2.

Is “COMPLETED” displayed on CONSULT screen?

YES

>> GO TO 5.

>> Perform DTC CONFIRMATION PROCEDURE again. GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE-III

Touch “SELF-DIAG RESULTS”.
Which is displayed on CONSULT screen?

>> INSPECTION END

>> Proceed to

EC-973, "Diagnosis Procedure"

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to

EC-973, "Component Function Check"

NOTE:

Use component function check to check the overall monitoring function of the EVAP control system purge flow

monitoring. During this check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?

YES

>> INSPECTION END

>> Proceed to

EC-973, "Diagnosis Procedure"

Selector lever

Suitable position

VHCL SPEED SE

32 - 120 km/h (20 - 75 mph)

ENG SPEED

500 - 3,000 rpm

B/FUEL SCHDL

1.25 - 6.5 msec

COOLANT TEMP/S

More than 0

C (32

Revision: November 2015

2016 JUKE

P0441 EVAP CONTROL SYSTEM

EC-973

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

Component Function Check

INFOID:0000000012198471

PERFORM COMPONENT FUNCTION CHECK

Without CONSULT

1. Lift up drive wheels.

2. Start engine (VDC switch OFF) and warm it up to normal operating temperature.

3. Turn ignition switch OFF, wait at least 10 seconds.

4. Turn ignition switch ON.

5. Turn ignition switch OFF, wait at least 10 seconds.

6. Start engine and wait at least 70 seconds.

7. Set voltmeter probes to ECM harness connector terminals under the following conditions.

8. Check EVAP control system pressure sensor value at idle speed and note it.

9. Establish and maintain the following conditions for at least 1 minute.

10. Verify that EVAP control system pressure sensor value stays 0.1 V less than the value at idle speed (mea-

sured at step 6) for at least 1 second.

Is the inspection result normal?

YES

>> INSPECTION END

>> Proceed to

EC-973, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000012198472

CHECK EVAP CANISTER

1. Turn ignition switch OFF.

2. Check EVAP canister for cracks.
Is the inspection result normal?

YES-1 >> With CONSULT: GO TO 2.

YES-2 >> Without CONSULT: GO TO 3.

>> Replace EVAP canister. Refer to

FL-27, "2WD : Removal and Installation"

(2WD models),

FL-30,

"AWD : Removal and Installation"

(AWD models).

CHECK PURGE FLOW

With CONSULT

1. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-

vice port and install vacuum gauge. For the location of EVAP service port, refer to

EC-650, "EVAPORA-

TIVE EMISSION SYSTEM : System Description"

2. Start engine and let it idle.

3. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT.

4. Touch “Qd” and “Qu” on CONSULT screen to adjust “PURG VOL CONT/V” opening and check vacuum

existence.

ECM

Connector

–

Terminal

E19

121

148

Air conditioner switch

Head lamp switch

Rear window defogger switch

Engine speed

Approx. 3,000 rpm

Gear position

Any position other than P, N or R

Revision: November 2015

2016 JUKE

EC-974

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0441 EVAP CONTROL SYSTEM

Is the inspection result normal?

YES

>> GO TO 7.

>> GO TO 4.

CHECK PURGE FLOW

Without CONSULT

1. Start engine and warm it up to normal operating temperature.

2. Stop engine.

3. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-

vice port and install vacuum gauge. For the location of EVAP service port, refer to

EC-650, "EVAPORA-

TIVE EMISSION SYSTEM : System Description"

4. Start engine and let it idle.

Do not depress accelerator pedal even slightly.

5. Check vacuum gauge indication before 60 seconds pass after starting engine.

6. Rev engine up to 2,000 rpm after 100 seconds pass after starting engine.

Is the inspection result normal?

YES

>> GO TO 7.

>> GO TO 4.

CHECK EVAP PURGE LINE

1. Turn ignition switch OFF.

2. Check EVAP purge line for improper connection or disconnection.

Refer to

EC-1252, "Inspection"

Is the inspection result normal?

YES

>> GO TO 5.

>> Repair EVAP purge line.

CHECK EVAP PURGE HOSE AND PURGE PORT

1. Disconnect purge hoses connected to EVAP service port

and

EVAP canister purge volume control solenoid valve

2. Blow air into each hose and EVAP purge port

PURG VOL CONT/V

Vacuum

100%

Existed

Not existed

Vacuum should not exist.

Vacuum should exist.

SEF367U

Revision: November 2015

2016 JUKE

Content .. 267 268 269 270 ..