Nissan Juke F15. Manual - part 398

P0507 ISC SYSTEM

EC-405

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

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EC

N

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2.

CHECK INTAKE AIR LEAK

1. Start engine and let it idle.

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

YES

>> Discover air leak location and repair.

NO

>> Replace ECM. Refer to 

EC-590, "Removal and Installation"

.

EC-406

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

P050A, P050E COLD START CONTROL

P050A, P050E COLD START CONTROL

Description

INFOID:0000000012197945

ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition.

This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions.

DTC Logic

INFOID:0000000012197946

DTC DETECTION LOGIC

NOTE:

If DTC P050A, P050B or P050E is displayed with other DTC, first perform the trouble diagnosis for

other DTC.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

before conducting 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:

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

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-I

With CONSULT

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

2. Turn ignition switch ON.

3. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

4. Check the indication of “COOLAN TEMP/S”.

With GST

Follow the procedure “With CONSULT” above.
Is the value of “COOLAN TEMP/S” between 4

°C (39°F) and 36°C (97°F)?

YES

>> GO TO 3.

NO-1 [If it is below 4

°C (39°F)]>>Warm up the engine until the value of “COOLAN TEMP/S” reaches 4°C

(39

°F) or more. Retry from step 1.

NO-2 [If it is above 36

°C (97°F)]>>Cool engine down to less than 36°C (97°F). Retry from step 1.

3.

PERFORM DTC CONFIRMATION PROCEDURE-II

With CONSULT

1. Set the select lever in N range.

2. Start the engine and warm up in idle with the value of “COOLAN TEMP/S” between 5

°C (41°F) and 40°C

(104

°F) for more than 15 seconds.

3. Check 1st trip DTC.

With GST

Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P050A

Cold start idle air control system 
performance

ECM does not control engine idle speed properly 
when engine is started with pre-warming up con-
dition.

• Lack of intake air volume
• Fuel injection system
• ECM

P050E

Cold start engine exhaust temper-
ature too low

The temperature of the catalyst inlet does not 
rise to the proper temperature when the engine 
is started with pre-warming up condition.

P050A, P050E COLD START CONTROL

EC-407

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

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YES

>> Proceed to 

EC-407, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012197947

1.

PERFORM IDLE AIR VOLUME LEARNING

Perform 

EC-162, "Description"

.

Is Idle Air Volume Learning carried out successfully?

YES

>> GO TO 2.

NO

>> Follow the instruction of Idle Air Volume Learning.

2.

CHECK INTAKE SYSTEM

Check for the cause of intake air volume lacking. Refer to the following.

• Crushed intake air passage

• Intake air passage clogging

• Clogging of throttle body
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning part

3.

CHECK FUEL INJECTION SYSTEM FUNCTION

Perform DTC Confirmation Procedure for DTC P0171. Refer to 

EC-297, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Proceed to 

EC-298, "Diagnosis Procedure"

 for DTC P0171.

4.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Erase DTC.

3. Perform DTC Confirmation Procedure.

See 

EC-406, "DTC Logic"

.

Is the 1st trip DTC P050A or P050E displayed again?

YES

>> Replace ECM. Refer to 

EC-590, "Removal and Installation"

,

NO

>> INSPECTION END

EC-408

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

P0520 EOP SENSOR

P0520 EOP SENSOR

DTC Logic

INFOID:0000000012197948

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

before conducting 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.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 5 seconds.

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

YES

>> Proceed to 

EC-408, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012197949

1.

CHECK ENGINE OIL

1. Turn ignition switch OFF.

2. Check engine oil level and pressure. Refer to 

LU-9, "Inspection"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

Detecting condition

Possible cause

P0520

EOP SENSOR/SWITCH
[Engine oil pressure (EOP) sensor 
circuit]

Signal voltage from the EOP sensor 
remains at more than 4.9 V / less than 
0.26 V for 5 seconds or more.

• Harness or connectors

(EOP sensor circuit is open or short-
ed.)
(Camshaft position sensor circuit is 
open or shorted)
(Fuel rail pressure sensor circuit is 
open or shorted.)
(Battery current sensor circuit is open 
or shorted.)
(G sensor circuit is open or shorted.) 
(Exhaust valve timing control position 
sensor circuit is open or shorted.)
(Accelerator pedal position sensor 2 
circuit is open or shorted.)
(Turbocharger boost sensor circuit is 
open or shorted.)

• Engine oil level abnormality
• EOP sensor
• Camshaft position sensor
• Fuel rail pressure sensor
• Battery current sensor
• G sensor
• Exhaust valve timing control position 

sensor

• Accelerator pedal position sensor 2
• Turbocharger boost sensor