Nissan Juke F15. Instruction — part 398
P0507 ISC SYSTEM
EC-405
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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-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]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012197947
1.
PERFORM IDLE AIR VOLUME LEARNING
Perform
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
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Proceed to
for DTC P0171.
4.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC Confirmation Procedure.
.
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
.
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
.
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
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