NISSAN NOTE 2016 Service Repair Manual

EC-334
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0506 ISC SYSTEM
P0506 ISC SYSTEM
DescriptionINFOID:0000000012431528
The ECM controls the engine idle speed to a specified leve
l through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idli ng speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine l oad (air conditioner, power steering and cooling fan
operation, etc.).
DTC LogicINFOID:0000000012431529
DTC DETECTION LOGIC
NOTE:
If DTC P0506 is displayed with ot her DTC, first perform the trouble diagnosis for the 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.
If the target idle speed is out of the specified value, perform EC-130, "
Description", before conducting
DTC Confirmation Procedure.
TESTING CONDITION:
• Before performing the following procedure, confirm th at battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10° C (14° F).
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and run it for at least 1 minute at idle speed.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-334, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431530
1.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-477, "
Removal and Installation".
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P0506 ISC SYSTEM
(Idle speed control system RPM
lower than expected) The idle speed is less than the target idle
speed by 100 rpm or more.
• Electric throttle control actuator
• Intake air leak
Revision: August 2015
2016 Versa Note

cardiagn.com

P0507 ISC SYSTEMEC-335
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0507 ISC SYSTEM
DescriptionINFOID:0000000012431531
The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott
le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idli ng speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.).
DTC LogicINFOID:0000000012431532
DTC DETECTION LOGIC
NOTE:
If DTC P0507 is displayed with ot her DTC, first perform the trouble diagnosis for the 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.
If the target idle speed is ou t of the specified value, perform EC-130, "
Description", before conducting
DTC Confirmation Procedure.
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10° C (14° F).
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and run it for at least 1 minute at idle speed.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-335, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431533
1.CHECK PCV HOSE CONNECTION
Confirm that PCV hose is connected correctly.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P0507 ISC SYSTEM
(Idle speed control system
RPM higher than expected) The idle speed is more than the target idle
speed by 200 rpm or more. • Electric throttle
control actuator
• Intake air leak
• PCV system
Revision: August 2015 2016 Versa Note

cardiagn.com

EC-336
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0507 ISC SYSTEM
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-477, "
Removal and Installation".
Revision: August 2015 2016 Versa Note

cardiagn.com

P050A, P050B, P050E COLD START CONTROL
EC-337
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P050A, P050B, P050E COLD START CONTROL
DescriptionINFOID:0000000012431534
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 LogicINFOID:0000000012431535
DTC DETECTION LOGIC
NOTE:
If DTC P050A, P050B or P050E is displayed with ot
her 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 with 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 15°C (59°F) and 36°C (97°F)?
YES >> GO TO 3.
NO-1 [If it is below 15° C (59°F)]>>Warm up the engine until the val ue of “COOLAN TEMP/S” reaches 15°C
(59 °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 15 °C (59° F) and 40° C
(104° F) for more than 15 seconds.
3. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
DTC No. Trouble diagnosis content DTC detecting conditionPossible 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 condition.
• Lack of intake air volume
• Fuel injection system
•ECM
P050B
Cold start ignition timing
performance ECM does not control ignition timing properly when engine is
started with pre-warming up condition.
P050E Cold start engine exhaust
temperature 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.
Revision: August 2015
2016 Versa Note

cardiagn.com

EC-338
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P050A, P050B, P050E COLD START CONTROL
Is 1st trip DTC detected?
YES >> Go to EC-338, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431536
1.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-130, "
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-248, "
DTC Logic".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Go to EC-249, "
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-337, "
DTC Logic".
Is the 1st trip DTC P050A, P 050B or P050E displayed again?
YES >> GO TO 5.
NO >> INSPECTION END
5.REPLACE ECM
Replace ECM. Refer to EC-477, "
Removal and Installation".
>> INSPECTION END
Revision: August 2015 2016 Versa Note

cardiagn.com

P0520 EOP SENSOREC-339
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0520 EOP SENSOR
DTC LogicINFOID:0000000012431537
DTC DETECTION LOGIC
NOTE:
If DTC P0520 is displayed with DTC P0643, first pe
rform the trouble diagnosis for DTC P0643. Refer to
EC-356, "
DTC 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.CHECK ENGINE OIL LEVEL
Check engine oil level. Refer to LU-7, "
Inspection".
Is inspection result normal?
YES >> GO TO 3.
NO >> Check engine oil leak. Refer to LU-7, "
Inspection".
3.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-339, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431538
1.CHECK ENGINE OIL PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect engine oil pressure sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between engine oil pressure sensor harness connector terminals.
Is inspection result normal?
YES >> GO TO 2
NO >> Repair or replace error-detected parts.
DTC No. CONSULT screen terms
(Trouble diagnosis content) Detecting condition
Possible cause
P0520 EOP SENSOR/SWITCH
[Engine oil pressure sensor
circuit] ECM detects the following status continuously for
5 seconds or more:
• A voltage signal transmitted from the engine oil
pressure sensor is lower than 0.3 V.
• A voltage signal transmitted from the engine oil pressure sensor is higher than 5.02 V. • Harness or connectors
(Engine oil pressure sensor circuit is
open or shorted.)
• Engine oil pressure sensor
Engine oil pressure sensor GroundVo l ta g e
(Approx.)
Connector Terminal
F38 1Ground 5 V
Revision: August 2015 2016 Versa Note

cardiagn.com

EC-340
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0520 EOP SENSOR
2.CHECK ENGINE OIL PRESSURE SENSOR
GROUND CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between engine oil pressure sensor harness connector and ECM harness connector.
2. Also check harness for short to ground and short to power.
Is inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK ENGINE OIL PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between engine oil pressure sensor harness connector and ECM harness connector.
2. Also check harness for short to ground and short to power.
Is inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK ENGINE OIL PRESSURE SENSOR
Refer to EC-340, "
Component Inspection".
Is inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace engine oil pressure sensor. Refer to EM-93, "
Exploded View".
Component InspectionINFOID:0000000012431539
1.CHECK ENGINE OIL PRESSURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect engine oil pressure sensor harness connector.
3. Check resistance between engine oil pr essure sensor connector terminals.
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Replace engine oil pressure sensor. Refer to EM-93, "
Exploded View".
Engine oil pressure sensorECM
Continuity
Connector Terminal Connector Terminal
F38 3F11 60 Existed
Engine oil pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
F38 2F11 47 Existed
Engine oil pressure sensor
Condition Resistance (kΩ)
Te r m i n a l
1 2
None 4 – 10
32 – 8
2 1
4 – 10
31 – 3
3 12
– 8
21 – 3
Revision: August 2015 2016 Versa Note

cardiagn.com

P0524 ENGINE OIL PRESSUREEC-341
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0524 ENGINE OIL PRESSURE
DTC LogicINFOID:0000000012431540
DTC DETECTION LOGIC
NOTE:
If DTC P0524 is displayed with DTC P0520 or P0075,
perform trouble diagnosis for DTC P0520 or P0075
first. Refer to EC-339, "
DTC Logic" or EC-180, "DTC Logic".
DTC CONFIRMATION PROCEDURE
CAUTION:
If “Diagnosis Procedure” is unfinish ed, be sure to perform Step 3 and 4.
1.PRECONDITIONING-I
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 11 V or more at idle.
>> GO TO 2.
2.PRECONDITIONING-II
Is
“Diagnosis Procedure” of DTC P0524 finished?
YES >> GO TO 5.
NO >> GO TO 3.
3.CHECK ENGINE OIL LEVEL
Check engine oil level. Refer to LU-7, "
Inspection".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Proceed to EC-342, "
Diagnosis Procedure"
4.CHECK ENGINE OIL PRESSURE
WITH CONSULT
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
3. Start the engine and check that “EOP SENSOR” changes, according to engine speeds.
Without CONSULT
DTC No. CONSULT screen terms
(Trouble diagnosis content) Detecting condition
Possible cause
P0524 ENGINE OIL PRESSURE
(Engine oil pressure too low) An engine oil pressure sensor signal
voltage applied to ECM remains lower
than the specified value continuously for
10 seconds or more when the engine
speed is 1,000 rpm or more. • Decrease in engine oil pressure
• Decrease in engine oil level
• Engine oil condition
• Engine oil pressure sensor
• Engine body
Monitor item
Condition Va l u e
(Approx.)
EOP SENSOR • Engine oil temperature: 80
°C (176 °F)
• Selector lever: P or N position (CVT), Neutral position (M/T)
• Air conditioner switch: OFF
• No load Engine speed:
600 rpm
1,053 mV or more
Engine speed:
2,000 rpm 1,802 mV or more
Revision: August 2015
2016 Versa Note

cardiagn.com

EC-342
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0524 ENGINE OIL PRESSURE
Check engine oil level. Refer to
LU-7, "Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Proceed to EC-342, "
Diagnosis Procedure"
5.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Maintain the following conditions for about 10 consecutive seconds.
NOTE:
With engine speed set around 4,000 rpm, the phenomenon can be reproduced more easily.
3. Check DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-342, "Diagnosis Procedure"
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431541
1.CHECK ENGINE OIL LEVEL
1. Turn ignition switch OFF.
2. Check engine oil level. Refer to LU-7, "
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK ENGINE OIL PRESSURE
WITH CONSULT
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
3. Start the engine and check that “EOP SENSOR” changes, according to engine speeds.
Without CONSULT
Check engine oil level. Refer to LU-7, "
Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check oil pressure. Refer to LU-7, "
Inspection".
3.CHECK ENGINE OIL PRESSURE SENSOR
Check engine oil pressure sensor. Refer to EC-340, "
Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace engine oil pressure sensor. Refer to EM-93, "
Exploded View".
4.CHECK ENGINE OIL LEAKAGE
Check engine oil leakage. Refer to LU-7, "
Inspection".
Selector leverP or N position (CVT)
Neutral position (M/T)
Engine coolant temperature 70° C (158°F) or more
Engine speed 1,000 rpm or more
Monitor item Condition Va l u e
(Approx.)
EOP SENSOR • Engine oil temperature: 80°
C (176°F)
• Selector lever: P or N position (CVT), Neutral position (M/T)
• Air conditioner switch: OFF
•No load Engine speed:
600 rpm
1,053 mV or more
Engine speed:
2,000 rpm 1,802 mV or more
Revision: August 2015
2016 Versa Note

cardiagn.com

P0524 ENGINE OIL PRESSUREEC-343
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK CAUSE OF ENGINE OIL CONSUMPTION
Check the following item.
>> Repair or replace error-detected parts.
Component InspectionINFOID:0000000012431542
1.CHECK ENGINE OIL PRESSURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect engine oil pressure sensor harness connector.
3. Check the resistance between engine oil pressure sensor connector terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace engine oil pressure sensor. Refer to EM-93, "
Exploded View".
Step Inspection itemEquipmentStandardReference
1PCV valve EC-476, "
Inspection"
2 Exhaust front tubeVisual• No blocking
• No abnormal sounds —
3 Oil pump Visual• No blocking
• No damage
—
4 •Piston
• Piston pin
• Piston ring • Piston to piston pin oil clearance
EM-102, "
Inspection"
• Piston ring side clearanceEM-102, "
Inspection"
• Piston ring end gapEM-102, "
Inspection"
5 Cylinder block • Cylinder block top surface distortion
EM-102, "Inspection"
• Piston to cylinder bore clearanceEM-102, "
Inspection"
Engine oil pressure sensor
Resistance (kΩ)
+ −
Te r m i n a l
1 24
– 10
32 – 8
2 14
– 10
31 – 3
3 12
– 8
21 – 3
Revision: August 2015 2016 Versa Note

cardiagn.com