2016 NISSAN NOTE air conditioning

P0507 ISC SYSTEMEC-335
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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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

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P050A, P050B, P050E COLD START CONTROL
EC-337
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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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

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P0520 EOP SENSOREC-339
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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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

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P0524 ENGINE OIL PRESSUREEC-341
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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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

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P0603 ECMEC-349
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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P0603 ECM
DTC LogicINFOID:0000000012741284
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltag e is 11 V or more with ignition
switch ON.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 1 second.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Repeat step 1 and 2 for 10 times.
4. Turn ignition switch ON.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-349, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012741285
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Perform trouble diagnosis for ECM power supply and ground circuit. Refer to EC-159, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-42, "
Intermittent Incident".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC confirmation procedure. Refer to EC-349, "
DTC Logic".
Is the 1st trip DTC
P0603 displayed again?
YES >> Replace ECM. Refer to EC-477, "Removal and Installation".
NO >> INSPECTION END
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P0603 ECM BACK UP CIRCUIT
[Internal control module keep
alive memory (KAM) error] • Malfunction in the internal back up RAM of ECM.
• Malfunction in the inte
rnal EEP-ROM system of
ECM. •ECM power supply
•ECM
Revision: August 2015
2016 Versa Note

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EC-356
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0643 SENSOR POWER SUPPLY
P0643 SENSOR POWER SUPPLY
DTC LogicINFOID:0000000012431554
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-356, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431555
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-44, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK SENSOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
DTC No. Trouble diagnosis content DTC detecting condition Possible cause
P0643 Sensor power supply circuit
short ECM detects a voltage of power
source for sensor is excessively low
or high. • Harness or connectors
(Accelerator pedal position 1 circuit is shorted.)
(Throttle position sensor 1 circuit is shorted.)
(Camshaft position sensor circuit is shorted.)
(Exhaust valve timing control position sensor cir-
cuit is shorted.)
(Engine oil pressure sensor circuit is shorted.)
• Accelerator pedal position sensor
• Throttle position sensor
• Camshaft position sensor
• Exhaust valve timing control position sensor
• Engine oil pressure sensor
Revision: August 2015 2016 Versa Note

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P1078 EVT CONTROL POSITION SENSOREC-361
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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P1078 EVT CONTROL POSITION SENSOR
DTC LogicINFOID:0000000012431560
DTC DETECTION LOGIC
NOTE:
If DTC P0340 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.
TESTING CONDITION:
Before performing the follo wing procedure, confirm that battery vo ltage is more than 10.5 V with igni-
tion switch ON.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-282, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431561
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-44, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK EXHAUST VALVE TIMING CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect exhaust valve timing control position sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between exhaust valve timing c ontrol position sensor harness connector and ground.
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P1078 EXH TIM SEN/CIRC-B1
(Exhaust valve timing con-
trol position sensor) An excessively high or low
voltage from the sensor is
sent to ECM. • Harness or connectors
(Exhaust valve timing control position sensor circuit is open
or shorted)
• Accumulation of debris to the signal pick-up portion of the camshaft
• Exhaust valve timing control position sensor
Exhaust valve timing control posi-
tion sensor GroundVoltage
Connector Terminal
F56 1Ground Approx. 5 V
Revision: August 2015 2016 Versa Note

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P1212 TCS COMMUNICATION LINEEC-365
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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P1212 TCS COMMUNICATION LINE
DescriptionINFOID:0000000012431567
This CAN communication line is used to control the
smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and “ABS actuator and electric unit (control unit)”.
Be sure to erase the malf unction information such as DTC not onl y for “ABS actuator and electric unit
(control unit)” but also for ECM after TCS related repair.
DTC LogicINFOID:0000000012431568
DTC DETECTION LOGIC
NOTE:
• If DTC P1212 is displayed with DTC U1001, first pe rform the trouble diagnosis for DTC U1001. Refer
to EC-164, "
DTC Logic".
• If DTC P1212 is displayed with DT C P0607, first perform the trouble diagnosis for DTC P0607. Refer
to EC-353, "
DTC Logic".
Freeze frame data is not stored in the ECM for this self-diagnosis.
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 10.5V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-365, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431569
Perform the trouble diagnosis for TCS. Refer to BRC-52, "Work Flow".
NOTE:
If DTC P1212 is displayed with DTC UXXXX and/or P0607, perform the following trouble diagnosis.
• Trouble diagnosis for DTC UXXXX Refer to EC-87, "
DTCIndex".
• Trouble diagnosis for DTC P0607 Refer to EC-353, "
DTC Logic".
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P1212 TCS/CIRC
(TCS communication line) ECM can not receive the information from
“ABS actuator and electric unit (control
unit)” continuously. • Harness or connectors
(CAN communication line is open or shorted.)
• ABS actuator and electric unit (control unit)
• Dead (Weak) battery
Revision: August 2015 2016 Versa Note

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