Heat NISSAN NOTE 2016 Service Workshop Manual

EC-174
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0030, P0031, P0032
A/F SENSOR HEATER
P0030, P0031, P0032 A/F SENSOR HEATER
DTC LogicINFOID:0000000012723407
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 th at battery voltage is more than between 11 V 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-174, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012723408
1.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check the voltage between A/F sensor 1 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
DTC No. Trouble diagnosis name
(Trouble diagnosis con-
tent) DTC detecting condition Possible cause
P0030 A/F SEN 1 HTR (B1)
(Air fuel ratio (A/F) sensor
1 heater control circuit) Deterioration in A/F sensor 1 heater performance.
(Voltage signal transmitted from A/F sensor 1 heat-
er to ECM is higher/lower than voltage in the nor-
mal range.)
• Harness or connectors
(A/F sensor 1 heater circuit is open or
shorted.)
• A/F sensor 1 heater
P0031 A/F SEN 1 HTR (B1)
(Air fuel ratio (A/F) sensor
1 heater control circuit low) The current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the A/F sensor 1 heater.)
P0032 A/F SEN 1 HTR (B1)
(Air fuel ratio (A/F) sensor
1 heater control circuit
high) The current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the A/F sensor 1 heater.) • Harness or connectors
(A/F sensor 1 heater circuit is short-
ed.)
• A/F sensor 1 heater
+
−Voltag e
A/F sensor 1
Connector Terminal F12 4Ground Battery voltage
Revision: August 2015 2016 Versa Note

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P0030, P0031, P0032 A/F SENSOR HEATER
EC-175
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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2.CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK A/F SENSOR 1 HEATER
Check the A/F sensor 1 heater. Refer to EC-175, "
Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> GO TO 4.
4.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ra tio (A/F) sensor 1. Refer to EM-31, "
Exploded View".
CAUTION:
• Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
• Before installing new A/F senso r, clean exhaust system threads using Oxygen Sensor Thread
Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved Anti-seize Lubricant
(commercial service tool).
>> INSPECTION END
Component InspectionINFOID:0000000012723409
1.CHECK AIR FUEL RATIO (A/F) SENSOR 1
1. Turn ignition switch OFF.
2. Disconnect A/F sensor 1 harness connector.
3. Check resistance between A/F sensor 1 terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace air fuel ratio (A/F) sensor 1. Refer to EM-31, "
Exploded View".
CAUTION:
+ −
Continuity
A/F sensor 1 ECM
Connector Terminal Connector Terminal F12 3F10 3 Existed
+ −
Resistance
A/F sensor 1
Te r m i n a l
3 41
.8 - 2 .4 4 Ω [at 25 °C (77 °F)]
1
∞ Ω
(Continuity should not exist)
2
4 1
2
Revision: August 2015
2016 Versa Note

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EC-176
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0030, P0031, P0032
A/F SENSOR HEATER
• Discard any sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard
surface such as a concrete floor; use a new one.
• Before installing new sensor, clean exhaust system threads usi ng Oxygen Sensor Thread Cleaner
[commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial
service tool).
>> INSPECTION END
Revision: August 2015 2016 Versa Note

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P0037, P0038 HO2S2 HEATEREC-177
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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P0037, P0038 HO2S2 HEATER
DTC LogicINFOID:0000000012431393
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 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn ignition switch ON and select “DATA MONITOR” mode of “ENGINE” using CONSULT.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-177, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431394
1.CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 (HO2S2) harness connector.
3. Turn ignition switch ON.
4. Check the voltage between HO2S2 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P0037 HO2 HTR (B1)
(Heated oxygen sensor 2
heater control circuit low) The current amperage in the heated oxygen sensor 2
heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.) • Harness or connectors
(Heated oxygen sensor 2 heater
circuit is open or shorted.)
• Heated oxygen sensor 2 heater
P0038 HO2 HTR (B1)
(Heated oxygen sensor 2
heater control circuit high) The current amperage in the heated oxygen sensor 2
heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.) • Harness or connectors
(Heated oxygen sensor 2 heater
circuit is shorted.)
• Heated oxygen sensor 2 heater
HO2S2 GroundVoltage
Connector Terminal
E63 2Ground Battery voltage
Revision: August 2015 2016 Versa Note

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EC-178
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0037, P0038 HO2S2 HEATER
NO >> Repair or replace error-detected parts.
2.CHECK HO2S2 OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between HO2S2 harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK HEATED OXYGEN SENSOR 2 HEATER
Check the heated oxygen sensor 2 heater. Refer to EC-178, "
Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> GO TO 4.
4.REPLACE HEATED OXYGEN SENSOR 2
Replace heated oxygen sensor 2. Refer to EX-5, "
Exploded View".
CAUTION:
• Discard any sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
• Before installing new sensor, clean exhaust system threads usi ng Oxygen Sensor Thread Cleaner
[commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial
service tool).
>> INSPECTION END
Component InspectionINFOID:0000000012431395
1.CHECK HEATED OXYGEN SENSOR 2 HEATER
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 (HO2S2) harness connector.
3. Check resistance between HO2S2 terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE HEATED OXYGEN SENSOR 2
HO2S2 ECM
Continuity
Connector Terminal Connector Terminal
E63 3F10 5 Existed
Heated oxygen sensor 2
Resistance
+ −
Te r m i n a l
2 33.4 - 4.4 Ω [at 25°C (77 °F)]
1 2
∞ Ω
(Continuity should not exist)
3
4
4 1
2
3
Revision: August 2015
2016 Versa Note

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P0037, P0038 HO2S2 HEATEREC-179
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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EC
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Replace heated oxygen sensor 2. Refer to
EX-5, "Exploded View".
CAUTION:
• Discard any sensor which has been dropped from a he ight of more than 0.5 m (19.7 in) onto a hard
surface such as a concrete floor; use a new one.
• Before installing new sensor, clean exhaust syst em threads using Oxygen Sensor Thread Cleaner
[commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial
service tool).
>> INSPECTION END
Revision: August 2015 2016 Versa Note

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EC-200
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0116 ECT SENSOR
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to
EC-200, "Diagnosis Procedure".
NO >> INSPECTION END
Component Function CheckINFOID:0000000012431416
1.CHECK ENGINE COOLANT TE MPERATURE (ECT) SENSOR
1. Turn ignition switch OFF.
2. Disconnect ECT sensor harness connector.
3. Remove ECT sensor. Refer to CO-23, "
Exploded View".
4. Check resistance between ECT sensor terminals by heating
with hot water as shown in the figure.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent
Incident".
NO >> Proceed to EC-200, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000012431417
1.CHECK ENGINE COOLANT TE MPERATURE (ECT) SENSOR
Check ECT sensor. Refer to EC-200, "
Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace ECT sensor. Refer to CO-23, "
Exploded View".
Component InspectionINFOID:0000000012431418
1.CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR
1. Turn ignition switch OFF.
2. Disconnect ECT sensor harness connector.
3. Remove ECT sensor.
4. Check resistance between ECT sensor terminals by heating with hot water as shown in the figure.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace engine coolant temperature sensor. Refer to CO-23, "
Exploded View".
ECT sensor
Condition Resistance (k Ω)
Te r m i n a l
1 2 Temperature [ °C ( °F)] 20 (68) 2.10 – 2.90
50 (122) 0.68 – 1.00
90 (194) 0.236 – 0.260
JMBIA0080ZZ
ECT sensor ConditionResistance (kΩ)
Te r m i n a l
1 2 Temperature [ °C ( °F)] 20 (68) 2.10 - 2.90
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
JMBIA0080ZZ
Revision: August 2015 2016 Versa Note

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EC-202
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0117, P0118 ECT SENSOR
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to EC-202, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace engine coolant temperature sensor. Refer to CO-23, "
Exploded View".
5.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000012431421
1.CHECK ENGINE COOLANT TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect engine coolant temperature sensor harness connector.
3. Remove engine coolant temperature sensor. Refer to CO-23, "
Exploded View"
4. Check resistance between engine coolant temperature sensor
terminals by heating with hot water as shown in the figure.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace engine coolant temperature sensor. Refer to CO-23, "
Exploded View".
ECT sensor ECM
Continuity
Connector Terminal Connector Terminal
F6 2F11 44 Existed
Terminals Condition Resistance
1 and 2 Temperature [ °C ( °F)] 20 (68) 2.10 - 2.90 kΩ
50 (122) 0.68 - 1.00 kΩ
90 (194) 0.236 - 0.260 kΩ
JMBIA0080ZZ
Revision: August 2015 2016 Versa Note

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EC-206
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0125 ECT SENSOR
P0125 ECT SENSOR
DTC LogicINFOID:0000000012431425
DTC DETECTION LOGIC
NOTE:
•
If DTC P0125 is displayed with P0116, first perfo rm the trouble diagnosis for DTC P0116. Refer to EC-
199, "DTC Logic".
• If DTC P0125 is displayed with P0117 or P0118, fi rst perform the trouble diagnosis for DTC P0117 or
P0118. Refer to EC-201, "
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 COOLANT TEMPERATURE SENSOR FUNCTION
With CONSULT
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
3. Check “COOLAN TEMP/S”.
With GST
Follow the procedure “With CONSULT” above.
Is it above
−6°C [21°F(for CVT)] or 5°C [41°F(forM/T)]?
YES >> INSPECTION END
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Start engine and run it for 65 minutes at idle speed.
2. Check 1st tip DTC.
If “COOLAN TEMP/S” indication increases to more than 10 °C (50° F) within 65 minutes, stop engine
because the test result will be OK.
CAUTION:
Be careful not to overheat engine.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-206, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431426
1.CHECK ENGINE COOLANT TEMPERATURE SENSOR
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P0125 ECT SENSOR
(Insufficient engine coolant
temperature for closed loop
fuel control) • Voltage sent to ECM from the sensor is not
practical, even when some time has passed
after starting the engine.
• Engine coolant temperature is insufficient for
closed loop fuel control. • Harness or connectors
(High resistance in the circuit)
• Engine coolant temperature sensor
•Thermostat
Revision: August 2015 2016 Versa Note

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P0125 ECT SENSOREC-207
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
C
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Check the engine coolant temperature sensor. Refer to
EC-207, "Component Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace engine coolant temperature sensor. Refer to CO-23, "
Exploded View".
2.CHECK THERMOSTAT OPERATION
When the engine is cold [lower than 70 °C (158° F)] condition, grasp lower radiator hose and confirm the engine
coolant does not flow.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Repair or replace thermostat. Refer to CO-20, "
Exploded View".
Component InspectionINFOID:0000000012431427
1.CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR
1. Turn ignition switch OFF.
2. Disconnect ECT sensor harness connector.
3. Remove ECT sensor.
4. Check resistance between ECT sensor terminals by heating with hot water as shown in the figure.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace engine coolant temperature sensor. Refer to CO-23, "
Exploded View".
ECT sensor
ConditionResistance (kΩ)
Te r m i n a l
1 2 Temperature [ °C ( °F)] 20 (68) 2.10 - 2.90
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
JMBIA0080ZZ
Revision: August 2015 2016 Versa Note

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