2014 NISSAN TEANA SEC

P010A MANIFOLD ABSOLUTE PRESSURE SENSOREC-237
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4. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INPUT SIGNAL CIRCUIT
1. Check the continuity between MAP sensor harness connector and ECM harness connector.
2. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK MAP SENSOR
Refer to EC-237, "Component Inspection (MAP Sensor)"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace MAP sensor.
Component Inspection (MAP Sensor)INFOID:0000000009462186
1.CHECK MAP SENSOR-1
1. Turn ignition switch OFF.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF, wait at least 5 seconds and then turn ON.
4. Check the voltage between ECM harness connector terminals as follows.
NOTE:
• To avoid the influence of intake manifold vacuum, check the voltage 1 or more minutes past after engine is stopped.
• Because the sensor is absolute pressure sens or, output value may differ depending on atmospheric
pressure and altitude.
5. Measure the atmospheric pressure.
NOTE:
As the atmospheric pressure described on the synoptic chart is the value at sea level, compensate the
pressure with the following chart.
+-
Continuity
MAP sensor ECM
Connector Terminal Connector Terminal F89 3 F90 58 Existed
+- Continuity
MAP sensor ECM
Connector Terminal Connector Terminal F89 2 F90 59 Existed
ECM
Connector + –
F90 Te r m i n a l
59 58
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0111 IAT SENSOREC-239
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P0111 IAT SENSOR
DTC LogicINFOID:0000000009462187
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Is it necessary to erase permanent DTC?
YES >> GO TO 3.
NO >> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-240, "Component Function Check"
.
NOTE:
Use the component function check to check the overall func tion of the IAT sensor circuit. During this check, a
1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-240, "Diagnosis Procedure"
.
3.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-
dure before conducti ng 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, do not add fuel.
• Before performing the following procedure, check that fuel level is between 1/4 and 4/4.
• Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
>> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE
1. Move the vehicle to a cool place. NOTE:
Cool the vehicle in an environment of ambient air temperature between −10 °C (14 °F) and 35 °C (95 °F).
2. Turn ignition switch OFF and leave the vehicle for 12 hours. CAUTION:
Never turn ignition switch ON during this procedure.
NOTE:
The vehicle must be cooled with the food open.
3. Start engine and let it idle for 5 minutes or more.
CAUTION:
Never turn ignition swit ch OFF during idling.
4. Check 1st trip DTC.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P 0 111 IAT SENSOR 1 B1
(Intake air temperature sensor 1
circuit range/performance bank 1) The comparison result of signals transmitted
to ECM from each temperature sensor (IAT
sensor, ECT sensor, FTT sensor, and EOT
sensor) shows that the voltage signal of the
IAT sensor is higher/lower than that of other
temperature sensors when the engine is
started with its cold state. • Harness or connectors
(High or low resistance in the IAT
sensor circuit)
• IAT sensor
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0112, P0113 IAT SENSOREC-241
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0112, P0113 IAT SENSOR
DTC LogicINFOID:0000000009462191
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-241, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462192
1.CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect mass air flow sensor (with inta ke air temperature sensor) harness connector.
3. Turn ignition switch ON.
4. Check the voltage between mass air flow sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between mass air flow sensor harness connector and ECM harness connector.
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0112 IAT SEN/CIRCUIT- B1
(Intake air temperature sensor
1 circuit low bank 1) An excessively low voltage from the intake
air temperature sensor is sent to ECM. • Harness or connectors
(Intake air temperature sensor circuit is
open or shorted.)
• Intake air temperature sensor
• Sensor power supply 2 circuit
P0113 IAT SEN/CIRCUIT- B1
(Intake air temperature sensor
1 circuit high bank 1) An excessively high voltage from the intake
air temperature sensor is sent to ECM.
+
−Vol tag e
(Approx.)
MAF sensor
Connector Terminal F31 3 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0116 ECT SENSOREC-243
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0116 ECT SENSOR
DTC LogicINFOID:0000000009462194
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Is it necessary to erase permanent DTC?
YES >> GO TO 3.
NO >> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-244, "Component Function Check"
.
NOTE:
Use the component function check to check the overall func tion of the ECT sensor circuit. During this check, a
1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-244, "Diagnosis Procedure"
.
3.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-
dure before conducti ng 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, do not add fuel.
• Before performing the following procedure, check that fuel level is between 1/4 and 4/4.
• Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
>> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE
1. Move the vehicle to a cool place. NOTE:
Cool the vehicle in an environment of ambient air temperature between −10 °C (14 °F) and 35 °C (95 °F).
2. Turn ignition switch OFF and leave the vehicle for 12 hours. CAUTION:
Never turn ignition switch ON during this procedure.
NOTE:
The vehicle must be cooled with the food open.
3. Start engine and let it idle for 5 minutes or more. CAUTION:
Never turn ignition swit ch OFF during idling.
4. Check 1st trip DTC.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0116 ECT SEN/CIRC
(Engine coolant temperature
sensor 1 circuit range/perfor-
mance) The comparison result of signals transmitted
to ECM from each temperature sensor (IAT
sensor, ECT sensor, FTT sensor, and EOT
sensor) shows that the voltage signal of the
ECT sensor is higher/lower than that of other
temperature sensors when the engine is
started with its cold state. • Harness or connectors
(High or low resistance in the ECT
sensor circuit)
• ECT sensor
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0117, P0118 ECT SENSOREC-245
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P0117, P0118 ECT SENSOR
DTC LogicINFOID:0000000009462198
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 DTC.
Is DTC detected?
YES >> Proceed to EC-245, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462199
1.CHECK ENGINE COOLANT TEMPERATURE SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect engine coolant temperature (ECT) sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ECT sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK ENGINE COOLANT TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between ECT sens or harness connector and ECM harness connector.
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible Cause
P0117 ECT SEN/CIRC
(Engine coolant tempera-
ture sensor 1 circuit low) An excessively low voltage from the engine
coolant temperature sensor is sent to ECM. • Harness or connectors
(Engine coolant temperature sensor cir-
cuit is open or shorted.)
• Engine coolant temperature sensor
P0118 ECT SEN/CIRC
(Engine coolant tempera-
ture sensor 1 circuit high) An excessively high voltage from the engine
coolant temperature sensor is sent to ECM.
+
−Vo l ta g e
(Approx. )
ECT sensor
Connector Terminal F54 1 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-248
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0122, P0123 TP SENSOR
P0122, P0123 TP SENSOR
DTC LogicINFOID:0000000009462201
DTC DETECTION LOGIC
NOTE:
If DTC P0122 or P0123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-407, "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 following procedure, confirm that battery voltage is more than 8 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 >> Proceed to EC-248, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462202
1.CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect electric throttle control actuator harness connector.
3. Turn ignition switch ON.
4. Check the voltage between electric throttle control actuator harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK THROTTLE POSITION SE NSOR 2 POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0122 TP SEN 2/CIRC-B1
(Throttle/pedal position sensor/
switch ″A ″ circuit low) An excessively low voltage from the TP
sensor 2 is sent to ECM. • Harness or connectors
(TP sensor 2 circuit is open or shorted.)
• Electric throttle control actuator (TP sensor 2)
P0123 TP SEN 2/CIRC-B1
(Throttle/pedal position sensor/
switch ″A ″ circuit high) An excessively high voltage from the TP
sensor 2 is sent to ECM.
+
−Voltag e
(Approx.)
Electric throttle control actuator
Connector Terminal F57 2 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0125 ECT SENSOREC-251
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0125 ECT SENSOR
DTC LogicINFOID:0000000009462204
DTC DETECTION LOGIC
NOTE:
• If DTC P0125 is displayed with P0 116, first perform the trouble diagnosis for DTC P0116. Refer to EC-
243, "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-245, "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 that “COOLAN TEMP/S” is above 10 °C (50 °F).
With GST
Follow the procedure “With CONSULT” above.
Is it above 5
°C (41°F)?
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” indicatio n increases to more than 10°C (50 °F) within 65 minutes, stop engine
because the test resu lt 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-251, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462205
1.CHECK ENGINE COOLANT TEMPERATURE SENSOR
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0125 ECT SENSOR
(Insufficient coolant tempera-
ture 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: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0127 IAT SENSOREC-253
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P0127 IAT SENSOR
DTC LogicINFOID:0000000009462207
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:
This test may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road
test is expected to be easier, it is unnecessary to lift the vehicle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Wait until engine coolant temperature is less than 96 °C (205 °F)
- Turn ignition switch ON.
- Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
- Check the engine coolant temperature.
- If the engine coolant temperature is not less than 96 °C (205 °F), turn ignition switch OFF and cool down
engine.
NOTE:
Perform the following steps before engine coolant temperature is above 96 °C (205 °F).
2. Turn ignition switch ON.
3. Select “DATA MONITOR” mode of “ENGINE” using CONSULT
4. Start engine.
5. Hold vehicle speed at more than 70 km/h (43 MPH) for 100 consecutive seconds.
CAUTION:
Always drive vehicle at a safe speed.
6. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-253, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462208
1.CHECK INTAKE AIR TEMPERATURE SENSOR
Check the intake air temperature sensor. Refer to EC-254, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM-29, "Exploded
View".
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0127 IAT SENSOR-B1
(Intake air temperature too high) Rationally incorrect voltage from the sensor is
sent to ECM, compared with the voltage signal
from engine coolant temperature sensor. • Harness or connectors
(Intake air temperature sensor
circuit is open or shorted)
• Intake air temperature sensor
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM