2014 NISSAN TEANA check engine

ELECTRONIC CONTROLLED ENGINE MOUNTEC-961
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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2. Reconnect electronic controlled engine mount
control solenoid valve harness connector.
3. Disconnect vacuum hoses connected to electroni c controlled engine mount control solenoid valve.
4. Turn ignition switch ON.
5. Select “ENGINE MOUNTING” in “ACTIVE TEST” mode with CONSULT.
6. Check air passage continuity and operation delay time under the following conditions.
Without CONSULT
1. Turn ignition switch OFF.
2. Disconnect electronic controll ed engine mount control solenoid
valve harness connector.
3. Disconnect vacuum hoses connected to electroni c controlled engine mount control solenoid valve.
4. Check air passage continuity and operation delay time under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace electronic controlled engine mount control sole- noid valve. Refer to EC-548, "ENGINE CONTROL SYST EM : Component Parts Location"
.
Condition
(ENGINE MOUNTING) Air passage continuity
between (A) and (B) Air passage continuity
between (A) and (C)
TRVL Existed Not existed IDLE Not existed Existed
Condition Air passage continuity
between (A) and (B) Air passage continuity
between (A) and (C)
12 V direct current supply be-
tween terminals 1 and 2 Existed Not existed
No supply Not existed Existed
JMBIA0180ZZ
PBIB2532E
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-962
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
FUEL INJECTOR
FUEL INJECTOR
Component Function CheckINFOID:0000000009462842
1.INSPECTION START
Turn ignition switch to START.
Are any cylinders ignited?
YES >> GO TO 2.
NO >> Proceed to EC-962, "Diagnosis Procedure"
.
2.CHECK FUEL INJECTOR FUNCTION
With CONSULT
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.
3. Check that each circuit produces a momentary engine speed drop.
Without CONSULT
1. Start engine.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-962, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462843
1.CHECK FUEL INJECTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
3. Turn ignition switch ON.
4. Check the voltage between fuel injector harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between fuel injector harness connector and IPDM E/R harness connector.
Clicking sound should be heard.
PBIB3332E
Fuel injector
Ground Voltage
Cylinder Connector Terminal
1F171
Ground Battery voltage
2F181
3F191
4F201
5F211
6F221
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

IGNITION SIGNALEC-967
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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IGNITION SIGNAL
Component Function CheckINFOID:0000000009462848
1.INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1 >> With CONSULT: GO TO 2.
YES-2 >> Without CONSULT: GO TO 3.
NO >> Proceed to EC-967, "Diagnosis Procedure"
.
2.CHECK IGNITION SIGNAL FUNCTION
With CONSULT
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.
2. Check that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-967, "Diagnosis Procedure"
.
3.CHECK IGNITION SIGNAL FUNCTION
Without CONSULT
1. Let engine idle.
2. Read the voltage signal between ECM harness connector terminals with an oscilloscope.
NOTE:
The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-967, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462849
1.CHECK ECM POWER SUPPLY
1. Turn ignition switch OFF, wait at least 10 seconds and then turn it ON.
2. Check the voltage between ECM harness connector terminals.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refer to EC-709, "Diagnosis Procedure"
.
ECM
Voltage signal
+–
Connector Terminal Connector Terminal
F78 9
E32 128
10
11
13
14
15
JMBIA0035GB
ECM Vo l ta g e
Connector Terminal Connector Terminal
F78 31 E32 128 Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-970
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> Check intermittent incident. Refer to
GI-43, "Intermittent Incident".
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-162, "Removal and Instal-
lation LH" or EM-162, "Removal and Installation RH".
Component Inspection (Igniti on Coil with Power Transistor)INFOID:0000000009462850
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as per the following.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-162, "Removal and Instal-
lation LH" or EM-162, "Removal and Installation RH".
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-II
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
4. Start engine.
5. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
12. Crank engine for approximately 3 seconds, and check whether spark is generated between the spark plug and the grounded
metal portion.
CAUTION:
• During the operation, always stay 0.5 m (19.7 in) or more
away from the spark plug and the ignition coil. Be careful
not to get an electrical s hock while checking, because the
electrical discharge voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> INSPECTION END
Terminal No. (Polarity) Resistance Ω [at 25 °C (77 °F)]
1 and 2 Except 0 or ∞
1 and 3 Except 0
2 and 3
Spark should be generated.
JMBIA0066GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-972
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
INFORMATION DISPLAY (ASCD)
INFORMATION DISPLAY (ASCD)
Component Function CheckINFOID:0000000009462852
1.CHECK INFORMATION DISPLAY
1. Start engine.
2. Press MAIN switch on ASCD steering switch.
3. Drive the vehicle at more than 40 km/h (25 MPH). CAUTION:
Always drive vehicle at a safe speed.
4. Press SET/COAST switch.
5. Check that the reading of the speedometer shows the same value as the set speed indicated in the infor-
mation display while driving the vehicle on a flat road.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-972, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462853
1.CHECK DTC
Check that DTC UXXXX, P0500 or P1574 is not displayed.
Is the inspection result normal?
YES >> GO TO 2.
NO-1 >> Perform trouble diagnosis for DTC UXXXX.
NO-2 >> Perform trouble diagnosis for DTC P0500. Refer to EC-867, "DTC Logic"
.
NO-3 >> Perform trouble diagnosis for DTC P1574. Refer to EC-918, "DTC Logic"
.
2.CHECK DTC WITH COMBINATION METER
Refer to MWI-18, "CONSULT Function (METER/M&A)"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Perform trouble diagnosis for DTC indicated.
3.CHECK INTERMITTENT INCIDENT
Refer to GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace combination meter. Refer to MWI-82, "Removal and Installation".
NO >> Repair or replace.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

REFRIGERANT PRESSURE SENSOREC-979
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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REFRIGERANT PRESSURE SENSOR
Component Function CheckINFOID:0000000009462859
1.CHECK REFRIGERANT PRE
SSURE SENSOR FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-979, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462860
1.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY
1. Disconnect refrigerant pressu re sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pr essure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK REFRIGERANT PRESSURE SE NSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pre ssure sensor harness connector and ECM harness connec-
tor.
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pre ssure sensor harness connector and ECM harness connec-
tor.
ECM
Voltage (V)
Connector +–
Te r m i n a l
F79 63 64 1.0 - 4.0
Refrigerant pressure sensor Ground Voltage (V)
Connector Terminal
E219 1 Ground Approx. 5
Refrigerant pressure sensor ECM Continuity
Connector Terminal Connector Terminal
E219 1 F79 96 Existed
Refrigerant pressure sensor ECM Continuity
Connector Terminal Connector Terminal
E219 3 F79 64 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SENSOR POWER SUPPLY2 CIRCUITEC-981
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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SENSOR POWER SUPPLY2 CIRCUIT
DescriptionINFOID:0000000009462861
ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited sensor.
Sensor power supply 1
• Accelerator pedal position (APP) sensor 1
• Camshaft position (CMP) sensor (PHASE)
• Electric throttle control actuator
• Battery current sensor
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
• Accelerator pedal position (APP) sensor 2
• Crankshaft position (CKP) sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor
• Engine oil pressure sensor
Diagnosis ProcedureINFOID:0000000009462862
1.CHECK SENSOR POWER SUPPLY 1
1. Turn ignition switch OFF.
2. Disconnect ECM harness connectors
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 2.
2.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect following sensors harness connector.
3. Check harness for short to power and short to ground, between the following terminals.
+
−Vo l ta g e
(Approx.)
ECM
Connector Terminal
F79 54
Ground 5 V
96
E32 103
107
ECM Sensor + Name +
Connector Terminal Connector Terminal
F79 54 CKP sensor (POS) F30 1
96 Refrigerant pressure sensor E219 1
E32 103 APP sensor 2 E40 5
107
EVAP control system pressure sensor B41 3
EOP sensor F87 3
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

VARIABLE INDUCTION AIR SYSTEMEC-983
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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VARIABLE INDUCTION AIR SYSTEM
Component Function CheckINFOID:0000000009462863
1.CHECK OVERALL FUNCTION-I
With CONSULT
1. Start engine and warm it up to the normal operating temperature.
2. Perform “VIAS S/V-1” in “A CTIVE TEST” mode with CONSULT.
3. Turn VIAS control solenoid valve 1 “ON” and “OFF” , and check that power valve actuator 1 rod moves.
Without CONSULT
1. Start engine and warm it up to the normal operating temperature.
2. Rev engine quickly up to approximately 5,000 rpm.
3. Check that power valve actuator 1 rod moves.
Is the inspection result normal?
YES >> GO TO 2.
NO >> EC-984, "Diagnosis Procedure"
.
2.CHECK OVERALL FUNCTION-II
With CONSULT
1. Perform “VIAS S/V-2” in “A CTIVE TEST” mode with CONSULT.
2. Turn VIAS control solenoid valve 2 “ON” and “OFF” , and check that power valve actuator 2 rod moves.
1. Power valve actuator 1 2. Power valve actuator 1 rod 3. Power valve actuator 2
4. Power valve actuator 2 rod
: Vehicle front
1. Power valve actuator 1 2. Power valve actuator 1 rod 3. Power valve actuator 2
4. Power valve actuator 2 rod
: Vehicle front
JMBIA1129ZZ
JMBIA1386ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM