2014 NISSAN TEANA engine

IGNITION SIGNALEC-511
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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IGNITION SIGNAL
Component Function CheckINFOID:0000000009462445
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-511, "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-511, "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.
*1: Except for California
*2: For California
NOTE:
The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-511, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462446
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.
ECM
Voltage signal
+–
Connector Terminal Connector Terminal
F13
*1
F90*2
86 E10
*1
E31*2128
87
90
91
JMBIA0035GB
ECM Vo l ta g e
Connector +–
Te r m i n a l
E10
*1
E31*2121 128 Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-514
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
IGNITION SIGNAL
9.CHECK IGNITION COIL WITH POWER TRANSISTOR
Check ignition coil with power transistor. Refer to EC-514, "Component Inspection (Ignition Coil with Power
Transistor)".
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-40, "Removal and Installa-
tion".
Component Inspection (Ignition Coil with Power Transistor)INFOID:0000000009462447
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-1
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-40, "Removal and Installa-
tion".
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-2
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.
Ignition coil
Resistance Ω [at 25 °C (77 °F)]
+-
Terminal No. (Polarity)
1 2 Except 0 or
∞
3 Except 0
23
Spark should be generated.
JMBIA0066GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-516
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
INFORMATION DISPLAY (ASCD)
INFORMATION DISPLAY (ASCD)
Component Function CheckINFOID:0000000009462449
1.CHECK INFORMATION DISPLAY
1. Start engine.
2. Press ASCD 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/ − 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-516, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462450
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-380, "DTC Logic"
.
NO-3 >> Perform trouble diagnosis for DTC P1574. Refer to EC-452, "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
Perform GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace combination meter. Refer to MWI-82, "Removal and Installation".
NO >> Repair or replace error-detected parts.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

REFRIGERANT PRESSURE SENSOREC-523
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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REFRIGERANT PRESSURE SENSOR
Component Function CheckINFOID:0000000009462456
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.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-523, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462457
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.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
ECM
Voltage (V)
Connector +–
Te r m i n a l
E10
*1
E31*2103 124 1.0 - 4.0
+ -Vo l ta g e
(Approx.)
Refrigerant pressure sensor
Connector Terminal E219 1 Ground 5 V
+- Continuity
Refrigerant pressure sensor ECM
Connector Terminal Connector Terminal
E219 1 E10
*1
E31*2104 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ENGINE CONTROL SYSTEMEC-527
< SYMPTOM DIAGNOSIS > [QR25DE]
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SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM
Symptom TableINFOID:0000000009462460
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 11232 22 3 2 EC-508
Fuel pressure regulator system 334444444 4EC-182
Fuel injector circuit 11232 22 2EC-505
Fuel level sensor circuitEC-376,
EC-378
Fuel tank temperature sensor circuit EC-304,
EC-306
Evaporative emission system 334444444 4 EC-536
Air Positive crankcase ventilation sys-
tem 334444444 41
EC-539
Incorrect idle speed adjustment 1 1 1 1 1 EC-179
Electric throttle control actuator 112332222 2 2EC-475,
EC-480
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-535
Ignition circuit 11222 22 2EC-511
Main power supply and ground circuit 22333 33 23 EC-203
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-528
< SYMPTOM DIAGNOSIS >[QR25DE]
ENGINE CONTROL SYSTEM
Mass air flow sensor circuit
1
12 2
222 2 EC-228,
EC-232
Intake air temperature sensor circuit EC-240,
EC-241
Engine coolant temperature sensor circuit
333
EC-245,
EC-251
Air fuel ratio (A/F) sensor 1 circuit EC-258
,
EC-262
,
EC-265
,
EC-289
,
EC-468
Throttle position sensor circuit
22EC-248
,
EC-315
,
EC-426
,
EC-427
,
EC-488
Accelerator pedal position sensor circuit 3 2 1 EC-482
,
EC-485
,
EC-491
Heated oxygen sensor 2 circuit 6 6 6 6 5 EC-268
,
EC-276
,
EC-284
Knock sensor circuit 2 3 EC-324
Engine oil temperature sensor circuit 4 2 3EC-311,
EC-312
Engine oil pressure sensor circuit 4 4 3 3 3 3 EC-388,
EC-392
Crankshaft position sensor (POS) circuit 2 2 EC-326
Camshaft position sensor (PHASE) circuit 3 2EC-329
Vehicle speed signal circuit 2 3 3 3EC-380
ECM 22333333333EC-400
,
EC-401
,
EC-402
,
EC-404
Intake valve timing control solenoid valve cir-
cuit 32 13223 3 EC-209,
EC-221
Intake valve timing intermediate lock control
solenoid valve circuit EC-394
SYMPTOM
Reference page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ENGINE CONTROL SYSTEMEC-529
< SYMPTOM DIAGNOSIS > [QR25DE]
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1 - 6: The numbers refer to the order of inspection.
(continued on next table)
SYSTEM — ENGINE MECHANICAL & OTHER
Exhaust valve timing control solenoid valve
circuit 32 13223 3
EC-225
PNP signal circuit 3 3 3 3 3 EC-410
Refrigerant pressure sensor circuit 2 3 3 4EC-523
Electrical load signal circuit 3EC-503
Intake manifold runner control valve motor cir-
cuit 44
EC-462
Intake manifold runner control valve position
sensor circuit 44
EC-465
Intake manifold tuning valve circuit 1 EC-456
Manifold absolute pressure sensor circuit 3EC-236
Air conditioner circuit 223333333 3 2HAC-46,
HAC-139
Battery current sensor circuit 4 5 5 3 EC-428
,
EC-431
,
EC-434
,
EC-438
Battery temperature sensor circuit 4 5 5 3 EC-440
ASCD steering switch circuitEC-442
ABS actuator and electric unit (control unit) 4BRC-55
SYMPTOM
Reference page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-530
< SYMPTOM DIAGNOSIS >[QR25DE]
ENGINE CONTROL SYSTEM
SYMPTOM
Reference page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code A AAB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank 5
5 FL-10
Fuel piping 5 5 5 5 5 5
EM-41
Va p o r l o c k —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gas-
oline, Low octane) —
Air Air duct
55555 5 EM-29
Air cleaner
Air leakage from air duct
(Mass air flow sensor — elec-
tric throttle control actuator)
555 5
Electric throttle control actua-
tor EM-30
Air leakage from intake mani-
fold/Collector/Gasket
Cranking Battery 111111
11
PG-73

Generator circuit CHG-9
Starter circuit 3STR-6
Signal plate 6EM-88
PNP signal 4TM-206
Engine Cylinder head
55555 55 5 EM-78
Cylinder head gasket 4 3
Cylinder block
66666 66 6 4
EM-88
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM