2014 NISSAN TEANA SEC

EC-318
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
P0300, P0301, P0302, P0303, P0304 MISFIRE
DTC LogicINFOID:0000000009462255
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crank-
shaft position (CKP) sensor (POS) signal to vary , ECM can determine that a misfire is occurring.
The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage) On the 1st trip, when a misfire condition occurs that can damage the three way catalyst (TWC) due to
overheating, the MIL will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions
for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will turn off.
If another misfire condition occurs that can dam age the TWC on a second trip, the MIL will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will remain on.
If another misfire condition occurs that can damage the TWC, the MIL will begin to blink again.
2. Two Trip Detection Logic (Exhaust quality deterioration) For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MIL will only
light when the misfire is detected on a second trip. Du ring this condition, the ECM monitors the CKP sen-
sor signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.
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
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Restart engine and let it idle for about 15 minutes.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-319, "Diagnosis Procedure".
Sensor Input signal to ECM ECM function
Crankshaft position sensor (POS) Engine speed On board diagnosis of misfire
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0300 MULTI CYL MISFIRE
(Random/multiple cylinder misfire detected) Multiple cylinder misfire.
• Improper spark plug
• Insufficient compression
• Incorrect fuel pressure
• Fuel Injector circuit is open or shorted
• Fuel injector
• Intake air leak
• Ignition signal circuit is open or shorted
• Lack of fuel
• Signal plate
• A/F sensor 1
• Incorrect PCV hose connection
P0301
CYL 1 MISFIRE
(Cylinder 1 Misfire Detected) No. 1 cylinder misfires.
P0302 CYL 2 MISFIRE
(Cylinder 2 Misfire Detected) No. 2 cylinder misfires.
P0303 CYL 3 MISFIRE
(Cylinder 3 Misfire Detected) No. 3 cylinder misfires.
P0304 CYL 4 MISFIRE
(Cylinder 4 Misfire Detected) No. 4 cylinder misfires.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0300, P0301, P0302, P0303, P0304 MISFIRE
EC-319
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-2
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Start engine and drive the vehicle as per the similar conditions to (1st trip) Freeze Frame Data for a certain time. Refer to the table below.
Hold the accelerator pedal as steady as possible.
The similar conditions to (1st trip) Freeze Frame Da ta means the vehicle operation that the following con-
ditions should be satisfied at the same time.
CAUTION:
Always drive vehicle in safe manner according to tr affic conditions and obey all traffic laws when
driving.
The time to driving varies according to the engine speed in the freeze frame data.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-319, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462256
1.CHECK FOR INTAKE AIR LEAK AND PCV HOSE
1. Start engine and run it at idle speed.
2. Listen for the sound of the intake air leak.
3. Check PCV hose connection.
Is intake air leak detected?
YES >> Discover air leak location and repair.
NO >> GO TO 2.
2.CHECK FOR EXHAUST SYSTEM CLOGGING
Stop engine and visually check exhaust tube, three way catalyst and muffler for dents.
Is the inspection result normal?
YES-1 >> With CONSULT: GO TO 3.
YES-2 >> Without CONSULT: GO TO 4.
NO >> Repair or replace it.
3.PERFORM POWER BALANCE TEST
With CONSULT
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
3. Make sure that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 4.
Engine speed Engine speed in the freeze frame data ± 400 rpm
Vehicle speed Vehicle speed in the freeze frame data ± 10 km/h (6 MPH)
Engine coolant temperature (T)
condition When the freeze frame data shows lower than 70
°C (158 °F),
T should be lower than 70 °C (158 °F).
When the freeze frame data shows higher than or equal to 70 °C (158 °F),
T should be higher than or equal to 70 °C (158 °F).
Engine speed Time
Around 1,000 rpm Approximately 10 minutes
Around 2,000 rpm Approximately 5 minutes
More than 3,000 rpm Approximately 3.5 minutes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-320
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
4.CHECK FUNCTION OF FUEL INJECTOR
1. Start engine and let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Perform trouble diagnosis for FUEL INJECTOR. Refer
to EC-505, "Diagnosis Procedure"
.
5.CHECK FUNCTION OF IGNITION COIL-1
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. 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.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. 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.
11. Crank engine for about 3 seconds, and check whether spark is generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spar k plug and the ignition coil
within 50 cm (19.7 in). Be car eful not to get an electrical
shock while checking, becau se 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 >> GO TO 9.
NO >> GO TO 6.
6.CHECK FUNCTION OF IGNITION COIL-2
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded metal portion.
Is the inspection result normal?
Clicking noise should be heard.
PBIB3332E
Spark should be generated.
JMBIA0066GB
Spark should be generated.
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P0300, P0301, P0302, P0303, P0304 MISFIRE
EC-321
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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YES >> GO TO 7.
NO >> Check ignition coil, power transistor and their circuits. Refer to EC-511, "Diagnosis Procedure"
.
7.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-111, "Standard and Limit"
.
NO >> Repair or clean spark plug. Then GO TO 8.
8.CHECK FUNCTION OF IGNITION COIL-3
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type. Refer to EM-111, "Standard
and Limit".
9.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-26, "Compression pressure"
.
Is the inspection result normal?
YES >> GO TO 10.
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero.
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-182, "Work Procedure"
.
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”. Refer to FL-6, "Removal and Installation".
NO >> Repair or replace.
12.CHECK IGNITION TIMING
Check the following items.
For procedure, refer to EC-170, "Work Procedure"
.
For specification, refer to EC-541, "Ignition Timing"
.
Is the inspection result normal?
YES >> GO TO 13.
NO >> Follow the EC-170, "Work Procedure"
.
SEF156I
Spark should be generated.
At idling: Approximately 350 kPa (3.57 kg/cm
2, 51 psi)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-324
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0327, P0328 KS
P0327, P0328 KS
DTC LogicINFOID:0000000009462257
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 run it for at least 5 seconds at idle speed.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-324, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462258
1.CHECK KNOCK SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect knock sensor harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between knock sens or harness connector and ECM harness connector.
*1: Except for California
*2: For California
5. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detected condition Possible cause
P0327 KNOCK SEN/CIRC-B1
(Knock sensor 1 circuit low
bank 1 or single sensor) An excessively low voltage from the knock sen-
sor is sent to ECM. • Harness or connectors
(Knock sensor circuit is open or
shorted.)
• Knock sensor
P0328 KNOCK SEN/CIRC-B1
(Knock sensor 1 circuit high
bank 1 or single sensor) An excessively high voltage from the knock
sensor is sent to ECM.
+ −
Continuity
Knock sensor ECM
Connector Terminal Connector Terminal
F45 2 F14
*1
F91*28 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0327, P0328 KSEC-325
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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1. Check the continuity between knock sensor harness connector and ECM harness connector.
*1: Except for California
*2: For California
2. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK KNOCK SENSOR
Check the knock sensor. Refer to EC-325, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace knock sensor. Refer to EM-87, "Exploded View"
.
Component InspectionINFOID:0000000009462259
1.CHECK KNOCK SENSOR
1. Turn ignition switch OFF.
2. Disconnect knock sensor harness connector.
3. Check resistance between knock sensor terminals as per the following. NOTE:
It is necessary to use an ohmmeter which can measure more than 10 M Ω.
CAUTION:
Do not use any knock sensors th at have been dropped or physically damaged. Use only new ones.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace knock sensor. Refer to EM-87, "Exploded View"
.
+−
Continuity
Knock sensor ECM
Connector Terminal Connector Terminal
F45 1 F14
*1
F91*24 Existed
Knock sensor
Resistance
+-
Te r m i n a l s
1 2 Approx. 532 - 588 k Ω [at 20 °C (68 °F)]
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-326
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0335 CKP SENSOR (POS)
P0335 CKP SENSOR (POS)
DTC LogicINFOID:0000000009462260
DTC DETECTION LOGIC
NOTE:
If DTC P0335 is displayed with DTC P0643, first pe rform 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 10.5 V with igni-
tion switch ON.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds. If engine does not start, crank engine for at least 2 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-326, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462261
1.CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY
1. Disconnect crankshaft position (CKP ) sensor (POS) harness connector.
2. Turn ignition switch ON.
3. Check the voltage between CKP sensor (POS) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0335 CKP SEN/CIRCUIT
(Crankshaft position sensor
″ A ″ circuit) • The crankshaft position sensor (POS) signal
is not detected by the ECM during the first
few seconds of engine cranking.
• The proper pulse signal from the crankshaft position sensor (POS) is not sent to ECM
while the engine is running.
• The crankshaft position sensor (POS) signal is not in the normal pattern during engine run-
ning. • Harness or connectors
[Crankshaft position sensor (POS) cir-
cuit is open or shorted.]
• Crankshaft position sensor (POS)
• Signal plate
• Sensor power supply 2 circuit
+
−Voltag e
(Approx.)
CKP sensor (POS)
Connector Terminal F30 1 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0340 CMP SENSOR (PHASE)EC-329
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0340 CMP SENSOR (PHASE)
DTC LogicINFOID:0000000009462263
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 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
1. Start engine and let it idle for at least 5 seconds. If engine does not start, crank engine for at least 2 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-329, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-2
1. Maintaining engine speed at more than 800 rpm for at least 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-329, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462264
1.CHECK STARTING SYSTEM
Turn ignition switch to START position.
Does the engine turn over? Does the starter motor operate?
YES >> GO TO 2.
NO >> Check starting system (Refer to STR-12, "Work Flow (With GR8-1200 NI)"
or STR-16, "Work Flow
(Without GR8-1200 NI)".).
2.CHECK CAMSHAFT POSITION (CMP ) SENSOR (PHASE) POWER SUPPLY
1. Turn ignition switch OFF.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0340 CMP SEN/CIRC-B1
(Camshaft position sensor
″ A ″ circuit bank 1 or single
sensor) • The cylinder No. signal is not sent to ECM
for the first few seconds during engine
cranking.
• The cylinder No. signal is not sent to ECM during engine running.
• The cylinder No. signal is not in the nor- mal pattern during engine running. • Harness or connectors
(Camshaft position sensor circuit is open
or shorted)
• Camshaft position sensor
• Camshaft (Intake)
•Starter motor
• Starting system circuit
• Dead (Weak) battery
• Sensor power supply 2 circuit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM