crank NISSAN TEANA 2014 Workshop Manual

EC-182
< BASIC INSPECTION >[QR25DE]
FUEL PRESSURE
FUEL PRESSURE
Work ProcedureINFOID:0000000009462142
FUEL PRESSURE RELEASE
1.FUEL PRESSURE RELEASE
With CONSULT
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEA SE” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
Without CONSULT
1. Remove fuel pump fuse located in IPDM E/R. For the fuse number, refer to EC-117, "Wiring Diagram"
. For
the fuse arrangement, refer to PG-72, "Fuse, Connector and Terminal Arrangement"
.
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
>> END
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pr essure from fuel line to eliminate danger.
NOTE:
• Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because th is models do not have fuel return system.
• Use Fuel Pressure Gauge Kit [SST: (J-44321)] to check fuel pressure.
1.FUEL PRESSURE CHECK
1. Release fuel pressure to zero.
2. Connect fuel tube adapter [SST:KV10120000] (B) to quick con-
nector.
3. Turn ignition switch ON and check for fuel leakage.
4. Start engine and check for fuel leakage.
5. Read the indication of fuel pressure gauge.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK FUEL HOSES AND FUEL TUBES
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 error-detected parts.
A : Fuel pressure gauge
C : Fuel feed hose
: Vehicle front
At idling : Approximately 350 kPa (3.57 kg/cm2, 51 psi)
ALBIA0811ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0011 IVT CONTROLEC-209
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0011 IVT CONTROL
DTC LogicINFOID:0000000009462159
DTC DETECTION LOGIC
NOTE:
If DTC P0011 is displayed with DTC P0075, first perform the trouble diagnosis for EC-221, "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 pr ocedure, confirm that battery voltage is between 11 V and 16 V at
idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE-1
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. Maintain the following conditions for at least 6 c onsecutive seconds. Hold the accelerator pedal as steady
as possible.
4. Stop vehicle with engine running and let engine idle for 10 seconds.
5. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-210, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
1. Maintain the following conditions for at least 20 consecutive seconds.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0011 INT/V TIM CONT-B1
( ″ A ″ Camshaft position - tim-
ing over-advanced or system
performance bank 1) There is a gap between angle of target
and phase-control angle degree. • Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE)
• Intake valve control solenoid valve
• Accumulation of debris to the signal pick-up
portion of the camshaft
• Timing chain installation
• Foreign matter caught in the oil groove for in-
take valve timing control
ENG SPEED 1,200 - 2,000 rpm
COOLAN TEMP/S More than 60 °C (140 °F)
Selector lever P or N position
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-210
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0011 IVT CONTROL
CAUTION:
Always drive at a safe speed.
2. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-210, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462160
1.CHECK OIL PRESSURE WARNING LAMP
1. Start engine.
2. Check oil pressure warning lamp and confirm it is not illumi- nated.
Is oil pressure warning lamp illuminated?
YES >> Check the engine oil level. Refer to LU-9, "Inspection".
NO >> GO TO 2.
2.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Check the intake valve timing control solenoid valve. Refer to EC-211, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace intake valve timing control solenoid valve. Refer to EM-61, "Exploded View"
.
3.CHECK CRANKSHAFT POSITION SENSOR (POS)
Check the crankshaft position sensor (POS). Refer to EC-328, "Component Inspection (Crankshaft Position
sensor)".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace crankshaft position sensor (POS). Refer to EM-87, "Exploded View"
.
4.CHECK CAMSHAFT POSITION SENSOR (PHASE)
Check the camshaft position sensor (PHASE). Refer to EC-331, "Component Inspection (Camshaft position
sensor)".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace camshaft position sensor (PHASE). Refer to EM-47, "Exploded View"
.
5.CHECK CAMSHAFT (INT)
Check the following.
ENG SPEED 1,200 - 3,175 rpm (A cons tant rotation is maintained.)
COOLAN TEMP/S More than 64 °C (148 °F)
Selector lever D position
Driving location Driving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
PBIA8559J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-212
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0014 EVT CONTROL
P0014 EVT CONTROL
DTC LogicINFOID:0000000009462162
DTC DETECTION LOGIC
NOTE:
• If DTC P0014 is displayed with DTC P0078, first perform trouble diagnosis for DTC P0078. Refer to
EC-225, "DTC Logic"
.
• If DTC P0014 is displayed with P1078, first pe rform trouble diagnosis for P1078. Refer to EC-413,
"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, confi rm that battery voltage is between 10 V and 16 V at
idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
1. Turn ignition switch ON and select “DATA MONITOR” mode of “ENGINE” using CONSULT.
2. Start engine and warm it up to the normal operating temperature.
3. Maintain the following conditions for at least 6 c onsecutive seconds. Hold the accelerator pedal as steady
as possible.
4. Let engine idle for 10 seconds.
5. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-213, "Diagnosis Procedure"
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0014 EXH/V TIM CONT-B1
( ″ B ″ Camshaft position - tim-
ing over-advanced or system
performance bank 1) There is a gap between angle of target and
phase-control angle degree. • Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE)
• Exhaust valve timing control position sen- sor
• Exhaust valve control solenoid valve
• Accumulation of debris to the signal pick- up portion of the camshaft
• Timing chain installation
• Foreign matter caught in the oil groove for exhaust valve timing control
ENG SPEED 1,200 - 2,000 rp m (A constant rotation is maintained.)
COOLAN TEMP/S More than 60 °C (140 °F)
Selector lever P or N position
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P0014 EVT CONTROLEC-213
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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1. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
2. Maintain the following conditions for at least 20 consecutive seconds.
CAUTION:
Always drive at a safe speed.
3. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-213, "Diagnosis Procedure"
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462163
1.CHECK OIL PRESSURE WARNING LAMP
1. Start engine.
2. Check oil pressure warning lamp and confirm it is not illumi- nated.
Is oil pressure warning lamp illuminated?
YES >> Check the engine oil level. Refer to LU-9, "Inspection".
NO >> GO TO 2.
2.CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE
Check the exhaust valve timing control solenoid valve. Refer to EC-211, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace exhaust valve timing control solenoid valve. Refer to EM-61, "Exploded View"
.
3.CHECK CRANKSHAFT POSITION SENSOR (POS)
Check the crankshaft position sensor (POS). Refer to EC-328, "Component Inspection (Crankshaft Position
sensor)".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace crankshaft position sensor (POS). Refer to EM-87, "Exploded View"
.
4.CHECK EXHAUST VALVE TIMING CONTROL POSITION SENSOR
Check the exhaust valve timing control position sensor. Refer to EC-331, "Component Inspection (Camshaft
position sensor)".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace exhaust valve timing control position sensor. Refer to EM-47, "Exploded View"
.
5.CHECK CAMSHAFT (EXH)
Check the following.
ENG SPEED 1,700 - 2,950 rpm (A constant rotation is maintained.)
COOLAN TEMP/S More than 70 °C (158 °F)
Selector lever D position
Driving location uphill Driving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
PBIA8559J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-294
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0171 FUEL INJECTION SYSTEM FUNCTION
P0171 FUEL INJECTIO
N SYSTEM FUNCTION
DTC LogicINFOID:0000000009462234
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio f eedback signal from the A/F sensors 1. The ECM calcu-
lates the necessary compensation to correct the of fset between the actual and the theoretical ratios.
In case the amount of the compensation value is extrem ely large (The actual mixture ratio is too lean.), the
ECM judges the condition as the fuel injection system malfunction and lights up the MIL (2 trip 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
1. Clear the mixture ratio self-learning value. Refer to EC-181, "Work Procedure"
.
2. Start engine.
Is it difficult to start engine?
YES >> GO TO 3.
NO >> GO TO 4.
3.RESTART ENGINE
If it is difficult to start engine, the f uel injection system has a malfunction, too.
Crank engine while depressing accelerator pedal.
NOTE:
When depressing accelerator pedal three-fourths (3/4 ) or more, the control system does not start the
engine. Do not depress accelerator pedal too much.
Does engine start?
YES >> Proceed to EC-295, "Diagnosis Procedure".
NO >> Check exhaust and intake air leak visually.
4.PERFORM DTC CONFIRMATION PROCEDURE-2
1. Start engine and let it idle for at least 5 minutes.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
Sensor Input signal to ECM ECM function Actuator
A/F sensor 1 Density of oxygen in exhaust gas
(Mixture ratio feedback signal) Fuel injection control Fuel injector
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0171 FUEL SYS-LEAN-B1
(System too lean bank 1) • Fuel injection system does not operate properly.
• The amount of mixture ratio compensation is too
large. (The mixture ratio is too lean.) • Intake air leaks
• A/F sensor 1
• Fuel injector
• Exhaust gas leaks
• Incorrect fuel pressure
• Lack of fuel
• Mass air flow sensor
• Incorrect PCV hose connection
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0171 FUEL INJECTION SYSTEM FUNCTIONEC-297
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Perform trouble diagnosis for “FUEL INJECTOR”, refer to EC-505, "Component Function Check"
.
8.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Confirm that the engine is cooled down and t here are no fire hazards near the vehicle.
3. Disconnect all fuel injector harness connectors.
4. Remove fuel tube assembly. Refer to EM-41, "Removal and Installation"
.
Keep fuel hose and all fuel injectors connected to fuel tube.
5. Disconnect all ignition coil harness connectors.
6. Prepare pans or saucers under each fuel injector.
7. Crank engine for about 3 seconds.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent
Incident".
NO >> Replace fuel injectors from which fuel does not spray
out. Always replace O-ring with new ones. Refer to EM-
41, "Removal and Installation".
Clicking noise should be heard.
PBIB3332E
Fuel should be sprayed evenly
for each fuel injector.
PBIA9666J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-298
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0172 FUEL INJECTION SYSTEM FUNCTION
P0172 FUEL INJECTIO
N SYSTEM FUNCTION
DTC LogicINFOID:0000000009462236
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio f eedback signal from the A/F sensors 1. The ECM calcu-
lates the necessary compensation to correct the of fset between the actual and the theoretical ratios.
In case the amount of the compensation value is extrem ely large (The actual mixture ratio is too rich.), the
ECM judges the condition as the fuel injection system malfunction and lights up the MIL (2 trip 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
1. Clear the mixture ratio self-learning value. Refer to EC-181, "Work Procedure"
.
2. Start engine.
Is it difficult to start engine?
YES >> GO TO 3.
NO >> GO TO 4.
3.RESTART ENGINE
If it is difficult to start engine, the f uel injection system has a malfunction, too.
Crank engine while depressing accelerator pedal.
NOTE:
When depressing accelerator pedal three-fourths (3/4 ) or more, the control system does not start the
engine. Do not depress accelerator pedal too much.
Does engine start?
YES >> Proceed to EC-299, "Diagnosis Procedure".
NO >> Check exhaust and intake air leak visually.
4.PERFORM DTC CONFIRMATION PROCEDURE-2
1. Start engine and let it idle for at least 5 minutes.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-299, "Diagnosis Procedure".
NO >> GO TO 5.
Sensor Input signal to ECM ECM function Actuator
A/F sensor 1 Density of oxygen in exhaust gas
(Mixture ratio feedback signal) Fuel injection control Fuel injector
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0172 FUEL SYS-RICH-B1
(System too rich bank 1) • Fuel injection system does not operate properly.
• The amount of mixture ratio compensation is too
large. (The mixture ratio is too rich.) • A/F sensor 1
• Fuel injector
• Exhaust gas leaks
• Incorrect fuel pressure
• Mass air flow sensor
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0172 FUEL INJECTION SYSTEM FUNCTIONEC-301
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Perform trouble diagnosis for “FUEL INJECTOR”, refer to EC-505, "Component Function Check"
.
8.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Confirm that the engine is cooled down and t here are no fire hazards near the vehicle.
3. Disconnect all fuel injector harness connectors.
4. Remove fuel tube assembly. Refer to EM-41, "Removal and Installation"
.
Keep fuel hose and all fuel injectors connected to fuel tube.
5. Disconnect all ignition coil harness connectors.
6. Prepare pans or saucers under each fuel injector.
7. Crank engine for about 3 seconds.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent
Incident".
NO >> Replace fuel injectors from which fuel does not spray
out. Always replace O-ring with new ones. Refer to EM-
41, "Removal and Installation".
Clicking noise should be heard.
PBIB3332E
Fuel should be sprayed evenly
for each fuel injector.
PBIA9666J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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