2014 NISSAN TEANA lock

IDLE AIR VOLUME LEARNINGEC-179
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IDLE AIR VOLUME LEARNING
DescriptionINFOID:0000000009462138
Idle Air Volume Learning is a function of ECM to lear
n the idle air volume that keeps each engine idle speed
within the specific range. It must be per formed under any of the following conditions:
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
Work ProcedureINFOID:0000000009462139
1.PRECONDITIONING
Make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
• Battery voltage: More than 12.9 V (At idle)
• Engine coolant temperature: 70 - 100 °C (158 - 212 °F)
• Selector lever : P or N
• Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime running light systems, set lighting switch to the 1st position to
light only small lamps.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- With CONSULT Drive vehicle until “ATF TENP SEN” in “DATA MONITO R” mode of “CVT” system indicates less than 0.9 V.
- Without CONSULT Drive vehicle for 10 minutes.
Do you have CONSULT?
YES >> GO TO 2.
NO >> GO TO 3.
2.IDLE AIR VOLUME LEARNING
With CONSULT
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-177, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-178, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode of “ENGINE”.
5. Touch “START” and wait 20 seconds.
Is
“CMPLT” displayed on CONSULT screen?
YES >> GO TO 4.
NO >> GO TO 5.
3.IDLE AIR VOLUME LEARNING
Without CONSULT
NOTE:
• It is better to count the time accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-177, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-178, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quick ly five times within 5 seconds.
- Fully depress the accelerator pedal.
- Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0075 INTAKE VALVE TIMING CONTROLEC-221
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0075 INTAKE VALVE TIMING CONTROL
DTC LogicINFOID:0000000009462171
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. Start engine and let it idle for 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-221, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462172
1.CHECK INTAKE VALVE TIMING (IVT) CO NTROL SOLENOID VALVE POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect IVT control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check the voltage between intake valve timing control solenoid valve harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK IVT CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0075 INT/V TIM V/CIR-B1
(Intake valve control sole-
noid circuit bank 1) • ECM detects an abnormal voltage in the intake
valve timing control solenoid valve control circuit.
• ECM detects an abnormal voltage in the intake valve timing intermediate lock control solenoid
valve control circuit. • Harness or connectors
(Intake valve timing control solenoid
valve circuit is open or shorted.)
(Intake valve timing intermediate
lock control solenoid valve circuit is
open or shorted.)
• Intake valve timing control solenoid valve
• Intake valve timing intermediate lock
control solenoid valve
+
−Voltag e
IVT control solenoid valve
Connector Terminal F59 1 Ground Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-222
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0075 INTAKE VALVE TIMING CONTROL
3. Check the continuity between IVT control sol
enoid valve harness connector and IPDM E/R harness con-
nector.
4. Also check harness for short to ground.
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK IVT CONTROL SOLENOID VALVE GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between IVT control sol enoid valve harness connector and ECM harness connector.
*1: Except for California
*2: For California
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK IVT CONTROL SOLENOID VALVE
Check the IVT control solenoid valve. Refer to EC-223, "Component Inspection (IVT Control Solenoid Valve)"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace IVT control solenoid valve. Refer to EM-61, "Exploded View"
.
5.CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE POWER SUPPLY
1. Disconnect IVT intermediate lock c ontrol solenoid valve harness connector.
2. Turn ignition switch ON.
3. Check the voltage between IVT intermediate lock control solenoid valve harness connector and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
+ −
Continuity
IVT control solenoid valve IPDM E/R
Connector Terminal Connector Terminal F591F8359Existed
+ −
Continuity
IVT control solenoid valve ECM
Connector Terminal Connector Terminal
F59 2 E10
*1
E31*293 Existed
+
−Vo l ta g e
IVT intermediate lock control
solenoid valve
Connector Terminal F51 1 Ground Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0075 INTAKE VALVE TIMING CONTROLEC-223
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3. Check the continuity between IVT intermediate lo
ck control solenoid valve harness connector and IPDM
E/R harness connector.
4. Also check harness for short to ground.
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
7.CHECK IVT INTERMEDIATE LOCK CONT ROL SOLENOID VALVE GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between IVT intermediate lock control solenoid valve harness connector and ECM
harness connector.
*1: Except for California
*2: For California
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace error-detected parts.
8.CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE
Check the IVT intermediate lock control solenoid valve. Refer to EC-224, "Component Inspection (IVT Inter-
mediate Lock Control Solenoid Valve)".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace IVT intermediate lock control solenoid valve. Refer to EM-61, "Exploded View"
.
Component Inspection (IVT Control Solenoid Valve)INFOID:0000000009462173
1.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-I
1. Turn ignition switch OFF.
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Check resistance between intake valve timing control solenoid valve terminals as follows.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace intake valve timing control solenoid valve. Refer to EM-61, "Exploded View"
.
+−
Continuity
IVT intermediate lock con-
trol solenoid valve IPDM E/R
Connector Terminal Connector Terminal F51 1 F83 59 Existed
+ −
Continuity
IVT intermediate lock con-
trol solenoid valve ECM
Connector Terminal Connector Terminal
F51 2 F13
*1
F90*256 Existed
Terminals Resistance
1 and 2 7.0 - 7.5 Ω [at 20 °C (68 °F)]
1 or 2 and ground ∞
Ω
(Continuity should not exist)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-224
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0075 INTAKE VALVE TIMING CONTROL
2.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-II
1. Remove intake valve timing control solenoid valve. Refer to EM-61, "Exploded View"
.
2. Provide 12 V DC between intake valve timing control solenoid
valve terminals 1 and 2, and then interrupt it. Make sure that the
plunger moves as shown in the figure.
CAUTION:
Do not apply 12 V DC continuously for 5 seconds or more.
Doing so may result in damage to the coil in intake valve
timing control solenoid valve.
NOTE:
Always replace O-ring when intake valve timing control
solenoid valve is removed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace intake valve timing control solenoid valve. Refer to EM-61, "Exploded View"
.
Component Inspection (IVT Intermediate Lock Control Solenoid Valve)INFOID:0000000009462174
1.CHECK INTAKE VALVE TIMING INTERMEDIA TE LOCK CONTROL SOLENOID VALVE-I
1. Turn ignition switch OFF.
2. Disconnect intake valve timing intermediate lock control solenoid valve harness connector.
3. Check resistance between intake valve timing interm ediate lock control solenoid valve terminals as fol-
lows.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace intake valve timing intermediate lock control solenoid valve. Refer to EM-61, "Exploded
View".
2.CHECK INTAKE VALVE TIMING INTERMEDIATE LOCK CONTROL SOLENOID VALVE-II
1. Remove intake valve timing intermediate lock control solenoid valve. Refer to EM-61, "Exploded View"
.
2. Provide 12 V DC between intake valve timing intermediate lock control solenoid valve terminals 1 and 2, and then interrupt it.
Make sure that the plunger moves as shown in the figure.
CAUTION:
Do not apply 12 V DC continuously for 5 seconds or more.
Doing so may result in damage to the coil in intake valve
timing intermediate lock control solenoid valve.
NOTE:
Always replace O-ring when in take valve timing intermedi-
ate lock control solenoid valve is removed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace intake valve timing intermediate lock control solenoid valve. Refer to EM-61, "Exploded
View".
JMBIA2107ZZ
Terminals Resistance
1 and 2 7.0 - 7.5 Ω [at 20 °C (68 °F)]
1 or 2 and ground ∞
Ω
(Continuity should not exist)
JMBIA2107ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0441 EVAP CONTROL SYSTEMEC-337
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0441 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000009462269
DTC DETECTION LOGIC
NOTE:
If DTC P0441 is displayed with other DTC such as P2122, P2123, P2127, P2128 or P2138, first perform
trouble diagnosis for other DTC.
In this evaporative emission (EVAP) control system, pur ge flow occurs during non-closed throttle conditions.
Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP
canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP con-
trol system pressure sensor to intake manifold vacuum.
Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow
are adequate. If not, a malfunction is determined.
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.
Will CONSULT be used?
YES >> GO TO 2.
NO >> GO TO 5.
JSBIA0416GB
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0441 EVAP PURG FLOW/MON
(Evaporative emission sys-
tem incorrect purge flow) EVAP control system does not operate
properly, EVAP control system has a leak
between intake manifold and EVAP control
system pressure sensor. • EVAP canister purge volume control sole-
noid valve stuck closed
• EVAP control system pressure sensor and the circuit
• Loose, disconnected or improper connection of rubber tube
• Blocked rubber tube
• Cracked EVAP canister
• EVAP canister purge volume control sole- noid valve circuit
• Accelerator pedal position sensor
• Blocked purge port
• EVAP canister vent control valve
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EC-354
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0448 EVAP CANISTER VENT CONTROL VALVE
P0448 EVAP CANISTER VENT CONTROL VALVE
DTC LogicINFOID:0000000009462281
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
With CONSULT
1. Turn ignition switch ON and wait at least 5 seconds.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON and select “DATA MONITOR” mode of “ENGINE” using CONSULT.
4. Start engine and let it idle for at least 1 minute.
5. Repeat next procedures three times.
- Increase the engine speed up to 3,000 to 3,500 rpm and keep it for 2 minutes and 50 seconds to 3 min-
utes.
Never exceed 3 minutes.
- Fully released accelerator pedal and keep engine idle for about 5 seconds.
6. Repeat next procedure 20 times.
- Quickly increase the engine speed up to 4,000 to 4, 500 rpm or more and keep it for 25 to 30 seconds.
- Fully released accelerator pedal and keep engine idle for at least 35 seconds.
7. Check 1st trip DTC. With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-355, "Diagnosis Procedure".
NO >> INSPECTION END
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0448 VENT CONTROL VALVE
(Evaporative emission system
vent control circuit shorted) EVAP canister vent control valve remains
closed under specified driving conditions. • EVAP canister vent control valve
• EVAP control system pressure sensor and the circuit
• Blocked rubber tube to EVAP canister vent control valve
• EVAP canister is saturated with water
PBIB0972E
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EC-372
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0456 EVAP CONTROL SYSTEM
2. Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace with genuine NISSAN fuel filler cap.
2.CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened proper ly by rotating the cap clockwise.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Then retighten until reteaching sound is heard.
3.CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK FUEL TANK VACUUM RELIEF VALVE
Refer to EC-375, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace fuel filler cap with a genuine one.
5.CHECK FOR EVAP LEAK
Refer to EC-537, "Inspection"
.
Is there any leak in EVAP line?
YES >> Repair or replace.
NO >> GO TO 6.
6.CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly.
Refer to FL-17, "Exploded View"
.
• EVAP canister vent control valve. Refer to FL-17, "Removal and Installation"
.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace EVAP canister vent control valve and O-ring. Refer to FL-17, "Removal and
Installation".
7.CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
SEF915U
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM