2014 NISSAN TEANA ignition

EC-462
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P2004 INTAKE MANIFOLD
RUNNER CONTROL VALVE
P2004 INTAKE MANIFOLD RUNNER CONTROL VALVE
DTC LogicINFOID:0000000009462396
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
• Before performing the following procedure, confirm th at battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −12 °C (10 °F)
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT.
3. Make sure that “COOLAN TEMP/S” indicates between −12 °C (10 °F) to 59 °C (138 °F).
If not, cool engine down or warm engine up until “COOLAN TEMP/S” indicates between −12 °C (10 °F) to
59 °C (138 °F). Then go to the following steps.
4. Fully release accelerator pedal and wait at least 10 seconds.
5. Depress accelerator pedal and wait at least 10 seconds.
6. Check 1st trip DTC.
With GST
Following the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-462, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462397
1.CHECK INTAKE MANIFOLD RUNNER CO NTROL VALVE MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector.
*1: Except for California
*2: For California
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P2004 TUMBLE CONT/V
(Intake manifold runner control
stuck open bank 1) The target angle of intake manifold runner
control valve controlled by ECM and the in-
put signal from intake manifold runner con-
trol valve position sensor is not in the normal
range. • Harness or connectors
(Intake manifold runner control valve
motor circuit is open or shorted.)
• Intake manifold runner control valve motor
• Intake manifold runner control valve is
stuck
ECM
Vo l ta g e
+-
Connector Terminal Connector Terminal
F13
*1
F90*250 E10*1
E31*2128 Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P2004 INTAKE MANIFOLD RUNNER CONTROL VALVEEC-463
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect IPDM E/R harness connector.
4. Check the continuity between ECM harness connector and IPDM E/R harness connector.
*1: Except for California
*2: For California
5. 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 INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR OUTPUT SIGNAL CIRCUIT
1. Disconnect intake manifold runner control valve motor harness connector.
2. Check the continuity between intake manifold runner control valve motor harness connector and ECM harness connector.
*1: Except for California
*2: For California
3. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR
Check the intake manifold runner control valve motor. Refer to EC-463, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace intake manifold assembly. Refer to EM-30, "Removal and Installation"
.
Component InspectionINFOID:0000000009462398
1.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE
With CONSULT
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT.
+ −
Continuity
ECM IPDM E/R
Connector Terminal Connector Terminal
F13
*1
F90*250 F83 59 Existed
+ −
Continuity
Intake manifold runner con-
trol valve motor ECM
Connector Terminal Connector Terminal
F41 1
F13
*1
F90*2
49 Not existed
51 Existed
2 49 Existed
51 Not existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-464
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P2004 INTAKE MANIFOLD
RUNNER CONTROL VALVE
3. Make sure that “COOLAN TEMP/S” indicates between −12 °C (10 °F) to 59 °C (138 °F).
If not, cool engine down or warm engine up until “COOLAN TEMP/S” indicates between −12 °C (10 °F) to
59 °C (138 °F). Then go to the following steps.
4. Fully release accelerator pedal and make sure that “TUMBLE POS SEN” indicates between 2.8 V to 4.1
V.
5. Depress accelerator pedal and make sure that “TUMBLE POS SEN” indicates between 0.2 V to 1.4 V.
6. Check 1st trip DTC.
With GST
Following the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Replace intake manifold assembly. Refer to EM-30, "Removal and Installation".
NO >> GO TO 2.
2.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR
1. Turn ignition switch OFF.
2. Disconnect intake manifold runner control valve motor harness connector.
3. Check the resistance between intake manifold runner control valve motor terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace intake manifold assembly. Refer to EM-30, "Removal and Installation"
.
Intake manifold runner control valve
motor Resistance
(Approx.)
+ −
Te r m i n a l s
1 2 3 - 8 Ω [at 25 °C (77 °F)]
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P2014, P2016, P2017, P2018 INTAKE MANIFOLD RUNNER CONTROL VALVE
POSITION SENSOR
EC-465
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P2014, P2016, P2017, P2018 INTAKE
MANIFOLD RUNNER CONTROL
VALVE POSITION SENSOR
DTC LogicINFOID:0000000009462399
DTC DETECTION LOGIC
NOTE:
If DTC P2014, P2016, P2017 or P2018 is displayed with DTC P0643, first perform the trouble diagnosis
for DTC P0643. Refer to EC-407, "DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always perform the following before conduct-
ing 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 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-465, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462400
1.CHECK INTAKE MANIFOLD RUNNER CONTROL VA LVE POSITION SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect intake valve manifold runner control valve position sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between intake valve manifold r unner control valve position sensor harness connector.
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P2014 IN/MANIFOLD RUNNER POS SEN B1
(Intake manifold runner position sensor/
switch circuit bank 1) An excessively low voltage from the sen-
sor is sent to ECM. • Harness or connectors
(Intake manifold runner control
position sensor circuit is short-
ed.)
• Intake manifold runner control position sensor
P2016
IN/MANIFOLD RUNNER POS SEN B1
(Intake manifold runner position sensor/
switch circuit low bank 1)
P2017 IN/MANIFOLD RUNNER POS SEN B1
(Intake manifold runner position sensor/
switch circuit high bank 1) An excessively high voltage from the sen-
sor is sent to ECM.
P2018 IN/MANIFOLD RUNNER POS SEN B1
(Intake manifold runner position sensor/
switch circuit intermittent bank 1)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-466
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P2014, P2016, P2017, P2
018 INTAKE MANIFOLD RUNNER CONTROL VALVE
POSITION SENSOR
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK INTAKE MANIFOLD RUNNER CONTROL VA LVE POSITION SENSOR POWER SUPPLY CIR-
CUIT
Check the voltage between intake valve manifold runner control valve position sensor harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Perform the trouble diagnosis for power supply circuit.
3.CHECK ECM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity betw een ECM harness connector and ground.
*1: Except for California
*2: For California
4. Also check harness for short to power.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Repair or replace error-detected parts.
4.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE POSITION SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between intake manifold r unner control valve position sensor harness connector and
ECM harness connector.
Intake manifold runner control valve position sensor
Vol tag e
(Approx.)
Connector +-
Terminal
F52 1 3 5 V
+
-Voltag e
(Approx.)
Intake manifold runner control valve
position sensor
Connector Terminal F52 1 Ground 5 V
+ -Continuity
ECM
Connector Terminal
F14
*1
F91*2
12
Ground Existed
16
F13
*1
F90*252
E10
*1
E31*2128
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-468
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P2096, P2097 A/F SENSOR 1
P2096, P2097 A/F SENSOR 1
DTC LogicINFOID:0000000009462401
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 least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Clear the mixture ratio self-learning value. Refer to EC-181, "Work Procedure"
.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for 1 minute under no load.
4. Let engine idle for 1 minute.
5. Keep engine speed between 2,500 and 3,000 rpm for 20 minutes.
6. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-468, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462402
1.CHECK HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect A/F sensor 1 harness connector.
3. Check harness connector for water.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness connector.
2.RETIGHTEN A/F SENSOR 1 AND HEATED OXYGEN SENSOR 2
Loosen and retighten the A/F sensor 1 and heated oxygen sensor 2. Refer to EM-33, "Exploded View"
, EX-5,
"Exploded View".
>> GO TO 3.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible Cause
P2096 POST CAT FUEL TRIM SYS B1
(Post catalyst fuel trim system
too lean bank 1) The output voltage computed by ECM from the
A/F sensor 1 signal is shifts to the lean side for a
specified period. • A/F sensor 1
• A/F sensor 1 heater
• Heated oxygen sensor 2
• Fuel pressure
• Fuel injector
• Intake air leaks
• Exhaust gas leaks
P2097
POST CAT FUEL TRIM SYS B1
(Post catalyst fuel trim system
too rich bank 1) The A/F signal computed by ECM from the A/F
sensor 1 signal is shifts to the rich side for a spec-
ified period.
Water should not exit.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P2096, P2097 A/F SENSOR 1EC-469
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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3.CHECK FOR EXHAUST GAS LEAK
1. Start engine and run it at idle.
2. Listen for an exhaust gas leak before the three way catalyst 2.
Is exhaust gas leak detected?
YES >> Repair or replace malfunctioning parts.
NO >> GO TO 4.
4.CHECK FOR INTAKE AIR LEAK
1. Reconnect A/F sensor 1 harness connector.
2. Start engine and run it at idle.
3. Listen for an intake air leak after the mass air flow sensor.
Is intake air leak detected?
YES >> Repair or replace malfunctioning parts.
NO >> GO TO 5.
5.CLEAR THE MIXTURE RATIO SELF-LEARNING VALUE
1. Clear the mixture ratio self-learning value. Refer to EC-181, "Work Procedure"
.
2. Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0171 or P0172 detected? Is it difficult to start engine?
YES >> Perform trouble diagnosis for DTC P0171 or P0172. Refer to EC-294, "DTC Logic" or EC-298,
"DTC Logic".
NO >> GO TO 6.
6.CHECK A/F SENSOR 1 POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect A/F sensor 1 harness connector.
3. Turn ignition switch ON.
4. Check the voltage between A/F sensor 1 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.CHECK A/F SENSOR 1 POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between A/F sensor 1 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.
8.CHECK A/F SENSOR 1 IN PUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
+
- Voltage
A/F sensor 1
Connector Terminal F24 4 Ground Battery voltage
+ −
Continuity
A/F sensor 1 IPDM E/R
Connector Terminal Connector Terminal F244F8352Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P2096, P2097 A/F SENSOR 1EC-471
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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• Discard any sensor which has been dropped from a he
ight of more than 0.5 m (19.7 in) onto a hard
surface such as a concrete floor; use a new one.
• Before installing new sensor, clean exhaust syst em threads using Oxygen Sensor Thread Cleaner
[commercial service tool (J-43897-18 or J-43897-12)] an d approved Anti-seize Lubricant (commercial
service tool).
Do you have CONSULT?
YES >> GO TO 13.
NO >> GO TO 14.
13.CONFIRM A/F ADJUSTMENT DATA
With CONSULT
1. Turn ignition switch ON.
2. Select “A/F ADJ-B1” in “DATA MONI TOR” mode of “ENGINE” using CONSULT.
3. Make sure that “0.000” is displayed on CONSULT screen.
Is
“0.000” displayed?
YES >> INSPECTION END
NO >> GO TO 14.
14.CLEAR THE MIXTURE RATIO SELF-LEARNING VALUE
Clear the mixture ratio self-learning value. Refer to EC-181, "Work Procedure"
.
Do you have CONSULT?
YES >> GO TO 15.
NO >> INSPECTION END
15.CONFIRM A/F ADJUSTMENT DATA
With CONSULT
1. Turn ignition switch ON.
2. Select “A/F ADJ-B1” in “DATA MONI TOR” mode of “ENGINE” using CONSULT.
3. Make sure that “0.000” is displayed on CONSULT screen.
>> INSPECTION END
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM