2014 NISSAN TEANA Service Manual

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Page 1777 of 4801

NISSAN TEANA 2014 Service Manual
P0139, P0159 HO2S2EC-777
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition s

P0139, P0159 HO2S2EC-777
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2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
6. Let engine idle for 1 minute.
7. Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK-II
Check the voltage between ECM harness connector terminals under the following conditions.
.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 3.
3.PERFORM COMPONENT FUNCTION CHECK-III
Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-777, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462641
1.CLEAR MIXTURE RATIO SELF-LEARNING VALUE
1. Clear the mixture ratio self-learning value. Refer to EC-685, "Work Procedure"
.
2. Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0171, P0172, P0174 or P 0175 detected? Is it difficult to start engine?
YES >> Perform trouble diagnosis for DTC P0171, P0174 or P0172, P0175. Refer to EC-787, "DTC Logic"
or EC-791, "DTC Logic".
NO >> GO TO 2.
DTC ECM
Condition Voltage
Connec-
tor +–
Te r m i n a l Te r m i n a l
P0139 F79 57
59Revving up to 4,000 rpm under no
load at least 10 times A change of voltage should be more
than 0.96 V for 1 second during this
procedure.
P0159 58
DTC ECM
Condition Voltage
Connec-
tor +–
Te r m i n a l Te r m i n a l
P0139 F79 57
59 Keeping engine at idle for 10 minutes A change of voltage should be more
than 0.96 V for 1 second during this
procedure.
P0159 58
DTC ECM
Condition Voltage
Connec-
tor +–
Terminal Terminal
P0139 F79 57
59Coasting from 80 km/h (50 MPH) in
D position A change of voltage should be more
than 0.96 V for 1 second during this
procedure.
P0159 58
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1778 of 4801

NISSAN TEANA 2014 Service Manual
EC-778
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0139, P0159 HO2S2
2.CHECK HO2S2 GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Disconnect ECM harne

Page 1779 of 4801

NISSAN TEANA 2014 Service Manual
P0139, P0159 HO2S2EC-779
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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Will CONSULT be used?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK HEATED OXYGEN SENSOR 2
With CONSULT
1. Turn

P0139, P0159 HO2S2EC-779
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Will CONSULT be used?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK HEATED OXYGEN SENSOR 2
With CONSULT
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT.
2. Start engine and warm it up to the normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Select “FUEL INJECTION” in “A CTIVE TEST” mode, and select “HO2S2 (B1)/(B2)” as the monitor item
with CONSULT.
7. Check “HO2S2 (B1)/(B2)” at idle speed when adjusting “FUEL INJECTION” to ± 25%.
“HO2S2 (B1)/(B2)” should be above 0.68 V at least once when the “FUEL INJECTION” is + 25%.
“HO2S2 (B1)/(B2)” should be below 0.18 V at least once when the “FUEL INJECTION” is − 25%.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace malfunctioning heated oxygen sensor 2. Refer to EM-152, "Removal and Installation
(LH)" or EM-153, "Removal and Installation (RH)".
3.CHECK HEATED OXYGEN SENSOR 2-I
Without CONSULT
1. Start engine and warm it up to the normal operating temperature.
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 at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 4.
4.CHECK HEATED OXYGEN SENSOR 2-II
Check the voltage between ECM harness connector terminals under the following conditions.
PBIB3458E
ECM
Condition Voltage
Connector +–
Terminal Terminal
F79 57
59Revving up to 4,000 rpm under no load at
least 10 times The voltage should be above 0.68 V at
least once during this procedure.
The voltage should be below 0.18 V at
least once during this procedure.
58
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1780 of 4801

NISSAN TEANA 2014 Service Manual
EC-780
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0139, P0159 HO2S2
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-III
Check the voltage between ECM har

Page 1781 of 4801

NISSAN TEANA 2014 Service Manual
P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D A/F SENSOR 1
EC-781
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P014C, P014D, P014E, P014F, P015A,
P015B, P015C, P015D

P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D A/F SENSOR 1
EC-781
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P014C, P014D, P014E, P014F, P015A,
P015B, P015C, P015D A/F SENSOR
1
DTC LogicINFOID:0000000009462643
DTC DETECTION LOGIC
To judge malfunctions, this diagnosis measures response time of the A/F signal computed by ECM from the A/
F sensor 1 signal. The time is compensated by engi ne operating (speed and load), fuel feedback control con-
stant, and the A/F sensor 1 temperature index. Judgment is based on whether the compensated time (the A/F
signal cycling time index) is inordinately long or not.
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 11 V at idle.
Do you have CONSULT?
YES >> GO TO 2.
NO >> GO TO 6.
2.PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1minute under no load.
6. Let engine idle for 1 minute.
7. Increase the engine speed up to about 3,600 rpm and keep it for 10 seconds.
8. Fully release accelerator pedal and then let engine idle for about 1 minute.
9. Check the items status of “DATA MONITOR” as follows.
NOTE:
If “PRSNT” changed to “ABSNT”, refer to EC-701, "Component Function Check"
.
DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P014C Air fuel ratio (A/F) sensor 1 (bank 1) circuit slow re-
sponse
• The response time of a A/F sensor 1 signal de-lays more than the specified time computed by
ECM. • Harness or connectors
(The A/F sensor 1 circuit is open or
shorted.)
• A/F sensor 1
P014D
P015A Air fuel ratio (A/F) sensor 1 (bank 1) circuit delayed re-
sponse
P015B
P014E Air fuel ratio (A/F) sensor 1 (bank 2) circuit slow re-
sponse
P014F
P015C Air fuel ratio (A/F) sensor 1 (bank 2) circuit delayed re-
sponse
P015D
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1782 of 4801

NISSAN TEANA 2014 Service Manual
EC-782
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P014C, P014D, P014E, P0
14F, P015A, P015B, P015C, P015D A/F SENSOR 1
Is “PRSNT” displayed on CONSULT screen?
YES >> GO TO 4.
NO >> GO TO 3.
3.PERFORM DTC

Page 1783 of 4801

NISSAN TEANA 2014 Service Manual
P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D A/F SENSOR 1
EC-783
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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7.DETECT MALFUNCTIONING PART
Check the following.
• I

Page 1784 of 4801

NISSAN TEANA 2014 Service Manual
EC-784
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P014C, P014D, P014E, P0
14F, P015A, P015B, P015C, P015D A/F SENSOR 1
4.CLEAR THE MIXTURE RATIO SELF-LEARNING VALUE
1. Clear the mixture ratio self-learning va

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