2008 NISSAN TEANA sensor

P0133, P0153 A/F SENSOR 1
EC-177
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
YES >> GO TO 11.
NO >> Replace mass air flow sensor.
11 .CHECK PCV VALVE
Refer to EC-347, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 12.
NO >> Repair or replace PCV valve.
12.CHECK INTERMITTENT INCIDENT
Perform GI-35, "
Intermittent Incident".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Repair or replace malfunctioning part.
13.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1.
CAUTION:
 Discard any A/F sensor which has been dropped from a height 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 A/F sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END

EC-178
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0137, P0157 HO2S2
P0137, P0157 HO2S2
DescriptionINFOID:0000000003856577
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the air fuel ratio (A/F) sensor 1
are shifted, the air-fuel ratio is controlled to stoichiometric, by the sig-
nal from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1 V in richer conditions to 0 V in leaner con-
ditions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
DTC LogicINFOID:0000000003856578
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time
between rich and lean than the air fuel ratio (A/F) sensor 1. The oxy-
gen storage capacity of the three way catalyst (manifold) causes the
longer switching time. To judge the malfunctions of heated oxygen
sensor 2, ECM monitors whether the maximum voltage of the sensor
is sufficiently high during various driving conditions such as fuel-cut.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Will CONSULT-III be used?
Will CONSULT-III be used?
YES >> GO TO 2.
NO >> GO TO 5.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
For better results, perform “DTC WORK SUPPORT” at a temperature of 0 to 30 °C (32 to 86 °F).
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
SEF327R
SEF259VA
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0137Heated oxygen sensor 2
(bank 1) circuit low volt-
age
The maximum voltage from the sensor does not
reach the specified voltage. Harness or connectors
(The sensor circuit is open or shorted)
 Heated oxygen sensor 2
 Fuel pressure
 Fuel injector
 Intake air leaks P0157Heated oxygen sensor 2
(bank 2) circuit low volt-
age

P0137, P0157 HO2S2
EC-179
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
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. Check that “COOLAN TEMP/S” indicates more than 70°C (158°F).
If not, warm up engine and go to next step when “COOLAN TEMP/S” indication reaches 70°C (158°F).
7. Open engine hood.
8. Select “HO2S2 (B1) P1147” (for DTC P0137) or “HO2S2 (B2) P1167” (for DTC P0157) of “HO2S2” in
“DTC WORK SUPPORT” mode with CONSULT-III.
9. Follow the instruction of CONSULT-III.
NOTE:
It will take at most 10 minutes until “COMPLETED” is displayed.
10. Touch “SELF-DIAG RESULTS”.
Which is displayed on CONSULT-III screen?
OK >> INSPECTION END
NG >> Go to EC-180, "
Diagnosis Procedure".
CAN NOT BE DIAGNOSED>>GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE AGAIN
1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
2. Perform DTC confirmation procedure again.
>> GO TO 3.
5.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-179, "
Component Function Check".
NOTE:
Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this
check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-180, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000003856579
1.PERFORM COMPONENT FUNCTION CHECK-I
Without CONSULT-III
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 2.
DTCECM
Condition Voltage
Connec-
tor+–
Te r m i n a l Te r m i n a l
P0137
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Revving up to 4,000 rpm under no
load at least 10 timesThe voltage should be above 0.68 V
at least once during this procedure.
P015734
[HO2S2 (bank 2)
signal]

EC-180
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0137, P0157 HO2S2
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 >> Go to EC-180, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003856580
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground Inspection in GI-37, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CLEAR MIXTURE RATIO SELF-LEARNING VALUE
1. Clear the mixture ratio self-learning value. Refer to EC-18, "
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement".
2. Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0171 or P0174 detected? Is it difficult to start engine?
YES >> Perform trouble diagnosis for DTC P0171 or P0174. Refer to EC-198, "DTC Logic".
NO >> GO TO 3.
3.CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Disconnect ECM harness connector.
DTCECM
Condition Voltage
Connec-
tor+–
Terminal Terminal
P0137
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Keeping engine at idle for 10 min-
utesThe voltage should be above 0.68 V
at least once during this procedure.
P015734
[HO2S2 (bank 2)
signal]
DTCECM
Condition Voltage
Connec-
tor+–
Terminal Terminal
P0137
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Coasting from 80 km/h (50 MPH) in
D positionThe voltage should be above 0.68 V
at least once during this procedure.
P015734
[HO2S2 (bank 2)
signal]

P0137, P0157 HO2S2
EC-181
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
4. Check the continuity between heated oxygen sensor 2 (HO2S2) harness connector and ECM harness
connector.
5. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between HO2S2 harness connector and ECM harness connector.
2. Check the continuity between HO2S2 harness connector or ECM harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK HEATED OXYGEN SENSOR 2
Refer to EC-182, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2.
CAUTION:
 Discard any heated oxygen sensor which has been dropped from a height 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 oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
7.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
DTCHO2S2 ECM
Continuity
Bank Connector Terminal Connector Terminal
P0137 1 F70 1
F8 35 Existed
P0157 2 F71 1
DTCHO2S2 ECM
Continuity
Bank Connector Terminal Connector Terminal
P0137 1 F70 4
F833
Existed
P0157 2 F71 4 34
DTCHO2S2 ECM
Ground Continuity
Bank Connector Terminal Connector Terminal
P0137 1 F70 4
F833
Ground Not existed
P0157 2 F71 4 34

EC-182
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0137, P0157 HO2S2
Component Inspection
INFOID:0000000003856581
1.INSPECTION START
Will CONSULT-III be used?
Will CONSULT-III be used?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK HEATED OXYGEN SENSOR 2
With CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
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 “ACTIVE TEST” mode, and select “HO2S2 (B1)/(B2)” as the monitor item
with CONSULT-III.
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 >> GO TO 6.
3.CHECK HEATED OXYGEN SENSOR 2-I
Without CONSULT-III
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
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Revving up to 4,000 rpm under no load at
least 10 timesThe 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. 34
[HO2S2 (bank 2)
signal]

P0137, P0157 HO2S2
EC-183
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-III
Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 6.
6.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2.
CAUTION:
 Discard any heated oxygen sensor which has been dropped from a height 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 oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
ECM
Condition Voltage
Connector+–
Terminal Terminal
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Keeping engine at idle for 10 minutesThe 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. 34
[HO2S2 (bank 2)
signal]
ECM
Condition Voltage
Connector+–
Terminal Terminal
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Coasting from 80 km/h (50 MPH) in D po-
sitionThe 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. 34
[HO2S2 (bank 2)
signal]

EC-184
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0138, P0158 HO2S2
P0138, P0158 HO2S2
DescriptionINFOID:0000000003856582
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the air fuel ratio (A/F) sensor 1
are shifted, the air-fuel ratio is controlled to stoichiometric, by the sig-
nal from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1 V in richer conditions to 0 V in leaner con-
ditions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
DTC LogicINFOID:0000000003856583
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time between rich and lean than the air fuel ratio (A/
F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold) causes the longer switching
time.
MALFUNCTION A
To judge the malfunctions of heated oxygen sensor 2, ECM monitors
whether the voltage is unusually high during various driving condi-
tions such as fuel cut.
MALFUNCTION B
To judge the malfunctions of heated oxygen sensor 2, ECM monitors
whether the minimum voltage of sensor is sufficiently low during var-
ious driving conditions such as fuel cut.
SEF327R
PBIB1848E
PBIB2376E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0138Heated oxygen sensor 2
(bank 1) circuit high volt-
ageA)An excessively high voltage from the sen-
sor is sent to ECM. Harness or connectors
(The sensor circuit is open or shorted)
 Heated oxygen sensor 2
B)The minimum voltage from the sensor is
not reached to the specified voltage. Harness or connectors
(The sensor circuit is open or shorted)
 Heated oxygen sensor 2
 Fuel pressure
 Fuel injector