2007 NISSAN TIIDA Service Repair Manual

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Page 2177 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-828
< COMPONENT DIAGNOSIS >[MR18DE]
P0135 HO2S1 HEATER
P0135 HO2S1 HEATER
DescriptionINFOID:0000000001161797
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the heated oxygen sensor 1 he

EC-828
< COMPONENT DIAGNOSIS >[MR18DE]
P0135 HO2S1 HEATER
P0135 HO2S1 HEATER
DescriptionINFOID:0000000001161797
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the heated oxygen sensor 1 heater corresponding to the engine
speed and engine coolant temperature. The duty percent varies with engine coolant temperature when engine
is started.
DTC LogicINFOID:0000000001161798
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.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:
Before performing the following procedure, confirm that battery voltage is more than between 11V at
idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Wait at least 5 seconds.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-828, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161799
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK HO2S1 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check the voltage between HO2S1 sensor 1 harness connector and ground.
Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speed
Heated oxygen sensor 1
heater controlHeated oxygen sensor 1
heater
Mass air flow sensor Amount of intake air
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0135Heated oxygen sensor 1
heater control circuit lowThe current amperage in the heated oxygen sensor
1 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 1 heater.) Harness or connectors
(The heated oxygen sensor 1 heater
circuit is open or shorted.)
Heated oxygen sensor 1 heater

Page 2178 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0135 HO2S1 HEATER
EC-829
< COMPONENT DIAGNOSIS >[MR18DE]
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Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the followi

Page 2179 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-830
< COMPONENT DIAGNOSIS >[MR18DE]
P0135 HO2S1 HEATER
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE HEATED OXYGEN SENSOR 1
Replace heated oxygen sensor 1.
CAUTION

Page 2180 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0138 HO2S2
EC-831
< COMPONENT DIAGNOSIS >[MR18DE]
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P0138 HO2S2
DescriptionINFOID:0000000001161801
The heated oxygen sensor 2, after three way catalyst (manifold),
monit

P0138 HO2S2
EC-831
< COMPONENT DIAGNOSIS >[MR18DE]
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P0138 HO2S2
DescriptionINFOID:0000000001161801
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 heated oxygen sensor 1 are
shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1V in richer conditions to 0V in leaner condi-
tions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
DTC LogicINFOID:0000000001161802
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time between rich and lean than the heated oxygen
sensor 1. The oxygen 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 voltage is unusually high during the various driving con-
dition such as fuel-cut.
DTC CONFIRMATION PROCEDURE
1.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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
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 2 minutes.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-832, "Diagnosis Procedure".
NO >> INSPECTION END
SEF327R
PBIB1848E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0138Heated oxygen sensor 2
circuit high voltageAn excessively high voltage from the sensor
is sent to ECM. Harness or connectors
(The sensor circuit is open or shorted)
Heated oxygen sensor 2

Page 2181 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-832
< COMPONENT DIAGNOSIS >[MR18DE]
P0138 HO2S2
Diagnosis Procedure
INFOID:0000000001161803
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground In

Page 2182 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0138 HO2S2
EC-833
< COMPONENT DIAGNOSIS >[MR18DE]
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Replace heated oxygen sensor 2.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of m

Page 2183 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-834
< COMPONENT DIAGNOSIS >[MR18DE]
P0138 HO2S2
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 connect

Page 2184 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0139 HO2S2
EC-835
< COMPONENT DIAGNOSIS >[MR18DE]
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P0139 HO2S2
DescriptionINFOID:0000000001161805
The heated oxygen sensor 2, after three way catalyst (manifold),
monit

P0139 HO2S2
EC-835
< COMPONENT DIAGNOSIS >[MR18DE]
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P0139 HO2S2
DescriptionINFOID:0000000001161805
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 heated oxygen sensor 1 are
shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1V in richer conditions to 0V in leaner condi-
tions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
DTC LogicINFOID:0000000001161806
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time
between rich and lean than the heated oxygen sensor 1. The oxygen
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 switching response of the sen-
sor's voltage is faster than specified during the various driving condi-
tion such as fuel-cut.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 11.
2.PRECONDITIONING
“COMPLETED” will appear on CONSULT-III screen when all tests “COND1”, “COND2” and “COND3” are
completed.
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 the best results, perform DTC WORK SUPPORT at a temperature of 0 to 30°C (32 to 86°F).
Never stop engine during this procedure. If the engine is stopped, retry this procedure from PERFORM PRO-
CEDURE FOR COND1 - II.
SEF327R
SEF302U
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0139Heated oxygen sensor 2
circuit slow responseIt takes more time for the sensor to respond be-
tween rich and lean than the specified time. Harness or connectors
(The sensor circuit is open or shorted)
Heated oxygen sensor 2
Fuel pressure
Fuel injector
Intake air leaks

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