2007 NISSAN TIIDA Service Repair Manual

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Page 1961 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-612
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S1
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 a

Page 1962 of 5883

NISSAN TIIDA 2007 Service Repair Manual HO2S1 HEATER
EC-613
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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HO2S1 HEATER
DescriptionINFOID:0000000001697495
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty c

Page 1963 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-614
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S1 HEATER
NO >> Repair or replace ground connection.
2.CHECK HO2S1 POWER SUPPLY CIRCUIT
1. Disconnect HO2S1 harness connector.
2. Turn igni

Page 1964 of 5883

NISSAN TIIDA 2007 Service Repair Manual HO2S1 HEATER
EC-615
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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Component InspectionINFOID:0000000001697498
1.CHECK HEATED OXYGEN SENSOR 1
1. Turn ignition switc

Page 1965 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-616
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2
HO2S2
DescriptionINFOID:0000000001697499
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in t

EC-616
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2
HO2S2
DescriptionINFOID:0000000001697499
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.
Component Function CheckINFOID:0000000001697500
1.PERFORM COMPONENT FUNCTION CHECK-I
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 and ground under the following condition.
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 and ground under the following condition.
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 and ground under the following condition.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-617, "
Diagnosis Procedure".
SEF327R
ECM
Ground Condition Voltage
Connector Terminal
F850
(HO2S2 signal)GroundRevving up to 4,000 rpm under no load at
least 10 timesThe voltage does not remain in the range of
0.2 - 0.4V.
ECM
Ground Condition Voltage
Connector Terminal
F850
(HO2S2 signal)Ground Keeping engine speed at idle for 10 minutesThe voltage does not remain in the range of
0.2 - 0.4V.
ECM
Ground Condition Voltage
Connector Terminal
F850
(HO2S2 signal)GroundCoasting from 80 km/h (50 MPH) in 3rd gear po-
sition The voltage does not remain in the range of
0.2 - 0.4V.

Page 1966 of 5883

NISSAN TIIDA 2007 Service Repair Manual HO2S2
EC-617
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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Diagnosis ProcedureINFOID:0000000001697501
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Che

Page 1967 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-618
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.REPLACE HEATED OXYGEN SENSOR 2
Replace heated oxygen sensor 2.
CAUTION

Page 1968 of 5883

NISSAN TIIDA 2007 Service Repair Manual HO2S2
EC-619
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4. Let engine idle for 1 minute.
5. Check the voltage between ECM harness connector and ground under the

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