Page 1969 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-620
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2 HEATER
HO2S2 HEATER
DescriptionINFOID:0000000001697503
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 NISSAN TIIDA 2007 Service Repair Manual EC-620
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2 HEATER
HO2S2 HEATER
DescriptionINFOID:0000000001697503
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2](/manual-img/5/57395/w960_57395-1968.png)
EC-620
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2 HEATER
HO2S2 HEATER
DescriptionINFOID:0000000001697503
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
Component Function CheckINFOID:0000000001697504
1.CHECK HEATED OXYGEN SENSOR 2 HRATER FUNCTION
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 let it idle.
4. Check the voltage between ECM harness connector and ground under the following condition.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-620, "
Diagnosis Procedure"
Diagnosis ProcedureINFOID:0000000001697505
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E21. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
Sensor Input signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speed
Heated oxygen sensor 2
heater controlHeated oxygen sensor 2 heater
Engine coolant temperature sensor Engine coolant temperature
Mass air flow sensor Amount of intake air
Engine speed rpm Heated oxygen sensor 2 heater
Above 3,900OFF
Below 3,900 rpm after the following conditions are met.
Engine: After warming up
Keeping the engine speed between 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute under no loadON
ECM
Ground Condition Voltage signal
Connector Terminal
F75
(HO2S2 heater signal)GroundAt idleApprox. 10V
Engine speed: Above 3,900 rpmBATTERY VOLTAGE
(11 - 14V)
JMBIA0325GB
Page 1970 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HO2S2 HEATER
EC-621
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NO >> Repair or replace ground connection.
2.CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect HO2S2 NISSAN TIIDA 2007 Service Repair Manual HO2S2 HEATER
EC-621
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NO >> Repair or replace ground connection.
2.CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect HO2S2](/manual-img/5/57395/w960_57395-1969.png)
HO2S2 HEATER
EC-621
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NO >> Repair or replace ground connection.
2.CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect HO2S2 harness connector.
2. Turn ignition switch ON.
3. Check the voltage between HO2S2 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
IPDM E/R connector E11
10A fuse (No. 56)
Harness for open or short between heated oxygen sensor 2 and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between HO2S2 harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F121, E7
Harness for open or short between heated oxygen sensor 2 and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK HO2S2 HEATER
Refer to EC-622, "
Component Inspection".
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:
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 tool and approved anti-seize lubricant.
HO2S2
Ground Voltage
Connector Terminal
E58 2 Ground Battery voltage
HO2S2 ECM
Continuity
Connector Terminal Connector Terminal
E58 3 F7 5 Existed
Page 1971 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-622
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2 HEATER
>> INSPECTION END
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionI NISSAN TIIDA 2007 Service Repair Manual EC-622
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2 HEATER
>> INSPECTION END
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionI](/manual-img/5/57395/w960_57395-1970.png)
EC-622
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2 HEATER
>> INSPECTION END
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000001697506
1.CHECK HEATED OXYGEN SENSOR 2 HEATER
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Check resistance between HO2S2 terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE HEATED OXYGEN SENSOR 2
Replace 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 tool and approved anti-seize lubricant.
>> INSPECTION END
Terminals Resistance [at 25°C (77°F)]
2 and 3 3.3 - 4.4 Ω
1 and 2, 3, 4
∞ Ω
(Continuity should not exist)
4 and 1, 2, 3
Page 1972 of 5883
![NISSAN TIIDA 2007 Service Repair Manual IAT SENSOR
EC-623
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IAT SENSOR
DescriptionINFOID:0000000001697507
The intake air temperature sensor is built-into mass NISSAN TIIDA 2007 Service Repair Manual IAT SENSOR
EC-623
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IAT SENSOR
DescriptionINFOID:0000000001697507
The intake air temperature sensor is built-into mass](/manual-img/5/57395/w960_57395-1971.png)
IAT SENSOR
EC-623
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IAT SENSOR
DescriptionINFOID:0000000001697507
The intake air temperature sensor is built-into mass air flow sensor
(1). The sensor detects intake air temperature and transmits a signal
to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to
the change in temperature. Electrical resistance of the thermistor
decreases in response to the temperature rise.
*: These data are reference values and are measured between ECM terminal 46
(Intake air temperature sensor) and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing
so may result in damage to the ECM's transistor. Use a ground other than ECM
terminals, such as the ground.
Component Function CheckINFOID:0000000001697508
1.CHECK INTAKE AIR TEMPERATURE SENSOR FUNCTION
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-623, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001697509
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E21. 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 INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect mass air flow sensor (with intake air temperature sensor) harness connector.
2. Turn ignition switch ON.
3. Check the voltage between mass air flow sensor harness connector and ground.
PBIA9559J
Intake air temperature
°C (°F)Voltage* V Resistance kΩ
25 (77) 3.3 1.800 - 2.200
80 (176) 1.2 0.283 - 0.359
SEF012P
ECM
Ground Voltage
Connector Terminal
F8 46 Ground Approx. 0 - 4.8V
Page 1973 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-624
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
IAT SENSOR
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or conne NISSAN TIIDA 2007 Service Repair Manual EC-624
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
IAT SENSOR
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or conne](/manual-img/5/57395/w960_57395-1972.png)
EC-624
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
IAT SENSOR
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK INTAKE AIR TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between mass air flow sensor harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK INTAKE AIR TEMPERATURE SENSOR
Refer to EC-624, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace mass air flow sensor (with intake air temperature sensor).
5.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000001697510
1.CHECK INTAKE AIR TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect mass air flow sensor harness connector.
3. Check resistance between mass air flow sensor terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace mass air flow sensor (with intake air temperature sensor).
MAF sensor
Ground Voltage
Connector Terminal
E18 2 Ground Approx. 5V
MAF sensor ECM
Continuity
Connector Terminal Connector Terminal
E18 1 F8 55 Existed
Terminals Condition Resistance
1 and 2 Temperature C°° (F°) 25 (77) 1.800 - 2.200 kΩ
Page 1974 of 5883
![NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-625
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IGNITION SIGNAL
DescriptionINFOID:0000000001693439
The ignition signal from the ECM is sent to NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-625
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IGNITION SIGNAL
DescriptionINFOID:0000000001693439
The ignition signal from the ECM is sent to](/manual-img/5/57395/w960_57395-1973.png)
IGNITION SIGNAL
EC-625
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IGNITION SIGNAL
DescriptionINFOID:0000000001693439
The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil
secondary circuit.
Component Function CheckINFOID:0000000001693440
1.INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1 >> With CONSULT-III: GO TO 2.
YES-2 >> Without CONSULT-III: GO TO 3.
NO >> Go to EC-625, "
Diagnosis Procedure".
2.IGNITION SIGNAL FUNCTION
With CONSULT-III
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
2. Make sure that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-625, "
Diagnosis Procedure".
3.IGNITION SIGNAL FUNCTION
Without CONSULT-III
1. Let engine idle.
2. Read the voltage signal between ECM harness connector terminals as follows.
NOTE:
The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-625, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001693441
1.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
2. Check the voltage between ECM harness connector terminals as follows.
ECM Ground
Voltage signal
Connector Terminal Connector Terminal
F1017
E16 108 18
21
22
JMBIA0329GB
(+) (–)
Vo l ta g e
Connector Terminal Connector Terminal
E16 105 E16 108 Battery voltage
Page 1975 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-626
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-477, "
Diagnosis Procedure".
2.CHECK IGNITION COIL POWER SUPPL NISSAN TIIDA 2007 Service Repair Manual EC-626
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-477, "
Diagnosis Procedure".
2.CHECK IGNITION COIL POWER SUPPL](/manual-img/5/57395/w960_57395-1974.png)
EC-626
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-477, "
Diagnosis Procedure".
2.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser-2 harness connector.
3. Turn ignition switch ON.
4. Check the voltage between condenser-2 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between IPDM E/R harness connector and condenser-2 harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> Go to EC-477, "Diagnosis Procedure".
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK CONDENSER-2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between condenser-2 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 or short to ground or short to power in harness or connectors.
5.CHECK CONDENSER
Refer to EC-628, "
Component Inspection (Condenser)"
Is the inspection result normal?
YES >> GO TO 6.
NG >> Replace condenser.
6.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Reconnect all harness connectors disconnected.
2. Disconnect ignition coil harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ignition coil harness connector and ground.
Condenser-2
Ground Voltage
Connector Terminal
F26 1 Ground Battery voltage
IPDM E/R Condenser-2
Continuity
Connector Terminal Connector Terminal
E43 3 F26 1 Existed
Condenser-2
Ground Continuity
Connector Terminal
F26 2 Ground Existed
Page 1976 of 5883
![NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-627
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Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-627
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Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground](/manual-img/5/57395/w960_57395-1975.png)
IGNITION SIGNAL
EC-627
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Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between ignition coil harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
8.CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check the continuity between ECM harness connector and ignition coil harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
9.CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to EC-628, "
Component Inspection (Ignition Coil with Power Transistor)".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace malfunctioning ignition coil with power transistor.
10.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Ignition coil
Ground Voltage
Cylinder Connector Terminal
1F34 3
Ground Battery voltage 2F35 3
3F36 3
4F37 3
Ignition coil
Ground Continuity
Cylinder Connector Terminal
1F34 2
Ground Existed 2F35 2
3F36 2
4F37 2
Ignition coil ECM
Continuity
Cylinder Connector Terminal Connector Terminal
1F34 1
F1017
Existed 2F35 1 18
3F36 1 22
4F37 1 21