Page 2329 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-980
< COMPONENT DIAGNOSIS >[MR18DE]
FUEL PUMP
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E7, M69, M12, B1.
Harness for open or short between IPDM E/R an NISSAN TIIDA 2007 Service Repair Manual EC-980
< COMPONENT DIAGNOSIS >[MR18DE]
FUEL PUMP
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E7, M69, M12, B1.
Harness for open or short between IPDM E/R an](/manual-img/5/57395/w960_57395-2328.png)
EC-980
< COMPONENT DIAGNOSIS >[MR18DE]
FUEL PUMP
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E7, M69, M12, B1.
Harness for open or short between IPDM E/R and “fuel level sensor unit and fuel pump”
>> Repair open circuit or short to power in harness or connectors.
8.CHECK FUEL PUMP GROUND CIRCUIT
1. Check the continuity between “fuel level sensor unit and fuel pump” and ground.
2. Also heck harness for short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit or short to power in harness or connectors.
9.CHECK FUEL PUMP
Refer to EC-980, "
Component Inspection (Fuel Pump)".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace fuel pump.
10.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connectors.
Component Inspection (Fuel Pump)INFOID:0000000001161976
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit and fuel pump” harness connector.
3. Check resistance between “fuel level sensor unit and fuel pump” terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace “fuel level sensor unit and fuel pump”.
Fuel level sensor unit
and fuel pump
Ground Continuity
Connector Terminal
B40 3 Ground Existed
Terminals Resistance
1 and 3 0.2 - 5.0 Ω [at 25°C (77°F)]
Page 2330 of 5883
![NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-981
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
IGNITION SIGNAL
DescriptionINFOID:0000000001161977
The ignition signal from the ECM is sent to and amplified by t NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-981
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
IGNITION SIGNAL
DescriptionINFOID:0000000001161977
The ignition signal from the ECM is sent to and amplified by t](/manual-img/5/57395/w960_57395-2329.png)
IGNITION SIGNAL
EC-981
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
IGNITION SIGNAL
DescriptionINFOID:0000000001161977
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:0000000001161978
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-981, "
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-981, "
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-981, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161979
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 2331 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-982
< COMPONENT DIAGNOSIS >[MR18DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-789, "
Diagnosis Procedure".
2.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Tur NISSAN TIIDA 2007 Service Repair Manual EC-982
< COMPONENT DIAGNOSIS >[MR18DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-789, "
Diagnosis Procedure".
2.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Tur](/manual-img/5/57395/w960_57395-2330.png)
EC-982
< COMPONENT DIAGNOSIS >[MR18DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-789, "
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-789, "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-984, "
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 2332 of 5883
![NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-983
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground or short to power i NISSAN TIIDA 2007 Service Repair Manual IGNITION SIGNAL
EC-983
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground or short to power i](/manual-img/5/57395/w960_57395-2331.png)
IGNITION SIGNAL
EC-983
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
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-984, "
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
Page 2333 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-984
< COMPONENT DIAGNOSIS >[MR18DE]
IGNITION SIGNAL
Component Inspection (Ignition Coil with Power Transistor)
INFOID:0000000001161980
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
1. Turn ignition NISSAN TIIDA 2007 Service Repair Manual EC-984
< COMPONENT DIAGNOSIS >[MR18DE]
IGNITION SIGNAL
Component Inspection (Ignition Coil with Power Transistor)
INFOID:0000000001161980
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
1. Turn ignition](/manual-img/5/57395/w960_57395-2332.png)
EC-984
< COMPONENT DIAGNOSIS >[MR18DE]
IGNITION SIGNAL
Component Inspection (Ignition Coil with Power Transistor)
INFOID:0000000001161980
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as follows.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transistor.
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-II
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following pro-
cedure.
4. Start engine.
5. After engine stalls, crank it two or three times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -
0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
12. Crank engine for about three seconds, and check whether spark
is generated between the spark plug and the grounded metal
portion.
CAUTION:
Do not approach to the spark plug and the ignition coil
within 50 cm (19.7 in). Be careful not to get an electrical
shock while checking, because the electrical discharge
voltage becomes 20kV or more.
It might cause to damage the ignition coil if the gap of more than 17 mm 0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the spark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace malfunctioning ignition coil with power transistor.
Component Inspection (Condenser)INFOID:0000000001161981
1.CHECK CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser-2 harness connector.
Terminals Resistance [at 25°C (77°F)]
1 and 2 Except 0 or ∞ Ω
1 and 3
Except 0 Ω
2 and 3
Spark should be generated.
JMBIA0066GB
Page 2334 of 5883
IGNITION SIGNAL
EC-985
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
3. Check resistance between condenser-2 terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace condenser.
Terminals Resistance
1 and 2 Above 1 MΩ [at 25°C (77°F)]
Page 2335 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-986
< COMPONENT DIAGNOSIS >[MR18DE]
MALFUNCTION INDICATOR
MALFUNCTION INDICATOR
DescriptionINFOID:0000000001161982
The Malfunction Indicator (MI) is located on the combination meter.
The MI will l NISSAN TIIDA 2007 Service Repair Manual EC-986
< COMPONENT DIAGNOSIS >[MR18DE]
MALFUNCTION INDICATOR
MALFUNCTION INDICATOR
DescriptionINFOID:0000000001161982
The Malfunction Indicator (MI) is located on the combination meter.
The MI will l](/manual-img/5/57395/w960_57395-2334.png)
EC-986
< COMPONENT DIAGNOSIS >[MR18DE]
MALFUNCTION INDICATOR
MALFUNCTION INDICATOR
DescriptionINFOID:0000000001161982
The Malfunction Indicator (MI) is located on the combination meter.
The MI will light up when the ignition switch is turned ON without the
engine running. This is a bulb check.
When the engine is started, the MI should go off. If the MI remains
on, the on board diagnostic system has detected an engine system
malfunction.
For details, refer to EC-986, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000001161983
1.CHECK MI FUNCTION
1. Turn ignition switch ON.
2. Make sure that MI lights up.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-986, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161984
1.CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble diagnosis for DTC U1000, U1001. Refer to EC-793, "
Diagnosis Procedure".
2.CHECK DTC WITH COMBINATION METER
Refer to MWI-22, "
CONSULT-III Function (METER/M&A)".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace.
3.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace combination meter.
NO >> Repair or replace.
SAT652J
Page 2336 of 5883
![NISSAN TIIDA 2007 Service Repair Manual POSITIVE CRANKCASE VENTILATION
EC-987
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
POSITIVE CRANKCASE VENTILATION
DescriptionINFOID:0000000001161985
This system returns blow-by gas NISSAN TIIDA 2007 Service Repair Manual POSITIVE CRANKCASE VENTILATION
EC-987
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
POSITIVE CRANKCASE VENTILATION
DescriptionINFOID:0000000001161985
This system returns blow-by gas](/manual-img/5/57395/w960_57395-2335.png)
POSITIVE CRANKCASE VENTILATION
EC-987
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
POSITIVE CRANKCASE VENTILATION
DescriptionINFOID:0000000001161985
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV
valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air passes
through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
Component InspectionINFOID:0000000001161986
1.CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace PCV valve.
PBIB0492E
PBIB1588E
PBIB1589E