NISSAN TIIDA 2007 Service Repair Manual

EC-312
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
ELECTRICAL LOAD SIGNAL
>> INSPECTION END
3.CHECK HEADLAMP SYSTEM
Refer to EXL-10, "
System Diagram" (XENON TYPE) or EXL-8, "System Diagram" (HALOGEN TYPE).
>> INSPECTION END
4.CHECK HEATER FAN CONTROL SYSTEM
Refer to HAC-118, "
System Description" (without NAVI system) or HAC-232, "System Description" (with NAVI
system).
>> INSPECTION END

FUEL INJECTOR
EC-313
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
FUEL INJECTOR
DescriptionINFOID:0000000001671099
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
Component Function CheckINFOID:0000000001671100
1.INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
YES >> GO TO 2.
NO >> Go to EC-313, "
Diagnosis Procedure".
2.CHECK FUEL INJECTOR FUNCTION
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
3. Make sure that each circuit produces a momentary engine speed drop.
Without CONSULT-III
1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-313, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001671101
1.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
3. Turn ignition switch ON.
4. Check the voltage between fuel injector harness connector and ground.
PBIA9664J
Clicking noise should be heard.
PBIB3332E

EC-314
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
FUEL INJECTOR
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors F8, E8
 10A fuse (No. 55)
 Harness for open or short between fuel injector and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between fuel injector 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 FUEL INJECTOR
Refer to EC-314, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace malfunctioning fuel injector.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000001671102
1.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
3. Check resistance between fuel injector terminals as follows.
Fuel injector
Ground Voltage
Cylinder Connector Terminal
1F17 1
Ground Battery voltage 2F18 1
3F19 1
4F20 1
Fuel injector ECM
Continuity
Cylinder Connector Terminal Connector Terminal
1F17 2
F1031
Existed 2F18 2 30
3F19 2 29
4F20 2 25

FUEL INJECTOR
EC-315
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P OIs the inspection result normal?
YES >> INSPECTION END
NO >> Replace malfunctioning fuel injector.
Terminals Resistance [at 10 - 60°C (50 - 140°F)]
1 and 2 11.1 - 14.5Ω

EC-316
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
FUEL PUMP
FUEL PUMP
DescriptionINFOID:0000000001671103
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
startability. If the ECM receives a engine speed signal from the camshaft position sensor (PHASE), it knows
that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when
the ignition switch is ON, the engine stalls. The ECM stops pump operation and prevents battery discharging,
thereby improving safety. The ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump
relay, which in turn controls the fuel pump.
Component Function CheckINFOID:0000000001671104
1.CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
Is the inspection result normal?
YES >> INSPECTION END
NO >>EC-316, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001671105
1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
Sensor Input signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
Fuel pump controlFuel pump relay
↓
Fuel pump
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and crankingOperates.
When engine is stopped Stops in 1.5 seconds.
Except as shown aboveStops.
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
ALBIA0276ZZ
(+) (–)
Voltag e
Connector Terminal Connector Terminal
F10 23 E16 108 Battery voltage

FUEL PUMP
EC-317
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
1. Turn ignition switch OFF.
2. Disconnect IDPDM E/R harness connector.
3. Check the continuity between IPDM E/R harness connector and ECM harness connector.
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.DETECT MALFUNCTIONING PART
Check the following.
 Harness or connectors E8, F8.
 Harness for open or short to ground and short power.
>> Repair harness or connectors.
4.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect “fuel level sensor unit and fuel pump” harness connector.
4. Turn ignition switch ON.
5. Check voltage between “fuel level sensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 5.
5.CHECK 10A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse (No. 48) from IPDM E/R.
3. Check 15A fuse.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace fuse.
6.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1. Disconnect IPDM E/R harness connector.
2. Check the continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel pump”
harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 10.
ECM IPDM E/R
Continuity
Connector Terminal Connector Terminal
F10 23 E46 47 Existed
Fuel level sensor unit
and fuel pump
Ground Voltage
Connector Terminal
B40 1 GroundBattery voltage should exist 1
second after ignition switch is
turn ON.
IPDM E/RFuel level sensor unit and
fuel pump
Continuity
Connector Terminal Connector Terminal
E45 36 B40 1 Existed

EC-318
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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-318, "
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:0000000001671106
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 - 5.0Ω [at 25°C (77°F)]

IGNITION SIGNAL
EC-319
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
IGNITION SIGNAL
DescriptionINFOID:0000000001671107
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:0000000001671108
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-319, "
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-319, "
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-319, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001671109
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

EC-320
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-124, "
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-124, "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-322, "
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

IGNITION SIGNAL
EC-321
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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-322, "
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