2011 NISSAN LATIO turn signal

ELECTRICAL LOAD SIGNALEC-431
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ELECTRICAL LOAD SIGNAL
DescriptionINFOID:0000000005930116
The electrical load signal (Headlamp switch signal, rear
window defogger switch signal, etc.) is transferred via
the CAN communication line.
Component Function CheckINFOID:0000000005930117
1.CHECK REAR WINDOW DEF OGGER SWITCH FUNCTION
1. Turn ignition switch ON.
2. Connect CONSULT-III and select “DATA MONITOR” mode.
3. Select “LOAD SIGNAL” and check indication under the following conditions.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-431, "
Diagnosis Procedure".
2.CHECK LIGHTING SWITCH FUNCTION
Check “LOAD SIGNAL” indication under the following conditions.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Go to EC-431, "
Diagnosis Procedure".
3.CHECK HEATER FAN CONTROL SWITCH FUNCTION
Select “HEATER FAN SW” and check indication under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-431, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005930118
1.INSPECTION START
Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to EC-431, "
Compo-
nent Function Check".
Which circuit is related to the incident?
Rear window defogger>>GO TO 2.
Headlamp>>GO TO 3.
Heater fan>>GO TO 4.
2.CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to GW-55, "
Work Flow".
Monitor item ConditionIndication
LOAD SIGNAL Rear window defogger switch ON ON
OFF OFF
Monitor item
ConditionIndication
LOAD SIGNAL Lighting switch ON at 2nd position ON
OFF
OFF
Monitor item ConditionIndication
HEATER FAN SW Heater fan control switch ON ON
OFF OFF
Revision: May 2010
2011 Versa

FUEL INJECTOREC-435
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4. Check the voltage between fuel injector harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
• IPDM E/R harness connector E45
• 10 A 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-435, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace malfunctioning fuel injector. Refer to EM-33, "
Exploded View".
5.CHECK INTERMITTENT INCIDENT
Refer to EC-122, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R".
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
Component InspectionINFOID:0000000005930123
1.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
Fuel injector Ground Voltage
Cylinder Connector Terminal
1F17 1
Ground Battery voltage
2F
18 1
3F 19 1
4F 20 1
JMBIA1636ZZ
Fuel injector ECM
Continuity
Cylinder Connector Terminal Connector Terminal
1F17 2
F1031
Existed
2F18 2
30
3F19 2 29
4F20 2 25
Revision: May 2010 2011 Versa

FUEL PUMPEC-437
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FUEL PUMP
DescriptionINFOID:0000000005930124
*: 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
start ability. 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 EC M stops pump operation and prevents battery discharging,
thereby improving safety. The ECM does not directly dr ive the fuel pump. It controls the ON/OFF fuel pump
relay, which in turn controls the fuel pump.
Component Function CheckINFOID:0000000005930125
1.CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose (1) with two fingers.
Is the inspection result normal?
YES >> INSPECTION END
NO >> EC-438, "
Diagnosis Procedure".
Sensor Input signal to ECMECM functionActuator
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 cranking Operates.
When engine is stopped Stops in 1.5 seconds.
Except as shown above Sto ps .
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
ALBIA0276ZZ
Revision: May 2010 2011 Versa

EC-442
< COMPONENT DIAGNOSIS >[HR16DE]
IGNITION SIGNAL
IGNITION SIGNAL
DescriptionINFOID:0000000005930129
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/O
FF operation induces the proper high voltage in the coil
secondary circuit.
Component Function CheckINFOID:0000000005930130
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-444, "
Diagnosis Procedure".
2.IGNITION SIGNAL FUNCTION
With CONSULT-III
1. Perform “POWER BALANCE” in “A CTIVE 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-444, "
Diagnosis Procedure".
3.IGNITION SIGNAL FUNCTION
Without CONSULT-III
1. Let engine idle.
2. Read the voltage signal between ECM harness connector and
ground.
NOTE:
The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-444, "
Diagnosis Procedure".
ECM Ground Voltage signal
Connector Terminal
F10 17
Ground
18
21
22
PBIA9567J
PBIA9265J
Revision: May 2010
2011 Versa

EC-444
< COMPONENT DIAGNOSIS >[HR16DE]
IGNITION SIGNAL
Diagnosis Procedure
INFOID:0000000005930132
1.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
BBWA2659E
Revision: May 2010 2011 Versa

IGNITION SIGNALEC-445
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2. Check the voltage between ECM harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-123, "
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 5.
NO >> GO TO 3.
3.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E43.
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-123, "Diagnosis Procedure".
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• IPDM E/R harness connector E43
• Harness for open or short between IPDM E/R and condenser-2
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.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.
ECM Ground Voltage
Connector Terminal
E16 105 Ground Battery voltage
PBIA9575J
Condenser-2
Ground Voltage
Connector Terminal
F26 1 Ground Battery voltage
PBIB0624E
IPDM E/R Condenser-2
Continuity
Connector Terminal Connector Terminal
E43 3F26 1 Existed
Condenser-2
Ground Continuity
Connector Terminal
F26 2Ground Existed
Revision: May 2010 2011 Versa

EC-446
< COMPONENT DIAGNOSIS >[HR16DE]
IGNITION SIGNAL
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK CONDENSER
Refer to EC-448, "
Component Inspection (Condenser-2)".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace condenser.
7.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.
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 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 9.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
9.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.
Ignition coil
Ground Voltage
Cylinder Connector Terminal
1F34 3
Ground Battery voltage
2F35 3
3F36 3
4F37 3
PBIB0138E
Ignition coil
Ground Continuity
Cylinder Connector Terminal
1F34 2
Ground Existed
2F
35 2
3F 36 2
4F 37 2
Revision: May 2010 2011 Versa

IGNITION SIGNALEC-447
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3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 10.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
10.CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to EC-447, "
Component Inspection (Ignition Coil with Power Transistor)".
Is the inspection result normal?
YES >> GO TO 11.
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-46, "
Exploded View".
11 .CHECK INTERMITTENT INCIDENT
Refer to EC-122, "
Diagnosis Procedure".
>> INSPECTION END
Component Inspection (Ignition Coil with Power Transistor)INFOID:0000000005930133
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 per the fol- lowing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transis- tor. Refer to EM-46, "
Exploded View".
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.
Ignition coil ECM
Continuity
Cylinder Connector Terminal Connector Terminal
1F34 1
F1417
Existed
2F35 1
18
3F36 1 22
4F37 1 21
Terminals Resistance [Ω at 25° C (77°F)]
1 and 2 Except 0 or ∞
1 and 3 Except 0
2 and 3
PBIB0847E
Revision: May 2010 2011 Versa