2008 NISSAN LATIO wiring diagram

FUEL PUMP
EC-527
< SERVICE INFORMATION >
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Wiring DiagramINFOID:0000000001703067
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
BBWA3004E

FUEL PUMP
EC-529
< SERVICE INFORMATION >
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4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between IPDM E/R and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.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 con-
nector (1).
- Illustration shows the view with inspection hole cover removed.
4. Turn ignition switch ON.
5. Check voltage between “fuel level sensor unit and fuel pump”
terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 9.
NG >> GO TO 6.
6.CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse.
3. Check 15A fuse.
OK or NG
OK >> GO TO 7.
NG >> Replace fuse.
7.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1. Disconnect IPDM E/R harness connector E45.
2. Check harness continuity between IPDM E/R terminal 36 and “fuel level sensor unit and fuel pump” termi-
nal 1. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 13.
NG >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M69, E7
• Harness connectors M12, B101
BBIA0702E
Voltage: Battery voltage should exist for 1 second
after ignition switch is turned ON.
PBIB0795E
Continuity should exist.

EC-530
< SERVICE INFORMATION >
FUEL PUMP
• Harness for open or short between IPDM E/R and “fuel level sensor unit and fuel pump”
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.CHECK FUEL PUMP GROUND CIRCUIT
1. Check harness continuity between “fuel level sensor unit and fuel pump” terminal 3 and ground.
Refer to Wiring Diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 10.
NG >> Repair or replace harness or connectors.
10.CHECK FUEL PUMP
Refer to EC-530, "
Component Inspection".
OK or NG
OK >> GO TO 11.
NG >> Replace fuel pump.
11 .CHECK INTERMITTENT INCIDENT
Refer to EC-136
.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R".
NG >> Repair or replace harness or connectors.
Component InspectionINFOID:0000000001703069
FUEL PUMP
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check resistance between “fuel level sensor unit and fuel pump”
terminals 1 and 3.
3. If NG, replace “fuel level sensor unit and fuel pump”.
Removal and InstallationINFOID:0000000001703070
FUEL PUMP
Refer to FL-5. Continuity should exist.
Resistance: Approximately 0.2 - 5.0Ω [at 25°C (77°F)]
SEC918C

EC-532
< SERVICE INFORMATION >
IGNITION SIGNAL
Wiring Diagram
INFOID:0000000001703072
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
BBWA2658E

IGNITION SIGNAL
EC-537
< SERVICE INFORMATION >
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2. Disconnect IPDM E/R harness connector E43.
3. Check harness continuity between IPDM E/R terminal 3 and condenser-2 terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> Go to EC-137.
NG >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• 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.
8.CHECK CONDENSER-2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between condenser-2 terminal 2 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to power in harness or connectors.
9.CHECK CONDENSER-2
Refer to EC-538, "
Component Inspection"
OK or NG
OK >> GO TO 10.
NG >> Replace condenser-2.
10.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect ignition coil (1) harness connector.
4. Turn ignition switch ON.Continuity should exist.
Continuity should exist.
PBIB3328E

EC-538
< SERVICE INFORMATION >
IGNITION SIGNAL
5. Check voltage between ignition coil terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check the following.
• Harness connector F8
• Harness for open or short between ignition coil and harness connector F8
>> Repair or replace harness or connectors.
12.CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 13.
NG >> Repair open circuit or short to power in harness or connectors.
13.CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 17, 18, 21, 22 and ignition coil terminal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 14.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
14.CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to EC-538, "
Component Inspection".
OK or NG
OK >> GO TO 15.
NG >> Replace ignition coil with power transistor.
15.CHECK INTERMITTENT INCIDENT
Refer to EC-136
.
>>INSPECTION END
Component InspectionINFOID:0000000001703074
IGNITION COIL WITH POWER TRANSISTOR
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible. Voltage: Battery voltage
PBIB0138E
Continuity should exist.
Continuity should exist.

EC-542
< SERVICE INFORMATION >
REFRIGERANT PRESSURE SENSOR
Wiring Diagram
INFOID:0000000001703077
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
BBWA2662E

EC-544
< SERVICE INFORMATION >
REFRIGERANT PRESSURE SENSOR
1. Disconnect refrigerant pressure sensor (1) harness connector.
- : Vehicle front
2. Turn ignition switch ON.
3. Check voltage between refrigerant pressure sensor terminal 3
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between refrigerant pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between refrigerant pressure sensor terminal 1 and ECM terminal 48.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between refrigerant pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between refrigerant pressure sensor terminal 2 and ECM terminal 41.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
BBIA0713E
Voltage: Approximately 5V
SEF479Y
Continuity should exist.
Continuity should exist.