2010 NISSAN LATIO sensor

EC-1018
< SERVICE INFORMATION >[MR18DE]
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-1018, "
Component Inspection".
OK or NG
OK >> GO TO 11.
NG >> Replace fuel pump.
11 .CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R".
NG >> Repair or replace harness or connectors.
Component InspectionINFOID:0000000005532914
FUEL PUMP
1. Disconnect “fuel level sensor uni t 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:0000000005532915
FUEL PUMP
Refer to FL-6, "Removal and Installation".
Continuity should exist.
Resistance: Approximately 0.2 - 5.0
Ω [at 25° C (77°F)]
SEC918C
Revision: January 20102010 Versa

EC-1028
< SERVICE INFORMATION >[MR18DE]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
Component DescriptionINFOID:0000000005532921
The refrigerant pressure sensor (1) is installed at the condenser of
the air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
• : Vehicle front
BBIA0713E
PBIB2657E
Revision: January 20102010 Versa

REFRIGERANT PRESSURE SENSOREC-1029
< SERVICE INFORMATION > [MR18DE]
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Wiring DiagramINFOID:0000000005532922
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals wh
en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
BBWA2662E
Revision: January 20102010 Versa

EC-1030
< SERVICE INFORMATION >[MR18DE]
REFRIGERANT PRESSURE SENSOR
Diagnosis Procedure
INFOID:0000000005532923
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check voltage between ECM terminal 41 and ground with CON- SULT-III or tester.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK GROUND CONNECTIONS
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine and turn ignition switch OFF.
3. Loosen and retighten ground screw on the body. Refer to EC-638, "
Ground Inspection".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.
3.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
TERMI- NAL NO. WIRE
COLOR ITEM
CONDITIONDATA (DC Voltage)
41 GR Refrigerant pressure sensor [Engine is running]
•
Warm-up condition
• Both A/C switch and blower fan switch: ON
(Compressor operates) 1.0 - 4.0 V
48 BR Sensor ground
(Refrigerant pressure sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
74 W Sensor power supply
(Refrigerant pressure sensor) [Ignition switch: ON]
Approximately 5 V
Voltage: 1.0 - 4.0 V
PBIA9574J
:Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15
BBIA0698E
Revision: January 20102010 Versa

REFRIGERANT PRESSURE SENSOREC-1031
< SERVICE INFORMATION > [MR18DE]
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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-III 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 IN PUT 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 5 V
SEF479Y
Continuity should exist.
Continuity should exist.
Revision: January 20102010 Versa

EC-1032
< SERVICE INFORMATION >[MR18DE]
REFRIGERANT PRESSURE SENSOR
OK >> GO TO 9.
NG >> GO TO 8.
8.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.
9.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
OK or NG
OK >> Replace refrigerant pressure sensor.
NG >> Repair or replace.
Removal and InstallationINFOID:0000000005532924
REFRIGERANT PRESSURE SENSOR
Refer to MTC-89, "Removal and Installation of Refrigerant Pressure Sensor".
Revision: January 20102010 Versa

SERVICE DATA AND SPECIFICATIONS (SDS)EC-1035
< SERVICE INFORMATION > [MR18DE]
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SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel PressureINFOID:0000000005532926
Idle Speed and Ignition TimingINFOID:0000000005532927
*: Under the following conditions:
• Air conditioner switch: OFF
• Electric load: OFF (Lights, heater fan & rear window defogger)
• Steering wheel: Kept in straight-ahead position
Calculated Load ValueINFOID:0000000005532928
Mass Air Flow SensorINFOID:0000000005532929
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorINFOID:0000000005532930
Engine Coolant Temperature SensorINFOID:0000000005532931
Fuel pressure at idle
Approximately 350 kPa (3.57 kg/cm2, 51 psi)
Target idle speedA/T No load* (in P or N position)
700 ± 50 rpm
CVT No load* (In P or N position)
M/T No load* (in Neutral position)
Air conditioner: ON A/T In P or N position
850 rpm or more
CVT In P or N position
M/T In Neutral position
Ignition timing A/T In P or N position
13 ± 5 ° BTDC
CVT In P or N position
M/T In Neutral position
Calculated load value (Using CONSULT-III or GST)
At idle 10 - 35 %
At 2,500 rpm 10 - 35 %
Supply voltageBattery voltage (11 - 14 V )
Output voltage at idle 1.0 - 1.3* V
Mass air flow (Using CONSULT-III or GST) 1.0 - 4.0 g·m/sec at idle*
2.0 - 10.0 g·m/sec at 2,500 rpm*
Temperature [ °C ( °F)] Resistance (k Ω)
25 (77) 1.800 - 2.200
Temperature [°C ( °F)] Resistance (k Ω)
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Revision: January 20102010 Versa

EC-1036
< SERVICE INFORMATION >[MR18DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Air Fuel Ratio (A/F) Sensor 1 Heater
INFOID:0000000005532932
Heated Oxygen sensor 2 HeaterINFOID:0000000005532933
Crankshaft Position Sensor (POS)INFOID:0000000005532934
Refer to EC-798, "Component Inspection".
Camshaft Position Sensor (PHASE)INFOID:0000000005532935
Refer to EC-803, "Component Inspection".
Throttle Control MotorINFOID:0000000005532936
Fuel InjectorINFOID:0000000005532937
Fuel PumpINFOID:0000000005532938
Resistance [at 25 °C (77 °F)] 1.8 - 2.44 Ω
Resistance [at 25°C (77 °F)] 3.4 - 4.4 Ω
Resistance [at 25°C (77 °F)] Approximately 1 - 15 Ω
Resistance [at 10 - 60°C (50 - 140 °F)] 11.4 - 14.5 Ω
Resistance [at 25 °C (77 °F)] Approximately 0.2 - 5.0 Ω
Revision: January 20102010 Versa