2009 NISSAN LATIO relay

EC-652< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0075 IVT CONTROL SOLENOID VALVE
Do not use ECM ground terminals when measuring in put/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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000045371091.
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake valve timing control solenoid valve (1) har- ness connector.
3. Turn ignition switch ON.
4. Check voltage between intake valve timing control solenoid valve terminal 1 and ground with CONSULT-III or tester.
OK or NG OK >> GO TO 3.
NG >> GO TO 2. 2.
DETECT MALFUNCTION PART
Check the following. TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition switch
OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning ignition switch OFF BATTERY VOLTAGE
(11 - 14V)
73 P Intake valve timing control
solenoid valve [Engine is running]
• Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
• Warm-up condition
• When revving engine up to 2,000 rpm quickly 7 - 10V
105 G Power supply for ECM [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V) PBIA4937J
PBIB3323E
Voltage: Battery voltage
SEF212S

DTC P0101 MAF SENSOR
EC-659
< SERVICE INFOMATION >
[MR TYPE 1] C
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Diagnosis Procedure
INFOID:00000000045371181.
INSPECTION START
Which malfunction (A or B) is duplicated?
A or B A >> GO TO 3.
B >> GO TO 2. 2.
CHECK INTAKE AIR LEAK
Check the following for connections.
• Air duct
• Vacuum hoses
• Intake air passage between air duct and intake manifold
OK or NG OK >> GO TO 3.
NG >> Reconnect the parts. 3.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body.
Refer to EC-632, " Ground Inspection " .
TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition switch
OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning ignition switch OFF BATTERY VOLTAGE
(11 - 14V)
45 G Mass air flow sensor [Engine is running]
• Warm-up condition
• Idle speed 0.8 - 1.1V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm 1.4 - 1.7V
52 LG Sensor ground
(Mass air flow sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
105 G Power supply for
ECM [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V) BBIA0698E

EC-666< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0102, P0103 MAF SENSOR
Diagnosis Procedure INFOID:00000000045371261.
INSPECTION START
Which malfunction (P0102 or P0103) is duplicated?
P0102 or P0103 P0102 >> GO TO 2.
P0103 >> GO TO 3. 2.
CHECK INTAKE SYSTEM
Check the following for connection.
• Air duct
• Vacuum hoses
• Intake air passage between air duct and intake manifold
OK or NG OK >> GO TO 3.
NG >> Reconnect the parts. 3.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body.
Refer to EC-632, " Ground Inspection " .
TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning igni- tion switch OFF BATTERY VOLTAGE
(11 - 14V)
45 G Mass air flow sensor [Engine is running]
• Warm-up condition
• Idle speed 0.8 - 1.1V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm 1.4 - 1.7V
52 LG Sensor ground
(Mass air flow sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
105 G Power supply for ECM [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V) BBIA0698E

DTC P0443 EVAP CANISTE
R PURGE VOLUME CONTROL SOLENOID VALVE
EC-807
< SERVICE INFOMATION >
[MR TYPE 1] C
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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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000045372971.
CHECK EVAP CANISTER PURG E VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve (1) harness connector.
- EVAP service port (2)
- : Vehicle front
3. Turn ignition switch ON. TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
9 P EVAP canister purge volume
control solenoid valve [Engine is running]
• Idle speed
• Accelerator pedal: Not depressed even slightly, after engine starting. BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
• Engine speed: About 2,000 rpm (More
than 100 seconds after starting engine) Approximately 10V
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition switch OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning ig- nition switch OFF BATTERY VOLTAGE
(11 - 14V)
105 G Power supply for ECM [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V) PBIB0050E
PBIB0520E
BBIA0703E

EC-814< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0444, P0445 EVAP CANISTER
PURGE VOLUME CONTROL SOLENOID
VALVE
Do not use ECM ground terminals when measuring in put/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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000045373051.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve (1) harness connector.
- EVAP canister port (2)
3. Turn ignition switch ON. TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
9 P EVAP canister purge volume
control solenoid valve [Engine is running]
• Idle speed
• Accelerator pedal: Not depressed even
slightly, after engine starting. BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
• Engine speed: About 2,000 rpm (More than 100 seconds after starting engine) Approximately 10V
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning igni- tion switch OFF BATTERY VOLTAGE
(11 - 14V)
105 G Power supply for ECM [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V) PBIB0050E
PBIB0520E
BBIA0693E

DTC P0447 EVAP CANISTER
VENT CONTROL VALVE
EC-819
< SERVICE INFOMATION >
[MR TYPE 1] C
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Diagnosis Procedure
INFOID:00000000045373131.
INSPECTION START
1. Do you have CONSULT-III?
Yes or No Yes >> GO TO 2.
No >> GO TO 3. 2.
CHECK EVAP CANISTER VENT CONTROL VALVE CIRCUIT
With CONSULT-III
1. Turn ignition switch OFF and then turn ON.
2. Select “VENT CONTROL/V” in “A CTIVE TEST” mode with CONSULT-III.
3. Touch “ON/OFF” on CONSULT-III screen.
4. Check for operating sound of the valve.
OK or NG OK >> GO TO 8.
NG >> GO TO 3. 3.
CHECK EVAP CANISTER VENT CONT ROL VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister vent control valve (3) harness con-
nector.
- EVAP control system pressure sensor (1)
- EVAP canister (2)
3. Turn ignition switch ON. TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
28 W EVAP canister vent control
valve [Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition switch OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning igni-
tion switch OFF BATTERY VOLTAGE
(11 - 14V)
105 G Power supply for ECM [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V) Clicking noise should be heard.
BBIA0693E

EC-826< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0448 EVAP CANISTER VENT CONTROL VALVE
Diagnosis Procedure INFOID:00000000045373201.
CHECK RUBBER TUBE
1. Turn ignition switch OFF.
2. Disconnect rubber tube connected to EVAP canister vent control valve (3).
3. Check the rubber tube for clogging.
- EVAP control system pressure sensor (1)
- EVAP canister (2)
OK or NG OK >> GO TO 2.
NG >> Clean rubber tube using an air blower. 2.
CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-827, " Component Inspection " .
OK or NG OK >> GO TO 3.
NG >> Replace EVAP canister vent control valve. 3.
CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve attached.
2. Does water drain from the EVAP canister.
Yes or No Yes >> GO TO 4.
No >> GO TO 6. 4.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 1.9 kg (4.2 lb).
OK or NG TERMI-
NAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
28 W EVAP canister vent control
valve [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning igni- tion switch OFF BATTERY VOLTAGE
(11 - 14V)
105 G Power supply for ECM [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V) BBIA0693E
PBIB1213E

EC-862< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0461 FUEL LEVEL SENSOR
DTC P0461 FUEL LEVEL SENSOR
Component Description INFOID:0000000004537354
The fuel level sensor (3) is mounted in the fuel level sensor unit. The
sensor detects a fuel level in the fuel tank and transmits a signal to
the combination meter. The combination meter sends the fuel level
sensor signal to the ECM through CAN communication line.
It consists of two parts, one is mechanical float and the other is vari-
able resistor. Fuel level sensor output voltage changes depending on
the movement of the fuel mechanical float.
• Fuel level sensor unit and fuel pump (1)
• Fuel pressure regulator (2)
• Fuel tank temperature sensor (4)
On Board Diagn osis Logic INFOID:0000000004537355
NOTE:
• If DTC P0461 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-633 .
• If DTC P0461 is displayed with DT C U1010, first perform the trouble diagnosis for DTC U1010. Refer
to EC-635 .
• This diagnosis detects the fuel gauge malfunction of the gauge not moving even after a long distance has
been driven.Driving long distances naturally affect fuel gauge level.
Overall Function Check INFOID:0000000004537356
Use this procedure to check the overall function of the f uel level sensor function. During this check, a 1st trip
DTC might not be confirmed.
WARNING:
When performing following procedure, be sure to observe the handling of the fuel.
Refer to FL-4 .
TESTING CONDITION:
Before starting overall function check, preparation of draining fuel and refilling fuel is required.
WITH CONSULT-III
NOTE:
Start from step 10, if it is possibl e to confirm that the fuel cannot be drained by 30 (7-7/8 US gal, 6-5/
8 Imp gal) in advance.
1. Prepare a fuel container and a spare hose.
2. Release fuel pressure from fuel line, refer to EC-574, " Fuel Pressure Check " .
3. Remove the fuel feed hose on the fuel level sensor unit.
4. Connect a spare fuel hose where the fuel feed hose was removed.
5. Turn ignition switch OFF and wait at least 10 seconds then turn ON.
6. Select “FUEL LEVEL SE” in “DAT A MONITOR” mode with CONSULT-III.
7. Check “FUEL LEVEL SE” output voltage and note it.
8. Select “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT-III.
9. Touch “ON” and drain fuel approximately 30 (7-7/8 US gal, 6-5/8 Imp gal) and stop it.
10. Check “FUEL LEVEL SE” output voltage and note it. BBIA0704E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0461
0461 Fuel level sensor circuit
range/performance The output signal of the fuel level sensor does
not change within the specified range even
though the vehicle has been driven a long dis-
tance. • Harness or connectors
(CAN communication line is open or
shorted)
• Harness or connectors (Fuel level sensor circuit is open or short-
ed)
• Combination meter
• Fuel level sensor