2010 NISSAN LATIO relay

EC-622
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
MASS AIRFLOW• Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
1.0 - 4.0 g·m/s
2,500 rpm 2.0 - 10.0 g·m/s
PURG VOL C/V • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting)
0%
2,000 rpm 0 - 50%
INT/V TIM (B1) • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
−5 ° - 5 °CA
When revving engine up to 2,000 rpm
quickly Approx. 0
° - 40 °CA
INT/V SOL (B1) • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
0% - 2%
When revving engine up to 2,000 rpm
quickly Approx. 0% - 90%
AIR COND RLY • Engine: After warming up, idle the
engine Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates) ON
FUEL PUMP RLY • For 1 second after turning ignition switch ON
• Engine running or cranking
ON
• Except above conditions OFF
VENT CONT/V • Ignition switch: ON OFF
THRTL RELAY • Ignition switch: ON ON
COOLING FAN • Engine: After warming up, idle the
engine
• Air conditioner switch: OFF Engine coolant temperature: 97
°C
(207 °F) or less OFF
Engine coolant temperature: Between
98 °C (208 °F) and 99 °C (210 °F) LOW
Engine coolant temperature: 100 °C
(212 °F) or more HIGH
HO2S2 HTR (B1) • Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and
at idle for 1 minute under no load ON
• Engine speed: Above 3,600 rpm OFF
I/P PULLY SPD • Vehicle speed: More than 20 km/h (12 MPH) Almost the same speed as the
tachometer indication
VEHICLE SPEED • Turn drive wheels and compare CONSULT-III value with the speedometer
indication. Alm
os
t the same speed as the
speedometer indication
TRVL AFTER MIL • Ignition switch: ON Vehicle has traveled after MIL has
turned ON.0 - 65,535 km
(0 - 40,723 mile)
A/F S1 HTR (B1) • Engine: After warming up, idle the engine
(More than 140 seconds after starting engine.) 4 - 100%
AC PRESS SEN • Engine: Idle
• Air conditioner switch: ON (Compressor operates) 1.0 - 4.0 V
VHCL SPEED SE • Turn drive wheels and compare speedometer indication with the CONSULT-
III value. Almost the same speed as the
speedometer indication
SET VHCL SPD • Engine: Ru nningASCD: Operating The preset vehicle speed is
displayed.
Monitor item
Condition Specification
Revision: January 20102010 Versa

EC-634
< SERVICE INFORMATION >[MR18DE]
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000005532431
1.INSPECTION START
Start engine.
Is engine running?
Ye s o r N o
Ye s > > G O T O 8 .
No >> GO TO 2.
2.CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF and then ON.
2. Check voltage between ECM terminal 93 and ground with CON- SULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M69, E7
• 10 A fuse
• Harness for open or short between ECM and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body. Refer to EC-638, "
Ground Inspection".
TER-
MI-
NAL
NO. WIRE
COLOR ITEM
CONDITION DATA (DC Voltage)
10 11 B
B
ECM ground
[Engine is running]
• Idle speed Body ground
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition switch
OFF 0 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning ignition switch OFF BATTERY VOLTAGE
(11 - 14 V)
93 O Ignition switch [Ignition switch: OFF]
0 V
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
105 G Power supply for
ECM [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
108 B ECM ground [Engine is running]
• Idle speed
Body ground
Voltage: Battery voltage
PBIA9561J
Revision: January 20102010 Versa

DTC P0075 IVT CONTROL SOLENOID VALVEEC-661
< SERVICE INFORMATION > [MR18DE]
C
D
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F
G H
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K L
M A
EC
NP
O
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 ProcedureINFOID:0000000005532476
1.CHECK INTAKE VALVE TIMING CONTROL SO LENOID 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 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning ignition switch OFF BATTERY VOLTAGE
(11 - 14 V)
73 P Intake valve timing control
solenoid valve [Engine is running]
•
Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• When revving engine up to 2,000 rpm quickly 7 - 10 V
105 G Power supply for ECM [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
PBIA4937J
PBIB3323E
Voltage: Battery voltage
SEF212S
Revision: January 20102010 Versa

EC-668
< SERVICE INFORMATION >[MR18DE]
DTC P0101 MAF SENSOR
Diagnosis Procedure
INFOID:0000000005532485
1.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-638, "
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 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning ignition switch OFF BATTERY VOLTAGE
(11 - 14 V)
45 G Mass air flow sensor [Engine is running]
•
Warm-up condition
• Idle speed 0.9 - 1.2 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm 1.5 - 1.8 V
52 LG Sensor ground
(Mass air flow sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
105 G Power supply for
ECM
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
BBIA0698E
Revision: January 20102010 Versa

DTC P0102, P0103 MAF SENSOREC-675
< SERVICE INFORMATION > [MR18DE]
C
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G H
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M A
EC
NP
O
Diagnosis ProcedureINFOID:0000000005532493
1.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-638, "
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 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning ignition switch OFF BATTERY VOLTAGE
(11 - 14 V)
45 G Mass air flow sensor [Engine is running]
•
Warm-up condition
• Idle speed 0.9 - 1.2 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm 1.5 - 1.8 V
52 LG Sensor ground
(Mass air flow sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
105 G Power supply for
ECM
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
BBIA0698E
Revision: January 20102010 Versa

EC-826
< SERVICE INFORMATION >[MR18DE]
DTC P0443 EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
Do not use ECM ground terminals when measuring input/output voltage. Doi ng 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 ProcedureINFOID:0000000005532672
1.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 service port (2)
- : Vehicle front
3. Turn ignition switch ON.
TERMI-
NAL
NO. WIRE
COLOR ITEM
CONDITION DATA (DC Voltage)
9P EVAP canister purge volume
control solenoid valve [Engine is running]
• Idle speed
• Accelerator pedal: Not depressed even
slightly, after engine starting. BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Engine speed: About 2,000 rpm (More than 100 seconds after starting engine) Approximately 10 V
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF 0 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning ig- nition switch OFF BATTERY VOLTAGE
(11 - 14 V)
105 G Power supply for ECM [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
PBIB0050E
PBIB0520E
BBIA0703E
Revision: January 20102010 Versa

DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-833
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
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 ProcedureINFOID:0000000005532680
1.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.
TERMI-
NAL
NO. WIRE
COLOR ITEM
CONDITION DATA (DC Voltage)
9P EVAP canister purge volume
control solenoid valve [Engine is running]
• Idle speed
• Accelerator pedal: Not depressed even
slightly, after engine starting. BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Engine speed: About 2,000 rpm (More than 100 seconds after starting engine) Approximately 10 V
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF 0 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning ig- nition switch OFF BATTERY VOLTAGE
(11 - 14 V)
105 G Power supply for ECM [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
PBIB0050E
PBIB0520E
BBIA0693E
Revision: January 20102010 Versa

EC-838
< SERVICE INFORMATION >[MR18DE]
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
Diagnosis Procedure
INFOID:0000000005532688
1.INSPECTION START
1. Do you have CONSULT-III?
Ye s o r N o
Ye s > > G O T O 2 .
No >> GO TO 3.
2.CHECK EVAP CANISTER VE NT CONTROL VALVE CIRCUIT
With CONSULT-III
1. Turn ignition switch OFF and then turn ON.
2. Select “VENT CONTROL/V” in “ACTIVE 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 - 14 V)
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF 0 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning igni- tion switch OFF BATTERY VOLTAGE
(11 - 14 V)
105 G Power supply for ECM [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
Clicking noise should be heard.
BBIA0693E
Revision: January 20102010 Versa