2009 NISSAN LATIO ignition

YES >> GO TO 2.
NO >> GO TO 4. BASIC INSPECTION : Special Repair Requirement " .
Which is displayed on CONSULT-III screen? OK >> INSPECTION END
NG >> GO TO 3. P0455 >> Go to
EC-330, " Diagnosis Procedure " .
P0442 >> Go to EC-285, " Diagnosis Procedure " .
How to Set SRT Code " before driving
vehicle.
1. Start engine.
2. Drive vehicle according to DRIVING PATTERN.
3. Stop vehicle.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Check 1st trip DTC.
Is 1st trip DTC detected? YES-1 >> P0455: Go to
EC-330, " Diagnosis Procedure " .
YES-2 >> P0442: Go to EC-285, " Diagnosis Procedure " .
YES-3 >> P0441: Go to EC-280, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:0000000004780204

P0455 EVAP CONTROL SYSTEM
EC-331
< COMPONENT DIAGNOSIS >
[HR16DE] C
D E
F
G H
I
J
K L
M A EC
NP
O
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal? YES >> GO TO 2.
NO >> Replace with genuine NISSAN fuel filler cap. 2.
CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
Is the inspection result normal? YES >> GO TO 3.
NO >> Open fuel filler cap, then clean cap and fuel fi ller neck threads using air blower. Then retighten
until ratcheting sound is heard. 3.
CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4. 4.
CHECK FUEL TANK VACUUM RELIEF VALVE
Refer to EC-333, " Component Inspection (Fuel filler cap) " .
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace fuel filler cap with a genuine one. 5.
CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connection or
disconnection.
Refer to EC-74, " System Description " .
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or reconnect the hose. 6.
CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 7. 7.
CHECK DRAIN FILTER
Refer to EC-334, " Component Inspection (Drain filter) " .
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace drain filter. 8.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly.
Refer to EC-502, " Exploded View " .
• EVAP canister vent control valve. Refer to EC-304, " Component Inspection " . SEF915U

P0455 EVAP CONTROL SYSTEM
EC-333
< COMPONENT DIAGNOSIS >
[HR16DE] C
D E
F
G H
I
J
K L
M A EC
NP
O
NO >> Replace EVAP canister purge volume control solenoid valve. 15.
CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-244, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 16.
NO >> Replace fuel level sensor unit. 16.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-314, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 17.
NO >> Replace EVAP control system pressure sensor. 17.
CHECK EVAP/ORVR LINE
Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kink, looseness and improper con-
nection. For location, refer to EC-450, " Description " .
Is the inspection result normal? YES >> GO TO 18.
NO >> Repair or replace hoses and tubes. 18.
CHECK RECIRCULATION LINE
Check recirculation line between fuel filler tube and fuel tank for clogging, kink, cracks, looseness and
improper connection.
Is the inspection result normal? YES >> GO TO 19.
NO >> Repair or replace hose, tube or fuel filler tube. 19.
CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-453, " Component Inspection (Refueling EVAP vapor cut valve) " .
Is the inspection result normal? YES >> GO TO 20.
NO >> Replace refueling EVAP vapor cut valve with fuel tank. 20.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " .
>> INSPECTION END
Component Inspection (Fuel filler cap) INFOID:00000000048031171.
CHECK FUEL FILLER CAP
1. Turn ignition switch OFF.
2. Remove fuel filler cap.
3. Wipe clean valve housing. SEF445Y

Inspection " .
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.
11. Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).
12. Check “FUEL LEVEL SE” output voltage and note it.
13. Confirm whether the voltage changes more than 0.03 V during step 7 to 10 and 10 to 12.
Is the inspection result normal? YES >> INSPECTION END
NO >> Go to EC-344, " Diagnosis Procedure " .
Inspection " .
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 ON.
6. Drain fuel by 30 (7-7/8 US gal, 6-5/8 Imp gal) from the fuel tank using proper equipment.
7. Confirm that the fuel gauge indication varies.
8. Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).
9. Confirm that the fuel gauge indication varies.
Is the inspection result normal? YES >> INSPECTION END
NO >> Go to EC-344, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004780216Trouble Diagnosis " .
Is the inspection result normal? YES >> GO TO 2.
NO >> Refer to DI-13, " Trouble Diagnosis "
Diagnosis Procedure " .
>> INSPECTION END

EC
NP
O
P0603 ECM POWER SUPPLY
Description INFOID:0000000004780234
ECM has the memory function of the DTC memory, the air-fuel ratio
feedback compensation value memory, the idle air volume learning
value memory, etc. even when the ignition switch is turned ON.
DTC Logic INFOID:0000000004780235
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE YES >> Go to
EC-353, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:0000000004780236Diagnosis Description " .
3. Perform DTC CONFIRMATION PROCEDURE. Refer to EC-353, " DTC Logic " .
Is the 1st trip DTC P0603 displayed again? YES >> GO TO 2.
NO >> INSPECTION END ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-
ment " .

P0605 ECM
EC-355
< COMPONENT DIAGNOSIS >
[HR16DE] C
D E
F
G H
I
J
K L
M A EC
NP
O
P0605 ECM
Description INFOID:0000000004780237
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
DTC Logic INFOID:0000000004780238
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE 1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2. 2.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
1. Turn ignition switch ON.
2. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to
EC-356, " Diagnosis Procedure " .
NO >> GO TO 3. 3.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B
1. Turn ignition switch ON and wait at least 1 second.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to
EC-356, " Diagnosis Procedure " .
NO >> GO TO 4. 4.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Repeat step 2 for 32 times.
4. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to
EC-356, " Diagnosis Procedure " .
NO >> INSPECTION END PBIA9222J
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0605 Engine control module A) ECM calculation function is malfunctioning.
• ECM
B) ECM EEP-ROM system is malfunctioning.
C) ECM self shut-off function is malfunctioning.

EC
NP
O
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (56 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to CO-7, " Troubleshooting Chart " .
>> INSPECTION END

EC-372< COMPONENT DIAGNOSIS >
[HR16DE]
P1225 TP SENSOR
P1225 TP SENSOR
Description INFOID:0000000004780253
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometer which transform the throttle valve position into
output voltage, and emit the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and controls the throttle valve opening angle in response to
driving conditions via the throttle control motor.
DTC Logic INFOID:0000000004780254
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE 1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2. 2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to
EC-372, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:00000000047802551.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct. PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1225 Closed throttle position
learning performance Closed throttle position learning value is excessively
low. • Electric throttle control actuator
(TP sensor 1 and 2)