2011 NISSAN LATIO ignition

EC-592
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
Symptom Matrix Chart
INFOID:0000000006341733
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 11232 22 3 2EC-1014
Fuel pressure regulator system 334444444 4 EC-582
Fuel injector circuit11232 22 2EC-1009
Evaporative emission system 334444444 4 EC-526
Air Positive crankcase ventilation sys-
tem 334444444 41
EC-538
Incorrect idle speed adjustment 1 1 1 1 1EC-574
Electric throttle control actuator 112332222 2 2 EC-952,
EC-963
IgnitionIncorrect ignition timing adjustment33111 11 1EC-574
Ignition circuit 11222 22 2EC-1019
Main power supply and ground circuit 22333 33 23 EC-633
Mass air flow sensor circuit
1
12 2
222 2 EC-664,
EC-672
Engine coolant temperature sensor circuit
333
EC-683
,
EC-686
,
EC-696
Air fuel ratio (A/F) sensor 1 circuit EC-704
,
EC-710
,
EC-716
,
EC-750
,
EC-989
Throttle position sensor circuit
22EC-691
,
EC-778
,
EC-921
,
EC-923
,
EC-977
Accelerator pedal position sensor circuit 3 2 1 EC-898
,
EC-965
,
EC-970
,
EC-982
Knock sensor circuit 23EC-789
Crankshaft position sensor (POS) circuit 2 2 EC-793
Revision: May 20102011 Versa

EC-596
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
Engine Control Comp onent Parts Location
INFOID:0000000006341734
1. Ignition coil (with power transistor)
and spark plug 2. Intake valve timing control solenoid
valve 3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake air temperature sensor) 11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built-in throttle position sensor,
throttle control motor)
13. EVAP canister purge volume control solenoid valve
PBIB3261E
Revision: May 2010 2011 Versa

EC-598
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
: Vehicle front
1. Intake valve timing control solenoid valve 2. Knock sensor
3. IPDM E/R
4. Fuel pump fuse (15 A) 5. Fuel level sensor unit and fuel pump
harness connector (view with in-
spection hole cover removed) 6. Fuel level sensor unit and fuel pump
7. Fuel pressure regulator 8. Fuel level sensor9. Fuel tank temperature sensor
10. Ignition coil (with power transistor) and spark plug 11. Fuel injector
BBIA0725E
Revision: May 2010
2011 Versa

TROUBLE DIAGNOSISEC-605
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
ECM Harness Connector Terminal LayoutINFOID:0000000006341737
ECM Terminal and Reference ValueINFOID:0000000006341738
PREPARATION
1. ECM (1) is located in the engine room left side near battery.
• : Vehicle front
ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION:
Do not use ECM ground terminals wh en measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground ot her than ECM terminals, such as the ground.
PBIA9221J
PBIB2959E
Te r m i -
nal No. Wire
color Item
Condition Data (DC Voltage)
1L Throttle control motor
(Open) [Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T, CVT), 1st (M/T)
• Accelerator pedal: Fully depressed Approximately 3.2 V
2SB Throttle contro
l motor power
supply [Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
3 G A/F sensor 1 heater [Engine is running]
•
Warm-up condition
• Idle speed (More than 140 seconds after starting en-
gine) Approximately 2.9 - 8.8 V
PBIA8150J
PBIA8148J
Revision: May 2010
2011 Versa

EC-606
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
4 P Throttle contro
l motor (Close)[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T, CVT), 1st (M/T)
• Accelerator pedal: Fully released Approximately 1.8 V
5G Heated oxygen sensor 2
heater [Engine is running]
• Engine speed: 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. Approximately 10 V
[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 rpm. BATTERY VOLTAGE
(11 - 14 V)
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
10 11 B
B
ECM ground [Engine is running]
• Idle speed
Body ground
13 L Tachometer signal [Engine is running]
•
Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending on rpm
at idle. 3 - 5 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm. 3 - 5 V
Te r m i -
nal No. Wire
color Item
Condition Data (DC Voltage)
PBIA8149J
PBIA8148J
PBIB0050E
PBIB0520E
PBIA8164J
PBIA8165J
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISEC-607
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
15 Y Throttle control motor relay
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON] 0 - 1.0 V
17
18
21
22 R
LG
G
SB Ignition signal No. 1
Ignition signal No. 2
Ignition signal No. 4
Ignition signal No. 3 [Engine is running]
•
Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle. 0 - 0.3 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm. 0.2 - 0.5 V
23 GR Fuel pump relay [Ignition switch: ON]
• For 1 second after turning ignition switch
ON
[Engine is running] 0 - 1.0 V
[Ignition switch: ON]
• More than 1 second after turning ignition switch ON BATTERY VOLTAGE
(11 - 14 V)
25
29
30
31 V
Y
O L Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1 [Engine is running]
•
Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending on rpm
at idle. BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm BATTERY VOLTAGE
(11 - 14 V)
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)
Te r m i -
nal No. Wire
color Item
Condition Data (DC Voltage)
PBIA9265J
PBIA9266J
PBIB0529E
PBIA4943J
Revision: May 2010 2011 Versa

EC-608
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
33 LG Throttle position sensor 1[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T, CVT), 1st (M/T)
• Accelerator pedal: Fully released
More than 0.36 V
[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T, CVT), 1st (M/T)
• Accelerator pedal: Fully depressed Less than 4.75 V
34 O Throttle position sensor 2 [Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T, CVT), 1st (M/T)
• Accelerator pedal: Fully released
Less than 4.75 V
[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T, CVT), 1st (M/T)
• Accelerator pedal: Fully depressed More than 0.36 V
36 Y Sensor ground
(Throttle position sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
37 W Knock sensor [Engine is running]
• Idle speed Approximately 2.5 V
38 P Engine coolant temperature
sensor [Engine is running] Approximately 0 - 4.8 V
Output voltage varies with en- gine coolant temperature.
40 — Sensor ground
(Knock sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
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
42 V EVAP control system pres-
sure sensor [Ignition switch: ON]
Approximately 1.8 - 4.8 V
43 P Fuel tank temperature sen-
sor [Engine is running] Approximately 0 - 4.8 V
Output voltage varies with fuel
tank temperature
44 B Sensor ground
(Engine coolant temperature
sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 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
46 V Intake air temperature
sensor [Engine is running] Approximately 0 - 4.8 V
Output voltage varies with intake air temperature.
48 BR Sensor ground
(Refrigerant pressure sen-
sor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
49 W A/F sensor 1 [Engine is running]
• Warm-up condition
• E

ngine speed: 2,000 rpm Approximately 1.8 V
Output voltage varies with air fuel ratio.
Te r m i -
nal No. Wire
color Item
Condition Data (DC Voltage)
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISEC-609
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
50 W Heated oxygen sensor 2 [Engine is running]
• Revving engine from idle to 3,000 rpm
quickly 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. 0 - Approximately 1.0 V
51 O Sensor ground
(EVAP control system pres-
sure sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
52 LG Sensor ground
(Mass air flow sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
53 B A/F sensor 1 [Ignition switch: ON] Approximately 2.2 V
55 O Sensor ground
(Intake air temperature sen-
sor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
59 O Sensor ground
(Heated oxygen sensor 2) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
61 W Crankshaft position sensor
(POS) [Engine is running]
•
Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending on rpm
at idle. Approximately 4.0 V
[Engine is running]
• Engine speed: 2,000 rpm Approximately 4.0 V
62 R Sensor ground
[Crankshaft position sensor
(POS)] [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
63 BR Sensor ground
[Camshaft position sensor
(PHASE)] [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
Te r m i -
nal No. Wire
color Item
Condition Data (DC Voltage)
PBIB2998E
PBIB2999E
Revision: May 2010 2011 Versa