Page 2465 of 4331
![NISSAN LATIO 2009 Service Repair Manual TROUBLE DIAGNOSIS
EC-1109
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
ECM Harness Connector Terminal Layout
INFOID:0000000004499944
ECM Terminal and Reference Value INFOID:00000 NISSAN LATIO 2009 Service Repair Manual TROUBLE DIAGNOSIS
EC-1109
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
ECM Harness Connector Terminal Layout
INFOID:0000000004499944
ECM Terminal and Reference Value INFOID:00000](/manual-img/5/57359/w960_57359-2464.png)
TROUBLE DIAGNOSIS
EC-1109
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
ECM Harness Connector Terminal Layout
INFOID:0000000004499944
ECM Terminal and Reference Value INFOID:0000000004499945
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
TERMI-
NAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
1 L Throttle control motor
(Open) [Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T, CVT), 1st (M/T)
• Accelerator pedal: Fully depressed Approximately 3.2V
2 SB Throttle contro
l motor power
supply [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
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 - 8.8V PBIA8150J
PBIA8148J
Page 2466 of 4331
![NISSAN LATIO 2009 Service Repair Manual EC-1110< SERVICE INFOMATION >
[MR TYPE 2]
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: NISSAN LATIO 2009 Service Repair Manual EC-1110< SERVICE INFOMATION >
[MR TYPE 2]
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:](/manual-img/5/57359/w960_57359-2465.png)
EC-1110< SERVICE INFOMATION >
[MR TYPE 2]
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 1.8V
5 G 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 10V
[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 rpm. BATTERY VOLTAGE
(11 - 14V)
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
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 - 5V
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm. 3 - 5V
TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage) PBIA8149J
PBIA8148J
PBIB0050E
PBIB0520E
PBIA8164J
PBIA8165J
Page 2467 of 4331
![NISSAN LATIO 2009 Service Repair Manual TROUBLE DIAGNOSIS
EC-1111
< SERVICE INFOMATION >
[MR TYPE 2] 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 - 14V)
[Ignition switch: ON] NISSAN LATIO 2009 Service Repair Manual TROUBLE DIAGNOSIS
EC-1111
< SERVICE INFOMATION >
[MR TYPE 2] 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 - 14V)
[Ignition switch: ON]](/manual-img/5/57359/w960_57359-2466.png)
TROUBLE DIAGNOSIS
EC-1111
< SERVICE INFOMATION >
[MR TYPE 2] 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 - 14V)
[Ignition switch: ON] 0 - 1.0V
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 - 0.3V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm. 0.2 - 0.5V
23 GR Fuel pump relay [Ignition switch: ON]
• For 1 second after turning ignition switch ON
[Engine is running] 0 - 1.0V
[Ignition switch: ON]
• More than 1 second after turning ignition switch ON BATTERY VOLTAGE
(11 - 14V)
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 - 14V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm BATTERY VOLTAGE
(11 - 14V)
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)
TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage) PBIA9265J
PBIA9266J
PBIB0529E
PBIA4943J
Page 2468 of 4331
Page 2469 of 4331
![NISSAN LATIO 2009 Service Repair Manual TROUBLE DIAGNOSIS
EC-1113
< SERVICE INFOMATION >
[MR TYPE 2] 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 th NISSAN LATIO 2009 Service Repair Manual TROUBLE DIAGNOSIS
EC-1113
< SERVICE INFOMATION >
[MR TYPE 2] 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 th](/manual-img/5/57359/w960_57359-2468.png)
TROUBLE DIAGNOSIS
EC-1113
< SERVICE INFOMATION >
[MR TYPE 2] 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 1.0V
51 O Sensor ground
(EVAP control system pres-
sure sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
52 LG Sensor ground
(Mass air flow sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
53 B A/F sensor 1 [Ignition switch: ON]Approximately 2.2V
55 O Sensor ground
(Intake air temperature sen-
sor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
59 O Sensor ground
(Heated oxygen sensor 2) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
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 4.0V
[Engine is running]
• Engine speed: 2,000 rpm Approximately 4.0V
62 R Sensor ground
[Crankshaft position sensor
(POS)] [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
63 BR Sensor ground
[Camshaft position sensor
(PHASE)] [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage) PBIB2998E
PBIB2999E
Page 2470 of 4331
![NISSAN LATIO 2009 Service Repair Manual EC-1114< SERVICE INFOMATION >
[MR TYPE 2]
TROUBLE DIAGNOSIS
65 G Camshaft position sensor
(PHASE) [Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on r NISSAN LATIO 2009 Service Repair Manual EC-1114< SERVICE INFOMATION >
[MR TYPE 2]
TROUBLE DIAGNOSIS
65 G Camshaft position sensor
(PHASE) [Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on r](/manual-img/5/57359/w960_57359-2469.png)
EC-1114< SERVICE INFOMATION >
[MR TYPE 2]
TROUBLE DIAGNOSIS
65 G Camshaft position sensor
(PHASE) [Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle. 1.0 - 2.0V
[Engine is running]
• Engine speed: 2,000 rpm. 1.0 - 2.0V
69 L Park/neutral position (PNP)
switch [Ignition switch: ON]
• Shift lever: P or N (A/T, CVT), Neutral (M/T) BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
• Except above Approximately 0V
72 V Sensor power supply
(Throttle position sensor) [Ignition switch: ON]
Approximately 5V
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 quick-
ly 7 - 10V
74 W Sensor power supply
(Refrigerant pressure
sensor) [Ignition switch: ON]
Approximately 5V
75 BR Sensor power supply
[Crankshaft position sensor
(POS)] [Ignition switch: ON]
Approximately 5V
76 W EVAP control system pres-
sure sensor power supply [Ignition switch: ON]
Approximately 5V
78 O Sensor power supply
[Camshaft position sensor
(PHASE)] [Ignition switch: ON]
Approximately 5V
83 P CAN communication line — —
84 L CAN communication line — —
88 LG DATA link connector — —
93 O Ignition switch [Ignition switch: OFF]
0V
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage) PBIB2986E
PBIB2987E
PBIA4937J
Page 2471 of 4331
![NISSAN LATIO 2009 Service Repair Manual EC
NP
O
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.) 94 R ASCD steering switch
[Ignition switch: ON]
• ASCD steering switch: OFF Approximately 4V
[Ignit NISSAN LATIO 2009 Service Repair Manual EC
NP
O
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.) 94 R ASCD steering switch
[Ignition switch: ON]
• ASCD steering switch: OFF Approximately 4V
[Ignit](/manual-img/5/57359/w960_57359-2470.png)
EC
NP
O
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.) 94 R ASCD steering switch
[Ignition switch: ON]
• ASCD steering switch: OFF Approximately 4V
[Ignition switch: ON]
• MAIN switch: Pressed Approximately 0V
[Ignition switch: ON]
• CANCEL switch: Pressed Approximately 1V
[Ignition switch: ON]
• RESUME/ACCELERATE switch: Pressed Approximately 3V
[Ignition switch: ON]
• SET/COAST switch: Pressed Approximately 2V
95 B Sensor ground
(ASCD steering switch) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
99 R Stop lamp switch [Ignition switch: OFF]
• Brake pedal: Fully released Approximately 0V
[Ignition switch: OFF]
• Brake pedal: Slightly depressed BATTERY VOLTAGE
(11 - 14V)
100 G ASCD brake switch [Ignition switch: ON]
• Brake pedal: Slightly depressed (A/T, CVT)
• Brake pedal and/or clutch pedal: Slightly de-
pressed (M/T) Approximately 0V
[Ignition switch: ON]
• Brake pedal: Fully released (A/T, CVT)
• Brake pedal and clutch pedal: Fully re-
leased (M/T) BATTTERY VOLTAGE
(11 - 14V)
102 SB Sensor power supply
(Accelerator pedal position
sensor 2) [Ignition switch: ON]
Approximately 5V
103 GR Accelerator pedal position
sensor 2 [Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released 0.3 - 0.6V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed 1.95 - 2.4V
104 Y Sensor ground
(Accelerator pedal position
sensor 2) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
105 G Power supply for ECM [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
106 P Sensor power supply
(Accelerator pedal position
sensor 1) [Ignition switch: ON]
Approximately 5V
108 B ECM ground [Engine is running]
• Idle speed Body ground
110 G Accelerator pedal position
sensor 1 [Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released 0.6 - 0.9V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed 3.9 - 4.7V
111 R Sensor ground
(Accelerator pedal position
sensor 1) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
Page 2472 of 4331