Nissan Pathfinder (2010 year). Manual — part 351
EC-900
< ECU DIAGNOSIS >
[VK56DE]
ECM
4
L/W
Throttle control motor (Close)
[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully released
0 - 14 V
5
L/B
Throttle control motor (Open)
[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully depressed
0 - 14 V
6
R
Heated oxygen sensor 2 heater
(bank 1)
[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
0 - 1.0 V
[Ignition switch: ON]
• Engine: Stopped
[Engine is running]
• Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14 V)
10
W
Intake valve timing control sole-
noid valve (bank 1)
[Engine is running]
•
Warm-up condition
• Idle speed
BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
•
Warm-up condition
• Engine speed: 2,000rpm
7 - 12 V
11
LG
Intake valve timing control sole-
noid valve (bank 2)
[Engine is running]
•
Warm-up condition
• Idle speed
BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
•
Warm-up condition
• Engine speed: 2,000rpm
7 - 12 V
12
P
Power steering pressure sensor
[Engine is running]
• Steering wheel: Being turned
0.5 - 4.5 V
[Engine is running]
• Steering wheel: Not being turned
0.4 - 0.8 V
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1104E
PBIB1105E
PBIB1790E
PBIB1790E
2010 Pathfinder
ECM
EC-901
< ECU DIAGNOSIS >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
13
G
Crankshaft position sensor
(POS)
[Engine is running]
•
Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on
rpm at idle
Approximately 10 V
[Engine is running]
• Engine speed: 2,000 rpm
Approximately 10 V
14
SB
Camshaft position sensor
(PHASE)
[Engine is running]
•
Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on
rpm at idle
1.0 - 4.0 V
[Engine is running]
• Engine speed: 2,000 rpm
1.0 - 4.0 V
15
W
Knock sensor (bank 1)
[Engine is running]
• Idle speed
Approximately 2.5 V
16
L
A/F sensor 1 (bank 2)
[Engine is running]
•
Warm-up condition
• Engine speed: 2,000 rpm
Approximately 1.8 V
Output voltage varies with air fuel
ratio.
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
2010 Pathfinder
EC-902
< ECU DIAGNOSIS >
[VK56DE]
ECM
21
22
23
44
L
V
G
L
Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 7
[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)
24
43
G
G
A/F sensor 1 heater (bank 2)
[Engine is running]
•
Warm-up condition
• Idle speed
(More than 140 seconds after starting
engine)
Approximately 2.9 - 8.8 V
25
P
Heated oxygen sensor 2 heater
(bank 2)
[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
0 - 1.0 V
[Ignition switch: ON]
• Engine: Stopped
[Engine is running]
• Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14 V)
32
W
EVAP control system pressure
sensor
[Ignition switch: ON]
Approximately 1.8 - 4.8 V
34
BR
Intake air temperature sensor
[Engine is running]
Approximately 0 - 4.8 V
Output voltage varies with intake
air temperature.
35
O
A/F sensor 1 (bank 1)
[Engine is running]
•
Warm-up condition
• Engine speed: 2,000 rpm
Approximately 1.8 V
Output voltage varies with air fuel
ratio.
36
W
Knock sensor (bank 2)
[Engine is running]
• Idle speed
Approximately 2.5 V
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC984C
SEC985C
PBIA8148J
2010 Pathfinder
ECM
EC-903
< ECU DIAGNOSIS >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
40
41
42
63
V
R
O
W
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
Fuel injector No. 8
[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)
45
R
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)
BATTERY VOLTAGE
(11 - 14 V)
46
60
61
62
LG
V
L
Y
Ignition signal No. 7
Ignition signal No. 5
Ignition signal No. 3
Ignition signal No. 1
[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
0.1 - 0.6 V
47
L
Sensor power supply
(Throttle position sensor)
[Ignition switch: ON]
Approximately 5 V
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC984C
SEC985C
SEC990C
SEC991C
SEC986C
SEC987C
2010 Pathfinder
EC-904
< ECU DIAGNOSIS >
[VK56DE]
ECM
48
SB
Sensor power supply
(EVAP control system pressure
sensor)
[Ignition switch: ON]
Approximately 5 V
49
P
Sensor power supply
(Refrigerant pressure sensor)
[Ignition switch: ON]
Approximately 5 V
50
W
Throttle position sensor 1
[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully released
More than 0.36 V
[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully depressed
Less than 4.75 V
51
P
Mass air flow sensor
[Engine is running]
•
Warm-up condition
• Idle speed
1.0 - 1.3 V
[Engine is running]
•
Warm-up condition
• Engine speed: 2,500 rpm
1.7 - 2.1 V
53
L
Intake valve timing control posi-
tion sensor (Bank 2)
[Engine is running]
•
Warm-up condition
• Idle speed
0 - 1.0 V
[Engine is running]
• Engine speed: 2,000 rpm
0 - 1.0 V
55
G
Heated oxygen sensor 2 (bank 1)
[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
56
W
A/F sensor 1 (bank 1)
[Ignition switch: ON]
Approximately 2.2 V
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB2046E
2010 Pathfinder
ECM
EC-905
< ECU DIAGNOSIS >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
65
79
80
81
GR
P
GR
G
Ignition signal No. 8
Ignition signal No. 6
Ignition signal No. 4
Ignition signal No. 2
[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
0.1 - 0.6 V
66
B
Sensor ground
(Throttle position sensor)
[Engine is running]
•
Warm-up condition
• Idle speed
Approximately 0 V
67
B
Sensor ground
[Engine is running]
•
Warm-up condition
• Idle speed
Approximately 0 V
68
G
Sensor power supply
(PSP sensor)
[Ignition switch: ON]
Approximately 5 V
69
R
Throttle position sensor 2
[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully released
Less than 4.75 V
[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully depressed
More than 0.36 V
70
BR
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
71
R
Battery current sensor
[Engine is running]
• Battery: Fully charged*
• Idle speed
Approximately 2.6 - 3.5 V
72
Y
Intake valve timing control posi-
tion sensor (Bank 1)
[Engine is running]
•
Warm-up condition
• Idle speed
0 -1.0 V
[Engine is running]
• Engine speed: 2,000rpm
0 - 1.0 V
73
Y
Engine coolant temperature sen-
sor
[Engine is running]
Approximately 0 - 4.8 V
Output voltage varies with engine
coolant temperature.
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC986C
SEC987C
PBIB2046E
2010 Pathfinder
EC-906
< ECU DIAGNOSIS >
[VK56DE]
ECM
74
SB
Heated oxygen sensor 2 (bank 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
75
P
A/F sensor 1 (bank 2)
[Ignition switch: ON]
Approximately 2.2 V
78
GR
Sensor ground
(Heated oxygen sensor 2)
[Engine is running]
•
Warm-up condition
• Idle speed
Approximately 0 V
82
B
Sensor ground
(APP sensor 1)
[Engine is running]
•
Warm-up condition
• Idle speed
Approximately 0 V
83
B
Sensor ground
(APP sensor 2)
[Engine is running]
•
Warm-up condition
• Idle speed
Approximately 0 V
85
W
Data link connector
—
—
86
P
CAN communication line
—
—
90
L
Sensor power supply
(APP sensor 1)
[Ignition switch: ON]
Approximately 5 V
91
G
Sensor power supply
(APP sensor 2)
[Ignition switch: ON]
Approximately 5 V
94
L
CAN communication line
—
—
98
GR
Accelerator pedal position sen-
sor 2
[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully released
0.28 - 0.48 V
[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully depressed
More than 2.0 V
99
SB
ASCD steering switch
[Ignition switch: ON]
• ASCD steering switch: OFF
Approximately 4 V
[Ignition switch: ON]
• MAIN switch: Pressed
Approximately 0V
[Ignition switch: ON]
• CANCEL switch: Pressed
Approximately 1 V
[Ignition switch: ON]
• RESUME/ACCELERATE switch:
Pressed
Approximately 3 V
[Ignition switch: ON]
• SET/COAST switch: Pressed
Approximately 2 V
101
LG
Stop lamp switch
[Ignition switch: OFF]
• Brake pedal: Fully released
Approximately 0 V
[Ignition switch: OFF]
• Brake pedal: Slightly depressed
BATTERY VOLTAGE
(11 - 14 V)
102
G
PNP signal
[Ignition switch: ON]
• Selector lever: P or N position
Approximately 0 V
[Ignition switch: ON]
• Selector lever: Except above position
BATTERY VOLTAGE
(11 - 14 V)
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
2010 Pathfinder
ECM
EC-907
< ECU DIAGNOSIS >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*:Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to
104
O
Throttle control motor relay
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON]
0 - 1.0 V
106
R
Accelerator pedal position sen-
sor 1
[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully released
0.65 - 0.87 V
[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully depressed
More than 4.3 V
107
Y
Fuel tank temperature sensor
[Engine is running]
Approximately 0 - 4.8 V
Output voltage varies with fuel
tank temperature.
108
LG
ASCD brake switch
[Ignition switch: ON]
• Brake pedal: Slightly depressed
Approximately 0 V
[Ignition switch: ON]
• Brake pedal: Fully released
BATTERY VOLTAGE
(11 - 14 V)
109
W/R
Ignition switch
[Ignition switch: OFF]
0 V
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
111
BR
ECM relay
(Self shut-off)
[Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF
0 - 1.5 V
[Ignition switch: OFF]
• More than a few seconds after turning ig-
nition switch OFF
BATTERY VOLTAGE
(11 - 14 V)
113
V
Fuel pump relay
[Ignition switch: ON]
• For 1 second after turning ignition switch
ON
[Engine is running]
0 - 1.5 V
[Ignition switch: ON]
• More than 1 second after turning ignition
switch ON
BATTERY VOLTAGE
(11 - 14 V)
115
116
B
GR
ECM ground
[Engine is running]
• Idle speed
Body ground
117
G
EVAP canister vent control valve
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
119
120
R
P
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
121
R/B
Power supply for ECM
(Back up)
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14 V)
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
2010 Pathfinder
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