Nissan Pathfinder (2009 year). Manual - part 302
EC-430
< ECU DIAGNOSIS >
[VQ40DE]
ECM
60
61
62
SB
L
Y
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 - 0.2V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm
0.1 - 0.4V
66
B
Sensor ground
(Throttle position sensor)
[Engine is running]
• Warm-up condition
• Idle speed
Approximately 0V
67
B
Sensor ground
[Engine is running]
• Warm-up condition
• Idle speed
Approximately 0V
68
G
Sensor power supply
(Power steering pressure
sensor)
[Ignition switch: ON]
Approximately 5V
69
R
Throttle position sensor 2
[Ignition switch: ON]
• Engine: Stopped
• Shift lever: D
• Accelerator pedal: Fully released
Less than 4.75V
[Ignition switch: ON]
• Engine: Stopped
• Shift lever: D
• Accelerator pedal: Fully depressed
More than 0.36V
70
BR
Refrigerant pressure sensor
[Engine is running]
• Warm-up condition
• Both A/C switch and blower switch: ON
(Compressor operates)
1.0 - 4.0V
71
R
Battery current sensor
[Engine is running]
• Battery: Fully charged*
• Idle speed
Approximately 2.6 - 3.5V
73
Y
Engine coolant temperature
sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with engine
coolant temperature.
74
W
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 1.0V
75
P
A/F sensor 1 (Bank 2)
[Ignition switch: ON]
Approximately 2.2V
78
GR
Sensor ground
(Heated oxygen sensor 2)
[Engine is running]
• Warm-up condition
• Idle speed
Approximately 0V
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC986C
SEC987C
2009 Pathfinder