Nissan Pathfinder (2007 year). Instruction — part 154
TROUBLE DIAGNOSIS
EC-99
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
BBIA0577E
EC-100
TROUBLE DIAGNOSIS
2007 Pathfinder
PBIB2646E
TROUBLE DIAGNOSIS
EC-101
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
BBIA0581E
EC-102
TROUBLE DIAGNOSIS
2007 Pathfinder
Vacuum Hose Drawing
UBS00K48
Refer to
for Vacuum Control System.
PBIB2529E
TROUBLE DIAGNOSIS
EC-103
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
Circuit Diagram
UBS00K49
BBWA2356E
EC-104
TROUBLE DIAGNOSIS
2007 Pathfinder
BBWA2810E
TROUBLE DIAGNOSIS
EC-105
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
ECM Harness Connector Terminal Layout
UBS00K4A
ECM Terminals and Reference Value
UBS00K4B
PREPARATION
ECM located in the engine room passenger side behind reservoir
tank.
ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
MBIB0045E
BBIA0537E
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
1
BR
ECM ground
[Engine is running]
●
Idle speed
Body ground
2
G
A/F sensor 1 heater (Bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
(More than 140 seconds after starting
engine)
Approximately 2.9 - 8.8V
3
V
Throttle control motor relay
power supply
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
4
L/W
Throttle control motor (Close)
[Ignition switch: ON]
●
Engine: Stopped
●
Shift lever: D
●
Accelerator pedal: Fully released
0 - 14V
PBIA8148J
PBIB1104E
EC-106
TROUBLE DIAGNOSIS
2007 Pathfinder
5
L/B
Throttle control motor (Open)
[Ignition switch: ON]
●
Engine: Stopped
●
Shift lever: D
●
Accelerator pedal: Fully depressed
0 - 14V
6
R
Heated oxygen sensor 2
heater (Bank 2)
[Engine is running]
●
Engine speed is 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 - 1.0V
[Ignition switch: ON]
●
Engine: Stopped
[Engine is running]
●
Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
10
W
Intake valve timing control
solenoid valve (Bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,500 rpm
7 - 12V
11
LG
Intake valve timing control
solenoid valve (Bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,500 rpm
7 - 12V
12
P
Power steering pressure
sensor
[Engine is running]
●
Steering wheel: Being turned
0.5 - 4.5V
[Engine is running]
●
Steering wheel: Not being turned
0.4 - 0.8V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1105E
PBIB1790E
PBIB1790E
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