Nissan Pathfinder (2006 year). Instruction — part 155
TROUBLE DIAGNOSIS
EC-99
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
PBIB2646E
EC-100
TROUBLE DIAGNOSIS
2006 Pathfinder
BBIA0581E
TROUBLE DIAGNOSIS
EC-101
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
Vacuum Hose Drawing
UBS00K48
Refer to
PBIB2529E
EC-102
TROUBLE DIAGNOSIS
2006 Pathfinder
Circuit Diagram
UBS00K49
BBWA2356E
TROUBLE DIAGNOSIS
EC-103
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
BBWA2357E
EC-104
TROUBLE DIAGNOSIS
2006 Pathfinder
ECM Harness Connector Terminal Layout
UBS00K4A
ECM Terminals and Reference Value
UBS00K4B
PREPARATION
1.
ECM located in the engine room passenger side behind reser-
voir tank.
2.
Remove ECM harness connector.
3.
When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown in the figure.
4.
Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.
●
Use extreme care not to touch 2 pins at one time.
●
Data is for comparison and may not be exact.
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
PBIB1512E
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
Approximately 5V
PBIB1584E
TROUBLE DIAGNOSIS
EC-105
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
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
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
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1104E
PBIB1105E
PBIB1790E
PBIB1790E
EC-106
TROUBLE DIAGNOSIS
2006 Pathfinder
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
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 10V
[Engine is running]
●
Engine speed: 2,000 rpm
Approximately 10V
14
Y
Camshaft position sensor
(PHASE) (Bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle
1.0 - 4.0V
[Engine is running]
●
Engine speed: 2,000 rpm
1.0 - 4.0V
15
W
Knock sensor
(Bank 1)
[Engine is running]
●
Idle speed
Approximately 2.5V
16
BR
A/F sensor 1 (Bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 3.1V
35
O
Approximately 2.6V
56
LG
Approximately 2.3V
75
P
Approximately 2.3V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
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