Nissan Pathfinder (2007 year). Instruction — part 155
TROUBLE DIAGNOSIS
EC-107
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
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 2)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
Approximately 1.8V
Output voltage varies with air
fuel ratio.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
EC-108
TROUBLE DIAGNOSIS
2007 Pathfinder
21
22
23
W
LG
SB
Fuel injector No. 5
Fuel injector No. 3
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)
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 - 8.8V
25
P
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 - 1.0V
[Ignition switch: ON]
●
Engine: Stopped
[Engine is running]
●
Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
29
G
VIAS control solenoid valve
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Engine speed: Between 2,200 and 3,300
rpm
0 - 1.0V
32
W
EVAP control system pres-
sure sensor
[Ignition switch: ON]
Approximately 1.8 - 4.8V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC984C
SEC985C
PBIA8148J
TROUBLE DIAGNOSIS
EC-109
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
33
L
Camshaft position sensor
(PHASE) (Bank 1)
[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
34
BR
Intake air temperature sen-
sor
[Engine is running]
Approximately 0 - 4.8V
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 1.8V
Output voltage varies with air
fuel ratio.
36
W
Knock sensor
(Bank 2)
[Engine is running]
●
Idle speed
Approximately 2.5V
40
41
42
V
R
O
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
[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)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1039E
PBIB1040E
SEC984C
SEC985C
EC-110
TROUBLE DIAGNOSIS
2007 Pathfinder
45
R
EVAP canister purge volume
control solenoid valve
[Engine is running]
●
Idle speed
●
Accelerator pedal is 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)
BATTERY VOLTAGE
(11 - 14V)
47
L
Sensor power supply (Throt-
tle position sensor)
[Ignition switch: ON]
Approximately 5V
48
SB
Sensor power supply
(EVAP control system pres-
sure sensor)
[Ignition switch: ON]
Approximately 5V
49
P
Sensor power supply
(Refrigerant pressure sen-
sor/Battery current sensor)
[Ignition switch: ON]
Approximately 5V
50
W
Throttle position sensor 1
[Ignition switch: ON]
●
Engine: Stopped
●
Shift lever: D
●
Accelerator pedal: Fully released
More than 0.36V
[Ignition switch: ON]
●
Engine: Stopped
●
Shift lever: D
●
Accelerator pedal: Fully depressed
Less than 4.75V
51
P
Mass air flow sensor
[Engine is running]
●
Warm-up condition
●
Idle speed
0.9 - 1.2V
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,500 rpm
1.5 - 1.8V
55
G
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 1.0V
56
LG
A/F sensor 1 (Bank 1)
[Ignition switch: ON]
Approximately 2.2V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC990C
SEC991C
TROUBLE DIAGNOSIS
EC-111
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
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
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC986C
SEC987C
EC-112
TROUBLE DIAGNOSIS
2007 Pathfinder
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
79
80
81
P
GR
G
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 - 0.2V
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,500 rpm
0.1 - 0.4V
82
B
Sensor ground
(APP sensor 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
83
B
Sensor ground
(APP sensor 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
85
W
Data link connector
[Ignition switch: ON]
●
CONSULT-II or GST: disconnected
Approximately 5V - Battery volt-
age (11 - 14V)
86
P
CAN communication line
[Ignition switch: ON]
Approximately 1.1 - 2.3V
Output voltage varies with the
communication status.
90
L
Sensor power supply
(APP sensor 1)
[Ignition switch: ON]
Approximately 5V
91
G
Sensor power supply
(APP sensor 2)
[Ignition switch: ON]
Approximately 5V
94
L
CAN communication line
[Ignition switch: ON]
Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
98
GR
Accelerator pedal position
sensor 2
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully released
0.28 - 0.48V
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully depressed
More than 2.0
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEC986C
SEC987C
TROUBLE DIAGNOSIS
EC-113
C
D
E
F
G
H
I
J
K
L
M
A
EC
2007 Pathfinder
99
SB
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
101
LG
Stop lamp switch
[Ignition switch: OFF]
●
Brake pedal: Fully released
Approximately 0V
[Ignition switch: OFF]
●
Brake pedal: Slightly depressed
BATTERY VOLTAGE
(11 - 14V)
102
G
PNP switch
[Ignition switch: ON]
●
Shift lever: P or N
Approximately 0V
[Ignition switch: ON]
●
Except above position
BATTERY VOLTAGE
(11 - 14V)
104
O
Throttle control motor relay
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
0 - 1.0V
106
R
Accelerator pedal position
sensor 1
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully released
0.65 - 0.87V
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully depressed
More than 4.3V
107
Y
Fuel tank temperature sen-
sor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with fuel
tank temperature.
108
LG
ASCD brake switch
[Ignition switch: ON]
●
Brake pedal: Slightly depressed
Approximately 0V
[Ignition switch: ON]
●
Brake pedal: Fully released
BATTERY VOLTAGE
(11 - 14V)
109
W/R
Ignition switch
[Ignition switch: OFF]
0V
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
111
BR
ECM relay
(Self shut-off)
[Engine is running]
[Ignition switch: OFF]
●
For a few seconds after turning ignition
switch OFF
0 - 1.5V
[Ignition switch: OFF]
●
More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
EC-114
TROUBLE DIAGNOSIS
2007 Pathfinder
: 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
SC-5, "SPECIFIC GRAVITY CHECK"
.
CONSULT-II Function (ENGINE)
UBS00K4C
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
●
Diagnostic trouble codes
●
1st trip diagnostic trouble codes
●
Freeze frame data
●
1st trip freeze frame data
●
System readiness test (SRT) codes
●
Test values
113
V
Fuel pump relay
[Ignition switch: ON]
●
For 1 second after turning ignition switch
ON
[Engine is running]
0 - 1.5V
[Ignition switch: ON]
●
More than 1 second after turning ignition
switch ON
BATTERY VOLTAGE
(11 - 14V)
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 - 14V)
119
120
R
P
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
121
R/B
Power supply for ECM
(Back-up)
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
Diagnostic test mode
Function
Work support
This mode enables a technician to adjust some devices faster and more accurately by following the
indications on the CONSULT-II unit.
Self-diagnostic results
Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data
can be read and erased quickly.*
Data monitor
Input/Output data in the ECM can be read.
Data monitor (SPEC)
Input/Output of the specification for Basic fuel schedule, AFM, A/F feedback control value and the
other data monitor items can be read.
CAN diagnostic support
monitor
The results of transmit/receive diagnosis of CAN communication can be read.
Active test
Diagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
Function test
This mode is used to inform customers when their vehicle condition requires periodic maintenance.
DTC & SRT confirmation
The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
ECM part number
ECM part number can be read.
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