Nissan Frontier D22. Manual — part 248
TROUBLE DIAGNOSIS
EC-95
[KA24DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
44
48
PU
PU
Camshaft position
sensor (Reference
signal)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
0.2 - 0.5V
[Engine is running]
●
Engine speed is 2,000 rpm
0 - 0.5V
46
OR/B
Fuel level sensor
[Ignition switch: ON]
Approximately 0 - 4.8V
Output voltage varies with fuel
level.
47
L
Crankshaft position
sensor (OBD)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
Approximately 0V
[Engine is running]
●
Engine speed is 2,000 rpm
Approximately 0V
49
LG
Camshaft position
sensor (Position sig-
nal)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
Approximately 2.6V
[Engine is running]
●
Engine speed is 2,000 rpm
Approximately 2.5 - 2.6V
50
B
Heated oxygen sen-
sor 1
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm
0 - Approximately 1.0V
(Periodically change)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEF114V
SEF200T
SEF112V
SEF113V
SEF195T
SEF196T
EC-96
[KA24DE]
TROUBLE DIAGNOSIS
54
R
Mass air flow sensor
[Engine is running]
●
Warm-up condition
●
Idle speed
0.9 - 1.8V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,500 rpm
1.9 - 2.3V
55
G
Mass air flow sensor
ground
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
56
OR
Heated oxygen sen-
sor 2
[Engine is running]
●
Warm-up condition
●
Revving engine from idle up to 3,000 rpm
quickly after the following conditions are met.
–
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
59
LG/R
Engine coolant tem-
perature sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with engine
coolant temperature
60
Y/B
Fuel tank temperature
sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with fuel tem-
perature
61
PU/R
Intake air temperature
sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with intake air
temperature
62
Y
EVAP control system
pressure sensor
[Ignition switch: ON]
1.8 - 4.8V
63
G/OR
EGR temperature
sensor
[Engine is running]
●
Warm-up condition
●
Idle speed
Less than 4.5V
[Engine is running]
●
Warm-up condition
●
EGR system is operating
0 - 1.5V
64
W
Knock sensor
[Engine is running]
●
Idle speed
Approximately 2.4V
66
B
Fuel level sensor
ground
[Engine is running]
●
Idle speed
Approximately 0V
67
B/P
Power supply for
ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
72
B/P
69
LG/R
Data link connector
[Ignition switch: ON]
●
CONSULT-II or GST is disconnected.
Approximately 2V
80
SB
Power supply (Back-
up)
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
TROUBLE DIAGNOSIS
EC-97
[KA24DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
101
OR/L
IACV-AAC valve
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
10.5 - 11.5V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm
1 - 13V
102
104
109
111
W/B
W/R
W/L
W/PU
Injector No. 1
Injector No. 3
Injector No. 2
Injector No. 4
[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 is 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
103
G/W
EGRC-solenoid valve
[Engine is running]
●
Warm-up condition
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Lift up the vehicle
●
Shift lever: D (A/T), 1st (M/T)
●
Revving engine from idle to 3,000 rpm quickly
0 - 1V
108
R/G
EVAP canister vent
control valve
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
115*
L/Y
Torque converter
clutch solenoid valve
[Engine is running]
●
Idle speed
Approximately 1V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
116
B/R
ECM ground
[Engine is running]
●
Idle speed
Engine ground
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEF645U
SEF646U
SEF204T
SEF205T
EC-98
[KA24DE]
TROUBLE DIAGNOSIS
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*: For the A/T models.
117
B/P
Current return
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
119
BR/Y
Heated oxygen sen-
sor heater 1
[Engine is running]
●
Engine speed is below 3,600 rpm.
Approximately 0.4V
[Engine is running]
●
Engine speed is above 3,600 rpm.
BATTERY VOLTAGE
(11 - 14V)
120
P/B
Vacuum cut valve
bypass valve
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
122
R/B
Heated oxygen sen-
sor heater 2
[Engine is running]
●
Engine speed is below 4,000 rpm after the fol-
lowing 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.
Approximately 0.4V
[Ignition switch ON]
●
Engine stopped
[Engine is running]
●
Engine speed is above 4,000 rpm
BATTERY VOLTAGE
(11 - 14V)
124
B/R
ECM ground
[Engine is running]
●
Idle speed
Engine ground
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
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