Nissan Frontier D22. Manual — part 542
TROUBLE DIAGNOSIS
EC-1271
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
18
R/W
Malfunction indicator
lamp
[Ignition switch: ON]
0 - 1V
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
19
B/R
ECM ground
[Engine is running]
●
Idle speed
Engine ground
20
L/OR
Start signal
[Ignition switch: ON]
Approximately 0V
[Ignition switch: START]
9 - 12V
21
G/R
Air conditioner switch
[Engine is running]
●
Both A/C switch and blower switch are ON
(Compressor operates)*
Approximately 0V
[Engine is running]
●
A/C switch is OFF
BATTERY VOLTAGE
(11 - 14V)
22
L/B
Park/neutral position
(PNP) switch
[Ignition switch: ON]
●
Shift lever: P or N (A/T), Neutral (M/T)
Approximately 0V
[Ignition switch: ON]
●
Except above position
Approximately 5V
23
L
Throttle position sensor
[Engine is running]
●
Warm-up condition
●
More than -40.0 kpa (-300 mmHg, -11.81 inHg)
of vacuum is applied to the throttle opener with
a hand vacuum pump
●
Accelerator pedal is fully released
0.15 - 0.85V
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal is fully depressed
3.5 - 4.7V
24
W/L
Ignition switch
[Ignition switch: OFF]
0V
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
25
B/Y
ECM ground
[Engine is running]
●
Idle speed
Engine ground
26
PU/W
A/T signal No. 1
[Engine is running]
●
Idle speed
Approximately 0 - 1.0V
27
P/B
A/T signal No. 2
[Engine is running]
●
Idle speed
Approximately 0 - 1.0V
28
BR/W
Throttle position switch
(Closed position)
[Engine is running]
●
Warm-up condition
●
More than -40.0 kpa (-300 mmHg, -11.81 inHg)
of vacuum is applied to the throttle opener with
a hand vacuum pump
●
Accelerator pedal is fully released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal is depressed
Approximately 0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
EC-1272
[VG33ER]
TROUBLE DIAGNOSIS
29
G/B
Vehicle speed sensor
[Engine is running]
●
Lift up the vehicle
●
Shift lever: 2nd (M/T), D (A/T)
●
Vehicle speed is 40 km/h (25 MPH)
2 - 3V
32
B/Y
ECM ground
[Engine is running]
●
Idle speed
Engine ground
35
G/R
A/T signal No. 3
[Engine is running]
●
Idle speed
Approximately 0 - 1.0V
39
GY/R
Power steering oil pres-
sure switch
[Engine is running]
●
Steering wheel is being turned
Approximately 0V
[Engine is running]
●
Steering wheel is not being turned
Approximately 5V
42
B/W
Sensor power supply
[Ignition switch: ON]
Approximately 5V
43
BR
Sensor ground
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
44
PU
Camshaft position sen-
sor (Reference signal)
[Engine is running]
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle
0.3 - 0.5V
[Engine is running]
●
Engine speed is 2,000 rpm
0.3 - 0.5V
46
G
Fuel level sensor
[Ignition switch: ON]
Approximately 0 - 4.8V
Output voltage varies with fuel
level.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEF996U
SEF997U
SEF998U
TROUBLE DIAGNOSIS
EC-1273
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
47
L
Crankshaft position
sensor (OBD)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle
1 - 2V
(AC range)
[Engine is running]
●
Engine speed is 2,000 rpm
3 - 4V
(AC range)
49
LG
Camshaft position sen-
sor (Position signal)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle
Approximately 2.5V
[Engine is running]
●
Engine speed is 2,000 rpm
Approximately 2.5V
50
B
Heated oxygen sensor
1 (bank 1)
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm
0 - Approximately 1.0V
51
G
Heated oxygen sensor
1 (bank 2)
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm
0 - Approximately 1.0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
SEF690W
SEF691W
SEF999U
SEF001V
SEF002V
SEF002V
EC-1274
[VG33ER]
TROUBLE DIAGNOSIS
54
R
Mass air flow sensor
[Engine is running]
●
Warm-up condition
●
Idle speed
1.0 - 1.7V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,500 rpm
1.7 - 2.3V
55
G
Mass air flow sensor
ground
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
56
OR
Heated oxygen sensor
2 (bank 1)
[Engine is running]
●
Warm-up condition
●
Revving engine from idle 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
57
Y
Heated oxygen sensor
2 (bank 2)
[Engine is running]
●
Warm-up condition
●
Revving engine from idle 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 temper-
ature 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
temperature
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]
Approximately 1.8 - 4.8V
64
W
Knock sensor
[Engine is running]
●
Idle speed
Approximately 2.5V
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)
69
LG/R
Data link connector
[Engine is running]
●
CONSULT-II or GST is disconnected
6 - 10V
72
B/P
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
80
SB
Power supply
(Back-up)
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
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