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)