Nissan Frontier. Manual - part 613

ECM

EC-1023

< ECU DIAGNOSIS INFORMATION >

[VQ40DE FOR MEXICO]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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 2.2V
Output voltage varies with air fuel 
ratio.

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 en-
gine)

Approximately 2.9 - 8.8V

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

PBIB1039E

PBIB1040E

SEC984C

SEC985C

PBIA8148J

EC-1024

< ECU DIAGNOSIS INFORMATION >

[VQ40DE FOR MEXICO]

ECM

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

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

SB

Intake air temperature sensor [Engine is running]

Approximately 0 - 4.8V
Output voltage varies with intake 
air temperature.

35

O/L

A/F sensor 1 (Bank 1)

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

Approximately 2.2V
Output voltage varies with air fuel 
ratio.

36

W

Knock sensor
(Bank 2)

[Engine is running]
• Idle speed

Approximately 2.5V

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

PBIB1039E

PBIB1040E

ECM

EC-1025

< ECU DIAGNOSIS INFORMATION >

[VQ40DE FOR MEXICO]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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)

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 sensor/
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

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

SEC984C

SEC985C

SEC990C

SEC991C

EC-1026

< ECU DIAGNOSIS INFORMATION >

[VQ40DE FOR MEXICO]

ECM

51

O

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

W/L

A/F sensor 1 (Bank 1)

[Ignition switch: ON]

Approximately 1.8V

60
61
62

SB
BR

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

V

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

L

Battery current sensor

[Engine is running]
• Battery: Fully charged*
• Idle speed

Approximately 2.6 - 3.5V

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

SEC986C

SEC987C