Nissan Sentra. Manual - part 347

 

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Nissan Sentra. Manual - part 347

 

 

EC-84

< ECU DIAGNOSIS INFORMATION >

[MRA8DE]

ECM

30

(L)

—

Sensor ground
[Camshaft position sen-
sor (PHASE)]

—

—

—

31

(BR)

30

(L)

Camshaft position sensor 
(PHASE)

Input

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending 
on rpm at idle

1.0 - 2.0

[Engine is running]
• Engine speed is 2,000 rpm

1.0 - 2.0

32

(GR)

—

Sensor power supply
[Camshaft position sen-
sor (PHASE)]

—

[Ignition switch: ON]

5.0 V

33

(GR)

34

(W)

Intake air temperature 
sensor

Input

[Engine is running]

0 - 4.8 V

Output voltage varies with intake 

air temperature.

34

(W)

—

Sensor ground
(Mass air flow sensor, in-
take air temperature sen-
sor)

—

—

—

35

(G)

34

(W)

Mass air flow sensor

Input

[Ignition switch: ON]
• Engine stopped

 1.27 V

[Engine is running]
• Warm-up condition
• Idle speed

1.3 – 1.6 V

[Engine is running]
• Warm-up condition
• Engine is revving from idle to about 

4,000 rpm

1.3 – 1.6 

→ 2.6 V (Check for lin-

ear voltage rise in response to 

engine being increased to about 

4,000 rpm.)

36

(R)

—

Sensor power supply
(Mass air flow sensor, in-
take air temperature sen-
sor)

—

[Ignition switch: ON]

5.0 V

37

(B)

—

Shield

—

—

—

38

(W)

—

Sensor ground
(Engine oil pressure sen-
sor)

—

—

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JSBIA2670ZZ

JSBIA2671ZZ

ECM

EC-85

< ECU DIAGNOSIS INFORMATION >

[MRA8DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

39

(G)

38

(W)

Engine oil pressure sen-
sor

Input

[Engine is running]
• Warm-up condition
• Idle speed

1.3 V

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

2.7 V

40

(R)

38

(W)

Sensor power supply
(Engine oil pressure sen-
sor)

—

[Ignition switch: ON]

5.0 V

41

(Y)

128

(B/Y)

A/F sensor 1

Input

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

2.2 V

(Output voltage varies with air-

fuel ratio)

42

(W)

—

Sensor ground
[Exhaust valve timing 
control position sensor]

—

—

—

43

(P)

42

(W)

Exhaust valve timing con-
trol position sensor

Input

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending 
on rpm at idle

1.0

[Engine is running]
• Engine speed is 2,500 rpm

1.0

44

(R)

—

Sensor power supply
[Exhaust valve timing 
control position sensor]

—

[Ignition switch: ON]

5 V

45

(BR)

128

(B/Y)

A/F sensor 1

Input

[Engine is running]
• Engine speed is 2,000 rpm

2.2 V

Output voltage varies with air fuel 

ratio.

49

(G)

128

(B/Y)

Intake manifold runner 
control valve motor 
(Close)

Output

[Ignition switch ON]
• Engine coolant temperature: More 

than 60

°C (140°F)

• Accelerator pedal: Depressed 

→ ful-

ly released

Battery voltage appears for about 

1 second.

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JPBIA3359ZZ

JPBIA3360ZZ

JSBIA2672ZZ

JSBIA2673ZZ

EC-86

< ECU DIAGNOSIS INFORMATION >

[MRA8DE]

ECM

50

(R)

128

(B/Y)

Intake manifold runner 
control valve motor power 
supply

Input

[Ignition switch: ON]

Battery voltage

(11 - 14 V)

51

(R)

128

(B/Y)

Intake manifold runner 
control valve motor 
(Open)

Output

[Ignition switch ON]
• Engine coolant temperature: More 

than 60

°C (140°F)

• Accelerator pedal: Fully released 

→ 

depressed

Battery voltage appears for about 

1 second.

52

(B)

—

ECM ground

—

—

—

53

(G)

128

(B/Y)

A/F sensor 1 heater

Input

[Engine is running]
• Warm-up condition
• Idle speed

(More than 260 seconds after start-
ing engine)

10 V

54

(G)

128

(B/Y)

Heated oxygen sensor 2 
heater

Output

[Engine is running]
• Engine speed: Below 3,600 rpm af-

ter 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

8 V

[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 rpm

Battery voltage

(11 - 14 V)

61

(BG)

62

(BR)

Battery temperature sen-
sor

Input

[Engine is running]
• Battery temperature: 25

°C (°F)

• Idle speed

3.3 V

62

(BR)

—

Sensor ground
(Battery current sensor, 
battery temperature sen-
sor)

—

—

—

63

(G)

62

(BR)

Battery current sensor

Input

[Engine is running]
• Battery: Fully charged

*

• Idle speed

2.6 - 3.5 V

64

(Y)

—

Sensor power supply
(Battery current sensor)

—

[Ignition switch: ON]

5.0 V

70

(W)

—

Sensor ground
[Crankshaft position sen-
sor (POS)]

—

—

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JPBIA4732ZZ

JMBIA0325GB

ECM

EC-87

< ECU DIAGNOSIS INFORMATION >

[MRA8DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

71

(R)

70

(W)

Crankshaft position sen-
sor (POS)

Input

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending 
on rpm at idle

1.0 V

[Engine is running]
• Engine speed: 2,000 rpm

1.0 V

72

(G)

—

Sensor power supply
[Crankshaft position sen-
sor (POS)]

—

[Ignition switch: ON]

5.0 V

73

(GR)

—

Shield

—

—

—

77

(W)

78

(R)

Throttle position sensor 2

Input

[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully released

Less than 4.75 V

[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully depressed

More than 0.36 V

78

(R)

—

Sensor ground
(Throttle position sensor)

—

—

—

79

(G)

78

(R)

Throttle position sensor 1

Input

[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully released

More than 0.36 V

[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully depressed

Less than 4.75 V

80

(B)

—

Sensor power supply
(Throttle position sensor)

—

[Ignition switch: ON]

5.0 V

81

(Y)

128

(B/Y)

Power supply for ECM 
(Backup)

Input

[Ignition switch: OFF]

Battery voltage

(11 - 14 V)

83

(LG)

92

(V)

Intake manifold runner 
control valve position sen-
sor

Input

[Ignition switch ON]
• Engine coolant temperature: Be-

tween 0

°C (32°F) and 45°C (113°F)

• Accelerator pedal: Fully released

Less than 2.4 V

[Ignition switch ON]
• Engine coolant temperature: Be-

tween 0

°C (32°F) and 45°C (113°F)

• Accelerator pedal: Slightly de-

pressed

More than 3.5 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JPBIA4728ZZ

JPBIA4729ZZ

 

 

 

 

 

 

 

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