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Home >> Nissan-Datsun >> 2019 >> NV200 S >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction And Basic Inspection) >> Ecu Diagnosis Information >> ECM >> Reference Value >> Physical Values
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Physical Values

NOTE:
  • ECM is located in the engine room left side near battery.
  • Specification data are reference values and are measured between each terminal and ground.
  • Pulse signal is measured by CONSULT.

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

-

Signal name

Input/Output

1

(P)

128

(B)

Throttle control motor (Close)

Output

[Ignition switch: ON]

  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully released

Approximately 1.8 V SYMBOL

SYMBOLGNSPBIA8149J-149Courtesy of NISSAN NORTH AMERICA, INC.

2

(SB)

128

(B)

Throttle control motor power supply

Input

[Ignition switch: ON]

Battery voltage

(11 - 14 V)

3

(L)

128

(B)

Throttle control motor

(Open)

Output

[Ignition switch: ON]

  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully depressed

Approximately 3.2 V SYMBOL

SYMBOLGNSPBIA8150J-150Courtesy of NISSAN NORTH AMERICA, INC.

4

(W)

8

(SHIELD)

Knock sensor

Input

[Engine is running]

  • Idle speed

Approximately 2.5 V

8

(SHIELD)

--

Sensor ground

(Knock sensor)

--

--

--

9

(V)

10

(Y)

13

(L)

14

(R)

128

(B)

Fuel injector No. 4

Fuel injector No. 3

Fuel injector No. 2

Fuel injector No. 1

Output

[Engine is running]

  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle.

Battery voltage

(11 - 14 V) SYMBOL

SYMBOLG06152981Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

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

Battery voltage

(11 - 14 V) SYMBOL

SYMBOLGNSPBIA4943J-943Courtesy of NISSAN NORTH AMERICA, INC.

12

(B)

--

ECM ground

--

--

--

16

(B)

--

ECM ground

--

--

--

17

(P)

128

(B)

EVAP canister purge volume control solenoid valve

Output

[Engine is running]

  • Idle speed
  • Accelerator pedal: Not depressed even slightly, after engine starting.

Battery voltage

(11 - 14 V) SYMBOL

SYMBOLG06152620Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

  • Engine speed: About 2, 000 rpm (More than 100 seconds after starting engine)

Approximately 10 V SYMBOL

SYMBOLGNSPBIB0520E-520Courtesy of NISSAN NORTH AMERICA, INC.

18

(GR)

128

(B)

Fuel pump relay

Output

[Ignition switch: ON]

  • For 1 second after turning ignition switch ON

[Engine is running]

0 - 1.0 V

[Ignition switch: ON]

  • More than 1 second after turning ignition switch ON

Battery voltage

(11 - 14 V)

21

(Y)

128

(B)

Throttle control motor relay

Output

[Ignition switch: OFF]

Battery voltage

(11 - 14 V)

[Ignition switch: ON]

0 - 1.0 V

22

(W)

23

(L)

Heated oxygen sensor 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 1.0 V

23

(L)

--

Sensor ground

(Heated oxygen sensor 2)

--

--

--

25

(Y)

26

(O)

Engine oil temperature sensor

Input

[Engine is running]

Approximately 0 - 4.8 V

Output voltage varies with engine coolant temperature.

26

(O)

--

Sensor ground

(Engine oil temperature sensor)

--

--

--

27

(B)

--

Sensor ground

(Engine coolant temperature sensor)

--

--

--

28

(P)

27

(B)

Engine coolant temperature sensor

Input

[Engine is running]

Approximately 0 - 4.8 V

Output voltage varies with engine coolant temperature.

30

(B)

--

Sensor ground

[Camshaft position sensor (PHASE)]

--

--

--

31

(R)

30

(B)

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 V SYMBOL

SYMBOLGNSPBIB2986E-986Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

  • Engine speed: 2, 000 rpm.

1.0 - 2.0 V SYMBOL

SYMBOLGNSPBIB2987E-987Courtesy of NISSAN NORTH AMERICA, INC.

32

(L)

30

(B)

Sensor power supply

[Camshaft position sensor (PHASE)]

Output

[Ignition switch: ON]

Approximately 5 V

33

(V)

34

(L)

Intake air temperature

sensor

Input

[Engine is running]

Approximately 0 - 4.8 V

Output voltage varies with intake air temperature.

34

(L)

--

Sensor ground

(Mass air flow sensor)

--

--

--

35

(P)

34

(L)

Mass air flow sensor

Input

[Engine is running]

  • Warm-up condition
  • Idle speed

0.7 - 1.1 V

[Engine is running]

  • Warm-up condition
  • Engine speed: 2, 500 rpm

1.3 - 1.7 V

37

(SHIELD)

--

Shield

--

--

--

38

(G)

--

Sensor ground (Engine oil pressure sensor)

--

--

--

39

(W)

38

(G)

Engine oil pressure sensor

Input

[Engine is running]

  • Warm-up condition
  • Idle speed

1.3 V SYMBOL

SYMBOLGNSJPBIA3359Z-359Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

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

1.3 V SYMBOL

SYMBOLGNSJPBIA3360Z-360Courtesy of NISSAN NORTH AMERICA, INC.

40

(R)

38

(G)

Sensor power supply

(Engine oil pressure sensor)

Output

[Ignition switch: ON]

Approximately 5 V

41

(L)

128

(B)

A/F sensor 1

Input

[Engine is running]

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

Approximately 2.2 V

Output voltage varies with air fuel ratio.

45

(P)

128

(B)

A/F sensor 1

Input

[Ignition switch: ON]

Approximately 1.8 V

52

(B)

--

ECM ground

--

--

--

53

(G)

128

(B)

A/F sensor 1 heater

Output

[Engine is running]

  • Warm-up condition
  • Idle speed

    (More than 140 seconds after starting engine)

Approximately 2.9 - 8.8 V SYMBOL

SYMBOLGNSPBIA8148J-148Courtesy of NISSAN NORTH AMERICA, INC.

54

(G)

128

(B)

Heated oxygen sensor 2 heater

Output

[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.

Approximately 10 V SYMBOL

SYMBOLGNSPBIA8148J-148Courtesy of NISSAN NORTH AMERICA, INC.

[Ignition switch: ON]

  • Engine stopped

[Engine is running]

  • Engine speed: Above 3, 600 rpm.

Battery voltage

(11 - 14 V)

62

(BR)

--

Sensor ground

(Battery current sensor)

--

--

--

63

(G)

62

(BR)

Battery current sensor

Input

[Engine is running]

  • Battery: Fully charged*
  • Idle speed

2.6 - 3.5 V

64

(B)

62

(BR)

Sensor power supply

(Battery current sensor)

Output

[Ignition switch: ON]

Approximately 5 V

70

(R)

--

Sensor ground

[Crankshaft position sensor (POS)]

--

--

--

71

(W)

70

(R)

Crankshaft position sensor (POS)

Input

[Engine is running]

  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle.

Approximately 4.0 V SYMBOL

SYMBOLGNSPBIB2998E-998Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

  • Engine speed: 2, 000 rpm

Approximately 4.0 V SYMBOL

SYMBOLGNSPBIB2999E-999Courtesy of NISSAN NORTH AMERICA, INC.

72

(B)

70

(R)

Sensor power supply

[Crankshaft position sensor (POS)]

Output

[Ignition switch: ON]

Approximately 5 V

73

(SHIELD)

--

Shield

--

--

--

74

(R)

--

Sensor ground

(Barometric pressure sensor)

--

--

--

75

(B)

74

(R)

Barometric pressure sensor

Input

[Ignition switch: ON]

1.8 - 4.8 V

Output voltage varies with atmospheric pressure.

76

(L)

74

(R)

Sensor power supply

(Barometric pressure sensor)

Output

[Ignition switch: ON]

Approximately 5 V

77

(BR)

78

(Y)

Throttle position sensor 2

Input

[Ignition switch: ON]

  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully released

Less than 4.75 V

[Ignition switch: ON]

  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully depressed

More than 0.36 V

78

(Y)

--

Sensor ground

(Throttle position sensor)

--

--

--

79

(L)

78

(Y)

Throttle position sensor 1

Input

[Ignition switch: ON]

  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully released

More than 0.36 V

[Ignition switch: ON]

  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully depressed

Less than 4.75 V

80

(V)

78

(Y)

Sensor power supply

(Throttle position sensor)

Output

[Ignition switch: ON]

Approximately 5 V

81

(R)

128

(B)

Power supply for ECM (Back-up)

Input

[Ignition switch: ON]

Battery voltage

(11 - 14 V)

86

(R)

87

(LG)

90

(SB)

91

(G)

128

(B)

Ignition signal No. 1

Ignition signal No. 2

Ignition signal No. 3

Ignition signal No. 4

Input

[Engine is running]

  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle.

0 - 0.3 V SYMBOL

SYMBOLG04811998Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

  • Warm-up condition
  • Engine speed: 2, 500 rpm.

0.2 - 0.5 V SYMBOL

SYMBOLGNSPBIA9266J-266Courtesy of NISSAN NORTH AMERICA, INC.

88

(SB)

--

DATA link connector

--

--

--

89

(P)

128

(B)

ECM relay

(Self shut-off)

Output

[Engine is running]

[Ignition switch: OFF]

  • For a few seconds after turning ignition switch OFF

0 - 1.0 V

[Ignition switch: OFF]

  • More than a few seconds after turning ignition switch OFF

Battery voltage

(11 - 14 V)

93

(P)

128

(B)

Intake valve timing control solenoid valve

Output

[Engine is running]

  • Warm-up condition
  • Idle speed

Battery voltage

(11 - 14 V)

[Engine is running]

  • Warm-up condition
  • When revving engine up to 2, 000 rpm quickly

7 - 10 V SYMBOL

SYMBOLGNSJMBIA1638GB-638Courtesy of NISSAN NORTH AMERICA, INC.

97

(O)

128

(B)

EVAP canister vent control valve

Output

[Ignition switch: ON]

Battery voltage

(11 - 14 V)

99

(P)

--

CAN-L

Input/Output

--

--

100

(L)

--

CAN-H

Input/Output

--

--

103

(SB)

124

(BR)

Refrigerant pressure sensor

Input

[Engine is running]

  • Warm-up condition
  • Both A/C switch and blower fan switch: ON (Compressor operates.)

1.0 - 4.0 V

104

(W)

124

(BR)

Sensor power supply

(Refrigerant pressure sensor)

Output

[Ignition switch: ON]

Approximately 5 V

109

(SB)

128

(B)

Ignition switch

[Ignition switch: OFF]

0 V

[Ignition switch: ON]

Battery voltage

(11 - 14 V)

110

(P)

111

(B)

ASCD steering switch

Input

[Ignition switch: ON]

  • ASCD steering switch: OFF

Approximately 4 V

[Ignition switch: ON]

  • MAIN switch: Pressed

Approximately 0 V

[Ignition switch: ON]

  • CANCEL switch: Pressed

Approximately 1 V

[Ignition switch: ON]

  • RESUME/ACCELERATE switch: Pressed

Approximately 3 V

[Ignition switch: ON]

  • SET/COAST switch: Pressed

Approximately 2 V

111

(B)

--

Sensor ground

(ASCD steering switch)

--

--

--

113

(B)

124

(BR)

Sensor power supply

(EVAP control system pressure sensor)

Output

[Ignition switch: ON]

Approximately 5 V

114

(LG)

62

(BR)

EVAP control system pressure sensor

Input

[Ignition switch: ON]

Approximately 1.8 - 4.8 V

115

(R)

128

(B)

Stop lamp switch

Input

[Ignition switch: OFF]

  • Brake pedal: Fully released

Approximately 0 V

[Ignition switch: OFF]

  • Brake pedal: Slightly depressed

Battery voltage

(11 - 14 V)

116

(SB)

128

(B)

Brake pedal position switch

Input

[Ignition switch: ON]

Brake pedal: Slightly depressed

Approximately 0 V

[Ignition switch: ON]

Brake pedal: Fully released

Battery voltage

(11 - 14 V)

117

(LG)

128

(B)

PNP signal

Input

[Ignition switch: ON]

  • Shift lever: P or N

Battery voltage

(11 - 14 V)

[Ignition switch: ON]

  • Except above

Approximately 0 V

118

(BR)

120

(R)

Sensor power supply

(Accelerator pedal position sensor 2)

Output

[Ignition switch: ON]

Approximately 5 V

119

(W)

120

(R)

Accelerator pedal position sensor 2

Input

[Ignition switch: ON]

  • Engine stopped
  • Accelerator pedal: Fully released

0.3 - 0.6 V

[Ignition switch: ON]

  • Engine stopped
  • Accelerator pedal: Fully depressed

1.95 - 2.4 V

120

(R)

--

Sensor ground

(Accelerator pedal position sensor 2)

--

--

--

121

(G)

128

(B)

Power supply for ECM

Input

[Ignition switch: ON]

Battery voltage

(11 - 14 V)

122

(V)

127

(GR)

Sensor power supply

(Accelerator pedal position sensor 1)

Output

[Ignition switch: ON]

Approximately 5 V

123

(B)

--

ECM ground

--

--

--

124

(BR)

--

Sensor ground

(Refrigerant pressure sensor, EVAP control system pressure sensor)

--

--

--

125

(L)

128

(B)

Fuel tank temperature sensor

Input

[Engine is running]

Approximately 0 - 4.8 V

Output voltage varies with fuel tank temperature

126

(SB)

127

(GR)

Accelerator pedal position sensor 1

Input

[Ignition switch: ON]

  • Engine stopped
  • Accelerator pedal: Fully released

0.6 - 0.9 V

[Ignition switch: ON]

  • Engine stopped
  • Accelerator pedal: Fully depressed

3.9 - 4.7 V

127

(GR)

--

Sensor ground

(Accelerator pedal position sensor 1)

--

--

--

128

(B)

--

ECM ground

--

--

--

SYMBOL : Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

*: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to How to Handle Battery .