Physical Values

NOTE:

ECM is located in the engine room left side near battery.
When disconnecting ECM harness connector (A), loosen (C) it with levers as far as they will go as shown in the figure below.
- ECM (1)
- Fasten (B)
Connect a break-out box and harness adapter between the ECM and ECM harness connector.
- Use extreme care not to touch 2 pins at one time.
- Data is for comparison and may not be exact.
Specification data are reference values and are measured between each terminals.
Pulse signal is measured by CONSULT.

Fig 1: Disconnecting ECM Harness Connector

Courtesy of NISSAN NORTH AMERICA, INC.

Terminal No.

Description

Condition

Value (Approx.)

Signal name

Input/Output

1 (L)

108 (B)

Throttle control motor (Open)

Output

[Ignition switch: ON]

Engine stopped
Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully depressed

2.6 V⁽¹⁾

2 (L/W)

108 (B)

Throttle control motor power supply

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

3 (G)

108 (B)

A/F sensor 1 heater

Output

[Engine is running]

Warm-up condition
Idle speed

(More than 140 seconds after starting engine)

2.9 - 8.8 V⁽¹⁾

4 (P)

108 (B)

Throttle control motor (Close)

Output

[Ignition switch: ON]

Engine stopped
Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released

1.8 V⁽¹⁾

5 (BR/W)

59 (L/Y)

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

10 V⁽¹⁾

[Ignition switch: ON]

Engine stopped

[Engine is running]

Engine speed: Above 3, 600 RPM

BATTERY VOLTAGE
(11 - 14 V)

9 (SB)

108 (B)

EVAP canister purge volume control solenoid valve

Output

[Engine is running]

Idle speed

BATTERY VOLTAGE
(11 - 14 V)⁽¹⁾

[Engine is running]

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

BATTERY VOLTAGE
(11 - 14 V)⁽¹⁾

10 (B)

ECM ground

11 (B)

ECM ground

12 (L)

108 (B)

Fuel injector No. 1 (Rear)

Output

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on RPM at idle

BATTERY VOLTAGE
(11 - 14 V)⁽¹⁾

16 (G)

Fuel injector No. 3 (Rear)

20 (O)

Fuel injector No. 2 (Rear)

24 (R)

Fuel injector No. 4 (Rear)

25 (R)

Fuel injector No. 4 (Front)

[Engine is running]

Warm-up condition
Engine speed: 2, 000 RPM

BATTERY VOLTAGE
(11 - 14 V)⁽¹⁾

29 (G)

Fuel injector No. 3 (Front)

30 (O)

Fuel injector No. 2 (Front)

31 (L)

Fuel injector No. 1 (Front)

15 (G/W)

108 (B)

Throttle control motor relay

Output

[Ignition switch: OFF]

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: ON]

0 - 1.0 V

17 (V)

108 (B)

Ignition signal No. 1

Output

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on RPM at idle

0 - 0.3 V⁽¹⁾

18 (Y/B)

Ignition signal No. 2

21 (W)

Ignition signal No. 4

[Engine is running]

Warm-up condition
Engine speed: 2, 500 RPM

0.2 - 0.5 V⁽¹⁾

22 (BR)

Ignition signal No. 3

23 (GR)

108 (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)

26 (P)

108 (B)

EVAP canister vent control valve

Output

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

32 (P)

108 (B)

ECM relay (Self shut-off)

Output

[Engine is running]
[Ignition switch: OFF]

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)

33 (W)

36 (R)

Throttle position sensor 1

Input

[Ignition switch: ON]

Engine stopped
Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released

More than 0.36 V

[Ignition switch: ON]

Engine stopped
Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully depressed

Less than 4.75 V

34 (B)

36 (R)

Throttle position sensor 2

Input

[Ignition switch: ON]

Engine stopped
Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released

Less than 4.75 V

[Ignition switch: ON]

Engine stopped
Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully depressed

More than 0.36 V

36 (R)

Sensor ground (Throttle position sensor)

37 (W)

40 (L)

Knock sensor

Input

[Engine is running]

Idle speed

2.5 V

38 (LG)

44 (P)

Engine coolant temperature sensor

Input

[Engine is running]

0 - 4.8 V
Output voltage varies with engine coolant temperature.

40 (L)

Sensor ground (Knock sensor shield circuit)

42 (L)

51 (P)

Fuel tank temperature sensor

Input

[Engine is running]

0 - 4.8 V
Output voltage varies with fuel tank temperature.

43 (SB)

68 (R)

EVAP control system pressure sensor

Input

[Ignition switch: ON]

0.5 - 4.6 V

44 (P)

Sensor ground (Engine coolant temperature sensor)

45 (G/B)

52 (LG)

Mass air flow sensor

Input

[Ignition switch ON]

Engine stopped

0.4 V

[Engine is running]

Warm-up condition
Idle speed

0.8 - 1.3 V

[Engine is running]

Warm-up condition
Engine is revving from idle to about 4, 000 RPM

0.8 - 1.3 to 4.3 V
(Check for linear voltage rise in response to engine being increased to about 4, 000 RPM.)

46 (V)

55 (O)

Intake air temperature sensor

Input

[Engine is running]

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

47 (Y)

60 (L)

Engine oil pressure sensor

Input

[Engine is running]

Warm-up condition
Idle speed

1.0 - 2.0 V

[Engine is running]

Warm-up condition
Engine speed: 2, 000 RPM

1.5 - 3.5 V

48 (W/R)

63 (W)

Exhaust camshaft position sensor

Input

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on RPM at idle

4.3 V⁽¹⁾

[Engine is running]

Engine speed: 2, 000 RPM

4.3 V⁽¹⁾

49 (G)

108 (B)

A/F sensor 1

Input

[Ignition switch: ON]

2.2 V

50 (L)

59 (L/Y)

Heated oxygen sensor 2

Input

[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 - 1.0 V

51 (P)

Sensor ground (Fuel tank temperature sensor)

52 (LG)

Sensor ground (Mass air flow sensor)

53 (L)

108 (B)

A/F sensor 1

Input

[Engine is running]

Warm-up condition
Engine speed: 2, 500 RPM

1.8 V
Output voltage varies with air fuel ratio.

54 (BR)

Sensor ground (Engine oil temperature sensor)

55 (O)

Sensor ground (Intake air temperature sensor)

57 (P)

54 (BR)

Engine oil temperature sensor

Input

[Engine is running]

0 - 4.8 V
Output voltage varies with engine oil temperature.

59 (L/Y)

Sensor ground (Heated oxygen sensor 2)

60 (L)

Sensor ground (Engine oil pressure sensor)

61 (L)

62 (G)

Crankshaft position sensor

Input

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on RPM at idle

4.0 V⁽¹⁾

[Engine is running]

Engine speed: 2, 000 RPM

4.0 V⁽¹⁾

62 (G)

Sensor ground (Crankshaft position sensor)

63 (W)

Sensor ground (Camshaft position sensor)

65 (R)

63 (W)

Intake camshaft position sensor

Input

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on RPM at idle

4.3 V⁽¹⁾

[Engine is running]

Engine speed is 2, 000 RPM

4.3 V⁽¹⁾

68 (R)

Sensor ground (EVAP control system pressure sensor)

69 (BR)

108 (B)

Park/Neutral position signal

Input

[Ignition switch: ON]

Shift lever: Neutral

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: ON]

Shift lever: Except above position

0 V

71 (Y)

68 (R)

Sensor power supply (EVAP control system pressure sensor)

[Ignition switch: ON]

5 V

72 (W)

36 (R)

Sensor power supply (Throttle position sensor)

[Ignition switch: ON]

5 V

73 (P)

108 (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, 000rpm quickly

7 - 10 V⁽¹⁾

74 (O)

60 (L)

Sensor power supply (Engine oil pressure sensor)

[Ignition switch: ON]

5 V

75 (O)

62 (G)

Sensor power supply (Crankshaft position sensor)

[Ignition switch: ON]

5 V

77 (P)

108 (B)

Exhaust 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, 000rpm quickly

7 - 10 V⁽¹⁾

78 (BR)

63 (W)

Sensor power supply (Camshaft position sensor)

[Ignition switch: ON]

5 V

81 (V)

108 (B)

Power supply for ECM (Back-up)

Input

[Ignition switch: OFF]

BATTERY VOLTAGE
(11 - 14 V)

83 (P)

CAN-L

Input/Output

84 (L)

CAN-H

Input/Output

85 (V)

98 (LG)

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

88 (GR)

Data link connector

Input/Output

93 (L)

108 (B)

Ignition switch

Input

[Ignition switch: OFF]

0 V

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

94 (Y)

95 (B)

ASCD steering switch

Input

[Ignition switch: ON]

ASCD steering switch: OFF

4 V

[Ignition switch: ON]

MAIN switch: Pressed

0 V

[Ignition switch: ON]

CANCEL switch: Pressed

1 V

[Ignition switch: ON]

ACCEL/RES switch: Pressed

3 V

[Ignition switch: ON]

COAST/SET switch: Pressed

2 V

95 (B)

Sensor ground (ASCD steering switch)

98 (LG)

Sensor ground (Refrigerant pressure sensor)

99 (LG)

108 (B)

Stop lamp switch

Input

[Ignition switch: OFF]

Brake pedal: Fully released

0 V

[Ignition switch: OFF]

Brake pedal: Slightly depressed

BATTERY VOLTAGE
(11 - 14 V)

100 (G)

108 (B)

ASCD brake switch

Input

[Ignition switch: OFF]

Brake pedal: Fully released

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: OFF]

Brake pedal: Slightly depressed

0 V

101 (W)

98 (LG)

Sensor power supply (Refrigerant pressure sensor)

[Ignition switch: ON]

5 V

102 (BR)

104 (Y)

Sensor power supply (Accelerator pedal position sensor 2)

[Ignition switch: ON]

5 V

103 (GR)

104 (Y)

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

104 (Y)

Sensor ground (Accelerator pedal position sensor 2)

105 (G)

108 (B)

Power supply for ECM

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

106 (V)

111 (R)

Sensor power supply (Accelerator pedal position sensor 1)

[Ignition switch: ON]

5 V

108 (B)

ECM ground

110 (SB)

111 (R)

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

111 (R)

Sensor ground (Accelerator pedal position sensor 1)

⁽¹⁾	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 "WORK FLOW ".