Nissan Tiida C11. Manual - part 642

EC-1218

< ECU DIAGNOSIS >

[K9K]

ECM

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

1

(SB)

128

(B)

Fuel injector No. 4

Input

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle.

0- 9V

2

(SB)

Fuel injector No. 3

3

(SB)

Fuel injector No. 2

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

0- 9V

4

(SB)

Fuel injector No. 1

5

(V)

128

(B)

Fuel injector power supply 
No. 4

Output

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle.

5 - 10V

6

(Y)

Fuel injector power supply 
No. 3

7

(O)

Fuel injector power supply 
No. 2

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

5 - 10V

8

(L)

Fuel injector power supply 
No. 1 

15

(R)

—

Sensor ground
(Fuel rail pressure sensor)

—

—

—

19

(W)

15

(R)

Fuel rail pressure sensor

Input

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

Approximately 1.0V

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

Approximately 1.5V

20

(G)

15

(R)

Sensor power supply
(Fuel rail pressure sensor)

—

[Ignition switch: ON]

Approximately 5.0V

28

(G)

30

(O)

Sensor power supply
(Mass air flow sensor)

—

[Ignition switch: ON]

Approximately 5.0V

29

(O)

—

Sensor ground
(Fuel pump temperature 
sensor)

—

—

—

30

(O)

—

Sensor ground
(Mass air flow sensor/ Intake 
air temperature sensor) 

—

—

—

JMBIA0635GB

JMBIA0636GB

JMBIA0637GB

JMBIA0638GB

ECM

EC-1219

< ECU DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

33

(B)

—

Sensor ground
(Engine coolant temperature 
sensor)

—

—

—

35

(LG)

30

(O)

Mass air flow sensor

Input

[Ignition switch: ON]

Approximately 0.36V

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

Approximately 1.7V

[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm

Approximately 2.6V

36

(O)

43

(BR)

Sensor power supply
(Turbocharger boost sensor)

—

[Ignition switch: ON]

Approximately 5.0V

37

(LG)

29

(O)

Fuel pump temperature sen-
sor

Input

[Engine is running]
• Warm-up condition

Approximately 2.8V
Output voltage varies with fuel 
pump temperature.

38

(P)

33

(B)

Engine coolant temperature 
sensor

Input

[Engine is running]
• Warm-up condition

Approximately 1.8V
Output voltage varies with engine 
coolant temperature.

39

(V)

30

(O)

Intake air temperature sen-
sor

Input

[Engine is running]
• Warm-up condition

Approximately 2.0V
Output voltage varies with intake 
air temperature.

43

(BR)

—

Sensor ground
(Turbocharger boost sensor)

—

—

—

44

(G)

43

(BR)

Turbocharger boost sensor

Input

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

Approximately 1.6V

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

Approximately 1.6V

49

(P)

128

(B)

High pressure supply pump
(Pressure control valve)

Output

[Ignition switch: OFF]
• Engine: Stopped

Duty signal

[Ignition switch: ON]
• Engine: Stopped

[Engine is running]
• Idle speed

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

50

(P)

128

(B)

High pressure supply pump
(Volumetric control valve)

Output

[Ignition switch: OFF]
• Engine: Stopped

Duty signal

[Ignition switch: ON]
• Engine: Stopped

[Engine is running]
• Idle speed

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

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

EC-1220

< ECU DIAGNOSIS >

[K9K]

ECM

52

(G)

128

(B)

Turbocharger boost control 
solenoid valve

Output

[Ignition switch: ON]
• Warm-up condition
• Idle speed

0 - 12.5V 

[Ignition switch: ON]
• Warm-up condition
• Engine speed: 2,000 rpm

0 - 12.5V 

53

(G)

54

(V)

128

(B)

Power supply for ECM

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

60

(P)

128

(B)

ECM relay (self-shutoff)

Output

[Ignition switch: ON]
[Ignition switch: OFF]
• For a few seconds after turn-

ing ignition switch OFF

Approximately 0.7V

[Ignition switch: OFF]
• More than a few seconds af-

ter turning ignition switch 
OFF

BATTERY VOLTAGE
(11-14V)

65

(W)

—

Sensor ground
(Camshaft position sensor)

—

—

—

69

(W)

128

(B)

Power supply for ECM 
(Back-up)

Input

[Ignition switch: OFF]

BATTERY VOLTAGE.
(11 - 14V)

72

(P)

128

(B)

Electric throttle control actu-
ator

Output

[Engine is running]
• Idle speed

0.7V

[Ignition switch: OFF]
• For a few seconds after turn-

ing ignition switch OFF

0V

[Ignition switch: OFF]
• More than a few seconds af-

ter turning ignition switch 
OFF

0V

74

(BR)

—

Sensor ground
(Refrigerant pressure sen-
sor)

—

—

—

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0639GB

JMBIA0697GB

ECM

EC-1221

< ECU DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

75

(G)

128

(B)

Camshaft position sensor

Input

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle.

0 - 1V 

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

0 - 1V 

78

(GR)

74

(BR)

Refrigerant pressure sensor

Input

[Engine is running]
• Warm-up condition
• Both A/C switch and blower 

fan switch: ON (Compressor 
operates)

Approximately2.3V

82

(GR)

—

Sensor ground
(EGR volume control valve)

—

—

—

84

(W)

128

(B)

Crankshaft position sensor

Input

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle.

0 - 12.5V 

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

0 - 12.5V 

85

(L)

82

(GR)

Sensor power supply
(EGR volume control valve)

—

[Ignition switch: ON]

Approximately 5V

86

(LG)

82

(GR)

EGR volume control valve
(EGR volume control valve 
control position sensor)

Input

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

3.4V

88

(G)

—

Sensor ground
(Crankshaft position sensor)

—

—

—

89

(W)

74

(BR)

Sensor power supply
(Refrigerant pressure sen-
sor)

—

[Ignition switch: ON]

Approximately 5.0V

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0698GB

JMBIA0699GB

MBIB1508E

MBIB1509E