Nissan X-Trail 32. Manual - part 940

ECM

EC-889

< ECU DIAGNOSIS INFORMATION >

[R9M]

C

D

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ECU DIAGNOSIS INFORMATION

ECM

Reference Value

INFOID:0000000010935587

TERMINAL LAYOUT

PHYSICAL VALUES

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

JSBIA5267GB

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

1

(B)

—

ECM ground

—

—

—

2

(W)

3

(Y)

Accelerator pedal position 
sensor 1

Input

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-

leased

0.74 V

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-

pressed

4.54 V

3

(Y)

—

Sensor ground
(Accelerator pedal position 
sensor 1)

—

—

—

4

(B)

—

ECM ground

—

—

—

5

(L)

8

(B)

Power supply for ECM

Input

[Ignition switch: OFF]

0 V

[Ignition switch: ON]

BATTERY VOLTAGE

(11 - 14 V)

6

(G)

3

(Y)

Sensor power supply
(Accelerator pedal position 
sensor 1)

—

[Ignition switch: ON]

5 V

8

(B)

—

ECM ground

—

—

—

9

(L)

8

(B)

Fuel heater and water in fuel 
level sensor

Input

[Ignition switch: ON]

11.69 V

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

14.0 V

10

(L)

12

(P)

Sensor power supply
(Accelerator pedal position 
sensor 2)

—

[Ignition switch: ON]

5 V

EC-890

< ECU DIAGNOSIS INFORMATION >

[R9M]

ECM

11

(V)

12

(P)

Accelerator pedal position 
sensor 2

Input

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-

leased

0.38 V

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-

pressed

0.27 V

12

(P)

—

Sensor ground
(Accelerator pedal position 
sensor 2)

—

—

—

16

(R)

*1

(BG)

*2

8

(B)

Brake pedal position 

switch

*1

Stop lamp switch

*2

Input

[Ignition switch: OFF]
• Brake pedal: Fully released

0 V

[Ignition switch: OFF]
• Brake pedal: Slightly de-

pressed

11.83 V

17

(LG)

8

(B)

Ignition switch

Input

[Ignition switch: ON]

11.87 V

18

(G)

19

(BR)

ASCD steering switch

Input

[Ignition switch: ON]
• ASCD steering switch: OFF

4 V

[Ignition switch: ON]
• CANCEL switch: Pressed

1 V

[Ignition switch: ON]
• RES/+ switch: Pressed

3 V

[Ignition switch: ON]
• SET/

−

 switch: Pressed

2 V

19

(BR)

—

Sensor ground
(ASCD steering switch)

—

—

—

20

(BR)

8

(B)

Fuel pump control module 
(command)

Output

[Ignition switch: ON]
Fuel pump not activates

0.05 V

(PWM duty: less than 14%)

[Ignition switch: ON]
Fuel pump activated

0 – 6.74 V

(PWM duty: Approx. 69%)

22

(G)

8

(B)

Fuel pump control module 
(diagnosis)

Input

[Ignition switch: ON]

11.0 V

23

(V)

8

(B)

Speed limiter MAIN switch

Input

[Ignition switch: ON]
Speed limiter MAIN switch: OFF

0 V

[Ignition switch: ON]
Speed limiter MAIN switch: ON

Battery voltage

(11 - 14 V)

24

(R)

8

(B)

Clutch pedal position 

switch

*2

Input

[Ignition switch: ON]
• Clutch pedal: Fully released

0 V

[Ignition switch: ON]
• Clutch pedal: Fully depressed

11.25 V

27

(V)

8

(B)

Clutch interlock switch

*2

Input

[Ignition switch: ON]
• Engine stopped
• Clutch pedal: Fully released

0 V

[Ignition switch: ON]
• Engine stopped
• Clutch pedal: Fully depressed

BATTERY VOLTAGE

(11 - 14 V)

30

(BR)

8

(B)

ASCD MAIN switch

Input

[Ignition switch: ON]
ASCD MAIN switch: OFF

0 V

[Ignition switch: ON]
ASCD MAIN switch: ON

Battery voltage

(11 - 14 V)

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

ECM

EC-891

< ECU DIAGNOSIS INFORMATION >

[R9M]

C

D

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EC

N

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31

(P)

—

CAN communication line
(CAN-L)

Input/

Output

—

—

32

(L)

—

CAN communication line
(CAN-H)

Input/

Output

—

—

35

(R)

8

(B)

Glow plug control (com-
mand)

Output

[Engine is running]
• Engine coolant temperature: 

less than 20

°

C (68

°

F)

• Idle speed

12.91 V

[Engine is running]
• Engine coolant temperature: 

more than 80

°

C (176

°

F)

• Idle speed

12.8 V

37

(LG)

8

(B)

Voltage stabilizer signal

Output

[Stop/start system operates]
• While cranking of restart

(While operating the starter mo-

tor)

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

Battery voltage

[Ignition switch: ON]

12.39 V

38

(GR)

8

(B)

Fuel pump relay control

Output

[Ignition switch: ON]
• Fuel Pump relay always is on

0 – 5.17 V

41

(G)

8

(B)

ECM relay
(Self shut-off)

Output

[Engine is running]
[Ignition switch: OFF]
• A few seconds after turning ig-

nition switch OFF

0.78 V

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

turning ignition switch OFF

12.42 V

42

(Y)

8

(B)

Restart relay

Output

[Stop/start system operate]
• While cranking of restart

0 V

(While operating the starter mo-

tor)

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

11.38 V

43

(R)

8

(B)

Fuel flow actuator

Output

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

9.6 V

46

(V)

8

(B)

Thermoplunger relay 2

Output

[Engine is running]
During diesel particulate filter re-
generation mode

0 V

[Engine is running]
Except above

13.20 V

49

(P)

8

(B)

Intake manifold runner con-
trol valve motor (-)

Output

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

14.43 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JSBIA5055GB

EC-892

< ECU DIAGNOSIS INFORMATION >

[R9M]

ECM

50

(BG)

8

(B)

Thermoplunger relay 1

Output

[Engine is running]
During diesel particulate filter re-
generation mode

0 V

[Engine is running]
Except above

13.68 V

53

(Y)

8

(B)

Engine coolant bypass con-
trol solenoid valve

Output

[Engine is running]
Engine cooling temperature: 
70

°

C (158

°

F) or more

14.42 V

[Engine is running]
Engine coolant temperature: 
less than 30

°

C (86

°

F)

14.42 V

55

(R)

8

(B)

Sensor power supply
(Low pressure EGR volume 
control valve position sen-
sor)

—

[Ignition switch: ON]

5 V

56

(B)

8

(B)

Crankshaft position sensor

Input

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

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

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

57

(SB)

8

(B)

Thermoplunger relay 3

Output

[Engine is running]
During diesel particulate filter re-
generation mode

0 V

[Engine is running]
Except above

13.67 V

59

(Y)

8

(B)

Sensor power supply
(Turbocharger boost sensor, 
mass air flow sensor)

—

[Ignition switch: ON]

5.0 V

60

(R)

8

(B)

Sensor power supply
(Crankshaft position sensor)

—

[Ignition switch: ON]

5.0 V

63

(LG)

8

(B)

Thermoplunger diagnosis 1

Input

[Engine is running]
• Idle speed
• No malfunction in ther-

moplunger system.

13.97 V

65

(SB)

—

Sensor ground
(Low pressure EGR volume 
control valve position sen-
sor)

—

—

—

66

(SB)

—

Sensor ground
(Fuel pressure sensor)

—

—

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JSBIA4815ZZ

JSBIA4816ZZ