Nissan Cube. Manual - part 386

EC-430

< ECU DIAGNOSIS INFORMATION >

[MR18DE]

ECM

SET SW

• Ignition switch: ON

SET/COAST switch: pressed

ON

SET/COAST switch: Released

OFF

RESUME/ACC SW

• Ignition switch: ON

RESUME/ACCELERATE switch: 
pressed

ON

RESUME/ACCELERATE switch: Re-
leased

OFF

BRAKE SW1
(ASCD brake switch)

• Ignition switch: ON

• Brake pedal: Fully released (CVT)
• Brake pedal and clutch pedal: Fully re-

leased (M/T)

ON

• Brake pedal: Slightly depressed (CVT)
• Brake pedal and/or clutch pedal: Slight-

ly depressed (M/T)

OFF

BRAKE SW2
(stop lamp switch)

• Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

VHCL SPD CUT

• Ignition switch: ON

NON

LO SPEED CUT

• Ignition switch: ON

NON

AT OD MONITOR

• Ignition switch: ON

OFF

AT OD CANCEL

• Ignition switch: ON

OFF

CRUISE LAMP

• Ignition switch: ON

MAIN switch: Pressed at the 1st time 

→

 

at the 2nd time

ON 

→

 OFF

SET LAMP

• MAIN switch: ON
• Vehicle speed: Between 40 km/h 

(25 MPH) and 144 km/h (89 
MPH)

ASCD: Operating

ON

ASCD: Not operating

OFF

THRTL STK CNT B1

NOTE:
The item is indicated, but not used.

—

EVAP LEAK DIAG

Ignition switch: ON

Indicates the condition of 

EVAP leak diagnosis.

EVAP DIAG READY

Ignition switch: ON

Indicates the ready condition 

of EVAP leak diagnosis.

HO2 S2 DIAG1 (B1)

DTC P0139 self-diagnosis (delayed response) is incomplete.

INCMP

DTC P0139 self-diagnosis (delayed response) is complete.

CMPLT

HO2 S2 DIAG2 (B1)

DTC P0139 self-diagnosis (slow response) is incomplete.

INCMP

DTC P0139 self-diagnosis (slow response) is complete.

CMPLT

A/F SEN1 DIAG1 
(B1)

DTC P015A and P015B self-diagnosis is incomplete.

INCMP

DTC P015A and P015B self-diagnosis is complete.

CMPLT

A/F SEN1 DIAG2 
(B1)

DTC P014C and P014D self-diagnosis is incomplete.

INCMP

DTC P014C and P014D self-diagnosis is complete.

CMPLT

A/F SEN1 DIAG3 
(B1)

The vehicle condition is not within the diagnosis range of DTC P014C, 
P014D,P015A or P015B.

ABSNT

The vehicle condition is within the diagnosis range of DTC P014C, P014D, 
P015A or P015B.

PRSNT

SYSTEM 1 DIAG-
NOSIS A B1

DTC P117A self-diagnosis is incomplete.

INCMP

DTC P117A self-diagnosis is complete.

CMPLT

SYSTEM 1 DIAG-
NOSIS B B1

DTC P117A self-diagnosis is on standby.

ABSENT

DTC P117A self-diagnosis is under diagnosis.

PRSENT

A/F-S ATMSPHRC 
CRCT B1

Engine: After warming up, idle the engine

Varies depending on vehicle 
environment.

A/F-S ATMSPHRC 
CRCT B2

Engine: After warming up, idle the engine

Varies depending on vehicle 
environment.

Monitor Item

Condition

Values/Status

ECM

EC-431

< ECU DIAGNOSIS INFORMATION >

[MR18DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

*: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ from
ECM terminals voltage signal.

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

PG-3, "How to Handle Battery"

.

TERMINAL LAYOUT

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.

A/F-S ATMSPHRC 
CRCT UP B1

Engine: Running

Varies depending on the 
number of updates.

A/F-S ATMSPHRC 
CRCT UP B2

Engine: Running

Varies depending on the 
number of updates.

Monitor Item

Condition

Values/Status

PBIA9221J

Terminal No.

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

1

(P)

108

(B)

Throttle control motor 
(Open)

Output

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

3.2 V

2

(SB)

108

(B)

Throttle control motor re-
lay power supply

Input

[Ignition switch: ON]

BATTERY VOLTAGE

(11 - 14 V)

4

(L)

108

(B)

Throttle control motor 
(Close)

Output

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

1.8 V

JMBIA0324GB

JMBIA0326GB

EC-432

< ECU DIAGNOSIS INFORMATION >

[MR18DE]

ECM

5

(G)

59

(O)

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

10 V

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

BATTERY VOLTAGE

(11 - 14 V)

8

(G)

53

(LG)

A/F sensor 1 heater

Output

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

(More than 140 seconds after start-
ing engine)

2.9 - 8.8 V

9

(P)

108

(B)

EVAP canister purge vol-
ume control solenoid 
valve

Output

[Engine is running]
• Idle speed
• Accelerator pedal: Not depressed 

even slightly, after engine starting

BATTERY VOLTAGE

(11 - 14 V)

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

(More than 100 seconds after start-
ing engine.)

10 V

11

(B)

—

ECM ground

—

—

—

14

(L)

108

(B)

PNP signal

Input

[Ignition switch: ON]
• Selector lever: P or N (CVT), Neutral 

(M/T)

BATTERY VOLTAGE

(11 - 14 V)

[Ignition switch: ON]
• Selector lever: Except above

0 V

15

(Y)

108

(B)

Throttle control motor re-
lay

Output

[Ignition switch: OFF]

BATTERY VOLTAGE

(11 - 14 V) 

[Ignition switch: ON]

0 - 1.0 V

Terminal No.

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JMBIA0325GB

JMBIA0325GB

JMBIA0327GB

JMBIA0328GB

ECM

EC-433

< ECU DIAGNOSIS INFORMATION >

[MR18DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

17

(R)

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

18

(LG)

Ignition signal No. 2

21

(G)

Ignition signal No. 4

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

0.2 - 0.5 V

22

(SB)

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

25

(V)

108

(B)

Fuel injector No. 4

Output

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

NOTE:
The pulse cycle changes depending 
on rpm at idle

BATTERY VOLTAGE

(11 - 14 V)

29

(Y)

Fuel injector No. 3

30

(O)

Fuel injector No. 2

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

BATTERY VOLTAGE

(11 - 14 V)

31

(L)

Fuel injector No. 1

28

(W)

108

(B)

EVAP canister vent con-
trol 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 turn-

ing ignition switch OFF

BATTERY VOLTAGE

(11 - 14 V)

33

(LG)

36

(Y)

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

Terminal No.

Description

Condition

Value

(Approx.)

+

−

Signal name

Input/

Output

JMBIA0329GB

JMBIA0330GB

JMBIA0331GB

JMBIA0332GB