Nissan March K13. Manual - part 224

ECM

EC-357

< ECU DIAGNOSIS INFORMATION >

[HR12DE (TYPE 2)]

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

TERMINAL LAYOUT

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.

- 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-III.

P/N POSI SW

• Ignition switch: ON

Shift lever: Neutral

Shift lever: Except above

Off

INT/A TEMP SE

• Ignition switch: ON

Indicates intake air tempera-
ture.

AC PRESS SEN

• Engine: Idle
• Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 - 4.0 V

TURBO BST SEN

• Engine: After warming up

Ignition switch: ON
Engine stopped

4.5 V
Output voltage varies with at-
mospheric pressure.

Engine: Idle

1.3 - 1.5 V

Maintaining engine speed at 2,000 rpm

1.0 - 1.2V

O2 SEN HTR DTY

• Engine coolant temperature when engine started: More than 80

C (176

• Engine speed: Below 3,600 rpm

Approx. 30%

Monitor Item

Condition

Values/Status

JSBIA0404ZZ

JSBIA0405ZZ

EC-358

< ECU DIAGNOSIS INFORMATION >

[HR12DE (TYPE 2)]

ECM

Terminal No.

Description

Condition

Value

(Approx.)

–

Signal name

Input/

Output

(L)

(B)

Throttle control motor
(Open)

Output

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T) or 1st (M/T)
• Accelerator pedal: Fully depressed

2 V

(SB)

(B)

Throttle control motor power
supply

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

(P)

(B)

Throttle control motor
(Close)

Output

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T) or 1st (M/T)
• Accelerator pedal: Fully released

2 V

(B)

—

ECM ground

—

(G)

(B)

Heated oxygen sensor 1
heater

Output

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

2.9 - 8.8 V

[Engine is running]
• Engine speed: Above 3,600 rpm

BATTERY VOLTAGE
(11 - 14 V)

(Y)

(B)

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)

(O)

Fuel injector No. 2

(L)

Fuel injector No. 3

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

BATTERY VOLTAGE

(11 - 14 V)

JMBIA0213GB

JMBIA0215GB

JMBIA0030GB

JMBIA0221GB

JMBIA0222GB

ECM

EC-359

< ECU DIAGNOSIS INFORMATION >

[HR12DE (TYPE 2)]

(G)

(B)

Heated oxygen sensor 2
heater

Output

[Engine is running]
• Engine speed: Below 3,900 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 3,900 rpm

BATTERY VOLTAGE
(11 - 14 V)

(LG)

80
(B)

Ignition signal No. 2

Output

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

NOTE:
The pulse cycle changes depending
on rpm at idle

0 - 0.3 V

(R)

Ignition signal No. 1

(SB)

Ignition signal No. 3

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

0.2 - 0.5 V

(Y)

(B)

Throttle control motor relay

Output

[Ignition switch: ON

→

OFF]

0 - 1.0 V

↓

BATTERY VOLTAGE
(11 - 14 V)

↓

0 V

[Ignition switch: ON]

0 - 1.0 V

(P)

(B)

EVAP canister purge volume
control solenoid valve

Output

[Engine is running]
• Idle speed

BATTERY VOLTAGE

(11 - 14 V)

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

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

BATTERY VOLTAGE

(11 - 14 V)

Terminal No.

Description

Condition

Value

(Approx.)

–

Signal name

Input/

Output

JMBIA0214GB

JMBIA0219GB

JMBIA0220GB

JMBIA0039GB

JMBIA0216GB

EC-360

< ECU DIAGNOSIS INFORMATION >

[HR12DE (TYPE 2)]

ECM

(GR)

(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 ig-

nition switch ON

BATTERY VOLTAGE
(11 - 14 V)

(P)

(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)

(Y)

—

Sensor ground
(Throttle position sensor)

—

(LG)

(Y)

Throttle position sensor 1

Input

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T) or 1st (M/T)
• Accelerator pedal: Fully released

More than 0.36 V

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T) or 1st (M/T)
• Accelerator pedal: Fully depressed

Less than 4.75 V

(O)

(Y)

Throttle position sensor 2

Input

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T) or 1st (M/T)
• Accelerator pedal: Fully released

Less than 4.75 V

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (A/T) or 1st (M/T)
• Accelerator pedal: Fully depressed

More than 0.36 V

—

Sensor ground
(Knock sensor shield circuit)

—

(B)

—

Sensor ground
(Engine coolant temperature
sensor)

—

(W)

—

Knock sensor

Input

[Engine is running]
• Idle speed

2.5 V

(P)

(B)

Engine coolant temperature
sensor

Input

[Engine is running]

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

(BR)

—

Sensor ground
(Refrigerant pressure sen-
sor)

—

(BR)

—

Sensor ground
[Manifold absolute pressure
(MAP) sensor]

—

(GR)

(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

Terminal No.

Description

Condition

Value

(Approx.)

–

Signal name

Input/

Output

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