Nissan Note E12. Manual - part 244

FUEL INJECTOR

EC-315

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

• 10 A fuse (No. 55)

• Harness for open or short between fuel injector and fuse

>> Repair open circuit or short to ground or short to power in harness or connectors.

3.

CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between fuel injector harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

4.

CHECK FUEL INJECTOR

Refer to 

EC-315, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning fuel injector. Refer to 

EM-40, "Exploded View"

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Exploded View"

.

NO

>> Repair or replace harness or connectors.

Component Inspection

INFOID:0000000009022674

1.

CHECK FUEL INJECTOR

1. Turn ignition switch OFF.

2. Disconnect fuel injector harness connector.

3. Check resistance between fuel injector terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning fuel injector. Refer to 

EM-40, "Exploded View"

.

Fuel injector

ECM

Continuity

Cylinder Connector

Front / Rear

Terminal

Connector

Terminal

1

F17

Front

2

F10

31

Existed

F53

Rear

12

2

F18

Front

2

30

F54

Rear

20

3

F19

Front

2

29

F29

Rear

16

4

F20

Front

2

25

F30

Rear

24

Terminals

Resistance

1 and 2

11.1 - 14.5 

Ω [at 10 - 60°C (50 - 140°F)]

EC-316

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

FUEL PUMP

FUEL PUMP

Component Function Check

INFOID:0000000009022675

1.

CHECK FUEL PUMP FUNCTION

1. Turn ignition switch ON.
2. Pinch fuel feed hose   with two fingers.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>>

EC-316, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009022676

1.

CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Turn ignition switch ON.

4. Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between IPDM E/R harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

3.

CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III

1. Turn ignition switch OFF.

2. Reconnect all harness connectors disconnected.

3. Disconnect “fuel level sensor unit and fuel pump”harness connector.

4. Turn ignition switch ON.

5. Check the voltage between “fuel level sensor unit and fuel pump”harness connector and ground.

Fuel pressure pulsation should be felt on the fuel feed 
hose for 1 second after ignition switch is turned ON.

ALBIA1074ZZ

ECM

Voltage

+

−

Connector

Terminal

Connector

Terminal

F10

23

E16

108

Battery voltage

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F43

43

F10

23

Existed

FUEL PUMP

EC-317

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 4.

4.

CHECK FUSE

1. Turn ignition switch OFF.

2. Disconnect 15 A fuse (No. 48) from IPDM E/R.

3. Check 15 A fuse.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace 15 A fuse.

5.

CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel pump”

harness connector.

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

6.

CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Check the continuity between “fuel level sensor unit and fuel pump”harness connector and ground. 

3. Also check harness for short to power. 
Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair open circuit or short to power in harness or connectors.

7.

CHECK FUEL PUMP

Refer to 

EC-318, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace “fuel level sensor unit and fuel pump”. Refer to 

FL-6, "Exploded View"

.

8.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

Fuel level sensor unit 

and fuel pump

Ground

Voltage

Connector

Terminal

B44

1

Ground

Battery voltage should for exist 1 second 
after ignition switch is turn ON.

IPDM E/R

Fuel level sensor unit and 

fuel pump

Continuity

Connector

Terminal

Connector

Terminal

E44

9

B44

1

Existed

Fuel level sensor unit and fuel pump

Ground

Continuity

Connector

Terminal

B44

3

Ground

Existed

EC-318

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

FUEL PUMP

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Exploded View"

.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

Component Inspection

INFOID:0000000009022677

1.

CHECK FUEL PUMP

1. Turn ignition switch OFF.

2. Disconnect “fuel level sensor unit (fuel pump)” harness connector.

3. Check resistance between “fuel level sensor unit (fuel pump)” terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel level sensor unit, fuel filter and fuel pump assembly. Refer to 

FL-6, "Exploded View"

.

Terminals

Resistance [at 25

°C (77°F)]

1 and 3

0.2 - 5.0 

Ω