Nissan Versa Sedan. Manual - part 359

FUEL PUMP

EC-435

< 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-436, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

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

FL-5, "Exploded View"

.

8.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

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-436

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

FUEL PUMP

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

 (WITH I-KEY) or 

PCS-56,

"Removal and Installation"

 (WITHOUT I-KEY).

NO

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

Component Inspection

INFOID:0000000009267312

1.

CHECK FUEL PUMP

1. Turn ignition switch OFF.

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

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

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

FL-5, "Exploded View"

.

Terminals

Resistance [at 25

°C (77°F)]

1 and 3

0.2 - 5.0 

Ω

IGNITION SIGNAL

EC-437

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

IGNITION SIGNAL

Component Function Check

INFOID:0000000009267313

1.

INSPECTION START

Turn ignition switch OFF, and restart engine.
Does the engine start?

YES-1 >> With CONSULT: GO TO 2.

YES-2 >> Without CONSULT: GO TO 3.

NO

>> Go to 

EC-437, "Diagnosis Procedure"

.

2.

IGNITION SIGNAL FUNCTION

With CONSULT

1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.

2. Make sure that each circuit produces a momentary engine speed drop.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-437, "Diagnosis Procedure"

.

3.

IGNITION SIGNAL FUNCTION

 Without CONSULT

1. Let engine idle.

2. Check the voltage signal between ECM harness connector and ground with an oscilloscope.

NOTE:

The pulse cycle changes depending on rpm at idle.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-437, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009267314

1.

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I

1. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Go to 

EC-155, "Diagnosis Procedure"

.

ECM

Voltage signal

+

−

Connector

Terminal

Connector

Terminal

F7

17

E16

108

18

21

22

JMBIA0219GB

ECM

Voltage

Connector

Terminal

+

−

E16

105

108

Battery voltage

EC-438

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

IGNITION SIGNAL

2.

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II

1. Turn ignition switch OFF.

2. Disconnect condenser harness connector.

3. Turn ignition switch ON.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector F42.

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

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

YES

>> GO TO 11.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.

• Harness for open or short between IPDM E/R and condenser

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

5.

CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Check the continuity between condenser harness connector and ground.

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

YES

>> GO TO 6.

NO

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

6.

CHECK CONDENSER

Refer to 

EC-441, "Component Inspection (Condenser)"

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace condenser.

7.

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV

1. Reconnect all harness connectors disconnected.

2. Disconnect ignition coil harness connector.

Condenser

Ground

Voltage

Connector

Terminal

F26

1

Ground

Battery voltage

IPDM E/R

Condenser

Continuity

Connector

Terminal

Connector

Terminal

F42

34

F26

1

Existed

Condenser

Ground

Continuity

Connector

Terminal

F26

2

Ground

Existed