Nissan Versa Note. Manual - part 364

EC-438

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

FUEL PUMP

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-31, "Removal and Installation"

.

NO

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

Component Inspection

INFOID:0000000009020931

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-6, "Exploded View"

.

Terminals

Resistance [at 25

°C (77°F)]

1 and 3

0.2 - 5.0 

Ω

IGNITION SIGNAL

EC-439

< 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:0000000009020932

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-439, "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-439, "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-439, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009020933

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-157, "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-440

< 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-443, "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

IGNITION SIGNAL

EC-441

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

3. Turn ignition switch ON.

4. Check the voltage between ignition coil harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

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

8.

CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Check the continuity between ignition coil harness connector and ground.

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

YES

>> GO TO 9.

NO

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

9.

CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Disconnect ECM harness connector.

2. Check the continuity between ECM harness connector and ignition coil harness connector.

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

YES

>> GO TO 10.

NO

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

10.

CHECK IGNITION COIL WITH POWER TRANSISTOR

Refer to 

EC-442, "Component Inspection (Ignition Coil with Power Transistor)"

.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-47, "Removal and Installa-

tion"

.

11.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

Ignition coil

Ground

Voltage

Cylinder

Connector

Terminal

1

F34

3

Ground

Battery voltage

2

F35

3

3

F36

3

4

F37

3

Ignition coil

Ground

Continuity

Cylinder

Connector

Terminal

1

F34

2

Ground

Existed

2

F35

2

3

F36

2

4

F37

2

Ignition coil

ECM

Continuity

Cylinder

Connector

Terminal

Connector

Terminal

1

F34

1

F10

17

Existed

2

F35

1

18

3

F36

1

22

4

F37

1

21