Nissan March K13. Manual - part 206

FUEL INJECTOR

EC-285

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

C

D

E

F

G

H

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EC

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FUEL INJECTOR

Component Function Check

INFOID:0000000005989395

1.

INSPECTION START

Turn ignition switch to START.
Is any cylinder ignited?

YES

>> GO TO 2.

NO

>> Go to 

EC-285, "Diagnosis Procedure"

.

2.

CHECK FUEL INJECTOR FUNCTION

With CONSULT-III

1.

Start engine.

2.

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

3.

Make sure that each circuit produces a momentary engine speed drop.

Without CONSULT-III

1.

Let engine idle.

2.

Listen to each fuel injector operating sound.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-285, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005989396

1.

CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect fuel injector harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between fuel injector harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors E8, F1
• IPDM E/R connector E15
• 15 A fuse (No. 62)
• 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.

Clicking noise should be heard.

PBIB3332E

Fuel injector

Ground

Voltage

Cylinder

Connector

Terminal

1

F37

1

Ground

Battery voltage

2

F38

1

3

F39

1

4

F40

1

EC-286

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

FUEL INJECTOR

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-286, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning fuel injector.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-33, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair or replace harness or connectors.

Component Inspection

INFOID:0000000005989397

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.

Fuel injector

ECM

Continuity

Cylinder

Connector

Terminal

Connector

Terminal

1

F37

2

F7

31

Existed

2

F38

2

30

3

F39

2

29

4

F40

2

25

Terminals

Resistance

1 and 2

11.1 - 14.5 

Ω

 [at 10 - 60

°

C (50 - 140

°

F)]

FUEL PUMP

EC-287

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

C

D

E

F

G

H

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K

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EC

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FUEL PUMP

Component Function Check

INFOID:0000000005989398

1.

CHECK FUEL PUMP FUNCTION

1.

Turn ignition switch ON.

2.

Pinch fuel feed hose (1) with two fingers.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>>

EC-287, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006066587

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection M95. Refer to Ground Inspection in 

GI-35, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK FPCM POWER SUPPLY CIRCUIT-I

1.

Turn ignition switch OFF.

2.

Disconnect FPCM harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between FPCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 3.

3.

CHECK FPCM 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 FPCM harness connector.

4.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.

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

JSBIA0377ZZ

FPCM

Ground

Voltage

Connector

Terminal

B31

10

Ground

Battery voltage

IPDM E/R

FPCM

Voltage

Connector

Terminal

Connector

Terminal

E5

13

B31

10

Battery voltage

EC-288

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

FUEL PUMP

• Harness connectors B3, E121 (LHD models)
• Harness connectors B1, M7 (RHD models)
• Harness connectors M6, E106 (RHD models)
• IPDM E/R harness connector E5
• Harness for open or short between FPCM and IPDM E/R

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

5.

CHECK FPCM POWER SUPPLY CIRCUIT-II

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between IPDM E/R 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 power in harness or connectors.

6.

CHECK FUSE

1.

Disconnect 15A fuse (No. 41) from IPDM E/R.

2.

Check 15 A fuse.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace 15 A fuse.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-33, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

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

8.

CHECK FPCM GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Check the continuity between FPCM harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

9.

CHECK FPCM INPUT AND OUTPUT CIRCUITS FOR OPEN AND SHORT

1.

Disconnect ECM harness connector.

2.

Check the continuity between FPCM harness connector and ECM harness connector.

3.

Also check harness for short to ground and short to power.

IPDM E/R

Ground

Voltage

Connector

Terminal

E7

77

Ground

Battery voltage

FPCM

Ground

Continuity

Connector

Terminal

B31

5

Ground

Existed

FPCM

ECM

Continuity

Connector

Terminal

Connector

Terminal

B31

8

M160

125

Existed

9

112