Nissan March K13. Manual - part 186

 

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Nissan March K13. Manual - part 186

 

 

P0400 EGR FUNCTION

EC-205

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

5.

CHECK EGR PASSAGE

Check EGR passage for clogging and cracks.
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace EGR passage.

6.

CHECK EGR VOLUME CONTROL VALVE

Check EGR volume control valve. Refer to 

EC-207, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace EGR volume control valve. Refer to 

EM-26, "Exploded View"

.

7.

CHECK EGR TEMPERATURE SENSOR AND CIRCUIT

Perform DTC Confirmation Procedure for DTC P0405, P0406. Refer to 

EC-209, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace malfunctioning part.

8.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-33, "Intermittent Incident"

.

>> Repair or replace malfunctioning part.

EC-206

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

P0403 EGR VOLUME CONTROL VALVE

P0403 EGR VOLUME CONTROL VALVE

DTC Logic

INFOID:0000000005995493

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and warm it up to normal operating temperature.

2.

Rev engine from idle to 2,000 rpm.

3.

Repeat step 2 for 10 times.

4.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-206, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005995495

1.

CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect EGR volume control valve harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between EGR volume control valve harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

DETECT MALFUNCTIONING PART

Check harness for open or short between EGR volume control valve and IPDM E/R.

>> Repair or replace harness or connectors.

3.

CHECK EGR VOLUME CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between EGR volume control valve harness connector and ECM harness connector.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0403

EGR volume control valve circuit

An improper voltage signal is sent to 
ECM through the valve

• Harness or connectors

(The EGR volume control valve circuit is 
open or shorted.)

• EGR volume control valve

EGR volume control valve

Ground

Voltage

Connector

Terminal

F88

2

Ground

Battery voltage

5

P0403 EGR VOLUME CONTROL VALVE

EC-207

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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 EGR VOLUME CONTROL VALVE

Check egr volume control valve. Refer to 

EC-207, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace EGR volume control valve. Refer to 

EM-26, "Exploded View"

.

5.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-33, "Intermittent Incident"

.

>> Repair or replace malfunctioning part.

Component Inspection

INFOID:0000000005995496

1.

CHECK EGR VOLUME CONTROL VALVE

1.

Turn ignition switch OFF.

2.

Disconnect EGR volume control valve harness connector.

3.

Check resistance between EGR volume control valve terminal as follows.

Is the inspection result normal?

YES

>> Replace EGR volume control valve. Refer to 

EM-26, "Exploded View"

.

NO-1

>>

With CONSULT-III: GO TO 2.

NO-2

>>

Without CONSULT-III: GO TO 3.

2.

CHECK EGR VOLUME CONTROL VALVE OPERATION

1.

Remove EGR volume control valve.

2.

Reconnect ECM harness connector and EGR volume control valve harness connector.

3.

Turn ignition switch ON.

4.

Perform “EGR VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III.

5.

Check that EGR volume control valve shaft moves smoothly for-
ward and backward according to the valve opening steps.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace EGR volume control valve. Refer to 

EM-26,

"Exploded View"

.

EGR volume control valve

ECM

Continuity

Connector

Terminal

Connector

Terminal

F88

1

F7

12

Existed

3

16

4

20

6

24

Terminals

Resistance [at 20

°

C (68

°

F)]

2 and 1, 3

20 – 24 

5 and 4, 6

PBIA9386J

EC-208

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

P0403 EGR VOLUME CONTROL VALVE

3.

CHECK EGR VOLUME CONTROL VALVE CLOGGING

1.

Remove EGR volume control valve.

2.

Reconnect ECM harness connector and EGR volume control valve harness connector.

3.

Turn ignition switch ON and OFF.

4.

Check that EGR volume control valve shaft moves smoothly for-
ward and backward according to the ignition switch position.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace EGR volume control valve. Refer to 

EM-26,

"Exploded View"

.

PBIA9386J

 

 

 

 

 

 

 

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