Nissan Qashqai J11. Manual - part 419

ECK-236

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P0402 EGR VOLUME CONTROL VALVE

HIGH PRESSURE EGR VOLUME CONTROL VALVE

LOW PRESSURE EGR VOLUME CONTROL VALVE

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

DTC CONFIRMATION PROCEDURE

1.

Erase DTC.

2.

Perform DTC confirmation procedure again. Refer to 

ECK-235, "DTC Logic"

.

Is the DTC P0402 displayed again?

YES

>> GO TO 6.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

6.

CHECK LOW PRESSURE EGR VALVE MOTOR AND HIGH PRESSURE EGR VALVE MOTOR

Refer to 

ECK-239, "Component Inspection (EGR Volume Control Valve Motor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace error-detected parts. 

Component Inspection (EGR Volume Control Valve Motor)

INFOID:0000000010289823

1.

CHECK LOW PRESSURE EGR VALVE MOTOR AND HIGH PRESSURE EGR VALVE MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect low pressure EGR valve and high pressure EGR valve harness connector.

3.

Check resistance between low pressure EGR valve terminals and high pressure EGR valve terminals as
follows.

HIGH PRESSURE EGR VOLUME CONTROL VALVE

LOW PRESSURE EGR VOLUME CONTROL VALVE

Is the inspection result normal?

+

-

Continuity

ECM

High pressure EGR volume 

control valve

Connector

Terminal

Connector

Terminal

F81

147

F60

2

Existed

148

5

+

-

Continuity

ECM

Low pressure EGR volume 

control valve

Connector

Terminal

Connector

Terminal

F81

151

F34

6

Existed

152

5

High pressure EGR volume 

control valve

Condition

Resistance (Approx.)

+

-

Terminal

2

5

Temperature 

°

C (

°

F)

23 (73)

2.4 

Ω

Low pressure EGR volume 

control valve

Condition

Resistance (Approx.)

+

-

Terminal

5

6

Temperature 

°

C (

°

F)

20 (68)

1.69 

Ω

P0402 EGR VOLUME CONTROL VALVE

ECK-237

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

ECK

N

P

O

YES

>> INSPECTION END

NO

>> Replace low pressure EGR valve or high pressure EGR valve.

ECK-238

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P0403 EGR VOLUME CONTROL VALVE

P0403 EGR VOLUME CONTROL VALVE

DTC Logic

INFOID:0000000010289824

DTC DETECTION LOGIC

NOTE:
If DTC P0380 is displayed with DTC P0641, first perform the trouble diagnosis for DTC P0641 Refer to

ECK-97, "DTC Index"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

ECK-238, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010289825

1.

CHECK EGR VOLUME CONTROL VALVE

Visually check EGR volume control valve for chipping.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

Check ECM harness connector connection.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK EGR VOLUME CONTROL VALVE HARNESS CONNECTOR CONNECTIONS

Check EGR volume control valve harness connector connection.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK EGR VOLUME CONTROL VALVE CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Check EGR volume control valve circuit for open and short.

DTC No.

CONSULT screen terms

(Trouble diagnosis con-

tent)

DTC detecting condition

Possible cause

P0403

EGR VLV CMD CIRC
(Exhaust gas recircula-
tion “A” control circuit)
• 1.DEF: —
• 2.DEF: OPERATION 

TEMPERATURE TOO 
HIGH

ECM detects EGR valve error.

• Harness or connectors

(EGR valve command circuit is open 
or shorted.)

• Low pressure EGR valve
• High pressure EGR valve
• ECM

P0403 EGR VOLUME CONTROL VALVE

ECK-239

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

ECK

N

P

O

HIGH PRESSURE EGR VOLUME CONTROL VALVE

LOW PRESSURE EGR VOLUME CONTROL VALVE

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

DTC CONFIRMATION PROCEDURE

1.

Erase DTC.

2.

Perform DTC confirmation procedure again. Refer to 

ECK-238, "DTC Logic"

.

Is the DTC P0403 displayed again?

YES

>> GO TO 6.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

6.

CHECK EGR VOLUME CONTROL VALVE MOTOR

Refer to 

ECK-239, "Component Inspection (EGR Volume Control Valve Motor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace error-detected parts. 

Component Inspection (EGR Volume Control Valve Motor)

INFOID:0000000010289826

1.

CHECK EGR VOLUME CONTROL VALVE MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect EGR volume control valve harness connector.

3.

Check resistance between EGR volume control valve terminals as follows.

HIGH PRESSURE EGR VOLUME CONTROL VALVE

LOW PRESSURE EGR VOLUME CONTROL VALVE

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace EGR volume control valve.

+

-

Continuity

ECM

High pressure EGR volume 

control valve

Connector

Terminal

Connector

Terminal

F81

147

F60

2

Existed

148

5

+

-

Continuity

ECM

Low pressure EGR volume 

control valve

Connector

Terminal

Connector

Terminal

F81

151

F34

6

Existed

152

5

EGR volume control valve

Resistance (Approx.)

+

-

Terminal

2

5

2.4 

Ω

EGR volume control valve

Resistance (Approx.)

+

-

Terminal

5

6

1.69 

Ω