Nissan Qashqai J11. Manual - part 420

 

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Nissan Qashqai J11. Manual - part 420

 

 

ECK-240

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P0409 EGR VOLUME CONTROL VALVE POSITION SENSOR

P0409 EGR VOLUME CONTROL VALVE POSITION SENSOR

DTC Logic

INFOID:0000000010289827

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 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-240, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010289828

1.

CHECK LOW PRESSURE EGR VALVE AND HIGH PRESSURE EGR VALVE

Visually check low pressure EGR valve and high pressure EGR 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 LOW PRESSURE EGR VALVE AND HIGH PRESSURE EGR VALVE HARNESS CONNECTOR

CONNECTIONS

Check low pressure EGR valve and high pressure EGR valve harness connector connection.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK LOW PRESSURE EGR VALVE AND HIGH PRESSURE EGR VALVE POSITION SENSOR CIR-

CUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0409

EGR VALVE POSITION SEN CIRC
(Exhaust gas recirculation sensor 
“A” circuit)
• 1.DEF: SIGNAL INCOHERENCE

• A Voltage of EGR position sensor 

remains more than 4.8 V.

• A Voltage of EGR position sensor 

remains less than 0.35 V.

• Harness or connectors

(High pressure EGR volume control valve 
position sensor circuit is open or shorted.)
(Low pressure EGR volume control valve 
position sensor circuit is open or shorted.)

• High pressure EGR volume control valve 

position sensor

• Low pressure EGR volume control valve 

position sensor

• ECM

P0409 EGR VOLUME CONTROL VALVE POSITION SENSOR

ECK-241

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

ECK

N

P

O

2.

Check low pressure EGR valve and high pressure EGR valve position sensor circuit for open and short.

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-240, "DTC Logic"

.

Is the DTC P0409 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-241, "Component Inspection (EGR Volume Control Valve Motor)"

.

Is the inspection result normal?

YES

>> Replace high pressure EGR valve position sensor and low pressure EGR valve position sensor.

NO

>> Replace error-detected parts. 

Component Inspection (EGR Volume Control Valve Motor)

INFOID:0000000010289829

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 and high pressure EGR valve terminals as follows.

HIGH PRESSURE EGR VOLUME CONTROL VALVE

+

-

Continuity

ECM

High pressure EGR volume 

control valve

Connector

Terminal

Connector

Terminal

F80

69

F60

6

Existed

70

3

75

1

+

-

Continuity

ECM

Low pressure EGR volume 

control valve

Connector

Terminal

Connector

Terminal

F80

65

F34

1

Existed

66

2

79

3

High pressure EGR volume 

control valve

Condition

Resistance (Approx.)

+

-

Terminal

2

5

Temperature 

°

C (

°

F)

23 (73)

2.4 

Ω

ECK-242

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P0409 EGR VOLUME CONTROL VALVE POSITION SENSOR

LOW PRESSURE EGR VOLUME CONTROL VALVE

Is the inspection result normal?

YES

>> INSPECTION END

NO

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

Low pressure EGR volume 

control valve

Condition

Resistance (Approx.)

+

-

Terminal

5

6

Temperature 

°

C (

°

F)

20 (68)

1.69 

Ω

P0470 EXHAUST GAS PRESSURE SENSOR

ECK-243

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

ECK

N

P

O

P0470 EXHAUST GAS PRESSURE SENSOR

DTC Logic

INFOID:0000000010289830

DTC DETECTION LOGIC

NOTE:
If DTC P0470 is displayed with DTC P0651, and P2263, perform the trouble diagnosis for DTC P0651,
and P2263. 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-243, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010289831

1.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ECM harness connector connection F80.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK EXHAUST GAS PRESSURE SENSOR 1 HARNESS CONNECTOR CONNECTIONS

Check exhaust gas pressure sensor harness connector connection F110.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK EXHAUST GAS PRESSURE SENSOR 1 POWER SUPPLY CIRCUIT

Check the power supply of the exhaust gas pressure sensor 1.

Is the inspection result normal?

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0470

TBN UPSTR PRS SEN CIRC
(Exhaust pressure sensor “A” circuit)
• 1.DEF: VOLTAGE TOO LOW
• 2.DEF: VOLTAGE TOO HIGH

• An excessively low voltage from the sensor is 

sent to ECM.

• An excessively high voltage from the sensor 

is sent to ECM.

• Exhaust gas pressure sensor 

1

• Turbocharger
• Exhaust manifold
• Exhaust  tube
• ECM

+

-

Continuity

Exhaust gas pressure sensor 1

Connector

Terminal

F110

3

Ground

Existed

 

 

 

 

 

 

 

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