Nissan Qashqai (2007-2010). Manual — part 462

P0381 GLOW CONTROL SYSTEM

EC-1367

< COMPONENT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK GLOW RELAY OUTPUT CIRCUIT FOR OPEN AND SHORT

1.

Disconnect glow plug harness connector.

2.

Check the continuity between glow plug harness connector and ECM harness connector.

3.

Also check harness for short to ground and 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 GLOW PLUG

Refer to

EC-1371, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace malfunctioning glow plug.

7.

CHECK INTERMITTENT INCIDENT

Refer to

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace glow relay.

NO

>> Repair or replace.

Component Inspection

INFOID:0000000001091182

1.

CHECK GLOW PLUG

1.

Turn ignition switch OFF.

2.

Disconnect glow plug harness connector.

3.

Check resistance between glow plug terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning glow plug.

Glow relay

ECM

Continuity

Connector

Terminal

Connector

Terminal

F94

8

F68

76

Existed

Glow relay

Glow plug

Continuity

Cylinder

Connector

Terminal

Connector

Terminal

1

F94

2

F95

1

Existed

2

7

F96

1

3

1

F97

1

4

6

F98

1

Terminal

Resistance

1 and engine ground

Not less than 2

Ω

[at 20

°

C (68

°

F)]

EC-1368

< COMPONENT DIAGNOSIS >

[K9K]

P0409 EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR

P0409 EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR

DTC Logic

INFOID:0000000001115080

DTC DETECTION LOGIC

NOTE:
• If DTC P0409 is displayed with DTC P0651, first perform trouble diagnosis for DTC P0651. Refer to

EC-1395, "DTC Logic"

.

• Conditions for applying the diagnostic procedure to the stored DTCs:

The DTC is declared present after the engine started.

• If the DTC is present:
- Malfunction indicator (Yellow) lights up.

Diagnosis Procedure

INFOID:0000000000956107

1.

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ground connection E17. Refer to Ground inspection in

GI-41, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT

1.

Disconnect EGR volume control valve harness connector.

2.

Turn ignition switch ON.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

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

3.

CHECK EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR GROUND CIRCUIT FOR

OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between EGR volume control valve control position sensor 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.

DTC No.

Trouble diagnosis name

Possible Cause

P0409

EGR VOLUME CONTROL VALVE CONTROL POSITION SEN-
SOR CIRCUIT
• CO.0: Open circuit or short circuit to ground
• CC.1: Short circuit to +12V

• Harness or connectors

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

• EGR volume control valve control position sensor

EGR volume control valve control position sensor

Ground

Voltage

Connector

Terminal

F99

1

Ground

Approx. 5V

EGR volume control valve control posi-

tion sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F99

3

F85

82

Existed

P0409 EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR

EC-1369

< COMPONENT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

4.

CHECK EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR INPUT CIRCUIT FOR OPEN

AND SHORT

1.

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

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK INTERMITTENT INCIDENT

Refer to

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace.

6.

REPLACE EGR VOLUME CONTROL VALVE

1.

Replace the EGR volume control valve.

2.

Perform

EC-1274, "EGR VOLUME CONTROL VALVE CLOSED POSITION LEARNING : Special Repair

Requirement"

>> INSPECTIO END

EGR volume control valve control posi-

tion sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F99

5

F85

86

Existed

EC-1370

< COMPONENT DIAGNOSIS >

[K9K]

P0487 EGR VOLUME CONTROL VALVE

P0487 EGR VOLUME CONTROL VALVE

DTC Logic

INFOID:0000000001115081

DTC DETECTION LOGIC

NOTE:
• Conditions for applying the diagnostic procedure to the stored DTCs:

The DTC is declared present with the engine idle speed.

Diagnosis Procedure

INFOID:0000000000956112

1.

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ground connection E17. Refer to Ground inspection in

GI-41, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK EGR VOLUME CONTROL VALVE CONTROL MOTOR CIRCUIT

1.

Disconnect EGR volume control valve harness connector.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between the following terminals.

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

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

3.

CHECK EGR VOLUME CONTROL VALVE

Refer to

EC-1375, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

REPLACE EGR VOLUME CONTROL VALVE

1.

Replace the EGR volume control valve.

2.

Perform

EC-1274, "EGR VOLUME CONTROL VALVE CLOSED POSITION LEARNING : Special Repair

Requirement"

>> INSPECTIO END

DTC No.

Trouble diagnosis name

Possible cause

P0487

EGR VOLUME CONTROL VALVE CIRCUIT
• CO: Open circuit
• CC.0: Short circuit to ground
• CC.1: Short circuit to +12V
• 1.DEF: Values outside the level
• CC: Short circuit

• Harness or connectors

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

• EGR volume control motor valve

EGR volume control valve

ECM

Continuity

Connector

Terminal

Connector

Terminal

F99

2

F68

95

Existed

96

Not existed

6

95

Not existed

96

Existed