Nissan Qashqai J11. Manual - part 434

ECK-296

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P1480 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

P1480 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

DTC Logic

INFOID:0000000010289922

DTC DETECTION LOGIC

NOTE:
If DTC P1480 is displayed with DTC P1481 and P1482, perform trouble diagnosis for DTC P1481 and
P1482. 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 3 seconds.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

ECK-296, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010289923

1.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ECM harness connector connection.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR HARNESS CONNECTOR CONNEC-

TIONS

Check exhaust electric throttle control actuator harness connector connection.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR POWER SUPPLY CIRCUIT

Check the power supply of the exhaust electric throttle control actuator.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1480

EXHAUST AIR FLAP
(Exhaust air flap)
• 1.DEF: NO RESPONSE FROM 

THE VALVE MOTOR

• 2.DEF: INLET FLAP BLOCKED 

CLOSED

• 3.DEF: CLOSING OF AIR IN-

LET FLAP

• 4.DEF: INLET FLAP BLOCKED 

OPEN

• Exhaust throttle valve regulation error.
• ECM detects an incorrect closed position of 

the exhaust throttle valve.

• Exhaust throttle valve stuck
• Exhaust electric throttle control 

actuator

P1480 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

ECK-297

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

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J

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M

A

ECK

N

P

O

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform trouble diagnosis for power supply circuit.

4.

CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Check exhaust electric throttle control actuator circuit for open and short.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

DTC CONFIRMATION PROCEDURES

1.

Erase DTC.

2.

Perform DTC confirmation procedure again. Refer to 

ECK-296, "DTC Logic"

.

Is the DTC P1480 displayed again?

YES

>> GO TO 6.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

6.

CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

Perform 

ECK-303, "Component Inspection (Exhaust Throttle Position Sensor)"

, 

ECK-297, "Component

Inspection (Exhaust Throttle Control Motor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> GO TO 7.

7.

REPLACE EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace exhaust electric throttle control actuator.

2.

Perform 

ECK-137, "Work Procedure"

.

>> INSPECTION END

Component Inspection (Exhaust Throttle Control Motor)

INFOID:0000000010289924

1.

CHECK EXHAUST THROTTLE CONTROL MOTOR

1.

Disconnect exhaust electric throttle control actuator harness connector.

2.

Check the resistance between exhaust throttle control motor terminals as follows.

+

-

Voltage

Exhaust electric throttle control ac-

tuator

Connector

Terminal

F59

5

Ground

Battery voltage

+

+

Continuity

ECM

Exhaust electric throttle 

control actuator

Connector

Terminal

Connector

Terminal

F80

57

F59

1

Existed

62

2

76

3

F81

149

6

150

5

ECK-298

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P1480 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace exhaust electric throttle control actuator.

Exhaust electric throttle control actua-

tor

Resistance

+

-

Terminal

5

6

2.65 - 3.25 

Ω

P1481 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

ECK-299

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

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J

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M

A

ECK

N

P

O

P1481 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR

DTC Logic

INFOID:0000000010289925

DTC DETECTION LOGIC

NOTE:
If DTC P1481 is displayed with DTC P0651, first perform the trouble diagnosis for DTC P0651. Refer to

ECK-280, "DTC 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.

Start engine and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>>

ECK-299, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010289926

1.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ECM harness connector connection.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR HARNESS CONNECTOR CONNEC-

TIONS

Check exhaust electric throttle control actuator harness connector connection.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR POWER SUPPLY CIRCUIT

Check the power supply of the exhaust electric throttle control actuator.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1481

EXHAUST AIR FLAP CIR-
CUIT
(Exhaust air flap circuit)
• 1.DEF: —
• 2.DEF: OPERATION TEM-

PERATURE TOO HIGH

• ECM detects the exhaust electric throttle control 

valve command circuit is short to ground.

• ECM detects the exhaust electric throttle control 

valve command circuit is short to power.

• ECM detects an over temperature of the exhaust 

electric throttle control actuator.

• Harness and connectors

(Exhaust electric throttle con-
trol actuator command circuit is 
open or shorted.)

• Exhaust electric throttle control 

actuator

• Exhaust throttle valve stuck