Nissan Qashqai J11. Manual — part 407

ECK-188

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P0089 FUEL PRESSURE

Check the correctness of the fuel filter.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace fuel filter.

4.

CHECK FUEL RAIL PRESSURE SENSOR CONNECTION

1.

Turn ignition switch OFF.

2.

Check fuel rail pressure sensor harness connector connection.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK HIGH PRESSURE FUEL PUMP HARNESS CONNECTOR CONNECTION

Check High pressure fuel pump harness connector connection.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK ECM HARNESS CONNECTOR CONNECTION

Check ECM harness connector connection.
Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace ECM harness connector connection.

7.

CHECK HIGH PRESSURE FUEL PUMP CIRCUIT FOR OPEN AND SHORT

Check high pressure fuel pump circuit for open and short.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK FUEL FLOW ACTUATOR

Check high pressure fuel pump. Refer to

ECK-189, "Component Inspection (High Pressure Fuel Pump)"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace error-detected parts.

9.

CHECK FUEL RAIL PRESSURE SENSOR CIRCUIT FOR OPEN AND SHORT

Check fuel rail pressure sensor circuit for open and short.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace error-detected parts.

+

-

Continuity

ECM

High pressure fuel pump

Connector

Terminal

Connector

Terminal

F80

92

F133

2

Existed

+

-

Continuity

ECM

Fuel rail pressure sensor

Connector

Terminal

Connector

Terminal

F80

45

F40

3

Existed

68

2

72

1

P0089 FUEL PRESSURE

ECK-189

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

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10.

CHECK FOR FUEL LEAK

Check for fuel leakage at fuel circuit.
Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace malfunctioning parts.

11.

CHECK FUEL INJECTOR

Check fuel injector. Refer to

ECK-211, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Replace error-detected parts.

12.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

Check engine coolant temperature sensor. Refer to

ECK-201, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-41, "Intermittent Incident"

.

NO

>> Replace error-detected parts.

Component Inspection (High Pressure Fuel Pump)

INFOID:0000000010289759

1.

CHECK HIGH PRESSURE FUEL PUMP

1.

Disconnect high pressure fuel pump harness connector.

2.

Check the resistance between high pressure fuel pump terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace high pressure fuel pump.

Component Inspection (Fuel Injector)

INFOID:0000000010289760

1.

CHECK FUEL INJECTOR

1.

Turn ignition switch OFF.

2.

Disconnect fuel injector harness connector.

3.

Check the resistance between fuel injector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel injector.

High pressure fuel pump

Condition

Resistance

+

-

Terminal

1

2

Temperature

°

C (

°

F)

20 (68)

2.55 - 2.81

Ω

Fuel injector

Condition

Resistance

+

−

Terminal

1

2

Temperature: 20

°

C (68

°

F)

150 – 250k

Ω

ECK-190

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P0095 IAT SENSOR 2

P0095 IAT SENSOR 2

DTC Logic

INFOID:0000000010289761

DTC DETECTION LOGIC

NOTE:
• If DTC P0095 is displayed with DTC P1489, perform the trouble diagnosis for DTC P1489. Refer to

ECK-97, "DTC Index"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DIAGNOSIS PROCEDURE

NOTE:
DTC P0095 can not duplicate.

>> Proceed to

ECK-190, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010289762

1.

CHECK ECM HARNESS CONNECTOR CONNECTION

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 INTAKE AIR TEMPERATURE SENSOR 2 HARNESS CONNECTOR CONNECTION

1.

Turn ignition switch OFF.

2.

Check turbocharger boost sensor (with intake air temperature sensor 2) harness connector connection
F5.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK INTAKE AIR TEMPERATURE SENSOR 2

Refer to

ECK-191, "Component Inspection (Intake Air Temperature Sensor 2)"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace error-detected parts.

4.

CHECK INTAKE AIR TEMPERATURE SENSOR 2 CIRCUIT FOR OPEN AND SHORT

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0095

AIR TEMP SEN/CIRC
(Intake air temperature sen-
sor 2 circuit bank 1)
• 1.DEF: VOLTAGE TOO

LOW

• 2.DEF: VOLTAGE TOO

HIGH

• 3.DEF: IMPLAUSIBLE

SIGNAL

• 4.DEF: SIGNAL INCO-

HERENCE

• 5.DEF: IMPROPER SIG-

NAL SHAPE

• 6.DEF: NO SIGNAL SPE-

CIFIC SUBTYPE

• Signal voltage from the intake air

temperature sensor 2 remains 4.9 V
or more for 1 second or more.

• An excessively low voltage from the

intake air temperature sensor 2 is
sent to ECM.

• ECM detects improper signal.

• Harness or connectors

(Intake air temperature sensor 2 circuit is
open or shorted.

• Intake air temperature sensor 2
• ECM

P0095 IAT SENSOR 2

ECK-191

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

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Check intake air temperature sensor 2 circuit for open and short.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK EGR TEMPERATURE SENSOR

Refer to

ECK-191, "Component Inspection (Low Pressure EGR Temperature Sensor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-41, "Intermittent Incident"

.

NO

>> Replace error-detected parts.

Component Inspection (Intake Air Temperature Sensor 2)

INFOID:0000000010289763

1.

CHECK INTAKE AIR TEMPERATURE SENSOR 2

1.

Disconnect turbocharger boost sensor (with intake air temperature sensor 2) harness connector.

2.

Check resistance between turbocharger boost sensor (with intake air temperature sensor 2) harness con-
nector terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace turbocharger boost sensor (with intake air temperature sensor 2).

Component Inspection (Low Pressure EGR Temperature Sensor)

INFOID:0000000010289764

1.

CHECK LOW PRESSURE EGR TEMPERATURE SENSOR

1.

Disconnect low pressure EGR volume control valve upstream temperature sensor harness connector.

2.

Check resistance between low pressure EGR volume control valve upstream temperature sensor termi-
nals under the following conditions.

+

-

Continuity

ECM

Turbocharger boost sensor

(with Intake air temperature

sensor 2)

Connector

Terminal

Connector

Terminal

F81

102

F5

1

Existed

145

2

Turbocharger boost sensor

(with intake air temperature sensor 2)

Condition

Resistance

+

-

Terminals

2

1

Temperature

°

C (

°

F)

−

10 (14)

9.395 – 9.775

10 (50)

3.791 – 3.927

20 (68)

2.416 – 2.583

30 (86)

1.706 – 1.760

50 (122)

0.833 – 0.857