Nissan Qashqai J11. Manual - part 452

ECK-368

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P2263 TC SYSTEM

YES

>> GO TO 5.

NO

>> Replace turbocharger boost sensor.

5.

CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE

Check the turbocharger boost control solenoid valve. Refer to 

ECK-183, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK TURBOCHARGER

Check the turbocharger.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK HIGH PRESSURE EGR CIRCUIT AND LOW PRESSURE EGR CIRCUIT

Check the low pressure EGR circuit and high pressure EGR circuit.
Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Repair or replace error-detected parts.

P2264 WATER IN FUEL SENSOR

ECK-369

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

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ECK

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P2264 WATER IN FUEL SENSOR

DTC Logic

INFOID:0000000010290043

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.

Start engine.

2.

Drive the vehicle at least 15 seconds at 5 km/h (3.11 MPH) or more.

CAUTION:

Always drive the vehicle at safe speed.

3.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

ECK-370, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010290044

1.

PERFORM DIESEL FUEL FILTER WATER DRAINING

Perform diesel fuel filter water draining. Refer to 

FL-34, "Water Draining"

.

Water has been detected in the fuel filter?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK FUEL CONFORMITY

Check fuel conformity.

Is fuel normal?

YES

>> Replace fuel filter.

NO

>> Drain the fuel circuit and replace the fuel filter.

3.

CHECK HARNESS CONNECTOR CONNECTIONS

Check fuel heater and water level sensor harness connector connections.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK FUEL HEATER AND WATER LEVEL SENSOR POWER SUPPLY AND GROUND CIRCUIT

Check water level sensor power supply and ground circuit for open and short.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P2264

WTR DIESEL DETECTR
(Water in fuel sensor circuit)
• CO: OPEN CIRCUIT ON THE 

LINE OR PRESENCE OF WA-
TER IN THE DIESEL

• A signal from the detection sensor is 

sent to ECM for 8 seconds.

• ECM detects detection sensor circuit is 

open circuit for 8 seconds.

• Harness or connectors

(Detection sensor circuit is open.)

• Fuel heater and water in fuel level 

sensor

• Fuel filter

ECK-370

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P2264 WATER IN FUEL SENSOR

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK FUEL HEATER AND WATER LEVEL SENSOR CIRCUIT

Check water level sensor circuit for open and short.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK INTERMITTENT INCIDENT

Perform 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>>  Replace fuel heater and water level sensor.

NO

>> Repair or replace error-detected parts.

+

-

Voltage

Fuel heater and water level sensor

Connector

Terminal

F191

2

Ground

Battery voltage

5

+

-

Continuity

ECM

Fuel heater and water level 

sensor

Connector

Terminal

Connector

Terminal

E59

24

F191

1

Existed

+

-

Continuity

Fuel heater and water level sensor

Connector

Terminal

E191

3

Ground

Existed

4

P2452 DIESEL PARTICULATE FILTER PRESSURE SENSOR

ECK-371

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

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P2452 DIESEL PARTICULATE FILTER PRESSURE SENSOR

DTC Logic

INFOID:0000000010290045

DTC DETECTION LOGIC

NOTE:
If DTC P2452 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.

Turn ignition switch ON and wait at least 5 second.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

ECK-372, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010290046

1.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check the ECM harness connector connection.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK DPF DIFFERENTIAL PRESSURE SENSOR HARNESS CONNECTOR CONNECTIONS

Check the DPF differential pressure sensor harness connector connection.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK DPF DIFFERENTIAL PRESSURE SENSOR POWER SUPPLY

Check the DPF differential pressure sensor power supply.

Is the inspection result normal?

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P2452

P/FLT DIFF PRS SEN
(Diesel particulate filter pressure 
sensor “A” circuit)
• 1.DEF: VOLTAGE TOO LOW
• 2.DEF: VOLTAGE TOO HIGH

• An excessively high voltage (more than 

4.9 V) from diesel particulate filter pres-
sure sensor is sent to ECM.

• An excessively low voltage (less than 

0.23 V) from diesel particulate filter 
pressure sensor is sent to ECM.

• Harness or connectors

(DPF differential pressure sensor cir-
cuit is open or shorted.)

• DPF differential pressure sensor 

+

-

Voltage

(Approx.)

DPF differential pressure sensor

Connector

Terminal

F11

1

Ground

5.0 V