Nissan X-Trail 32. Manual - part 1016

P2452 DIESEL PARTICULATE FILTER PRESSURE SENSOR

EC-1193

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P2452 DIESEL PARTICULATE FILTER PRESSURE SENSOR

DTC Description

INFOID:0000000010935899

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Diesel particulate filter differential pressure sensor circuit is open or shorted.)
• Diesel particulate filter differential pressure sensor 

FAIL-SAFE

• EGR valve is closed position
• Throttle control motor is opened
• Prohibit DPF regeneration

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P2452 is displayed with DTC P0641, P0651 or P0697, first perform the trouble diagnosis for DTC
P0641, P0651 or P0697.
Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-908, "DTC Index"

.

NO

>> GO TO 2.

2.

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 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-1193, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-1

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010935900

1.

CHECK DTC PRIORITY

If DTC P2452 is displayed with DTC P0641, P0651 or P0697, first perform the trouble diagnosis for DTC
P0641, P0651 or P0697.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-908, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check the ECM harness connector connection.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

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 fil-

ter pressure sensor is sent to ECM.

• An excessively low voltage (less than 0.18 V) from diesel particulate filter 

pressure sensor is sent to ECM.

EC-1194

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P2452 DIESEL PARTICULATE FILTER PRESSURE SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK DPF (DIESEL PARTICULATE FILTER) DIFFERENTIAL PRESSURE SENSOR HARNESS CON-

NECTOR CONNECTIONS

Check the DPF differential pressure sensor harness connector connection.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK DPF DIFFERENTIAL PRESSURE SENSOR POWER SUPPLY

Check the DPF differential pressure sensor power supply.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

CHECK DPF DIFFERENTIAL PRESSURE SENSOR POWER SUPPLY AND GROUND CIRCUIT

Check the DPF differential pressure sensor power supply and ground circuit for open and short.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace error-detected parts.

6.

CHECK DPF DIFFERENTIAL PRESSURE SENSOR SIGNAL CIRCUIT

Check the DPF differential pressure sensor signal circuit for open and short.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

REPLACE DPF DIFFERENTIAL PRESSURE SENSOR

Replace DPF differential pressure sensor.

>> GO TO 8.

8.

PERFORM DTC CONFIRMATION PROCEDURE

+

-

Voltage

(Approx.)

DPF differential pressure sensor

Connector

Terminal

F88

1

Ground

5.0 V

+

+

Continuity

ECM

DPF differential pressure 

sensor

Connector

Terminal

Connector

Terminal

F118

100

F88

1

Existed

117

2

+

+

Continuity

ECM

DPF differential pressure 

sensor

Connector

Terminal

Connector

Terminal

F118

122

F88

3

Existed

P2452 DIESEL PARTICULATE FILTER PRESSURE SENSOR

EC-1195

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Perform DTC Confirmation Procedure.
See 

EC-1193, "DTC Description"

.

Is the DTC P2452 detected again?

YES

>> Replace ECM. Refer to 

EC-1226, "Removal and Installation"

.

NO

>> INSPECTION END

EC-1196

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P2504 CHARGING SYSTEM VOLTAGE

P2504 CHARGING SYSTEM VOLTAGE

DTC Description

INFOID:0000000010935901

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors
• Alternator

FAIL-SAFE

Not applicable

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 seconds.

2.

Check DTC.

Is the DTC detected?

YES

>> Proceed to 

EC-1196, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-1

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010935902

1.

CHECK DRIVE BELT

Check drive belt. Refer to 

EM-301, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Adjust or replace drive belt.

2.

CHECK CHARGING SYSTEM

Check charging system. Refer to 

CHG-14, "Work Flow"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace error-detected part.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P2504

CHARGING SYSTEM VOLTAGE
(Charging system voltage high)
• 1.DEF: SIGNAL OUTSIDE UPPER LIMIT
• 2.DEF: SIGNAL OUTSIDE LOWER LIM-

IT

• 3.DEF:  —
• 4.DEF: MECHANICAL LINKAGE FAIL-

URE

• 5.DEF: OPERATION TEMPERATURE 

TOO HIGH

ECM detects poor performance of alternator.