Nissan X-Trail 32. Manual - part 892

P0524 ENGINE OIL PRESSURE

EC-697

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

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EC

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YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

4.

CHECK ENGINE OIL LEAKAGE

Check engine oil leakage. Refer to 

LU-24, "Engine Lubrication System Schematic"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK CAUSE OF ENGINE OIL CONSUMPTION

Check the following item.

>> Repair or replace error-detected parts.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000010986391

1.

CHECK EOP SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect EOP sensor harness connector.

3.

Check resistance between EOP sensor connector terminals.

Is the inspection result normal? 

YES

>> INSPECTION END.

NO

>> Replace EOP sensor. Refer to 

EC-440, "Component Parts Location"

.

Step

Inspection item

Equipment

Standard

Reference

1

PCV  valve

EC-805, "Inspection"

2

Exhaust front tube

Visual

• No blocking
• No abnormal sounds

—

3

Oil  pump

Visual

• No blocking
• No abnormal sounds

—

LU-31, "Exploded View"

4

• Piston
• Piston  pin
• Piston ring

• Piston to piston pin oil clearance
• Piston ring side clearance
• Piston ring end gap

EM-265, "Description"

5

Cylinder block

• Cylinder block top surface distortion
• Piston to cylinder bore clearance

EM-256, "Inspection"

EOP sensor

Condition

Resistance (k

Ω

)

+

−

Terminal

1

2

None

4 k

Ω

 – 10 k

Ω

3

2  k

Ω

 – 8 k

Ω

2

1

4  k

Ω

 – 10 k

Ω

3

1  k

Ω

 – 3 k

Ω

3

1

2  k

Ω

 – 8 k

Ω

2

1  k

Ω

 – 3 k

Ω

EC-698

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0603, P062F ECM

P0603, P062F ECM

DTC Description

INFOID:0000000010986398

DTC DETECTION LOGIC

POSSIBLE CAUSE

DTC P0603

• Harness or connectors (ECM power supply circuit is open or shorted.)
• ECM

DTC P062F

ECM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

Perform the following procedure before performing DTC Confirmation Procedure.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P062F

1.

Start engine and wait at least 10 seconds.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Repeat steps 1 and 2 for 4 times.

4.

Turn ignition switch ON.

5.

Erase DTC.

6.

Turn ignition switch OFF and wait at least 10 seconds.

7.

Start engine and wait at least 10 seconds.

8.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-699, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0603

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON and wait at least 10 seconds.

3.

Turn ignition switch OFF and wait at least 5 minutes.

4.

Turn ignition switch ON and wait at least 10 seconds.

5.

Repeat steps 3 and 4 for 5 times.

6.

Turn ignition switch ON.

7.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-699, "Diagnosis Procedure"

.

NO

>> INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0603

ECM BACK UP/CIRCUIT
[Internal Control Module Keep Alive Memo-
ry (KAM) Error]

ECM buck up system does not function properly.

P062F

CONTROL MODULE
(Internal control module EEPROM error)

EEPROM (built-in microcomputer) system internal ECM does not function 
properly.

P0603, P062F ECM

EC-699

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

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Diagnosis Procedure

INFOID:0000000010986399

1.

INSPECTION START

Check that the battery negative terminal is not disconnected during ignition switch ON.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

ERASE DTC

1.

Start the engine and let it idle at least 10 seconds.

2.

Turn ignition switch OFF.

3.

Repeat steps 1 and 2 for 4 times.

4.

Erase DTC.

5.

Turn ignition switch OFF and wait at least 10 seconds.

6.

Start the engine and let it idle for 10 seconds.

7.

Check 1st trip DTC.

Is DTC P062F detected again?

YES

>> Replace ECM. Refer to 

EC-806, "Removal and Installation"

.

NO

>> INSPECTION END

3.

CHECK ECM POWER SUPPLY AND GROUND CIRCUIT

Check ECM power supply and ground circuit. Refer to 

EC-573, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC confirmation procedure. Refer to 

EC-698, "DTC Description"

.

Is the DTC P0603 or P062F detected again?

YES

>> Replace ECM. Refer to 

EC-806, "Removal and Installation"

.

NO

>> INSPECTION END

EC-700

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0604 ECM

P0604 ECM

DTC Description

INFOID:0000000010986400

DTC DETECTION LOGIC

POSSIBLE CAUSE

ECM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition
switch ON.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON (engine stopped) and wait least 20 minutes.

CAUTION:

Never start engine during this procedure.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-700, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010986401

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC confirmation procedure. Refer to 

EC-700, "DTC Description"

.

Is the 1st trip DTC P0604 displayed again?

YES

>> Replace ECM. Refer to 

EC-806, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0604

ECM
[Internal control module random access 
memory (RAM) error]

Malfunction in the internal RAM of ECM.