Nissan X-Trail 32. Instruction — part 795
P0524 ENGINE OIL PRESSURE
EC-309
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> GO TO 3.
NO
>> Check oil pump. Refer to
3.
CHECK EOP SENSOR
Check EOP sensor. Refer to
EC-306, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace EOP sensor. Refer to
.
4.
CHECK ENGINE OIL LEAKAGE
Check engine oil leakage. Refer to
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace malfunctioning part.
5.
CHECK CAUSE OF ENGINE OIL CONSUMPTION
Check the following item.
>> Repair or replace malfunctioning part.
Component Inspection
INFOID:0000000010775202
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?
Step
Inspection item
Equipment
Standard
Reference
1
PCV valve
2
Exhaust front tube
Visual
• No blocking
• No abnormal sounds
—
3
Oil pump ASSY
Visual
• No blocking
• No abnormal sounds
—
4
• Piston
• Piston pin
• Piston ring
• Piston to piston pin oil clearance
• Piston ring side clearance
• Piston ring end gap
5
Cylinder block
• Cylinder block top surface distortion
• Piston to cylinder bore clearance
EOP sensor
Resistance
+
−
Terminal
1
2
4 - 10 k
Ω
3
2 - 8 k
Ω
2
1
4 - 10 k
Ω
3
1 - 3 k
Ω
3
1
2 - 8 k
Ω
2
1 - 3 k
Ω
EC-310
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P0524 ENGINE OIL PRESSURE
YES
>> INSPECTION END
NO
>> Replace EOP sensor. Refer to
.
P0603, P062F ECM
EC-311
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P0603, P062F ECM
DTC Description
INFOID:0000000010775203
DTC DETECTION LOGIC
POSSIBLE CAUSE
DTC P0603
• Harness or connectors (ECM power supply circuit is open or shorted.)
• ECM
DTC P062F
ECM
FAIL-SAFE
P0603
P062F
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 for 10 seconds.
8.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
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.
Engine operating condition in fail-safe mode
Fail safe mode
Vehicle behavior
Traveling con-
trol mode
Accelerator an-
gle variation
control
ECM controls the accelerator pedal depression speed to make it slower than actual speed. This
causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE:
ECM does not control the accelerator pedal releasing speed.
Engine output
control
ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle
speed to encourage the driver to repair malfunction.
EC-312
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P0603, P062F ECM
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
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010775204
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-430, "Removal and Installation"
NO
>> INSPECTION END
3.
CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to
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
.
Is the DTC P0603 or P062F detected again?
YES
>> Replace ECM. Refer to
EC-430, "Removal and Installation"
NO
>> INSPECTION END
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