DTC P253F:00 [SKYACTIV-D 1.5]

id0102q2154400

DTC P253F:00

Engine oil deteriorated
DETECTION CONDITION
•  If any of the following conditions are met:
Note
•  The PCM determines that the engine oil has deteriorated due to an engine oil pressure decrease. Dilution of the oil from fuel becoming mixed in can be considered a cause of the engine oil pressure decrease.
―  The amount of engine oil dilution exceeds the specified value during the diesel particulate filter regeneration control. (European (L.H.D./U.K.))
―  The amount of engine oil dilution exceeds the specified value (fluctuates by ambient temperature).
―  With the following driving conditions met, the engine oil pressure decreases 70 kPa {0.71 kgf/cm2, 10 psi} or more compared to when the engine oil was replaced:
MONITORING CONDITIONS
•  Engine speed: 1,275—1,325 rpm
•  Engine oil temperature: 89.5—90.5 °C {193.1—194.9 °F}
•  Traveled distance after engine oil replacement is 12,000 km {7,456.5 mile} or more
Diagnostic support note
•  This is an intermittent monitor (other).
•  The check engine light does not illuminate.
•  FREEZE FRAME DATA is not available.
•  Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  Engine oil pressure sensor malfunction
•  Engine oil temperature sensor malfunction
•  Engine oil attenuation by frequently diesel particulate filter regeneration
•  Engine oil data reset procedure does not perform in each engine oil replacements.
•  Oil viscosity lowered due to engine oil deterioration
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the snapshot data on the repair order.
—
Go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING CODE AND/OR DTC
•  Switch the ignition off, then ON (engine off).
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Are any other PENDING CODEs and/or DTCs present?
Yes
Go to the applicable PENDING CODE or DTC inspection.
(See DTC TABLE [SKYACTIV-D 1.5].)
No
Go to the next step.
4
INSPECT ENGINE OIL PRESSURE SENSOR
•  Inspect the engine oil pressure sensor.
•  Is there any malfunction?
Yes
Replace the engine oil temperature sensor/engine oil pressure sensor, then go to Step 7.
(See ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
No
Go to the next step.
5
INSPECT ENGINE OIL TEMPERATURE SENSOR
•  Inspect the engine oil temperature sensor.
•  Is there any malfunction?
Yes
Replace the engine oil temperature sensor/engine oil pressure sensor, then go to Step 7.
(See ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
No
Go to the next step.
6
REPLACE ENGINE OIL
•  Replace the specified engine oil.
—
Perform the “ENGINE OIL DATA RESET”, then go to the next step.
(See ENGINE OIL DATA RESET [SKYACTIV-D 1.5].)
7
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine and warm it up completely.
Caution
•  While performing this step, always operate the vehicle in a safe and lawful manner.
•  When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later.
•  Drive the vehicle under the FREEZE FRAME DATA/snapshot data condition.
•  Perform the DTC Reading Procedure.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
8
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [SKYACTIV-D 1.5].)
No
DTC troubleshooting completed.