DTC P252F:00 [PCM (SKYACTIV-D 2.2)]

id0102j5154300

Engine Type

Item	Reference
Fuel injector (2 pin type)	(See Fuel injector (2 pin type).)
Fuel injector (6 pin type)	(See Fuel injector (6 pin type).)

Fuel injector (2 pin type)

DTC P252F:00	Engine oil level too high
DETECTION CONDITION	•  The amount of engine oil dilution exceeds 1,661 g {58.59 oz} during the diesel particulate filter regeneration control. Diagnostic support note •  This is a continuous monitor (other). •  The check engine light does not illuminate. •  FREEZE FRAME DATA/Snapshot data is not available. •  DTC is not stored in the PCM memory.
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	•  Engine oil attenuation by frequently diesel particulate filter regeneration •  Engine oil data reset procedure does not perform in each engine oil replacements. •  PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Fuel injector (6 pin type)

Note

•  To determine the malfunctioning part, proceed with the diagnostics from “Function inspection using M-MDS”.

Details on DTCs

System malfunction location	Engine oil system: Engine oil level is too high
Detection condition	Determination condition	•  Engine oil level is 15 mm above F mark on oil level gauge
	Preconditions	•  Engine speed: 750—3,000 rpm •  Vehicle speed: 5 km/h or more •  Hydraulic control: During low hydraulic pressure •  Oil temperature: 20—120 °C {68—248 °F} •  Acceleration of vehicle in the forward/rearward and left/right directions: 0.08 G or less •  The following DTCs are not detected ―   LIN communication: U1100:00 ―  Engine oil level sensor: P250A:00, P250C:00
	Drive cycle	•  1
	Self-test type	•  CMDTC self test
	Sensor/unit used	•  PCM •  Engine oil level sensor •  Engine oil temperature sensor •  Low-G sensor
Fail-safe	•  Not applicable
Vehicle status when DTCs are output	•  Wrench indicator light
Possible cause	•  Engine oil level is high •  Frequent, auto diesel particulate filter regeneration is performed and engine oil is diluted •  Engine oil level sensor malfunction ―  Oil passage clogging ―  Integrated circuit in engine oil level sensor malfunction •  Signal error to PCM ―  Engine oil level sensor connector or terminal malfunction ―  Open circuit in wiring harness between engine oil level sensor terminal C and PCM terminal 2G •  The engine oil data reset was not performed after the engine oil replacement. •  PCM malfunction

System Wiring Diagram

•  Not applicable

Function Explanation (DTC Detection Outline)

•  The PCM monitors the oil level received from the engine oil level sensor, and the oil level average value is calculated at 10 min or more intervals or when the distance traveled is 100 km or more.

•  If the PCM determines that the oil level average value is 15 mm or more above the F mark on the oil level gauge 3 times consecutively, the PCM stores DTCs and displays the wrench indicator.

Repeatability Verification Procedure

1.  Park the vehicle on a flat surface and switch the ignition ON (engine off).

2.  Verify that the engine oil level is near the X mark on the oil level gauge.

PID Item/Simulation Item Used in Diagnosis

PID

Function Inspection Using M-MDS

Step	Inspection	Results	Action
1	PURPOSE: VERIFY DTC CAUSING FREEZE FRAME DATA •  Is DTC P252F:00 causing the freeze frame data?	Yes	Go to the next step.
		No	Inspect the DTC causing the freeze frame data. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
2	PURPOSE: 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 freeze frame data/snap shot data.	―	Go to the next step.
3	PURPOSE: VERIFY IF OTHER RELATED DTCs OCCURRED SIMULTANEOUSLY •  Switch the ignition OFF, and then switch it ON (engine off). •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Has any DTC other than P252F:00 or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].) Go to the next step.
		No	Go to the next step.
4	PURPOSE: VERIFY PID AS TO WHETHER MALFUNCTION IS CAUSED BY INPUT SIGNAL TO PCM •  Display PID EOL using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Are the monitoring values normal?	Yes	Go to the next step.
		No	Go to the troubleshooting procedure to perform the procedure from Step 1.
5	PURPOSE: VERIFY CONNECTOR CONNECTIONS •  Display PID EOL using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Does the PID value fluctuate when a new connector is shaken? ―  Engine oil level sensor ―  PCM	Yes	Repair or replace the applicable wiring harness or connector parts. Go to the troubleshooting procedure to perform the procedure from Step 2.
		No	Go to the troubleshooting procedure to perform the procedure from Step 1.

Troubleshooting Diagnostic Procedure

Intention of troubleshooting procedure

•  Step 1

―  Inspect the engine oil level.

•  Step 2

―  Inspect the oil passage for clogging.

•  Steps 3 to 4

―  Verify that the primary malfunction is resolved and there are no other malfunctions.

Step	Inspection	Results	Action
1	PURPOSE: INSPECT ENGINE OIL LEVEL •  Inspect the engine oil level. (See ENGINE OIL LEVEL INSPECTION [SKYACTIV-D 2.2].) •  Is the engine oil level at or above the X mark on the oil level gauge.	Yes	Replace the engine oil. (See ENGINE OIL REPLACEMENT [SKYACTIV-D 2.2].) Implement the engine oil data reset procedure. (See ENGINE OIL DATA RESET [SKYACTIV-D 2.2].) Go to Step 3.
		No	Go to the next step.
2	PURPOSE: INSPECT OIL PASSAGE FOR CLOGGING •  Remove the engine oil level sensor. (See ENGINE OIL LEVEL SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Inspect the hydraulic passage of the engine oil level sensor. •  Is the engine oil level sensor normal?	Yes	Replace the engine oil level sensor, then go to the next step. (See ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
		No	Clean the engine oil level sensor, then go to the next step.
3	PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION •  Reconnect all the disconnected connectors. •  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) •  Implement the repeatability verification procedure. (See Repeatability Verification Procedure.) •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Is DTC P252F:00 displayed?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
		No	Go to the next step.
4	VERIFY OTHER DTCs •  Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
		No	DTC troubleshooting completed.