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DTC P250A:00 [PCM (SKYACTIV-D)]

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Note

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

Details On DTCs

Description	Engine oil level sensor: Function malfunction
Detection condition	Determination condition	•  PCM receives abnormal signal from the engine oil level sensor.
	Preconditions	•  Battery positive voltage: 10—16 V •  The following DTCs are not detected ―  LIN communication: U1100:00 ―  Engine oil temperature sensor: P0196:00, P0197:00, P0198:00 •  Low-G sensor signal is normal
	Drive cycle	•  1
	Self-test type	•  CMDTC self test
	Sensor/unit used	•  Engine oil level sensor •  Engine oil temperature sensor •  Low-G sensor
Fail-safe	•  Not applicable
Vehicle status when DTCs are output	•  Master warning light is turned on
Possible cause	•  Excessive engine oil level (oil level exceeds measurable upper limit range of engine oil level sensor) ―  Poor drainage during engine oil replacement ―  Excessive engine oil resupplying ―  Poor oil level adjustment ―  Engine oil dilution Note •  If a condition in which the engine oil temperature does not increase sufficiently is repeated, such as when driving short distances, the fuel does not vaporize, engine oil dilution continues, and then the oil level increases. •  Engine oil level sensor malfunction ―  Clogging of oil passage to engine oil level sensor detection area ―  Engine oil level sensor internal application specific integrated circuit malfunction •  Signal error to PCM ―  Engine oil level sensor connector or terminal malfunction ―  Short to ground in engine oil level sensor LIN communication line ―  Open circuit in engine oil level sensor LIN communication line •  PCM malfunction

Function Explanation (DTC Detection Outline)

―  With an engine oil temperature of −35 °C {−31 °F} or more, the PCM receives an error signal related to the engine oil temperature from the engine oil level sensor continuously for the specified time or more.

―  The PCM receives an error signal from the engine oil level sensor continuously for the specified time or more.

―  The oil level signal of the engine oil level sensor received by the PCM does not change for the specified time or more under the following certain diagnostic conditions.

Repeatability Verification Procedure

PID Item/Simulation Item Used in Diagnosis

PID

Function Inspection Using M-MDS

Step	Inspection	Results	Action
1	PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY •  Verify related Service Bulletins, on-line repair information, or Service Information availability. •  Is any related Information available?	Yes	Perform repair or diagnosis according to the available information. •  If the vehicle is not repaired, go to the next step.
		No	Go to the next step.
2	PURPOSE: IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA •  Is DTC P250A:00 causing the freeze frame data?	Yes	Go to the next step.
		No	Go to the troubleshooting procedure for DTC on freeze frame data. (See DTC TABLE [PCM (SKYACTIV-D)].)
3	PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION •  Record the freeze frame data/snapshot data. Note •  Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
4	PURPOSE: VERIFY OTHER RELATED DTCs •  Perform the DTC inspection for the PCM. (See DTC INSPECTION) •  Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D)].)
		No	Go to the next step.
5	PURPOSE: DETERMINE IF CAUSE IS ERROR SIGNAL FROM ENGINE OIL LEVEL SENSOR •  Clear the DTC recorded in the memory. (See CLEARING DTC.) •  Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.) PCM: ―  ENG_OIL_TEMP_BLOCK •  Start the engine and warm up until the value of PID ENG_OIL_TEMP_BLOCK is 60 °C {140 °F} or more. •  After engine warm-up, perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is the same Pending DTC present?	Yes	Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
		No	Go to the next step.
6	PURPOSE: VERIFY ACTUAL ENGINE OIL LEVEL •  Switch the ignition ON (engine off) and leave for 5 min. •  Pull out the dipstick. (See ENGINE OIL LEVEL INSPECTION [SKYACTIV-D 1.8].) •  Verify if the engine oil level is 8 mm {0.3 in} or more from the upper limit position of the dipstick. •  Is it 8 mm {0.3 in} or more?	Yes	Go to Step 8.
		No	Go to the next step.
7	PURPOSE: VERIFY IF CAUSE IS ENGINE OIL LEVEL SENSOR STICKING MALFUNCTION •  Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.) PCM: ―  ENG_OIL_LVL •  Start the engine while verifying the monitor value with the ignition switched ON (engine off). •  Leave for 30 s or more. •  Does the monitor value decrease by 7 mm {0.3 in} or more compared to the value with the ignition switched ON (engine off)?	Yes	A temporary malfunction can be considered. •  Perform the [Action for Non-repeatable Malfunction]. (See TROUBLESHOOTING PROCEDURE [(E)].)
		No	Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
8	PURPOSE: VERIFY IF CAUSE IS EXCESSIVE ENGINE OIL LEVEL •  Switch the ignition ON (engine off). •  Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.) PCM: ―  ENG_OIL_LVL •  Verify the monitor value with the ignition switched ON (engine off). •  Is the monitor value 95.8 mm {3.77 in} or more?	Yes	Adjust the engine oil level near the middle of the upper and lower limit position on the dipstick. (See ENGINE OIL LEVEL INSPECTION [SKYACTIV-D 1.8].) Go to the next step.
		No	Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
9	PURPOSE: VERIFY IF CAUSE IS ENGINE OIL LEVEL SENSOR STICKING MALFUNCTION •  Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.) PCM: ―  ENG_OIL_LVL •  Start the engine while verifying the monitor value with the ignition switched ON (engine off). •  Leave for 30 s or more. •  Does the monitor value decrease by 7 mm {0.3 in} or more compared to the value with the ignition switched ON (engine off)?	Yes	The cause is an excessive engine oil amount exceeding the measurable range of the engine oil level sensor. Replace the engine oil because there is the possibility that the engine oil is diluted. (See ENGINE OIL REPLACEMENT [SKYACTIV-D 1.8].) Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.
		No	Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.

Troubleshooting Diagnostic Procedure

―  Perform an inspection of LIN communication line.

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

Step	Inspection	Results	Action
1	PURPOSE: INSPECT ENGINE OIL LEVEL SENSOR CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
2	PURPOSE: INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION LINE FOR SHORT TO GROUND •  Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
3	PURPOSE: INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION LINE FOR OPEN CIRCUIT •  Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Replace the engine oil level sensor, then perform the repair completion verification. (See ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification 1	PURPOSE: VERIFY THAT VEHICLE IS REPAIRED •  Install/connect the part removed/disconnected during the troubleshooting procedure. •  Clear the DTC recorded in the memory. (See CLEARING DTC.) •  Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ―  Implement the repeatability verification procedure. (See Repeatability Verification Procedure) •  Perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
		No	Go to the next step.
Repair completion verification 2	PURPOSE: VERIFY IF OTHER DTCs DISPLAYED •  Perform the DTC inspection. (See DTC INSPECTION.) •  Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
		No	DTC troubleshooting completed.