DTC P250C:00 [PCM (SKYACTIV-D 2.2)]

id0102j5787300

DTC P250C:00

Engine oil level sensor: Circuit malfunction

DETECTION CONDITION

•  A supply voltage error signal from the engine oil level sensor continues to be received for a specified time.

MONITORING CONDITIONS

―  When all of the following conditions are met for 30 s.

•  Battery positive voltage: 10—16 V

•  LIN communication system: DTC U1100:00 is not detected

Diagnostic support note

•  This is a continuous monitor (other).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

Not applicable

POSSIBLE CAUSE

•  Engine oil level sensor connector or terminal malfunction

•  Short to ground or open circuit in engine oil level sensor power supply circuit

―  Short to ground in wiring harness between main relay terminal C and engine oil level sensor terminal A

―  ENGINE3 15 A fuse malfunction

―  Open circuit in wiring harness between main relay terminal C and engine oil level sensor terminal A

•  PCM connector or terminal malfunction

•  Short to ground in wiring harness between engine oil level sensor terminal C and PCM terminal 2G

•  Short to power supply in wiring harness between engine oil level sensor terminal C and PCM terminal 2G

•  Open circuit in wiring harness between engine oil level sensor terminal C and PCM terminal 2G

•  Engine oil level sensor malfunction

•  PCM malfunction

DTC P250C:00	Engine oil level sensor: Circuit malfunction
DETECTION CONDITION	• A supply voltage error signal from the engine oil level sensor continues to be received for a specified time. MONITORING CONDITIONS ― When all of the following conditions are met for 30 s. • Battery positive voltage: 10—16 V • LIN communication system: DTC U1100:00 is not detected Diagnostic support note • This is a continuous monitor (other). • The check engine light does not illuminate. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	• Engine oil level sensor connector or terminal malfunction • Short to ground or open circuit in engine oil level sensor power supply circuit ― Short to ground in wiring harness between main relay terminal C and engine oil level sensor terminal A ― ENGINE3 15 A fuse malfunction ― Open circuit in wiring harness between main relay terminal C and engine oil level sensor terminal A • PCM connector or terminal malfunction • Short to ground in wiring harness between engine oil level sensor terminal C and PCM terminal 2G • Short to power supply in wiring harness between engine oil level sensor terminal C and PCM terminal 2G • Open circuit in wiring harness between engine oil level sensor terminal C and PCM terminal 2G • Engine oil level sensor malfunction • PCM malfunction

Diagnostic Procedure

Step

Inspection

Results

Action

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED 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.

2

VERIFY OTHER RELATED DTCs

•  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 P250C:00 been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)

No

Go to the next step.

3

INSPECT ENGINE OIL LEVEL SENSOR CONNECTOR CONDITION

•  Switch the ignition OFF.

•  Disconnect the engine oil level sensor connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 9.

4

INSPECT ENGINE OIL LEVEL SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

•  Verify that the engine oil level sensor connector is disconnected.

•  Switch the ignition ON (engine off).

Note

•  Another DTC may be stored by the PCM detecting an open circuit.

•  Measure the voltage at engine oil level sensor terminal A (vehicle wiring harness side).

•  Is the voltage B+?

Yes

Go to the next step.

No

Inspect the ENGINE3 15 A fuse.

•  If the fuse is blown:

―  Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and engine oil level sensor terminal A.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to ground.

•  Replace the fuse.

•  If the fuse is damaged:

―  Replace the fuse.

•  If the fuse is normal:

―  Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and engine oil level sensor terminal C.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to Step 9.

5

INSPECT PCM CONNECTOR CONDITION

•  Disconnect the PCM connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 9.

6

INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION CIRCUIT FOR SHORT TO GROUND

•  Verify that the engine oil level sensor connector and the PCM connector are disconnected.

•  Switch the ignition OFF.

•  Inspect for continuity between engine oil level sensor terminal C (vehicle wiring harness side) and body ground.

•  Is there continuity?

Yes

Refer to the wiring diagram and verify if there is a common connector between engine oil level sensor terminal C and PCM terminal 2G.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to ground.

Go to Step 9.

No

Go to the next step.

7

INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION CIRCUIT FOR SHORT TO POWER SUPPLY

•  Verify that the engine oil level sensor connector and the PCM connector are disconnected.

•  Switch the ignition ON (engine off).

Note

•  Another DTC may be stored by the PCM detecting an open circuit.

•  Measure the voltage at engine oil level sensor terminal C (vehicle wiring harness side).

•  Is the voltage 0 V?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify if there is a common connector between engine oil level sensor terminal C and PCM terminal 2G.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to the power supply.

Go to Step 9.

8

INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION CIRCUIT FOR OPEN CIRCUIT

•  Verify that the engine oil level sensor connector and the PCM connector are disconnected.

•  Switch the ignition OFF.

•  Inspect the wiring harness for continuity between engine oil level sensor terminal C (vehicle wiring harness side) and PCM terminal 2G (vehicle wiring harness side).

•  Is there continuity?

Yes

Replace the engine oil level sensor, then go to Step 9.

(See ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

No

Refer to the wiring diagram and verify if there is a common connector between engine oil level sensor terminal C and PCM terminal 2G.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to the next step.

9

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Reconnect all the disconnected connectors.

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC [PCM (SKYACTIV-D 2.2)].)

•  Switch the ignition ON (engine off) and leave for 1 min.

•  Start the engine and wait for min.

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Has DTC P250C:00 been recorded?

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.

10

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.

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED 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.
2	VERIFY OTHER RELATED DTCs • 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 P250C:00 been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
2		No	Go to the next step.
3	INSPECT ENGINE OIL LEVEL SENSOR CONNECTOR CONDITION • Switch the ignition OFF. • Disconnect the engine oil level sensor connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
3		No	Repair or replace the connector, then go to Step 9.
4	INSPECT ENGINE OIL LEVEL SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Verify that the engine oil level sensor connector is disconnected. • Switch the ignition ON (engine off). Note • Another DTC may be stored by the PCM detecting an open circuit. • Measure the voltage at engine oil level sensor terminal A (vehicle wiring harness side). • Is the voltage B+?	Yes	Go to the next step.
4		No	Inspect the ENGINE3 15 A fuse. • If the fuse is blown: ― Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and engine oil level sensor terminal A. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which is shorted to ground. • Replace the fuse. • If the fuse is damaged: ― Replace the fuse. • If the fuse is normal: ― Refer to the wiring diagram and verify if there is a common connector between main relay terminal C and engine oil level sensor terminal C. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 9.
5	INSPECT PCM CONNECTOR CONDITION • Disconnect the PCM connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
5		No	Repair or replace the connector, then go to Step 9.
6	INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION CIRCUIT FOR SHORT TO GROUND • Verify that the engine oil level sensor connector and the PCM connector are disconnected. • Switch the ignition OFF. • Inspect for continuity between engine oil level sensor terminal C (vehicle wiring harness side) and body ground. • Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between engine oil level sensor terminal C and PCM terminal 2G. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which is shorted to ground. Go to Step 9.
6		No	Go to the next step.
7	INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the engine oil level sensor connector and the PCM connector are disconnected. • Switch the ignition ON (engine off). Note • Another DTC may be stored by the PCM detecting an open circuit. • Measure the voltage at engine oil level sensor terminal C (vehicle wiring harness side). • Is the voltage 0 V?	Yes	Go to the next step.
7		No	Refer to the wiring diagram and verify if there is a common connector between engine oil level sensor terminal C and PCM terminal 2G. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which is shorted to the power supply. Go to Step 9.
8	INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION CIRCUIT FOR OPEN CIRCUIT • Verify that the engine oil level sensor connector and the PCM connector are disconnected. • Switch the ignition OFF. • Inspect the wiring harness for continuity between engine oil level sensor terminal C (vehicle wiring harness side) and PCM terminal 2G (vehicle wiring harness side). • Is there continuity?	Yes	Replace the engine oil level sensor, then go to Step 9. (See ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8		No	Refer to the wiring diagram and verify if there is a common connector between engine oil level sensor terminal C and PCM terminal 2G. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to the next step.
9	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) • Switch the ignition ON (engine off) and leave for 1 min. • Start the engine and wait for min. • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Has DTC P250C:00 been recorded?	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].)
9		No	Go to the next step.
10	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)].)
10		No	DTC troubleshooting completed.