DTC P0524:00 [PCM (SKYACTIV-G)]

id0102t4339700

Outline

System malfunction location

Engine oil pressure too low

Detection condition

•  After 10 s have elapsed since engine start (including engine-stop by i-stop control) and 3 s have elapsed since the actual engine oil pressure falls below the specified value.^*

^*: With the conditions met, the engine oil warning indication is displayed/engine oil warning light turns on.

Fail-safe

•  Restricts the upper limit of the engine speed.

Possible cause

•  Engine oil leakage

•  Improper engine oil level

•  Engine oil temperature sensor/engine oil pressure sensor connector or terminals malfunction

•  PCM connector or terminals malfunction

•  Engine oil pressure sensor malfunction

•  Oil pump malfunction

•  PCM malfunction

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

System malfunction location	Engine oil pressure too low
Detection condition	• After 10 s have elapsed since engine start (including engine-stop by i-stop control) and 3 s have elapsed since the actual engine oil pressure falls below the specified value.^* ^*: With the conditions met, the engine oil warning indication is displayed/engine oil warning light turns on.
Fail-safe	• Restricts the upper limit of the engine speed.
Possible cause	• Engine oil leakage • Improper engine oil level • Engine oil temperature sensor/engine oil pressure sensor connector or terminals malfunction • PCM connector or terminals malfunction • Engine oil pressure sensor malfunction • Oil pump malfunction • PCM malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

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.

2

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.

3

INSPECT ENGINE OIL LEAKAGE

•  Start the engine.

•  Verify that there is no engine oil leakage in the hydraulic circuit.

•  Is there any leakage?

Yes

Repair or replace the malfunctioning location, then add genuine engine oil.

(See ENGINE OIL REPLACEMENT [SKYACTIV-G 2.0].)

Go to repair completion verification.

No

Go to the next step.

4

INSPECT ENGINE OIL LEVEL

•  Inspect the engine oil level.
(See ENGINE OIL LEVEL INSPECTION [SKYACTIV-G 2.0].)

•  Is the engine oil level sufficient?

Yes

Go to the next step.

No

Add genuine engine oil and perform the repair completion verification.

(See ENGINE OIL REPLACEMENT [SKYACTIV-G 2.0].)

5

INSPECT ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE 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.

6

INSPECT PCM 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.

7

INSPECT ENGINE OIL PRESSURE SENSOR FOR MALFUNCTION

•  Inspect the applicable part.
(See ENGINE OIL PRESSURE SENSOR INSPECTION [SKYACTIV-G 2.0].)

•  Is the part normal?

Yes

Replace the oil pump and perform the repair completion verification.

(See OIL PUMP REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)

Repair completion verification 1

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.

―  Start the engine.

―  Increase and keep the engine speed at 2,500 rpm for 5 s.

•  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.)

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-G 2.0].)

No

Go to the next step.

Repair completion verification 2

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.

Step	Inspection	Results	Action
1	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.
2	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.
2		No	Go to the next step.
3	INSPECT ENGINE OIL LEAKAGE • Start the engine. • Verify that there is no engine oil leakage in the hydraulic circuit. • Is there any leakage?	Yes	Repair or replace the malfunctioning location, then add genuine engine oil. (See ENGINE OIL REPLACEMENT [SKYACTIV-G 2.0].) Go to repair completion verification.
3		No	Go to the next step.
4	INSPECT ENGINE OIL LEVEL • Inspect the engine oil level. (See ENGINE OIL LEVEL INSPECTION [SKYACTIV-G 2.0].) • Is the engine oil level sufficient?	Yes	Go to the next step.
4		No	Add genuine engine oil and perform the repair completion verification. (See ENGINE OIL REPLACEMENT [SKYACTIV-G 2.0].)
5	INSPECT ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE 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.
5		No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	INSPECT PCM CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) • Are the connector and terminal normal?	Yes	Go to the next step.
6		No	Repair or replace the malfunctioning location and perform the repair completion verification.
7	INSPECT ENGINE OIL PRESSURE SENSOR FOR MALFUNCTION • Inspect the applicable part. (See ENGINE OIL PRESSURE SENSOR INSPECTION [SKYACTIV-G 2.0].) • Is the part normal?	Yes	Replace the oil pump and perform the repair completion verification. (See OIL PUMP REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
7		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
Repair completion verification 1	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. ― Start the engine. ― Increase and keep the engine speed at 2,500 rpm for 5 s. • 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.) 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-G 2.0].)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	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.
Repair completion verification 2		No	DTC troubleshooting completed.