DTC P0524:00 [SKYACTIV-D 1.5]

id0102q2339700

DTC P0524:00

Engine oil pressure too low
DETECTION CONDITION
•  The engine oil pressure is less than 30 kPa {0.31 kgf/cm2, 4.4 psi} for a continuous 3 s since the engine was started.
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Limits the engine torque or the upper limit of the engine speed.
•  Inhibits the auto DPF regeneration control.
•  Inhibits the compulsory DPF regeneration control.
•  Inhibits the boost control.
•  Inhibits the EGR control.
•  Inhibits engine-stop by operating the i-stop function.
POSSIBLE CAUSE
•  Engine oil leakage
•  Improper engine oil level
•  Engine oil temperature sensor/engine oil pressure sensor connector or terminals malfunction
•  Short to ground in wiring harness between the following terminals:
―  Engine oil temperature sensor/engine oil pressure sensor terminal A—PCM terminal 1BT
―  Engine oil temperature sensor/engine oil pressure sensor terminal D—PCM terminal 1AB
•  PCM connector or terminals malfunction
•  Open circuit in wiring harness between engine oil temperature sensor/engine oil pressure sensor terminal A and PCM terminal 1BT
•  Engine oil pressure sensor malfunction
•  Oil strainer clogging
•  Oil pump malfunction
•  PCM malfunction

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 FREEZE FRAME DATA/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 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 part according to the inspection results, then add genuine engine oil.
Go to the Step 12.
No
Go to the next step.
5
INSPECT ENGINE OIL LEVEL
•  Inspect the engine oil level.
•  Is the engine oil level sufficient?
Yes
Go to the next step.
No
Add genuine engine oil, then go to the next step.
6
INSPECT ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE SENSOR CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the engine oil temperature sensor/engine oil pressure sensor connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 12.
No
Go to the next step.
7
INSPECT ENGINE OIL PRESSURE SENSOR CIRCUIT FOR SHORT TO GROUND
•  Verify that the engine oil temperature sensor/engine oil pressure sensor connector is disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  Engine oil temperature sensor/engine oil pressure sensor terminal A
―  Engine oil temperature sensor/engine oil pressure sensor terminal D
•  Is there continuity?
Yes
Disconnect the PCM connector and inspect the wiring harness for short to ground.
•  If the short to ground circuit could be detected in the wiring harness:
―  Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Engine oil temperature sensor/engine oil pressure sensor terminal A—PCM terminal 1BT
•  Engine oil temperature sensor/engine oil pressure sensor terminal D—PCM terminal 1AB
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
•  If the short to ground circuit could not be detected in the wiring harness:
―  Replace the PCM (short to ground in the PCM internal circuit).
Go to Step 12.
No
Go to the next step.
8
INSPECT PCM CONNECTOR CONDITION
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 12.
No
Go to the next step.
9
INSPECT ENGINE OIL PRESSURE SENSOR POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
•  Verify that the engine oil temperature sensor/engine oil pressure sensor and PCM connectors are disconnected.
•  Inspect for continuity between engine oil temperature sensor/engine oil pressure sensor terminal A (wiring harness-side) and PCM terminal 1BT (wiring harness-side).
•  Is there continuity?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between engine oil temperature sensor/engine oil pressure sensor terminal A and PCM terminal 1BT.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 12.
10
INSPECT ENGINE OIL PRESSURE SENSOR
•  Reconnect all disconnected connectors.
•  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 12.
(See ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
No
Go to the next step.
11
INSPECT OIL STRAINER
•  Inspect the oil strainer for clogging.
•  Is there any malfunction?
Yes
Replace the oil strainer, then go to the next step.
(See OIL PUMP REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
No
Replace the oil pump, then go to the next step.
(See OIL PUMP REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
12
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Always reconnect all disconnected connectors.
•  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.
13
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.