Code No. P252F: Engine Oil Level Malfunction

FUNCTION

The engine oil level may ascend if the fuel runs into the engine oil on the DPF regeneration.
The engine-ECU monitors the engine driving conditions to estimate the ascend of engine oil level.

TROUBLE JUDGMENT

Check Condition

Ignition switch is in "ON" position.

Judgement Criterion

The estimated increased amount of the engine oil exceeds the 1,000 cc.

FAIL-SAFE AND BACKUP FUNCTION

The DPF regeneration is prohibited.

PROBABLE CAUSE

The engine oil is increased.

DIAGNOSIS PROCEDURE

STEP 1. Replace the engine oil.

Replace the engine oil, When the engine oil is replaced, initialise the learning value (Refer to GROUP 00 - Precautions before Service - Initialisation Procedure for Learning Value in Common Rail Engine <4N1> ). After initialising the learning value, reconfirm diagnosis code.

Q. Is the diagnosis code set?

	Replace the engine-ECU.

	Check end.