DTC Diagnosis Procedure

Confirm that PCV hose is connected correctly.

Is the inspection result normal?

YES

GO TO 2.

NO

Repair or replace malfunctioning part.

1. Start engine and let it idle.
2. Listen for an intake air leakage after the mass air flow sensor.

Is intake air leakage detected?

YES

Discover air leakage location and repair.

NO

GO TO 3.

1. Stop engine.
2. Replace ECM.
3. Perform additional service when replacing ECM. Refer to Work Procedure .

INSPECTION END