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Home >> Infiniti >> 2019 >> QX30 Essential, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (4 Of 4) >> DTC/Circuit Diagnosis >> DTC P250B: Oil Level Sensor >> Component Inspection (Engine Oil Level Switch)
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Component Inspection (Engine Oil Level Switch)

  1. CHECK ENGINE OIL LEVEL SWITCH 
    1. Turn ignition switch OFF.
    2. Disconnect engine oil level switch harness connector.
    3. Check the resistance between engine oil level switch terminals.

      Engine oil level switch

      Condition

      Resistance

      Terminal

      1 and 2

      Engine oil level: Filled enough

      0 Ohm

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace engine oil level switch. Refer to Removal and Installation .