DTC P0300-00: Random/Multiple Cylinder Misfire Detected; DTC P0300-27: Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold; DTC P0300-85: Random / Multiple Cylinder Misfire Detected (Over Temperature) Signal Above Allowable Range; DTC P0301-00: Cylinder 1 Misfire Detected; DTC P0302-00: Cylinder 2 Misfire Detected; DTC P0303-00: Cylinder 3 Misfire Detected; DTC P0304-00: Cylinder 4 Misfire Detected [03/2022 - 03/2023]: Wiring Diagram

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0100-12 for the mass air flow meter sub-assembly circuit.

Refer to DTC P0100-12: Mass or Volume Air Flow Sensor "A" Circuit Short to Battery; DTC P0100-14: Mass or Volume Air Flow Sensor "A" Circuit Short to Ground or Open [03/2022 - 03/2023]