Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2GR-FKS) - Diagnostic Codes (1 Of 6) >> SFI System >> 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 [12/2019 - 10/2022] >> Typical Malfunction Thresholds