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Home >> Toyota >> 2021 >> Mirai Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes (18 Of 18) & Circuit Tests (1 Of 3) >> Hybrid Control System >> DTC P338F-00: FC Air Compressor Inverter Overcurrent (System Performance) [11/2020 - 12/2022] >> DTC Summary

DTC Summary

  1. MALFUNCTION DESCRIPTION 

    This DTC indicates that a large current flowed in the inverter for the FC air compressor motor. The cause of this malfunction may be one of the following:

    Area Main Malfunction Description
    Inverter low-voltage circuit The connectors are not connected properly
    Resolver Open or short circuit in the FC air compressor motor resolver circuit
    FC air compressor motor
    • Open or short circuit in the FC air compressor motor coils
    • An internal FC air compressor motor malfunction (iron particles or damage from foreign objects)
    Inverter 
    • Inverter internal circuit malfunction
    • Malfunction in ECU that controls the inverter
    • Malfunction in sensor for inverter control (current sensor)