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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] >> Description

DTC P338F-00: FC Air Compressor Inverter Overcurrent (System Performance) [11/2020 - 12/2022]: Description

For a description of the inverter.

Refer to DESCRIPTION

Refer to high voltage system diagram for the System Description.

Refer to SYSTEM DESCRIPTION [11/2020 - 12/2023]

If an abnormal amount of current flows through the FC air compressor motor inverter, the MG ECU detects it and sends a signal to inform the EV control ECU of the malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate DTC Output from Priority
P338F-00 FC Air Compressor Inverter Overcurrent (System Performance) Abnormal FC air compressor motor current value detected (system malfunction):
A malfunction is detected in any of the FC air compressor motor components (FC air compressor motor inverter, FC air compressor motor, MG ECU, etc.).
(1 trip detection logic)
  • EV control ECU
  • Inverter with converter assembly
  • FC air compressor with motor assembly
  • Wire harness or connector
  • PCU fuse
Master Warning:
Comes on
EV A

*: This DTC is output when a large current flows in the FC air compressor motor inverter and there is no history information indicating the specific part.

Check related parts (inverter, FC air compressor motor, resolver, cable, wire harness, EV control ECU).