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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 129 (Motor Generator Control System - Diagnostic Codes (4 Of 5)) >> MOTOR GENERATOR CONTROL SYSTEM (for THS-HEV Model) >> DTC P0E51-2A: DC/DC Converter Current Sensor Signal Stuck In Range [10/2022 - ] >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2025 Lexus RX 350h, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
  1. MALFUNCTION DESCRIPTION 

    This DTC is stored if the value of the reactor current sensor does not change. The cause of this malfunction may be one of the following:

    Area Main Malfunction Description
    Inverter
    • Inverter internal circuit malfunction
    • Malfunction in ECU that controls the inverter
    • Malfunction in the sensors for inverter control (current sensor, voltage sensors (VH, VL), etc.)
    HV battery high-voltage line circuit Open in an Floor under wire