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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Battery / Charging System - Diagnostic Codes & Symptom Tests) >> CHARGING SYSTEM (for Gasoline Model) >> DTC P0620-49: Generator Control Circuit Internal Electronic Failure [10/2022 - ] >> Procedure

DTC P0620-49: Generator Control Circuit Internal Electronic Failure [10/2022 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHARGING CIRCUIT WITHOUT LOAD 

    See step  7

    Result

    Result
    OK
    NG

    Result: 

    NG 

    REPAIR OR REPLACE GENERATOR ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    OK 

    See step  2

  2. CHARGING CIRCUIT WITH LOAD 

    See step  8

    Result

    Result
    OK
    NG

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [10/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE GENERATOR ASSEMBLY. Refer to  REMOVAL [10/2022 - ]