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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Charging System (M20A-FKS) - Diagnostic Codes & Symptom Tests) >> Charging System >> DTC P0620-49: Generator Control Circuit Internal Electronic Failure [09/2022 - 03/2023] >> Procedure

DTC P0620-49: Generator Control Circuit Internal Electronic Failure [09/2022 - 03/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHARGING CIRCUIT WITHOUT LOAD 

    See step  6

    Result

    Result
    OK
    NG

    Result: 

    NG 

    REPAIR OR REPLACE GENERATOR ASSEMBLY 

    for Denso Made Generator: Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 03/2023]

    for VALEO Made: Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]

    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 [06/2018 - ]

    Result: 

    NG 

    REPAIR OR REPLACE GENERATOR ASSEMBLY 

    for Denso Made Generator: Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 03/2023]

    for VALEO Made: Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]