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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 86 (Engine Control System (A25A-FXS) - Diagnostic Codes (P05B1-06DA)) >> SFI System >> DTC P0657-9E: Actuator Supply Voltage "A" Stuck On [10/2022 - 11/2023] >> Procedure

DTC P0657-9E: Actuator Supply Voltage "A" Stuck On [10/2022 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CLEAR DTC 
    1. Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

    2. Turn the ignition switch off.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. READ OUTPUT DTC (DTC P0657-9E) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute.
    2. Connect the cable to the negative (-) auxiliary battery terminal.
    3. Turn the ignition switch to ON.
    4. Wait 10 seconds or more.
    5. Turn the ignition switch off.
    6. Wait 15 seconds or more.
    7. Turn the ignition switch to ON.
    8. Wait 5 seconds or more.
    9. Read the DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTC P0657-9E is output B

    Result: 

    A 

    CHECK FOR INTERMITTENT PROBLEMS 

    Refer to CHECK FOR INTERMITTENT PROBLEMS [12/2019 - ]

    Result: 

    B 

    REPLACE ECM 

    Refer to REMOVAL [10/2022 - 11/2023]

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