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    1. TSBs

    Replace Toyota HV Cooling Filter

    May 8, 2023
    Some 2003-2020 Toyota Prius vehicles may have a MIL on with DTC P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup in the HV battery cooling fan and/or HV cooling filter. If the filter is clogged/dirty, do not attempt to clean it.
    Photo: Mitchell 1
    Example of a dirty Prius C HV battery cooling intake filter.
    Example of a dirty Prius C HV battery cooling intake filter.

    Some 2003-2020 Toyota Prius vehicles may have a MIL on with DTC P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup in the HV battery cooling fan and/or HV cooling filter. If the filter is clogged/dirty, do not attempt to clean it. The filter must be replaced.

    Do not attempt to clean the HV battery cooling fan while it is installed. Doing so may cause dirt/dust to enter the battery case. Failure to secure the fan blades while cleaning the HV battery fan assembly may result in electronic circuit failure due to over-turning.

    When the repair is done, reprogram the ECU with the latest calibration.

    About the Author

    Information courtesy of Mitchell 1

    Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

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