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December 20, 2019 Service bulletin

TT: Some 2020 model year vehicles equipped with a DCM may exhibit a B15A804 DTC in current or history...

Lexus technical service bulletin L-TT-0278-19 for 2020 Lexus ES350, 2020 Lexus RX350 and 2020 Lexus RX Hybrid and others.

Bulletin number
L-TT-0278-19
Component
Equipment
Summary
TT: Some 2020 model year vehicles equipped with a DCM may exhibit a B15A804 DTC in current or history during PDS. This DTC can be triggered during the manufacturing and/or shipping process and does not indicate a problem with the vehicle. To simplify the diagnosis of this DTC, refer to the procedure below to prevent unnecessary parts replacement.

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