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Toyota TSB #TTT069822
2020 Toyota Highlander
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- TT: Some 17-22MY Highlander and 17-20MY Sienna vehicles may experience a MIL ON condition with DTC(s) P042000, and/or P043000. This issue could involve deteriorated catalyst material from the bank 1 or bank 2 catalytic converter.
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