MIL ON condition with Diagnostic Trouble Code (DTC) P042000 (Catalyst System Efficiency Below Threshold...
Toyota technical service bulletin T-SB-0065-26 for 2023 Toyota Highlander.
- Bulletin number
- T-SB-0065-26 (T-SB-0065-26)
- Component
- Electrical system
- Summary
- Some 2023 model year Highlander vehicles equipped with a T24A-FTS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P042000 (Catalyst System Efficiency Below Threshold Bank 1) present. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition.
Owners of these vehicles have filed 13 complaints in the electrical category.
Vehicles covered
- Toyota Highlander 2023 2023
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