P0420 on the 2010 Toyota Tacoma
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| T-SB-0161-13 | 2018-04-02. Service bulletin. Some 2010 model year Tacoma vehicles equipped with the 2TR-FE engine may exhibit a front exhaust pipe catalyst rattle noise and/or MIL ?ON? condition with DTC P0420 (Catalyst System Efficiency Below Threshold) stored in the Engine Control Module (ECM) (SAE Term: Powertrain Control Module/PCM). Refer to the repair procedure to address this condition. |
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| T-58-0161-13A | 2016-07-07. Service bulletin. Some 2010 model year Tacoma vehicles equipped with the 2TR-FE engine may exhibit a front exhaust pipe catalyst rattle noise and/or MIL "ON" condition with OTC P0420 (Catalyst System Efficiency Below Threshold) stored in the Engine Control Module (ECM) (SAE Term: Powertrain Control Module/PCM) . Refer to the repair procedure to address this condition . |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.