P0657 on the 2015 Mitsubishi Outlander
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.
| TIN-18-13-001 | 2018-04-16. Service bulletin. This is a Technical Information Notice sent to dealers. This notice informs dealers how to address stored DTCs (including P0657) in extremely cold ambient temperatures. Dealers can remedy this by replacing the throttle actuator control (TAC) relay. |
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1 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.