P0128 on the 2011 Mazda Mazda3
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.
| 01-021-13-2817B | 2017-04-24. Service bulletin. SOME VEHICLES MAY EXPERIENCE THE MIL ON WITH DTC P0128:00 (THERMOSTAT STUCK OPEN). THIS CONCERN IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. TO CORRECT THE PROBLEM, THE CONTROL LOGIC OF THE PCM HAS BEEN CHANGED. |
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| 01-021-13-2817 | 2017-04-14. Service bulletin. SOME VEHICLES MAY EXPERIENCE THE MIL ON WITH DTC P0128:00 (THERMOSTAT STUCK OPEN). THIS CONCERN IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. TO CORRECT THE PROBLEM, THE CONTROL LOGIC OF THE PCM HAS BEEN CHANGED. |
| 01-021-13-2817A | 2017-04-14. Service bulletin. SOME VEHICLES MAY EXPERIENCE THE MIL ON WITH DTC P0128:00 (THERMOSTAT STUCK OPEN). THIS CONCERN IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. TO CORRECT THE PROBLEM, THE CONTROL LOGIC OF THE PCM HAS BEEN CHANGED. |
3 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.