P0128 on the 2002 Honda Civic
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.
| 903 | 2004-01-26. Service bulletin. DIAGNOSTIC TROUBLE CODE (DTC) P0128 OR P1486, THERMOSTAT RANGE/PERFORMANCE. *TT |
|---|---|
| 1003 | 2004-01-22. Service bulletin. UNDER CERTAIN DRIVING CONDITIONS AFTER A COLD START, THE ECM/PCM CAN MISCALCULATE HOW FAST THE ENGINE COOLANT TEMPERATURE RISES AND SET DIAGNOSTIC TROUBLE CODE (DTC) P0128 OR P1486 (COOLING SYSTEM MALFUNCTION). HONDA SERVICENEWS. *TT |
| 03002 | 2003-04-10. Service bulletin. MALFUNCTION INDICATOR LAMP COMES ON WITH DIAGNOSTIC TROUBLE CODE P0128. *TT |
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.