C121C on the 2006 Dodge Charger
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.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| 1801206 | 2006-04-26. Service bulletin. MAP SENSOR CAUSING DTC'S P0652, P0340, P2127 AND C121C. *TT |
|---|
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.