P0405 on the 2004 Dodge Ram
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.
| 1802104 | 2004-07-16. Service bulletin. MALFUNCTION INDICATOR LAMP (MIL) ILLLUMINATION DIAGNOSTIC TROUBLE CODES P0401, P0403, P0404, P0405, P0406. *MJ |
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| 1801004 | 2004-05-03. Service bulletin. MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION DIAGNOSTIC TROUBLE CODES (DTC'S) P0403, P0404, P0405, P0406. *TT |
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.