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P2A00 on the 2008 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.

Bulletins for this model year that name P2A00
25-001-13 REV. A2022-07-18. Service bulletin. MIL Illumination Due to P2000, P2A00 and/or P2A01 FRONT O2 sensor. Customer may experience MIL illumination. Further investigation by the technician may find one or more of the following DTC(s) present: P2000 - NOX Absorber Efficiency Below Threshold - Bank 1. P2A00 - O2 Sensor 1/1 Circuit Performance. P2A01 - O2 Sensor 1/2 Circuit Performance.

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.