P2431 on the 2006 Saturn Ion
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.
| 050604073 | 2006-03-31. Service bulletin. CHECK ENGINE LIGHT MALFUNCTION INDICATOR LAMP ILLUMINATED, USUALLY WITHOUT DRIVEABILITY SYMPTOMS, DIAGNOSTIC TROUBLE CODES P0128, P0326, PO420, P0717, P2431 SET ON L61 ENGINE (FOLLOW SI, AND IF NECESSARY, REPROGRAM ENGINE CONTROL MODULE (ECM) WITH NEW SERVICE CALIBRATION). *AK |
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| 3628 | 2006-01-06. Service bulletin. P2431 DIAGNOSTIC TROUBLE CODE AFTER ECM REPLACEMENT - INSPECT ECM PART NUMBER. *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.