# P0420 on the 2001 Nissan Frontier

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 P0420

- [635804](https://open.wenmarpro.com/bulletins/635804), 2002-10-31: THIS BULLETIN PROVIDES INFORMATION ON VEHICLES EXHIBITING A MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420 CATALYST SET. \*TT
- [631337](https://open.wenmarpro.com/bulletins/631337), 2002-05-22: SUBJECT REGARDING MALFUNCTION INDICATOR LAMP ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE P0420. \*JG