# P1491 on the 2002 Nissan Xterra

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.

## Bulletins for this model year that name P1491

- [10000137](https://open.wenmarpro.com/bulletins/10000137), 2003-02-13: MALFUNCTION INDICATOR LAMP \(MIL\) ON WITH DIAGNOSTIC TROUBLE CODE \(DTC\) P1491. \*TT
- [635792](https://open.wenmarpro.com/bulletins/635792), 2002-10-31: ON SOME VEHICLES, THE MALFUNCTION INDICATOR LAMP IS ON WITH DIAGNOSTIC TROUBLE CODE P1491 SET. \*TT
- [629483](https://open.wenmarpro.com/bulletins/629483), 2002-04-02: SUBJECT REGARDING MALFUNCTION INDICATOR LIGHT ON WITH DTC P1491.\*YD