# P1491 on the 2003 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.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P1491

- [10003513](https://open.wenmarpro.com/bulletins/10003513), 2003-10-22: MALFUNCTION INDICATOR LAMP \(MIL\) ON WITH DIAGNOSTIC TROUBLE CODE \(DTC\) P1491. \*TT