# P0402 on the 1997 Mercury Mountaineer

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 P0402

- [52798](https://open.wenmarpro.com/bulletins/52798), 1997-09-12: DTC P0402 IN MEMORY UNDER INVESTIGATION BY ENGINEERING. \*TW