# P0121 on the 2001 Jaguar XK

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 P0121

- [10011317](https://open.wenmarpro.com/bulletins/10011317), 2005-01-15: CHECK ENGINE MALFUNCTION INDICATOR LAMP \- DIAGNOSTIC TROUBLE CODE P0121 FLAGGED \- CONNECTOR MATERIAL MISMATCH \- AJ27 ENGINES \- MODIFY HARNESS. \*TT