# P1633 on the 1999 Ford ZX2

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 P1633

- [615506](https://open.wenmarpro.com/bulletins/615506), 2001-01-17: SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP ON CONCERN WITH DIAGNOSTIC TROUBLE CODE P1633. \*TT
- [615415](https://open.wenmarpro.com/bulletins/615415), 2001-01-16: SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP ON CONCERN WITH DIAGNOSTIC TROUBLE CODE P1633. \*TT
- [606975](https://open.wenmarpro.com/bulletins/606975), 1999-09-09: SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LIGHT \(MIL\) AND DIAGNOSTIC TROUBLE CODE \(DTC\) P1633 IN MEMORY. \*TT