# C1998 on the 2003 Ford Expedition

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 C1998

- [10004061](https://open.wenmarpro.com/bulletins/10004061), 2003-11-17: VEHICLES EQUIPPED WITH ADVANCETRAC STABILITY ASSIST/INTERACTIVE VEHICLE DYNAMICS \- IVD\) MAY EXHIBIT A DIAGNOSTIC TROUBLE CODE C1998. \*TT
- [10003849](https://open.wenmarpro.com/bulletins/10003849), 2003-11-05: STABILITY CONTROL \(ADVANCETRAC/IVD\) DIAGNOSTIC TROUBLE CODE C1998. \*TT
- [636247](https://open.wenmarpro.com/bulletins/636247), 2002-11-07: INTERACTIVE VEHICLE DYNBAMICS \(IVD\) DIAGNOSTIC TROUBLE CODE C1998. \*TT