B1998 on the 2001 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. Its meaning is in the manufacturer's service information.
| 17720 | 2004-07-24. Service bulletin. AIRBAG WARNING LAMP ON WITH DIAGNOSTIC TROUBLE CODE (DTC) B1994/B1998 ON VEHICLES WITHOUT SIDE AIR BAGS. *TT |
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| 15432 | 2002-04-17. Service bulletin. SOME VEHICLES NOT EQUIPPED WITH SIDE AIR BAGS MAY EXHIBIT DIAGNOSTIC TROUBLE CODE B1998 (PASSENGER SIDE AIR BAG CIRCUIT RESISTANCE HIGH) IN THE RESTRAINTS CONTROL MODULE. *TT |
| 14660 | 2001-05-17. Service bulletin. SOME VEHICLES NOT EQUIPPED WITH SIDE AIR BAGS, MAY EXHIBIT A DIAGNOSTIC TROUBLE CODE (DTC) B1998 (PASSENGER SIDE AIR BAG CIRCUIT RESISTANCE HIGH) IN THE RESTRAINTS CONTROL MODULE. *TT |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.