C1234 on the 1998 Ford Explorer
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.
| 15859 | 2002-12-04. Service bulletin. SOME VEHICLES WITH 4WABS MAY EXHIBIT DIAGNOSTIC TROUBLE CODES C1233 AND C1234 (ANTI-LOCK BRAKE SENSOR OUTPUT FAILURE). *TT |
|---|---|
| 16021 | 2002-11-06. Service bulletin. SOME VEHICLES WITH 4WABS MAY EXHIBIT DIAGNOSTIC TROUBLE CODES C1233 AND C1234 (ANTI-LOCK BRAKE SENSOR OUTPUT FAILURES) IN SLIPPERY CONDITIONS. *TT |
2 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.