B1877 on the 2001 Ford Ranger
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.
| 0369 | 2004-06-16. Service bulletin. SAFETY BELT PRETENSIONER DIAGNOSTIC TROUBLE CODES (DTC) B1877 AND/OR B1881. *TT |
|---|---|
| 0369 | 2003-07-23. Service bulletin. DIAGNOSTIC TROUBLE CODE B1877 AND/OR B1881 INDICATING A HIGH RESISTANCE IN THE SAFETY BELT PRETENSIONER CIRCUIT. *TT *JB |
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.