B2278 on the 2011 Mercury Mariner
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.
| TSB-14-0016 | 2014-03-12. Service bulletin. FORD/MERCURY: IF DIAGNOSTIC CODE B2278 IS STORED IN POWER STEERING CONTROL MODULE (PSCM), IT NEEDS REPLACING WITH TORQUE SENSOR SERVICE KIT THAT IS AVAILABLE AND IF NOT, DOES NOT APPLY. MODEL 2008-2012 ESCAPE, 2008-2011 MARINER. *PE |
|---|
1 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.