C1278 on the 2007 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.
| TSB-08-20-8 | 2009-02-26. Service bulletin. FORD: STEERING WHEEL ANGLE CIRCUIT AND/OR SIGNAL FAILURE-C1277-C1278-BUILT ON OR BEFORE 4/10/08. VEHICLES MAY EXHIBIT A TRACTION CONTROL LIGHT (TCL) ON WITH DIAGNOSTIC TROUBLE CODES. *PE |
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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.