B1273 on the 2015 Ford Mustang
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.
| SSM 47429 | 2018-09-10. Service bulletin. Some 2015 and 2016 Mustang vehicles built on or before 4/22/2016 may exhibit a partial outage of the rear tail, turn signal or stop lamps following a vehicle start with a low battery. This may be accompanied by any combination of DTCs B1271, B1272, B1273, B1274, B1275 and B1276. The condition typically clears on vehicle restart. Reprogram the BCMB module to the latest calibration using IDS release 110.01 or higher. Calibration files may also be obtained at www.motorcraftservice.com. Use applicable labor operations from Section 10 of the SLTS manual and use causal part 13C788. |
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| SSM 45895 | 2017-02-10. Service bulletin. 2015-2016 MUSTANG BUILT ON OR BEFORE 4/22/2016 - REAR TAIL LAMP, TURN LAMP OR STOP LAMP PARTIAL OUTAGE - DTCS B1271, B1272, B1273, B1274, B1275 OR B1276 |
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.