BMW i3 2014–2016 — technical service bulletin
Bulletin B121215 · NHTSA communication 10147708 · issued Jun 1, 2015
Technical service bulletin
communication type
Engine
component
2014–2016
model years
3
vehicle entries
Official summary
Service Engine Soon (MIL): EME FC CF948C. The Service Engine Soon light (MIL) is intermittently illuminated in the instrument cluster (Kombi). This does not affect drivability, and no symptoms are apparent to the customer. CAUSE The following fault code is stored in the fault memory of the Electric Machine Electronics (EME): ? CF948C - Message (actual wheel speed, 0x254) missing, receiver EME, transmitter DSC This fault is stored when the DSC control unit intermittently does not send a particular wheel speed message at the time the EME is expecting to receive it.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.