BMW X3 2018–2019 — technical service bulletin
Bulletin B611519 · NHTSA communication 10166388 · issued Sep 1, 2019
Technical service bulletin
communication type
Electrical System
component
2018–2019
model years
3
vehicle entries
Official summary
JUNCTION BOX REAR FAULT STORED IN BODY DOMAIN CONTROLLER: Fault code 804075 "JBR_LIN: relay 30F1-status contradiction" is stored in the Body Domain Controller (BDC). The fault entry has no effect is not noticeable in the customer perception nor in function impairments. Software error in the Junction Box Rear (JBR_LIN).
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.