U0216 — Data bus, door contact switch B - no communication

Manufacturer reference family

BMW: U0216

Lost Communication With "Door Switch B"

Reference namespace: bmw
Source revision: legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: BMW.

10 profiles assigned this reference family

i3 (pure EV)BMW
i3 + ICE range extenderBMW
i4, i5, i7, iX, iX1, IX2 and PHEV [+ OBDII]BMW
i4, i5, i7, iX, iX1, IX2 and PHEV [EV BATTERY ONLY]BMW
iX3 (G08)BMW
N47, N57(*)BMW
OBD-II / EOBD E-body(CAN/UDS)BMW
OBD-II / EOBD Exx N57 3.0DBMW
OBD-II / EOBD F-bodyBMW · 2008–2018
OBD-II / EOBD G-bodyBMW

Generic OBD2

Generic OBD2: U0216

Data bus, door contact switch B - no communication

Reference namespace: obd2
Source revision: legacy-2.2.20

Generic OBD2 definition; confirm the protocol and vehicle-specific service information.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording

Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method