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Diagnostic knowledge / B0055 — Second Row Right Seatbelt Sensor
B0055

Second Row Right Seatbelt Sensor

B0055 is described as “Second Row Right Seatbelt Sensor” in the Generic OBD2 reference. Other reference families are shown below; select the scope relevant to your vehicle.

Some scan tools (for example GM and Ford dealer tools) display this code with a failure-type suffix, such as B0055-00 or B0055:00; the base code B0055 is the same.

Generic OBD2

Generic OBD2: B0055

en

Second Row Right Seatbelt Sensor

Reference namespace
obd2
Source revision
legacy-2.2.20

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

Manufacturer reference family

GM: B0055

en

Passenger pre-tensioner suppressed

Reference namespace
gm
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.

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-2026-11-02-v84-evidence. 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

OBD Lens reference library · catalog legacy-owner-2026-11-02-v84-evidence. Sources and scope