Code Definition

B2149 — Seat Front Vertical Motor Position Out of Range

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B2149

B2149 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B2149 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

Because B2149 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

DTC B2149 is set when the seat control module detects that the position signal returned from the seat front vertical motor or front vertical position sensor is outside the expected operating range, either electrically below the minimum valid value or above the maximum. The front vertical motor controls the height of the front of the seat cushion (often called the seat front tilt or front height adjustment) and the seat module relies on its position signal to control travel, store and recall memory positions, and stop the motor at the mechanical end stops. The position is typically reported by ...

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