Code Definition

B2152 — Seat Rear Vertical Motor Position Out of Range

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

About B2152

B2152 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 B2152 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 B2152 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

The B2152 fault code indicates that the seat control module has detected the rear vertical seat motor position signal is outside the expected operating range. The rear vertical motor controls the up and down movement of the rear portion of the seat cushion, and its position is monitored by an internal hall effect sensor or potentiometer that provides feedback to the seat control module. When the reported position exceeds the calibrated operating limits, or when the position counter does not match the commanded motor movement, the module sets this code. The driver will typically notice that the...

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