Code Definition

B2481 — Convertible Top Up/Down Switch Fault

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

About B2481

B2481 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.

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 B2481 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 B2481 is set by the Body Control Module (BCM) or convertible top control module when a fault is detected in the convertible top up or down switch input circuit. The switch is typically a multi position rocker switch located on the centre console, dash, or overhead console that the driver uses to command the top to raise or lower. The control module monitors both the up and down switch positions and expects mutually exclusive operation, with only one direction at a time being active. The fault sets when both switch inputs are active simultaneously, when the switch reports an invalid signal ...

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