Code Definition

B0093 — Passenger protection system child protection system self test malfunction

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

About B0093

B0093 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 B0093 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 airbag control module (ACM) runs a periodic self test on the child protection portion of the passenger protection system to confirm that occupant classification, child seat detection, or manual deactivation switch circuits will correctly inhibit passenger airbag deployment when a child seat is present. DTC B0093 sets when this self test fails, meaning at least one component in the child protection chain (typically the occupant classification system OCS, a dedicated child seat transponder receiver, or the passenger airbag deactivation switch and its indicator) has returned an invalid respon...

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