Code Definition

B2795 — Unrecognised key code

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

About B2795

B2795 is a generic (obd-ii standard) body diagnostic trouble code recorded for Toyota vehicles. 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 B2795 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

This DTC is stored by the Toyota certification ECU (smart key ECU) or immobiliser ECU when the code transmitted by the transponder key or smart key does not match any of the keys registered in the vehicle memory. During each start attempt the ECU energises the transponder, reads the returned key code, and compares it against its stored list before authorising the engine to start. B2795 sets when no valid match is found, which can result from an unregistered or incorrect key, a weak transponder signal, or a fault in the antenna and amplifier circuit that prevents the code being read correctly. ...

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