Code Definition

B2495 — ANTI THEFT HORN OUTPUT CIRCUIT Failure

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

About B2495

B2495 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 B2495 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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 B2495 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 Anti Theft Horn is part of the vehicle security alarm system, sounding intermittently when the alarm is triggered to alert nearby people that the vehicle has been disturbed. DTC B2495 is set when the Body Control Module (BCM) detects that the Anti Theft Horn output circuit is not operating to factory specifications, typically indicating an open circuit, abnormal current draw, or failed actuation when the horn is commanded on. The BCM monitors the circuit feedback line to confirm the horn responds correctly to its activation signal during alarm events and routine self diagnostic checks. Whe...

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