Code Definition

B2595 — Anti Theft Input Signal Circuit Failure

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

About B2595

B2595 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 B2595 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 B2595 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 B2595 fault code is set when the Body Control Module (BCM) detects an electrical fault in the anti theft input signal circuit. The anti theft system uses inputs such as door ajar switches, hood switch, trunk switch, glass break sensor, and ignition status to determine an unauthorised entry attempt, and the BCM monitors these inputs for valid signal states. When one of these inputs reads outside the expected range or fails to change state correctly, this code logs the circuit fault. The driver may notice the security indicator lamp staying on, the alarm arming and disarming incorrectly, or ...

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