Code Definition

B2524 — Licence Lamp Circuit Short to Battery

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

About B2524

B2524 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 B2524 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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 B2524 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 Body Control Module (BCM) monitors the licence plate lamp output circuit and expects 0V when the lamps are commanded off. DTC B2524 is set when the BCM detects battery voltage on the licence lamp feed wire while the lamps should be inactive, indicating an unintended power source on the circuit. This commonly occurs when the feed wire chafes against a constant power supply, when aftermarket lighting is incorrectly tapped into the circuit, or when an internal short develops in a lamp assembly. Symptoms may include the licence plate lamps remaining illuminated continuously, blown fuses, or re...

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