Code Definition

B2523 — Licence Lamp Circuit Failure

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

About B2523

B2523 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 B2523 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 B2523 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 circuit through a feedback line that detects current draw or circuit continuity when the lamps are commanded on. DTC B2523 is set when the BCM detects an open circuit, short, or failed bulb in the licence lamp feed, typically while the tail lamps are active. The licence plate lamps illuminate the rear number plate during night driving and are required to remain functional under road rules in most jurisdictions. When this code is stored, the licence plate area may be dark at night, leading to roadworthy failures and infringement risk...

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