Code Definition

B1523 — Keyless Entry Circuit Failure

System: Body  |  Type: Manufacturer-Specific  |  Make: Generic

About B1523

B1523 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1523 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.

B1523 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The B1523 fault code is a Body subsystem code stored by the Body Control Module (BCM) or equivalent body and security module, indicating a circuit fault in the keyless entry system. The BCM monitors the wiring, antennas, receiver, and switches associated with the keyless entry function and sets this code when an open circuit, short to ground, short to power, or out of range condition is detected on one of these circuits. Keyless entry systems typically include the remote transmitter receiver, the door lock control switches, the exterior keypad where fitted, and on later vehicles the passive en...

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