Code Definition

B1524 — Keyless Entry Circuit Open

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

About B1524

B1524 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 B1524 is stored, the module has detected an open (broken or disconnected) electrical path 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.

B1524 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 B1524 fault code is set by the Body Control Module (BCM) when an open circuit condition is detected on one of the wiring paths associated with the keyless entry system. The BCM continuously monitors continuity on the receiver supply and signal lines, the antenna feed, and the door lock control inputs that contribute to the keyless entry function, and stores B1524 when expected current flow is interrupted. Common triggers include a disconnected receiver module, a broken wire in a door jamb harness, a corroded connector pin that has lost contact, or a failed antenna lead. When this code is a...

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