Code Definition

B1512 — Driver Door Handle Circuit Open

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

About B1512

B1512 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 B1512 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.

B1512 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 Body Control Module (BCM) or smart entry control module monitors the driver door handle circuit for proper electrical continuity, particularly on vehicles with passive entry systems where the handle contains a request switch and capacitive proximity sensor. DTC B1512 specifically sets when the module detects an open circuit in the driver door handle wiring, meaning the signal or supply path has lost continuity to ground or the module. This is most commonly caused by broken wiring at the door jamb flex point, a disconnected handle assembly, or a corroded terminal at the door handle connecto...

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