Code Definition

B2111 — All Door Lock Input Short to Ground

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

About B2111

B2111 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 B2111 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 B2111 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 All Door Lock switch input as part of the central locking system. DTC B2111 is set when the BCM detects that the All Door Lock input wire is shorted to ground, meaning the input reads constantly active (locked command) when the switch should be at rest. The All Lock switch is typically located on the driver door trim, the centre console, or as part of the master power lock switch, and it provides a momentary ground signal to the BCM when pressed. When this code is set the driver may notice the doors continuously trying to lock, the doors unable to be ...

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