Code Definition

B2569 — Liftgate Disarm Switch Circuit Short to Ground

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

About B2569

B2569 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 B2569 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 B2569 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 monitors the liftgate disarm switch input, which is a momentary switch built into the liftgate handle, lock cylinder, or release button that signals the BCM to disarm the anti theft system when the operator opens the liftgate using a valid method. DTC B2569 is set when the BCM detects the disarm switch signal wire stuck low (shorted to ground) for longer than the calibrated threshold, indicating that the switch is either constantly closed or that the wire between the BCM and the switch is shorted to chassis. Because the BCM cannot tell whether a valid disarm event is oc...

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