Code Definition

B2594 — No Movement Detected After an Unlatch During Power Open

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

About B2594

B2594 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 B2594 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.

Because B2594 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 B2594 fault code is set when the Power Sliding Door (PSD) control module successfully unlatches the door for a power open command, but no door movement is detected within the expected time window. The module monitors the hall effect or encoder pulses from the drive motor after the latch releases, and if the position counter does not increment this code logs the missing movement. The cause is typically a mechanical seize in the drive system, an electrical fault preventing motor operation, or a position feedback failure. The driver may notice that the door unlatches and pops slightly but the...

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