Code Definition

B2317 — Mirror Passenger Vertical Feedback Potentiometer Circuit Open

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

About B2317

B2317 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 B2317 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 B2317 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 Passenger Door Module or Body Control Module monitors the vertical position feedback potentiometer inside the passenger side power mirror to track the mirror's up to down position for the memory mirror function. DTC B2317 is set when the module detects an open circuit in the vertical feedback potentiometer signal, indicating loss of the position signal that should be present whenever the mirror tilts. The potentiometer is fed a reference voltage and its wiper returns a varying voltage corresponding to mirror tilt position, allowing the module to store and recall preset positions. When this...

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