Code Definition

B2354 — Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open

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

About B2354

B2354 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 B2354 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 B2354 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

On vehicles with memory mirrors, each mirror motor includes potentiometers that provide position feedback to the driver door module or seat memory module, allowing the system to recall preset mirror positions. DTC B2354 sets when the module detects an open circuit on the horizontal or vertical feedback potentiometer signal wire, meaning the potentiometer slider voltage is missing entirely. The potentiometer is supplied with a low voltage reference and ground from the module, and the wiper signal returns a voltage that varies smoothly across the travel range. When this code is set, the affected...

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