Code Definition

B2316 — Mirror Passenger Vertical Feedback Potentiometer Circuit Failure

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

About B2316

B2316 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 B2316 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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 B2316 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 B2316 is a general circuit failure code set when the module sees the vertical feedback signal outside its expected operating range, fails to detect a valid change in signal during mirror movement, or detects an internal sensor fault that does not specifically indicate open, short to ground, or short to battery. The vertical potentiometer is fed a reference voltage and returns a...

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