Repack — B173d Peugeot

If your Peugeot records this code in its BSI memory logs, you will likely experience one or more of the following symptoms:

in the context of Peugeot refers to a specific diagnostic trouble code (DTC)

The functions as the central gateway coordinator. Software bugs, water ingress from leaking windscreens, or incorrect vehicle configuration parameters (often flagged alongside code B2EA0 ) can cause communication drops across the immobiliser network. 🛠️ Step-by-Step Diagnostic & Troubleshooting Pathway b173d peugeot

An orange spanner light or general "Electrical circuit fault" message. Common Causes

or the hands-free remote control. It is a body-related code ("B" prefix) often logged by the Built-in Systems Interface (BSI) If your Peugeot records this code in its

A: Generic OBD2 scanners only read engine and transmission codes (P0700 series). You need a PSA-specific scanner (Lexia 3, DiagBox, or high-end Autel/Mac Tools) that can communicate with the BSI module.

Fault code on a Peugeot indicates an "Error identifying the mechanical/electronic key or hands-free remote control" . This means your car's Built-in Systems Interface (BSI) or Body Control Module is struggling to recognize the signal from your key or transponder. Common Causes or the hands-free remote control

The proximity unlock fails when walking up to the door handles, requiring the physical backup emergency key to gain cabin access.

The starter motor might turn over but fail to ignite, or pressing the Start/Stop button results in complete electrical silence.

The most common and easiest fix; a weak battery can prevent the hands-free signal from being strong enough for the reader. The "BSI Glitch":