B173d Peugeot [repack] Jun 2026

To fix this code, a mechanic or a confident DIYer will typically follow these steps:

Before spending hundreds at a dealership, try these steps in order: 1. Replace the Key Fob Battery b173d peugeot

: The engine may fail to crank or start because the immobilizer remains active. To fix this code, a mechanic or a

: Sometimes the car's computer simply needs a "hard reboot" to recognize its programming again. The "Fix" (How to resolve B173D) The "Fix" (How to resolve B173D) This is

This is the #1 cause of B173D in Peugeots. If the battery was disconnected or replaced recently without following the correct "Sleep Mode" procedure, the BSI can lose its configuration or corrupt the data handshake with other modules.

In the context of Peugeot and Citroën (PSA Group) vehicles, the fault code is a diagnostic trouble code (DTC) that signifies a failure in identifying the mechanical or electronic key, or the remote control. Understanding Fault Code B173D