B173d Peugeot Upd Now

The car may crank but fail to fire, or it may not react to the start button at all.

: In rarer cases, the internal antenna that reads the key signal or the wiring to the hands-free module may be damaged.

"Key not detected" or "Immobiliser fault" messages on the dashboard. Intermittent central locking issues. Recommended Troubleshooting Steps b173d peugeot

is a specific diagnostic trouble code (DTC) that often appears on the dashboard of modern Peugeot vehicles (including the 208, 308, 2008, 3008, and Partner ranges). If you have plugged in an OBD2 scanner and seen this code, or if your mechanic has mentioned it, you are likely dealing with an issue related to the vehicle’s Supplemental Restraint System (SRS)—commonly known as the airbag system.

Essentially, this code implies that the Body Control Module (BSI— Boîtier de Servitude Intelligent ) is unable to communicate correctly with the heating and ventilation control unit, or the software configuration data for the HVAC system is missing, corrupted, or incompatible. It is a "communication/configuration" error rather than a mechanical failure like a broken window or a burnt-out motor. The car may crank but fail to fire,

Use a quality OBDII scanner. Cheap

: If the fault persists after changing batteries, performing a BSI reset (a specific sequence of disconnecting/reconnecting the car battery) can sometimes clear software glitches. Detailed procedures are often shared on communities like Peugeot Forums . Intermittent central locking issues

A warning message appearing on the dashboard or touchscreen stating the remote is not present.

The fault code in Peugeot vehicles indicates a fault in identifying the mechanical or electronic key (or the hands-free remote control) within the reader . This error typically signals a communication failure between your key fob and the vehicle's Built-in Systems Interface (BSI), often resulting in a "key not detected" message or a complete failure to start the engine. Symptoms of Code B173D