B173d Peugeot Work ★ Best & Top

Vehicles are highly sensitive to electrical current irregularities. A dying or deeply discharged main 12V vehicle battery will cause voltage to tank during cranking. This drop can starve the BSI module of required power right at the microsecond it attempts to verify the key code, resulting in an automated data timeout and a logged B173D code. 4. BSI Software Glitches and Corruption

A third user had a situation where the hands‑free keyless entry stopped working on the driver’s side after a battery change. Diagbox showed B173D (key identification fault) and B1715 (locking status fault). The ultimate fix involved re‑synchronising the keys using the Diagbox procedure and replacing a faulty door lock actuator. b173d peugeot work

Clear codes with OBD2 / PP2000 diagnostic tool (generic scanners may not reset SRS codes – need Diagbox / Lexia). The ultimate fix involved re‑synchronising the keys using

To fix B173D, you must first understand the (Built-in Systems Interface). This is the central computer behind the glove box or under the dashboard that manages everything from your lights and windows to the immobilizer and security system. b173d peugeot work

: The car may refuse to turn over because the immobilizer is not being disarmed.

: Replace the key battery and try using a spare key if available.