B173d Peugeot Work Access
The B173D fault code in Peugeot and Citroën vehicles (notably C4 Picasso, 308, 3008, 5008) indicates a failure in the BSI (Body Systems Interface) to correctly identify the mechanical or electronic key, or the hands-free remote control. This often leads to "key not detected" errors, central locking malfunctions, and non-start situations where the engine cranks but does not fire. 2. Technical Description B173D / B173D:86 (Intermittent)
A new battery is a great first step, but the issue may still be with the car's systems (fuses, main battery, BPGA, etc.). In some cases, the key itself may need to be re-programmed to the car using a professional diagnostic tool like Diagbox.
The central BSI computer drops its stored transponder memory during sudden low-voltage drops. b173d peugeot work
The symptoms of the B173D Peugeot work code can vary depending on the specific cause of the problem. Some common symptoms include:
Below is the technical content you requested, structured for diagnostic use. The B173D fault code in Peugeot and Citroën
By following the systematic diagnostic workflow outlined in this guide—starting with the battery and moving through fuse inspection, BSI reset, earth checks, and key synchronisation—most owners can clear the B173D code without expensive component replacements. Even if professional help is required, understanding the code’s meaning and common causes will enable you to discuss the problem knowledgeably with your repair shop, potentially saving both time and money.
While the car might start and drive initially, the B173D code indicates a fault in the immobilizer system. The vehicle could shut down unexpectedly or refuse to restart after you turn it off, leaving you stranded. It's best to diagnose and fix the issue as soon as possible. Technical Description B173D / B173D:86 (Intermittent) A new
A clicking sound from the steering column that doesn't result in a start.
The most common cause for "key not detected" warnings.
If you own a modern Peugeot—specifically models like the Peugeot 3008 , 5008, or Citroën Picasso —and are encountering an "Electrical Circuit Fault" or the car refuses to start, the fault code is a likely culprit. This article will break down what "B173D Peugeot work" entails, why it happens, and how to fix this immobilizer-related error. What is the B173D Peugeot Fault Code?