If this code is present, you may experience:
code is indeed an "interesting piece" of Peugeot (and Citroën) diagnostics, as it points directly to a breakdown in the conversation between the car and its key. Technically, it is defined as a Fault in identifying the mechanical/electronic key or the hands-free remote control present in the reader. Why it's a "Head-Scratcher" b173d peugeot
The wiring harness that connects the glow plug control unit to the four glow plugs sits directly on top of a hot diesel engine. Over time (60,000+ miles), the insulation becomes brittle. The wire leading to Cylinder 4 often rubs against the engine cover or a fuel line, snapping internally. You may see no external damage, but a continuity test will reveal the break. If this code is present, you may experience: