+------------------+ Wireless Handshake +------------------------+ | Key Transponder | <========================> | Ignition Reader/Slot | +------------------+ +------------------------+ | | Fob Battery? Wiring Loom? v v +------------------------+ +------------------------+ | BSI (Central Module) | <==================> | ECU (Engine Management) | +------------------------+ Immobilizer Signal +------------------------+ 1. Key Fob and Transponder Issues
"Economy Mode Active" or "Electronic Anti-Theft" messages on the dashboard. b173d peugeot work
Sometimes, the B173D is a phantom code . The Battery Management System (integrated into the negative battery terminal sensor) loses synchronization with the relay’s actual state. This happens after a battery replacement without proper coding. b173d peugeot work