Peugeot BSI Module Fault After Battery — Repair and Cloning | The Vehicle Check
A Peugeot that develops multiple electrical faults, will not start, or has lost all central locking function after a battery change or flat battery almost certainly has a BSI (Built-in Systems Interface) module fault. The Peugeot BSI is the main body and systems control module — it manages starting, security, lighting, central locking and communication across the vehicle. A voltage event during a battery change can corrupt its memory, damage internal components or cause it to lose its initialisation state. The Vehicle Check repairs and clones Peugeot BSI modules at component level.
Why Battery Changes Cause BSI Faults
The Peugeot BSI retains vehicle configuration, key coding, mileage and security data in internal non-volatile memory. When the battery is disconnected and reconnected, a voltage spike or the act of power restoration can cause the BSI's internal memory to corrupt or its power regulation circuit to fail. The result is a module that is alive but not functioning correctly — triggering multiple dashboard warnings and preventing the vehicle from starting.
Fault codes commonly stored include U1213 (BSI communication fault), U0100 (lost communication with ECU) and BSI-specific codes relating to component initialisation failure.
BSI Repair and Cloning
We repair Peugeot BSI modules at component level — replacing failed power regulation components, repairing corrupted memory chips and restoring correct initialisation states. Where the BSI cannot be economically repaired, we clone the original module's data to a tested donor BSI, preserving your vehicle's VIN, mileage, key data and configuration.
We cover Peugeot 207, 208, 307, 308, 407, 508, 3008, 5008, Partner and Expert.
Post Your Peugeot BSI to Us
Remove the BSI, package it securely and post to our Enfield workshop. We return it repaired or cloned in 2 to 3 working days. Call 0203 489 2610 to discuss the fault.
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The Vehicle Check | Unit 8 Solway Business Centre | Tysoe Street | Enfield | EN3 7PH
📞 0203 489 2610 | 📧 info@thevehiclecheck.co.uk
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