The BSI (Body System Interface) on the Peugeot 307cc is the main computer system that controls everything in the car, from immobiliser, to communicating with the indicator stalk unit, wiper unit, engine ECU and more. Before tracing odd electrical faults it is worth rebooting the BSI computer in case it has become corrupted.
To Reset the BSI on a Peugeot 307cc follow these steps:
1. Disconnect the diagnostic tool and any other plug in accessories.
2. Put the driver’s window down, lift the bonnet and ensure all equipment is switched off (Stereo, Heater etc).
3. Ensure all doors and boot are closed and remove key from the ignition through the drivers window.
4. Wait for 3 minutes (do not open any doors), disconnect the vehicle battery + terminal and wait a further 15 seconds.
5. Reconnect the vehicle battery + terminal, wait a further 10 seconds (do not open doors.)
6. Switch on the side lights through the driver's window.
7. Switch on the ignition and check system’s functionality.
8. Hold lock button on key down for 10 seconds.
9.remove key and open & close drivers door twice. Test central locking system by locking and unlocking the car with the key fob.
10. Start the engine and complete the system’s checks.
NOTES:
Some users have reported that this procedure maybe need to be repeated several times in order to successfully clear a fault.