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Frequently asked questions about cars and motorcycles

How to Reset the BSI on the Peugeot

Model: Peugeot Peugeot Various
Part: Warning light – error code

The BSI unit centralises and processes information from three networks: - CAN HS network: "High-speed line" which includes all ECUs present in the engine compartment. - CAN LS comfort network: includes the ECUs present in the comfort CAN network and is a low-speed line; - CAN LS car network: connects the BSI to the ECUs of the assistance network, which is also a low-speed line. To reset this system, access the driver's seat, open and keep the driver's door open, turn the key and switch on the ignition but not the engine, and simultaneously pull both levers located to the right and left of the steering wheel and do not release them until you hear a sound. This way, you will have reset the BSI.

Updated on 22 May 2026 by ScegliAuto

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On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

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