there isn't one, usually a key
Peugeot 106 workshop manual.
To reset the immobilizer on a Peugeot 106, first ensure the vehicle is in the "Off" position. Insert the key into the ignition and turn it to the "On" position without starting the engine. Leave it in this position for about 10 minutes until the immobilizer light turns off, then turn the key back to the "Off" position and try starting the engine. If the issue persists, consult the vehicle's manual or a professional for further assistance.
Check the fuses, this happened to mine and it was a fuse under the glove box.
Most likely one of the control rods have come loose. It COULD be the lock mechanism, but probably not.
May require a new ignition barrel. The 106 is known for problems with the ignition barrel. Looking at a bill of �60 - �200 depending on where you go and the type of immobilizer used on the car.
the Citroen saxo and Peugeot 106 are identical mechanically and parts can be interchanged.this link gives step by step instructions on how to deactivate the immobilizer http://www.106owners.co.UK/forums/showthread.php?t=38926
The Central Siberian Plateau, Russia.
sounds like you have put the code in wrong too many times, disconnect then reconnect the battery, make sure you have the correct code, then it will work.
I had the same problem. Removed lock mechanism, cleaned, oiled and replaced. A fiddly job as bits fell off - it had seen better days. Once all back together it locks if I do the following: Get out. Close door. Lock door. Open door. Close door.
mine does this in cold weather just climb in other door, i have to!
AMC form 106 is used when processing an originating mission capability (MICAP). It is also used to control and monitor shipment (Forward Supply System).