Your Peugeot 406 doesn’t start anymore? Have you tested everything? Battery, alternator, spare keys… And you feel like the problem comes from your immobiliser ? It is quite possible, in fact that it is in question if your vehicule no longer wants to start or stalls when starting for no reason. You want to disable the immobiliser on your Peugeot 406 ? You are in the right place, we have made this content to help you see more clearly and fix your trouble linked to this part. First, we will see how the immobiliser works on your Peugeot 406, then the different ways to disable it.


How your immobiliser system works on Peugeot 406

Before detailing the different solutions available to you, here is a short introduction to demonstrate the intent and operation of the immobilizer in your Peugeot 406. This electronic part appeared 30 years ago and intends to prevent the theft of your Peugeot 406. Actually, thanks to a transponder and an antenna (coil) integrated in the key, and, a immobilisation control box integrated in the ECU and a reception antenna on the neiman, your Peugeot 406 will go each time you insert the key in the ignition, it controls that the code emitted by your key is in fact the one expected by your immobilization box. It is only at this instant, that it will permit you to turn on your car. It is thanks to RFID technology (chip in the key) that this device will work.

The different solutions to bypass the immobiliser on your Peugeot 406

Enter the code to turn off the immobiliser

First methodology, your key no longer permits your Peugeot 406 to start, you want to deactivate the immobiliser of your Peugeot 406, but first of all you should try this technique to start it and take it to a garage verify that you can not perform a less important process to reestablish the normal start of your vehicle. Actually, with your vehicle you should have a spare key (which you should try and which should start your Peugeot 406), but if you don’t have it you should at least have the “code card”, it includes the start code. Thanks to this code, you will still be able to start your vehicle by entering it manually. To do this, turn on the ignition, use your centralized button to enter the digits, several quick presses (example: 2 for digit 2) then a stop of one and a half seconds to confirm the digit and resume, duplicate the process until you have entered the full code. This should allow your Peugeot 406 to start without having to remove the immobiliser.

Repair your key at a key specialist or your dealer

If even though a battery change, several attempts to enter the immobiliser code on your Peugeot 406 still doesn’t want to start, it’s most likely your key that’s at issue. We can understand that you still want to bypass the immobiliser system from your Peugeot 406. Actually, your transponder must have been weakened or must have fallen off your key. To correct this problem, only option, go to a key specialist (also available on the internet) or, at your car dealer who can restore your Peugeot 406 key. Determined by who you go to the repair should cost you about 100 euros if you still have a copy or your “code card” and about 350 euros at your car dealer if you have no support and you want a new functional key, it will avoid you having to remove the immobilizer from your Peugeot 406.

Manually remove your immobilizer

Although you may be thinking to bypass the immobilizer from your Peugeot 406, this is not advised at all for many reasons. First your Peugeot 406 would be much more vulnerable to theft attempts. Actually, without an immobiliser box, simply doing “the wires” may be enough to start it. Moreover to that, your insurance, in case of theft most likely won’t refund you if it finds out that the immobiliser on your Peugeot 406 has been removed, bypassed or deactivated. This if you still want to do it, some websites online still give the process, we have made the choice not to disclose it, because it could help people with bad intentions.

If you want more tutorials on the Peugeot 406, go to our Peugeot 406 category.