How to disable the immobiliser Citroen C5 ?

Your Citroen C5 doesn’t start anymore? Have you tried everything? Battery, alternator, spare keys… And you feel like the problem emanates from your immobiliser ? It is actually plausible, actually that it is in question if your automotive doesn’t want to start anymore or stalls when starting for no reason. You want to disable the immobiliser on your Citroen C5 ? You are on the good website, we have made this article to support you see more clearly and resolve your concerns relating to this component. First, we will see how the immobiliser works on your Citroen C5, then the different ways to disable it.

How your immobiliser system works on Citroen C5

Before explaining the different solutions available to you, here is a short intro to show you the goal and functions of the immobilizer in your Citroen C5. This electronic part came out 30 years ago and aims to prevent the theft of your Citroen C5. Actually, thanks to a transponder and an antenna (coil) included in the key, and, a immobilisation control box included in the ECU and a reception antenna on the neiman, your Citroen C5 will go each time you insert the key in the ignition, it controls that the code emitted by your key is actually the one asked by your immobilization box. It is only at this moment, that it will allow you to turn on your car. It is thanks to RFID technology (chip in the key) that this unit will work.

First methodology, your key no longer enables your Citroen C5 to start, you want to turn off the immobiliser of your Citroen C5, but first of all you should try this procedure to start it and take it to a mechanic examine that you can not accomplish a less important operation to restore the normal start of your car. Actually, with your car you should have a spare key (which you should try and which should start your Citroen C5), but if you don’t have it you should at least have the “code card”, it contains the start code. Thanks to this code, you will still be able to start your car 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 validate the digit and resume, repeat the operation until you have entered the full code. This should let you start your Citroen C5 without having to remove the immobiliser.

Fix your key at a key specialist or your car dealer

If in spite of a battery change, different attempts to enter the immobiliser code on your Citroen C5 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 device from your Citroen C5. Actually, your transponder must have been damaged 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 dealership who can restore your Citroen C5 key. Depending on who you go to the repair should cost you about 100 euros if you still have a duplicate or your “code card” and about 350 euros at your car dealership if you have no support and you want a new functional key, it will avoid you having to remove the immobilizer from your Citroen C5.

Manually remove your immobilizer

Although you may be attracted to bypass the immobilizer from your Citroen C5, this is not recommended at all for many reasons. First your Citroen C5 would be much more vulnerable to theft attempts. Actually, without an immobiliser box, simply doing “the wires” may be enough to start it. Furthermore to that, your insurance, in case of theft most likely won’t refund you if it knows that the immobiliser on your Citroen C5 has been removed, bypassed or deactivated. This if you still want to do it, some internet pages still give the methodology, we have made the choice not to disclose it, because it could benefit people with bad intentions.

If you need more guides on the Citroen C5, go to our Citroen C5 category.