Your Citroen C4 doesn’t want to start? Have you analyzed all sorts of things? Battery, alternator, spare keys… And you feel like the problem originates from your immobiliser ? It is actually quite plausible, indeed that it is in question if your vehicule doesn’t want to start anymore or stalls when starting for no reason. You want to disable the immobiliser on your Citroen C4 ? You are on the good article, we have created this post to help you see more clearly and solve your problems related to this part. First, we will see how the immobiliser works on your Citroen C4, then the different methods to disable it.

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How your immobiliser system works on Citroen C4

Before detailing the different choices available to you, here is a short intro to describe the intent and operation of the immobilizer in your Citroen C4. This electronic element was invented 30 years ago and aims to prevent the theft of your Citroen C4. In fact, 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 Citroen C4 will go each time you put the key in the ignition, it checks that the code emitted by your key is indeed the one expected by your immobilization box. It is only at this instant, that it will enable you to start. It is thanks to RFID technology (chip in the key) that this system will work.

The different solutions to bypass the immobiliser on your Citroen C4

Enter the code to turn off the immobiliser

First technique, your key no longer allows your Citroen C4 to start, you want to turn off the immobiliser of your Citroen C4, but first of all you should try this approach to start it and take it to a mechanic check that you can not execute a less significant process to reestablish the normal start of your car. In fact, with your car you should have a spare key (which you should try and which should start your Citroen C4), 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 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 process until you have entered the entire code. This should let you start your Citroen C4 without having to remove the immobiliser.

Fix your key at a key specialist or your car dealership

If even though a battery change, several attempts to enter the immobiliser code on your Citroen C4 still doesn’t work, it’s likely your key that’s at issue. We can understand that you still want to bypass the immobiliser device from your Citroen C4. In fact, your transponder must have been affected or must have fallen off your key. To fix this problem, only option, go to a key specialist (also available on the internet) or, at your car dealer who can restore your Citroen C4 key. Based 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 dealer if you have no support and you want a new functional key, it will avoid you having to remove the immobilizer from your Citroen C4.

Manually remove your immobilizer

Although you may be thinking to bypass the immobilizer from your Citroen C4, this is not recommended at all for some reasons. First your Citroen C4 would be much more vulnerable to theft attempts. In fact, without an immobiliser box, simply doing “the wires” may be enough to turn your car on. Additionally to that, your insurance, in case of theft most likely won’t refund you if it acknowledges that the immobiliser on your Citroen C4 has been removed, bypassed or deactivated. This if you still want to do it, some internet pages still give the technique, we have made the choice not to disclose it, because it could help people with bad intentions.

If you want more tutorials on the Citroen C4, go to our Citroen C4 category.