Your Opel Astra doesn’t want to start? Have you tested everything? Battery, alternator, spare keys… And you feel like the trouble originates from your immobiliser ? It is reasonably plausible, in fact 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 Opel Astra ? You are on the good website, we have made this content to help you see more clearly and solve your concerns connected to this element. First, we will see how the immobiliser functions on your Opel Astra, then the different ways to disable it.

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How your immobiliser system functions on Opel Astra

Before explaining the different solutions available to you, here is a short introduction to demonstrate the intent and operation of the immobilizer in your Opel Astra. This electronic part appeared 30 years ago and aspires to prevent the theft of your Opel Astra. In fact, 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 Opel Astra will go each time you insert the key in the ignition, it checks 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 enable you to turn on your car. It is thanks to RFID technology (chip in the key) that this unit will work.

The different solutions to bypass the immobiliser on your Opel Astra

Enter the code to turn off the immobiliser

First methodology, your key no longer enables your Opel Astra to start, you want to turn off the immobiliser of your Opel Astra, but first of all you should try this process to start it and take it to a mechanic examine that you can not accomplish a less significant operation to restore 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 Opel Astra), 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 confirm the digit and resume, repeat the operation until you have entered the entire code. This should enable you to start your Opel Astra without having to remove the immobiliser.

Fix your key at a key specialist or your dealer

If even though a battery swap, several tries to enter the immobiliser code on your Opel Astra still doesn’t want to start, it’s likely your key that’s at issue. We can understand that you still want to bypass the immobiliser device from your Opel Astra. In fact, your transponder must have been injured or must have fallen off your key. To fix this trouble, only solution, go to a key specialist (also available on the internet) or, at your car dealer who can repair your Opel Astra key. Based on 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 Opel Astra.

Manually remove your immobilizer

Although you may be tempted to bypass the immobilizer from your Opel Astra, this is not advised at all for different reasons. First your Opel Astra would be much more vulnerable to theft attempts. In fact, 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 acknowledges that the immobiliser on your Opel Astra 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 wish more guides on the Opel Astra, go to our Opel Astra category.