Your Honda Civic doesn’t start anymore and you know it’s because of your immobilizer but you don’t know specifically how it works or how to find it? We will try to provide you with an answer in this article.
First, we will explain what this famous immobilizer is for and just how it works on your Honda Civic.find-anti-start-code-honda-civic

Anti-start utility on your Honda Civic:

This tool is of course used as an anti-theft protection. Indeed, it is programmed to be able to start your Honda Civic only if the key which includes this code is inserted. We keep in mind these movies where thieves adjust a few wires under the dashboard to start the engine, which is very unlikely with the anti-start system.

Anti-start operation on your Honda Civic:

To put it simply, we have a transmitter and a receiver that work together to validate the operation and thus switch on the engine. The immobilizer has the transmitter, and will consequently issue a code request when the key is inserted in your Honda Civic. Imagine this transmitter as a doorkeeper who would ask for an a way in code when someone knocked at the door.
This code request is directed to the key, which subsequently, sends a unique user code, specific to the start system, and if this code matches, then the anti-start will allow the engine start.
The procedure is very simple. However, when mentionning double safety, we also suggest potentially more possibilities of breakdowns or various failures unfortunately.
In the next paragraph, you will find the various breakdowns you could experience on your Honda Civic.

Immobilizer failures:

There may be various factors that prevent your Honda Civic from starting because of the immobilizer. First of all, stupidly, you’re not using the right key. It may seem not important but it happens!
If you have the right key, you have two options left:

  • Option n1: The transmitter is involved, so the immobilizer. Usually, it is easy to establish if you have a duplicate key. If, with the two keys of your Honda Civic, you have the same difficulty, then it is the anti-start that is flawed and therefore must be replaced or disabled. Doing so will cost less than replacing it, but your car will be more exposed to theft and your insurance may not cover you if your car is stolen.
  • Option n2: The difficulty comes from the receiver, the key, which transponder has been harmed. This can be replaced for less money by a professional than the anti-start system.

If you get in touch with your mechanic, he will obviously offer to tow your Honda Civic and charge a high price for everything, he will not give you the code quite readily. For security reasons alone, it is legally impossible to send out the code to you. You must send your car.


  • – First try to find where the failure on your Honda Civic came from. Then act accordingly. It would be a shame to replace the entire immobilizer system when the key is defective.
  • – Make a estimate at a garage and then consider an replacement at an online professional, which will often be more efficient and less expensive.

If you have any additional questions about the Honda Civic, do not hesitate to consult our Honda Civic category.