Are you afraid of losing your car because of a damaged car immobilizer? Learning how to disconnect a car immobilizer will help you to save your car’s engine from getting hurt, and then you can install another one.
A car immobilizer is a system that helps prevent your car from getting stolen, but sometimes the system gets damaged. Steps on how to disconnect a car immobilizer are simple and easy to follow. To disconnect the immobilizer from a car, disconnect it from the engine control unit.
This article will help you to understand the steps of disconnection along with the information on the working of the immobilizer and tips to disconnect it from your car engine control unit.
Key Takeaway:
- To disconnect the immobilizer, it is essential not to damage the car’s engine.
- Instead of eradicating it from your car, leave the task to a mechanic and disconnect it from the engine control unit (ECU)
- You can remove the immobilizer with or without the keys or by using the codes. But ECU is the best way to remove it from the engine control unit.
What Is a Car Immobilizer?
The car immobilizer system works on the principle of an in-built security system that allows you to detect who has the right key to start your car, protecting your car from theft. The original legend of your vehicle is the coded one having a transponder chip in it.
Features of Transponder Chip:
- It stores and transmits the original passcode to start the car with the correct key.
- When the insertion of the original key happens in the key fob, the transponder chip passes the code your key has to the car’s engine control unit, which allows it to match with the authentication of the code in the ECU.
- If it matches, the car will start, and if it doesn’t, then ECU doesn’t activate the system of the ignition circuit.
To understand the disconnection of the immobilized system, you need to know how it works. The immobilizer system effectively keeps the thief away from your car.
Features of Immobilizer:
- Usually, an immobilizer has an alarm to make you alert if someone is trying to get in your car.
- Immobilizer alerts the owner and stops the thief from entering your car.
- It causes trouble and hindrance in the mobilization of a car.
Now, the following are the steps to disconnect the car immobilizer if you are thinking of reinstalling the system or if the system is likely to damage your car’s engine.
How to Disconnect a Car Immobilizer?
In regards to how to disconnect a car immobilizer or remove the immobilizer, there are several ways to do it. In some cases, it requires a key, and if you lose the original key, you can remove the immobilizer by using the code to turn it off. Here the disconnection is happening with the help of the engine control unit. Following are the easy steps to disconnect the immobilizer from the engine control unit.
Step 1: The Steering Column
There is a steering column at the top of the car’s steering system; lower it to access all parts of the car and get the disconnection done.
Step 2: Removing of Steering Cap
You can access the wires that help you get to the car immobilizer, so remove the steering cap.
Step 3: Trace Out the Cable
It’s essential to locate the correct key that will lead you to the unit, so be sure while tracing the cable because the cables are usually into one another.
Step 4: Disconnect The Wire
Remove the wire from its fuse. It is a struggle because it can get stuck, and keep a cutter with you in case you get stuck anywhere. When you put the cable out and disconnect it, you will be able to see the immobilizer having a larger loom.
Step 5: Cut Down the Insulator
Cut the insulator with the help of a blade around the wire.
Step 6: The Ignition Switch
A 12-volt permanent feed directly sends the electrical voltage to ignite the system. Turn ON the ignition key so that a wire can receive the voltage. With this, you will be able to work on the immobilizer more.
Step 7: Keep The Trigger Wire
As you reach the last steps of disconnecting the wire, you can see the trigger wire that helps prevent the current from going into the immobilizer until the dongle is registered in the receiver. ECU is connected to an immobilizer via this wiring.
Step 8: The Two Piles of the Earth
Access to the big fuse box is now easy. Just crush the two piles of earth to 12 miles. Now do the battery disconnection and get lead to the ignition connector by damaging the two wires.
Here you go! Your immobilizer disconnected from the ECU system, and now you can fulfill your purpose of it.
Crazy Facts:
- The immobilizer is here to eliminate the dangerous techniques of starting a vehicle by using hotwire, hammer or screwdriver, and the red coil wire.
- Your car won’t get damaged if you disconnect the immobilizer in the above manner.
- To remove or disconnect the immobilizer from your car, don’t interrupt the car battery by dragging it. The data may need to be recovered.
- If your new key isn’t right going along with the system, the car’s engine won’t ignite.
- The cost depends upon the model type and varies from car to car if you plan to remove it from some professional mechanic.
Conclusion:
In sum, disconnecting the immobilizer is a good option in case of reinstallation or its condition worsens. Still, it is a beneficial system to keep your car safe from thieves and keeps you and your family safe.
Understand how to disconnect a car immobilizer from the system so that you can fulfill your purpose. The immobilizer can get problematic for your car’s efficiency. If you want to remove the immobilizer entirely from your car, you need to change the programming system of the engine control unit. The removal of the immobilizer isn’t time taking in normal conditions.