Everyone understands the importance of an immobilizer key for cars. They are the primary line of defence against burglars and carjackers. Modern vehicles use them as the sole means of security. These electronic devices protect and safeguard them 24/7.
This tiny device is a lifesaver. It operates technologically using an electronic chip embedded in the car’s Electronic Control Unit (ECU). The chip reads smart key codes and allows the car’s ignition to start. The device further enables a vehicle to start if and only if it can sense the correct code from the key.
In other words, you can start a 1994 Toyota Corolla using a key from the same model. But for Toyota Corolla models after 2010, that is no longer possible. This kind of system, hence, ensures that thieves cannot bypass the ignition and drive the car away.
Understanding a car engine immobilizer?
A car immobilizer is a modern electronic device that safeguards your vehicle from carjacking and theft. It is a key component of its security. Millions use it today.
The anti-theft engine immobilizer features a microchip attached inside that sends a signal to the vehicle’s engine control unit. The engine cannot start without this signal. It is present in two forms:
- A car key.
- A smart key fob.
Hence, if a car thief attempts to start the car’s engine illegally without the smart key, the engine will be unable to ignite the combustion chamber and will immediately cut off the fuel supply.
Along with an excellent and foolproof car insurance policy, advanced security mechanisms such as an engine immobilizer and other systems provide an extra layer of protection for your car. It is also one of the best safety measures to help safeguard your vehicle.
Different kinds of Engine Immobilizing anti-theft systems
Two different types of immobilizers are used for different vehicles and their engine management systems:
Mechanical Immobilizers
Mechanical immobilisers are physical devices that utilise legacy technology and operate on various systems. They stop automobiles from moving. How do they work? They prevent the following mechanical devices from moving:
- Gearbox.
- Steering Wheels.
- Tires.
Electronic Immobilizers
Unlike their mechanical counterparts, the electronic immobilisers do not target different systems. They are electronic devices that use more advanced technology to prevent the engine from starting.
This anti-theft system releases electrical signals to the engine control unit (ECU). It stops the starter motor and fuel system, preventing the ignition system from igniting and starting the vehicle.
Electronic immobilisers use combinations and variations of security codes. How does an immobilizer work? Simple: The system they use consists of two-tier security levels:
- A permanent code.
- An extra changing code.
Hence, whenever the key switches the ignition on, the system’s intelligence changes the second code, i.e,. Pushes the code into the key.
When users turn off the ignition, the immobilizer starts processing the personal code. The second rolling code follows this. The engine only works when both codes match. If there is a mismatch or the second code is absent, the engine won’t start. Even if a thief attempts to short-circuit the ignition circuit, the engine will not start.
How good is it for your car? As mentioned earlier, the facts explain the benefits of an immobilizer key for your vehicle.
What happens if car owners lose their car’s immobilizer key?
Losing the immobilizer key is indeed a problem. It can feel like the end of the world, but it isn’t. Here are some tips to follow in case you lose yours:
Contacting the Car Dealership or a Professional Locksmith
Both the car dealership and a professional locksmith possess the expertise and tools necessary to assist car owners in retrieving or replacing the code. Yet some services may require proof of ownership (especially the car’s Vehicle Identification Number (VIN)). Hence, car owners must ensure they have it on hand.
Reprogramming the car’s immobilizer system
The system can be reset to accept a new code. A dealership or a certified professional locksmith typically performs this.
Replacing either the ECU or the Car immobilizer key
Replacement is advised if the immobilizers cannot be fixed. Replace either the ECU or buy a new one. Corresponding code is needed for the latter.
Tips for the maintenance of Car Immobilizer Keys
It is wise to keep all car engine immobilizers safe, effective, and reliable at all times. Experts have devised the following tips to help keep them in proper shape.
Regular checkups of the car battery
The key fob often relies on the battery for proper function. Change the battery to prevent defects from occurring.
Protect the Smart Key at all times
No car owner should ever lose their car’s smart key. They must keep it secure, as the anti-theft system will be at higher risk of theft.
Give Priority to Timely Software Updates
Keeping all anti-theft systems up to date ensures proper communication between the ECU, Transmitter, and the Transponder chip.
Regular Professional Inspections
Records of regular inspections help. This ensures professionals inspect both the car and the immobilizer. Doing this will help avoid system malfunctions and boost the car’s safety.
Technicians can identify corroded or faulty wiring that may cause the car’s immobilizer key to malfunction. It can also cause faults in the ECU, sensors, or both.
Avoid placing them near strong magnetic devices
The immobilizer should not be placed near magnetic devices. TVs, stereo systems, and other appliances can damage it.
Protect them from moisture and high temperatures
Protect Immobilizer Keys from high temperatures, humidity, and moisture.
Over to You
Your car’s Immobilizer Key is its high-tech key to entry and starting of your beloved vehicle. It can be replaced if lost. Yet, it can cause numerous problems. Please keep it away from moisture and magnetic fields. It will malfunction if kept close.
