Car Immobiliser Repair
In the late 20th century, automakers began to use immobilisers for cars because hot-wiring was becoming more popular with thieves. The immobiliser prevents your car's engine from starting in the event that the chip inside your key fob is damaged or does not meet.
This means it's important to get your car key immobiliser repair completed quickly when it's faulty or broken. Here are a few common causes for the immobiliser of your car not working:
Dead Batteries
Key fob problems are often caused by batteries that are dead. Battery problems can be caused by long-term use, harsh environmental conditions or ageing. When a battery dies and is no longer able to supply the power needed to operate the key fob and transmit the signal required by the immobiliser system. This could stop the car from starting, resulting in the need for a professional technician to complete an immobiliser system repair.
Most times, a simple replacement is all that is needed to revive an old battery and get it back to working. A good quality coin-style battery can be purchased at a local hardware store or at some general retailers for between $5-10. Once you've purchased a new battery, remove the old one from the fob and carefully open the case. There's an opening or notch on the seam that separates the top and bottom halves. Use a coin or flathead screwdriver into the slot and then work around the edges to pop open the fob. Then, insert the new battery and snap the two halves of the fob shut. After you've completed the process, you can recycle the old battery at a nearby collection site.
If the new battery does not solve the issue it could be an issue with the RFID system in the key fob itself. Most vehicles with a push-button ignition design require that the fob be placed close to the barrel of ignition to verify its presence and send the proper signal for the vehicle to start. If the RFID in the key fob cannot communicate with the vehicle, you'll have to get a new key made or go to a dealer to fix the immobiliser.
If replacing the battery doesn't solve the issue it's worth taking the key fob apart and examining the buttons that seem to be not in the right place or are damaged. It's common for buttons to become out of alignment over time, because your key fob is bound to be jostled around a lot.
Key for transponder not working
A transponder key that's not working could have severe consequences. Transponder keys are different from the traditional keys made of metal that engage the ignition mechanically. They feature an electronic microchip that transmits an unique number to the immobilizer system of the car to confirm its identity. This adds an extra layer of security, decreasing the chance of thefts and other vehicle-related crimes. Transponder keys, just like any electronic device, are prone to various issues, including those relating to the chip's function.
Transponder chips are delicate and even a tiny amount of physical damage can significantly impact their ability to function. This is why it's crucial to regularly inspect the transponder chip for signs of wear and tear, because any damage that occurs could be a direct cause for an immobiliser malfunctioning in your car.
In addition, the internal microchip in the transponder key is sensitive to environmental and water conditions, which could hinder the ability of it to communicate with the immobilizer system of a vehicle. Therefore, it is essential to keep your key fob and key chain away from any water or other contaminants as much as is possible.
It is important to keep in mind that transponder keys are programmed specifically for a specific vehicle. Changing any sensitive parts could result in compatibility issues that could compromise its function. It's best to avoid making any modifications to a key unless you are equipped with the right knowledge and equipment.
Fortunately, if you've got keys that are in need of repair or replacement, a professional locksmith will be able assist you. They can duplicate your key, or create new keys, and program it to match the immobilizer system of your vehicle, ensuring it is working correctly. This process isn't as easy as copying a car key made of metal. It requires special tools to ensure that the software is programmed correctly with the proper information.
Antenna or Receiver is damaged.
The transponder chip inside your car key transmits signals that are recognized by the ECU to ensure that it is the correct key to start the car. If it isn't the correct key, the immobiliser system will stop the engine from being started. This is to deter thieves from using stolen or duplicate keys to access your car's motor.
However, if the signal isn't able to reach the ECU because of a problem with the receiver or antenna, your car won't start. A professional auto locksmith is in a position to assist you in resolving this issue.
This could be due to a number of reasons which include an antenna that isn't compatible or electrical interference issue. Radio frequency interference (RFI) can be caused by communications equipment and transmitters such as cable television systems, computers and digital devices, heavy electrical equipment or lighting systems. The coaxial antenna cable may be damaged or disconnected. This could happen when pets run around the house or when the cable is twisted or pinched during installation.
Another reason that the antenna might not be functioning is that the receiver is far away from the antenna. Connect the receiver to another antenna and then check. If the error message persists it is possible that you need to replace the antenna or reroute the coaxial cable.

Antennas don't really go bad however they may get bent or pinched, or loose from the connector, which can cause the RF levels to drop. It is also important to determine if there is any equipment between the antenna and the receiver, such as a surge protector or splitter since this can affect the signal strength.
If the EEPROM programming method is used to program a new car key, it will require the removal of specific modules from your car (security components) and then reading the "password" and other stored information from them. This requires a lot of knowledge, as there is a risk that the information can be damaged. keys repair will reduce the risk by reading data directly from the module an instrument that is specifically designed for this purpose.
Faulty Electronics
Many modern cars have security systems that prevent them from starting the engine if they don't have the car key or remote. These systems make use of transponder chips, RFID (Radio-Frequency Identification) technology or immobiliser control units to authenticate the key or fob once it's inserted into the ignition. This can be a great way to reduce vehicle theft, but like any piece of technology, it's not always guaranteed to fail.
If the security light on your dashboard is lit solid, it means that the car immobiliser hasn't been able to receive the signal from the key or fob. This can be due to a variety of things, including a battery that is depleted on the keyfob, or physical damage on the key. If you're experiencing this issue, follow the manufacturer's instructions to perform a reset on the system, or call a professional mechanic for assistance.
When you insert your transponder into your key, the chip transmits an alert to the immobiliser system of the car. This code is then compared against the codes stored on the computer. If the codes are the same, the engine will turn on and the immobiliser will shut off. If the immobiliser doesn't detect the signal, it will stop the engine from turning and could cause you to be stuck in a remote area.
There are many problems that could cause the immobiliser in your car to stop working correctly, but the majority of them are easy and inexpensive to address. A dead or dying keyfob battery is the most common culprit, and is easily identified with a simple diagnostic test. If this does not resolve the issue, it may be that there are other issues in the electrical system of your vehicle that could be impacting the functioning of the immobiliser. If this is the situation, a professional should inspect the wiring in your car and look for indications of a damaged or loose connection that could be affecting the performance of the immobiliser.
A car key immobiliser is a way to safeguard your vehicle from unauthorised access. Although these systems are generally quite reliable, they can sometimes malfunction and require repairs or replacing. You can prepare yourself for the occasional issue by knowing the most frequent causes and symptoms.