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Fiat Punto Key Replacement Fiat Punto keys not working are typically caused by an inoperative battery. Other causes are water damage and incorrect battery replacement. Whatever the cause of your key malfunction, you should always hire an expert. They can offer the best solution to your problem. Key to Immobilizer Lost Ignition If you're unable to start your car, it may be due to the ignition immobilizer system. This feature hinders thieves from starting your car even if they do not have the right key to do so. The best way to fix this issue is by checking the battery in your key fob. If it's dead, replace it with another one. This should resolve the issue and allow you to start the car. If your car is newer, it probably has transponder chips integrated into the key. When the key is inserted in the ignition, the transponder sends an ID code to the ECU. The computer is able to recognize the code and activates both the fuel system as well as the ignition circuit. The engine should then start and the security light will stop flashing. They are more complex and include a higher-tech engine immobilizer. This system requires that the key FOB be present in the vehicle for the engine start and remain in the hands of the driver for the vehicle to function. It can be costly to replace your FOB if you lose it, particularly for some models. Therefore, it is essential to keep the key FOB in good condition and secure. Keys lost can cause costly repairs or even a complete lockout, so it's important to have a spare on hand. Remote Key Locking or Unlocking does Not Work If your car's key fob will not lock or unlock It's time to call a locksmith. The reason for this could be a number factors, including water damage or malfunctioning buttons. Other causes are signal interference and the battery is dead. Locksmiths are able to re-program the key of your car to make it work again. Try using your spare car keys to lock and unlock your vehicle before calling locksmith. This will help you identify an issue with the key fob. If the spare key won't work then you may have issues with the receiver module inside your car. Modern cars are extremely complicated and often have many electronic systems that work at once. If one of them is acting up, it can cause seemingly incomprehensible problems. This is the reason it's so important to investigate a new issue before replacing everything. It is also a good idea to see whether the issue could be due to a different issue like the wiring or antenna problem in the keyless entry system, software issues, or a malfunctioning power door lock. These issues can be more costly to repair than an empty battery on the key fob or the ignition immobilizer key is lost. If you have an issue you are having trouble with, contact a professional for an immediate and cost-effective fix. Keyless Entry System Problems Almost all modern cars have remote keyless entry systems. When you press your fob to lock or unlock the car, it sends a signal which disarms the standard engine control unit (ECU) immobiliser. If the chip fails the car will not start. If your vehicle displays the error code “Key not detected”, this is a clear sign that the key fob's battery has failed. You can replace the button cell battery inside your key fob with ease, and the key fob will be able to communicate with the car's system. The effects of water exposure can also affect the key fob's electronic components particularly in saltwater environments like an ocean or swimming pool. The rubber seals on the fob's key should shield the chip from damage. However, if the fob remains submerged in water, the chip may become damaged and will need to be replaced. Other causes that could cause the fob's functionality to cease include the battery's 12 volts being dead or receiver module issue or interference from nearby radio transmitters or a key that has not been paired requiring the reprogramming. If your key fob isn't working properly, it's recommended to seek out an auto locksmith expert to find out the cause and then fix it. A lot of people will go to their local Fiat dealer when they experience key fob issues, but this can be expensive and inconvenient. Instead contact us at Car Keys Solutions for a quick and cost-effective solution to your problem. Dead Coin Battery A lot of people will seek out their Fiat dealer when they experience an issue with their car key but this can be costly. Our team at Car Keys Solutions can provide customers with an affordable and quick solution that will get you back on the road within the shortest amount of time. Button batteries and lithium coin cells stop supplying power to a device long before they are completely depleted therefore what we consider to be dead batteries still have enough juice to harm an infant if it's stuck in their ear, nose or throat or swallowed. fiat key programming in tape prior to throwing them away. To replace an old coin battery first, carefully remove the coin cell module out of its housing, and replace it with a new one. Re-insert the battery carefully, then screw the strip of plastic back into it's place.