G28 is the most common reason for a Fiat Punto key not working. Other causes include water damage and incorrect battery replacement.
Always seek the advice of an expert regardless of the reason of the issue. They can offer the most effective solution to your specific issue.
Key to Immobilizer Lock for Lost Ignition
If you're not able to start your car, it could be the ignition immobilizer. This feature keeps thieves from starting your car, especially if they don't have the correct keys to do it. The best method to resolve this issue is to check the battery inside your key fob. If it's dead, replace it with a brand new one. This should solve the issue and allow you to start your car.
If your car is an earlier model, it's likely to have an electronic key that has an integrated transponder chip. The transponder sends out an ID code when the key is placed into the ignition. The computer then recognizes this code and activates the fuel system and ignition circuit. The engine should then start and the security light should stop flashing.
These keys are more sophisticated and feature a more sophisticated engine immobilizer. This system requires that the FOB be in the car for engine start-up and remain in the hand of the driver in order for the vehicle to function. If you lose your FOB it can be very expensive to replace it particularly for certain models. It is therefore crucial to keep the key FOB in good condition and secure. A lost key could cause costly repairs, or even a complete lockout which is why it's essential to keep a spare in your possession.
Remote Key Locking or Unlocking Itself Does Not Work
If the key fob in your car won't lock or unlock It's time to call a locksmith. This could be caused by many factors, including water damage or faulty buttons. Other reasons include signal interference or a dead battery of 12 volts. A locksmith will be capable of reprogramming the key for your vehicle to make it work again.
Before you call locksmiths, try using your spare key to lock and unlock your car. This will help you rule out an issue with the key fob. If the spare key won't work, you likely have issues with the receiver module inside your car.
Modern automobiles are extremely complex and often have multiple electrical systems operating at once. If one of these systems malfunctions it could cause seemingly unrelated problems. This is why it's essential to investigate a new issue before replacing any item.
It is also a good idea to determine whether the issue could be caused by another issue, such as an antenna or wiring fault in the keyless entry system software or a malfunctioning power door lock. These issues could be more costly to fix than an empty battery on the key fob or the ignition immobilizer key is lost. If you're having an issue, it's recommended consult a professional get it fixed quickly and cost-effectively.
Keyless Entry System Issues
Almost all modern cars come with remote keyless entry systems. When you press your fob to lock or unlock the car, it transmits an alert that disables the engine control unit (ECU) immobiliser. If the chip is not functioning properly it will cause the car to not start.
If you are seeing the error "Key not detected" on your vehicle, it's an indication that the battery of your key fob has failed. You can replace the button battery in your key fob easily, and the key fob will be able to communicate with the vehicle's system again.
The key fob's electronics could be damaged by exposure to water, specifically in salt water environments like a swimming pool or ocean. The key fob has rubber seals that should protect the electronic chips from damage. However if the fob is submerged for long durations it could result in the chip becoming damaged and requiring replacement.
Other issues that can cause the fob's functionality to cease include a dead 12 volt battery, receiver module problems and interference from nearby radio transmitters or a key that has not been paired requiring reprogramming. Contact an auto locksmith to repair your key fob if it's not working properly. When their key fobs are malfunctioning they often go to their local Fiat dealer. However, this can be expensive and unreliable. Contact Car Keys Solutions to get the most cost-effective and speedy solution.
Dead Coin Battery
When they have a problem with their Fiat keys, most people will visit their Fiat dealer. However this could be an expensive option. Our team at Car Keys Solutions are able to offer you an affordable and quick solution that can get you back behind the wheel as quickly as you can.
Button batteries and lithium coin cells cease to power devices long before they are fully charged So what we consider to be dead batteries actually has enough juice to harm children if it gets stuck in their nose, ear or throat or swallowed. Be sure to wrap old batteries in tape and dispose of them properly.
To replace an old battery, remove the coin-cell module from its housing and replace it with a new one. Re-insert carefully the module and then screw the plastic strip into position.