Key Fob Replacement for the Seat Ibiza
The facelifted fifth generation Ibiza is an option in the competitive supermini segment. It is competing with the Renault Clio and Peugeot 208 as well as the Ford Fiesta.
Using a thumb nail or small flat head screwdriver (A) to lift up the key fob compartment cover (B). Replace the CR2025 battery, making sure it is installed in the proper direction.
Dead Coin Battery
The most common reason for a key fob that does not unlock or lock your car is a dead battery. When it is dead you will see an increase in range or no power. It is easy to replace it with a new (CR2025) one from your local supermarket. Be aware that faulty or unsuitable batteries can damage the key fob. Make sure that the replacement battery is the same size and voltage and that it is the same specification.
If your fob has been exposed to clean water, such as rainwater or soapy tap water It is probable that corrosion has damaged the chip's electronic components. You could clean the chip with isopropyl or electronic cleaners to see if this can help, but that the chip is fried.
The most simple solution is to purchase a new key fob. They are available from most major dealerships and can be fitted by an experienced mechanic. seat spare key can also buy them online, such as on eBay. The best option is to work on a flat, level surface with adequate lighting. This will make it easier to work on the smaller parts inside. This will also help you to avoid putting something back in the wrong place. Always work on the key fob in a secured and safe place.
Water Damage
You may think your key fob is damaged if you drop it into an unintentional pool or accidentally wash it. There's a chance. When the circuit board on the fob is exposed to water, it turns into conductor that shorts the components. It also speeds up corrosion and rust.
Fortunately, this is not difficult to fix. Find something absorbent, and place it inside the fob. Paper towl or tissue is ideal. Use a cotton swab with isopropyl to wash the circuit board and any other components. Allow the circuit board to air dry in a warm, dry environment for several weeks.
Replace the battery once the fob has dried with a fresh one that is the same dimensions and polarity ('+' (pointing upwards). The fob may be difficult to open to get to the battery, however if you keep a flat-head screwdriver in your toolbox it will be a breeze to insert. After the fob is rebuilt, it should operate in a normal manner. If it does not work, you may have to re-program it or replace the module.
Radio Interference
If a keyfob works properly, it broadcasts a radio signal that is received by a receiver module inside your vehicle. If the signal is not received, your key fob won't function. This could be due to objects such as weather conditions, objects, or other transmitters operating on the same frequency in close proximity to your car.
This could cause your key fob's button to not work the vehicle's features for example, the ignition switch or security system. It is recommended to replace the battery of your key fob.
Some LED lighting accessories that utilizes the same frequency as the remote control key fob can interfere with the signal, preventing it from reaching receiver modules. To prevent interference, the lighting must be turned off or to a different frequency.
If you've got a new battery in your key fob, and the issue persists, it is likely that the antenna on the key fob is damaged or not functioning properly. This is crucial since the antenna is responsible for sending signals from the key fob to the receiver module. The OBDII scanner is able to help diagnose this issue by revealing what's wrong with the system. The scanner will ask you for information about your vehicle, including the model, make and engine type as well as the VIN number.
Faulty Receiver Module
The key fob has a receiver module that sends signals for locking and unlocking. All electronic components that are on-board will stop working if this module develops a problem. If this is the case it is possible to reprogramme the module using an OBDII scanner or replacing the key fob itself may help.
This problem could be caused by a dead coin cell battery or water damage, or signal interference. You can reset the onboard computer by disconnecting the 12 volt batteries for about 15 minutes. This will remove any remaining electrical energy that could cause issues. Remove the cable first from the negative terminal, then from the positive terminal. After 15 minutes, connect the battery in reverse order first: positive, then negative second.
The internal chip in the key fob could be damaged by dirt or water. If your key quit working after being wet, clean the electronic component using isopropyl alcohol or an electronic cleaner prior to installing the battery. If it is not working after exposure to soapy or salty water, the chip is probably damaged and must be replaced.
Another possibility is a damaged antenna module fuse that transmits the lock / unlock signal to the vehicle. The fuse can be located in a variety of places, based on the type of vehicle. For example it could be beneath the rear seat, or in the trunk, or the side of the dashboard.