Key Fob Replacement for the Seat Ibiza
The facelifted fifth generation Ibiza is an attractive contender in the supermini segment. It is up against the Renault Clio, Peugeot 208 and Ford Fiesta.
With a thumb nail or small screwdriver with a flat head (A) to lift up the key fob compartment cover (B). Replace the CR2025 battery, making sure it is placed in the proper direction.
Dead Coin Battery
The most common reason for a key fob to not be able to lock or unlock your vehicle is a dead coin battery. It usually shows signs before it dies such as a decreasing range or no power at any time. It is easy to replace it with a new one (CR2025) from a local store. Be aware that incorrect or defective batteries could damage the key fob. Make sure that the new battery is the same size, specification and voltage as the old one.
If your device has been exposed to clean water, for example rainwater or soapy water from the tap It is likely that corrosion has damaged the chip's electronic circuit. You can clean the chip with isopropyl or electronic cleaners to determine if that helps, but it's likely that the chip is fried.
The simplest solution is to get a new key fob. Most major car dealers sell them and they can be installed by an experienced mechanic. They can also be bought online from places like ebay. The best way to work is to work on a level surface with good lighting. This will make it easier to work on small parts inside. This will also help you to avoid putting anything back in the wrong place. Always keep your key fob in a location that is safe and secure.
Water Damage
If your key fob gets submerged after dropping it into the pool or throwing it in the washing machine you might think it's a goner but there's a chance. The problem begins when the circuit board in the fob comes into contact with water - it is a great conductor, and it shorts out the components. It also accelerates the process of rust and corrosion.
Luckily, this is simple to fix. Simply find something absorbent and put it inside the fob - a paper towl or tissue works well. Then apply an alcohol-soaked cotton swab and a cotton swab isopropyl alcohol to wipe down the circuit board as well as other components to eliminate any residue of battery acid and contamination. Let the fob air dry in a dry, warm environment for a few weeks.
Replace the battery after the fob has dried with a fresh one with the same size and polarity ('+' (pointing upwards). It is a challenge to open up the fob to access the battery, but if you have a small screwdriver with a flat head handy it should slide in easily. Once the fob is assembled, it should work as normal. If it fails then you might need to re-program it or replace the module.
Radio Interference
When a keyfob is working properly, it transmits a radio frequency that is received by a receiver module inside your car. If the signal is not received, your key fob will not function. This can be caused by objects, weather conditions, or other transmitters that operate on the same frequency in close proximity to your car.
This can cause your key fob not to be able to trigger the vehicle's functions like the ignition switch, or the security system. It is recommended to replace your key fob's battery.
Some LED lighting aftermarket that uses the same frequencies as a key fob for remote control could interfere with the signal, preventing it from reaching receiver modules. To prevent interference, the LED lights should be turned off or to a different frequency.
If the issue persists after replacing the battery, the antenna of your key fob could be damaged or inoperable. The antenna is responsible for transmitting a signal between the key fob and the receiver module. An OBDII scanner can aid in identifying the issue by telling you what is wrong with the system. The scanner will ask you for details about your vehicle including the model, make and engine type as well as the VIN number.
Faulty Receiver Module
The key fob is equipped with a receiver module that sends signals for locking and unlocking. If the receiver module fails and the on-board electronics will stop working. If this happens Reprogramming using an OBDII scanner or replacing the key fob itself could assist.
This problem could be caused by a dead battery in the coin-cell or a water damage or signal interference. You can try resetting the computer on board by disconnecting the battery 12 volts for 15 minutes. This will draw out any remaining power that could cause issues. Take seat car key replacement off first of the negative terminal, then from the positive terminal. After 15 minutes, reconnect the battery in reverse order first, positive second.
The internal chip inside the key fob can also be damaged by water or dirt. If your key's function stopped after being wet, clean the electronic component with isopropyl Alcohol or an electronics cleaner before installing the battery. If it has stopped working after exposure to salty or soapy water the chip may be damaged and must be replaced.
A damaged antenna module fuse may also be the cause. It's the fuse that sends an alert to the vehicle to lock or unlock. 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 on the side of the dashboard.