Key Fob Replacement for the Seat Ibiza
This refreshed fifth-generation Ibiza is an attractive contender in the supermini segment. It is up against the Renault Clio, Peugeot 208 and Ford Fiesta.
Use a small screwdriver or a thumbnail (A) to pry up the battery compartment cover of the key fob (B). Replace the CR2025 batteries, making sure it is installed in the proper direction.
Dead Coin Battery
The most common reason for a key fob to not lock or unlock your car is due to a dead coin battery. If it fails you will notice an increase in range, or no power. It is easy to replace it with a fresh one (CR2025) from the local supermarket. Be aware that using the wrong or non-compatible batteries can cause damage to your key fob. Make sure the battery you replace has the same size and voltage, and that it is the same specification.
If your fob was exposed to clean water such as rain or soapy tap water it is possible that the chip inside has been damaged due to corrosion. You could try cleaning the chip with alcohol or an electronic cleaner to check if it works but it is most likely that the chip is damaged.
The most simple option is to buy a new key fob. They are readily available from major car dealers and can be fitted by a skilled mechanic. They can also be purchased on the internet from sites like ebay. seat key is recommended to work on a surface with good lighting. This makes it easier to work on the small parts inside. This will also help you to avoid putting things back in the wrong spot. Always work on your key fob in a place that is safe and secure.
Water Damage
It's possible to think that your fob is damaged if you drop it into the pool or accidentally wash it. But there's still hope. The issue begins when the circuit board within the fob is in contact with water. It makes an excellent conductor and cuts off components. It also speeds up the process of rust and corrosion.
This is an easy fix. Find something absorbent to put inside the fob. A tissue or a paper towel will be ideal. Then, use a cotton swab that has been soaked in isopropyl alcohol to wipe down the circuit board as well as other components to eliminate any battery acid residue and contamination. Allow the board to dry for several days in a dry and warm environment.
Replace the battery once the fob is dried out by replacing it with a new one that is the same size and polarity ('+' (pointing upwards). The fob might be difficult opening to access the battery, however if you keep a flat-head screwdriver, it should be easy to insert. Once the fob has been repaired, it should function as normal. If it doesn't work, you'll need to reprogram it or replace the receiver module.
Radio Interference
If a key-fob is functioning properly, it sends an audio frequency signal that is picked up by the receiver module inside your car. However, if the signal is damaged in some way your key fob will not perform as it should. This could be caused by factors like weather conditions, objects, or other transmitters operating on the same frequency near your car.
This could cause your key fob not to be able to trigger the vehicle's systems for example, the ignition switch, or the security system. In this situation it is recommended to replace the battery in your key fob.
Some LED lighting from the aftermarket that uses the same frequency as the remote key fob may interfere with the signal and block it from reaching the receiver modules. To avoid interference, the LED light must be turned off, or switched to a different frequency.
If the issue continues to persist after replacing the battery, the antenna of your key fob may be damaged or malfunctioning. The antenna is responsible to transmit a signal between the key fob and 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 for details about your vehicle like the make and model along with the engine type and VIN number.
Faulty Receiver Module
The key fob has an electronic receiver that sends the signals needed to lock and unlock. If the receiver module is damaged that causes it to fail, the entire onboard electronic components will stop functioning. If this happens, reprogramming with an OBDII scanner or replacing the key fob itself may aid.
This problem can be caused by a dead coin cell battery or water damage, or signal interference. You can try resetting the on-board computer by disconnecting the battery 12 volts for 15 minutes. This will eliminate any remaining power that may be causing problems. Begin by removing your cable from the negative terminal first, followed by the positive terminal. After 15 minutes, you can reconnect your battery in reverse order. First, positive, then negative second.
Dirt or water can cause damage to the internal chip of the key fob. If your key has stopped working when it was wet, wipe the electronic component with isopropyl Alcohol or an electronic cleaner prior to installing the battery. If your key has stopped working after exposure to soapy or salted water, it is likely that the chip has been fried and needs to be replaced.
Another possibility is a defective antenna module fuse that sends the signal to lock or unlock to the vehicle. The fuse can be found in various places, based on the type of vehicle. For instance it could be under the rear seat, or in the trunk, or the side of the dashboard.