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Key Fob Replacement for the Seat Ibiza
The refreshed fifth-generation Ibiza is an option in the competitive supermini segment. It is up against the Renault Clio, Peugeot 208 and Ford Fiesta.
With a thumb nail, or a small screwdriver with a flat-headed head (A), prise upwards the key fob battery compartment cover (B). Replace the CR2025 battery, making sure it is inserted in the correct direction.
Dead Coin Battery
A dead battery on a coin is the most common reason of a key fob not locking or unlocking your car. Before it dies you will notice the decrease in range or no power. It is easy to replace with a new one (CR2025) from a local supermarket. Be aware that using the wrong or unsuitable batteries could damage your key fob. Be sure that the replacement battery is the same size and voltage and that it is the same specifications.
If your fob was exposed to clean water like rain or soapy tap water, it is possible that the electronic chip inside has been damaged by corrosion. You can clean the chip using isopropyl or electronic cleaners to see if it aids, but the chip is damaged.
The most simple solution is to get a new key fob. Major car dealers sell key fobs and they can be installed by a seasoned mechanic. They can also be purchased on the internet through sites like ebay. The best method is to work on a level surface with excellent lighting. This makes it easier to work on the tiny parts inside. This will also help you to avoid putting anything back into the wrong place. 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 ruined if you drop it in the water or accidentally wash it. However, there's still a chance. The problem starts when the circuit board within the fob comes into contact with water. It is a great conductor, and it shorts out the components. It also accelerates corrosion and rust.
This is a simple solution. Find something absorbent to place inside the fob. A tissue or paper towel would be a good choice. Then, use the cotton swab, dipped in isopropyl alcohol to wipe down the circuit board as well as other components to eliminate any battery acid residue or contamination. Let the circuit board dry for a few days in a dry and warm environment.
Replace the battery once the fob is dried out with a new one that is the same dimensions and the same polarity ('+' (pointing upwards). The fob isn't easy opening to access the battery, however when you have a flat head screwdriver, it should be easy to slide in. Once the fob has been put back together, it should work in a normal manner. If it fails you may need to re-program it or replace the module.
Radio Interference
When a key fob working correctly, it sends the radio frequency signal which is interpreted by the receiver module in your car. If the signal is disrupted, your key fob will not work. This can be caused by objects or weather conditions, or other transmitters operating on the same frequency in close proximity to your vehicle.
This could cause your key fob not to be able to trigger the vehicle's functions for example, the ignition switch or the security system. It is recommended to replace the battery in your key fob.
Some LED lighting aftermarket that utilizes the same frequencies as a key fob for remote control could interfere with the signal, preventing it from reaching receiver modules. The LED's lighting needs to be switched off or changed to a different frequency in order to be able to avoid interference.
If you have a brand new battery in your key fob, and the problem persists, it's possible that the antenna on the key fob is damaged or has stopped working. The antenna is responsible for transmitting signals between the key fob and the receiver module. Using an OBDII scanner can assist in diagnosing the problem by revealing what's wrong with the system. The scanner will ask to provide information about your vehicle, including the model, make engine type, VIN number.
Faulty Receiver Module
The key fob houses an encoder module that transmits the signals needed to lock and unlock. All electronic components on board will stop working if the receiver module develops a problem. Reprogramming the key fob by an OBDII scan, or replacing it can help.
There are a few possible causes such as the battery of the coin is dead, water damage, or signal interference. You can try resetting the on-board computer by disconnecting the battery 12 volts for 15 minutes. This will drain any residual electricity that could be causing problems. Take the cable off first of the negative terminal, then the positive terminal. After 15 minutes, reconnect the battery in reverse order first, positive second.
The presence of dirt or water could damage the internal chip of the key fob. If replacement seat car key has stopped working when it was wet, wash the electronic component with isopropyl alcohol or an electronics cleaner before installing the battery. If your key has stopped working after being exposed to salted or soapy water, it's likely that the chip is damaged and must be replaced.
A faulty antenna module fuse may also be the cause. It is the fuse that sends an indication to the vehicle to lock or unlock. Based on the model you have the fuse can be found in one of the many locations like the engine bay, the side of the dashboard, beneath the rear seat, or in the trunk.