Key Fob Replacement for the Seat Ibiza
The refreshed fifth-generation Ibiza is a contender in the crowded supermini segment. It competes with Renault Clio and Peugeot 208 as well as the Ford Fiesta.
Utilizing a thumb nail or small screwdriver that has a flat head (A), prise upwards the key fob compartment cover (B). Replace the coin battery CR2025 by ensuring it is in the correct direction and polarity.
Dead Coin Battery
The most frequent reason for a key fob to not lock or unlock your car is a dead coin battery. After it has died you will see a decrease in range or no power. It is easy to replace it with a new (CR2025) one at your local grocery store. Be aware that incorrect or unsuitable batteries can damage the key fob. Be sure that the battery you replace has the same size and voltage and has 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 try cleaning the chip using isopropyl alcohol or an electronic cleaner to check if it works but it is more likely that the chip has been fried.
A new key fob is the easiest solution. They are available from most major car dealers and are fitted by a skilled mechanic. They can also be bought on ebay. The best method is to work on a flat surface that has adequate lighting. This will make it easier to work on small parts inside. You will also be able to avoid putting things in the wrong spot. Always work on 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 wash you might think that it's gone but there's still hope. The problem begins when the circuit board inside the fob is in contact with water - it is a great conductor and cuts off components. It also accelerates the process of corrosion and rust.
Fortunately, this is not difficult to fix. Find something absorbent to place inside the fob. A tissue or paper towel will be ideal. Use a cotton swab soaked in isopropyl to cleanse the circuit board, and any other components. Let the fob air dry in a warm, dry environment for a few weeks.
When the fob has dried out and the battery is replaced with an alternative of the same size and polarity ('+' directed upwards). The fob isn't easy opening to access the battery, however if you keep a flat-head screwdriver at hand it will be simple to slide in. After the fob is reassembled it should function as normal. If it does not work it may be necessary to re-program it or replace the module.
Radio Interference
If a keyfob works properly, it sends out a radio signal that is received by a receiver module in your vehicle. If the signal is interrupted in some way the key fob will not function properly. This could be due to objects like weather conditions or other transmitters that operate on the same frequency in close proximity to your car.
In G28 is recommended to replace the battery on your key fob. In this instance it is best to replace the battery on your key fob.
Some LED lighting accessories that utilizes the same frequencies as a remote control key fob can interfere with the signal, preventing it from reaching receiver modules. To prevent interference, the LED lights must be turned off, or switched to a different frequency.
If the issue is still present after installing a new battery, the antenna on the key fob might be damaged or is malfunctioning. This is important since the antenna is responsible for sending a signal from the key fob to 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 for details about your car, including the model, make, engine type and VIN number.
Faulty Receiver Module
The key fob has a receiver module that transmits signals for locking and unlocking. If the receiver module develops a fault and the on-board electronics will cease to function. If this is the case it is possible to reprogramme the module using an OBDII scanner or replacing the key fob could aid.
There are several possibilities for the cause of this problem, including a dead coin battery water damage or signal interference. Try resetting the on-board computer by disconnecting the 12 volt battery for 15 minutes. This will flush out any residual electrical energy that could be causing issues. Remove the cable first from 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 harm the internal chip of the key fob. If your key's function stopped when it was wet, wash the electronic component with isopropyl ethanol or an electronic cleaner prior to reinstalling the battery. If it stopped working after exposure to salty or soapy water the chip may be fried and will need to be replaced.
Another possibility is a defective antenna module fuse, which transmits the lock and unlock signal to the vehicle. The fuse may be located in a variety of locations, based on the model. For instance it could be under the rear seat, or in the trunk, or on the side of the dashboard.