Key Fob Replacement for the Seat Ibiza
The facelifted fifth generation Ibiza is an interesting contender in the supermini segment. It is up against the Renault Clio, Peugeot 208 and Ford Fiesta.
Utilizing seat car key battery replacement or small screwdriver with a flat head (A) and pull upwards the key fob battery compartment cover (B). Replace the CR2025 battery, making sure it is inserted in the correct direction.
Dead Coin Battery
The most frequent reason for a key fob to not unlock or lock your vehicle is a dead coin battery. After it has died you'll see an increase in range, or no power. It is simple to replace it with a brand new (CR2025) one from your local store. Be aware that defective or unsuitable batteries can damage the key fob. Make sure that the battery you purchase is identical in size, specifications and voltage as the old one.
If your fob was exposed to clean water, like rain or soapy tap water, it is likely that the electronic chip inside has been damaged by corrosion. You might try cleaning your chip using isopropyl alcohol or an electronic cleaner to see if it helps but it is most likely that the chip has been damaged and fried.
A new key fob is the easiest solution. They can be purchased from a variety of major dealerships and can be installed by a qualified mechanic. They can also be bought on the internet from sites like ebay. The best method is to work on a flat surface that has excellent lighting. This makes it easier to work on the small parts inside. This also helps you to avoid placing anything back in the wrong location. Always work on the key fob in a secured and safe area.
Water Damage
If your key fob is damaged by dropping it in the pool or fumbling it in the wash you might think it's a goner but there's still hope. The problem begins when the circuit board inside the fob comes into contact with water - it creates an excellent conductor and shorts out components. It also accelerates corrosion and rust.
Fortunately, this is easy to fix. Find something absorbent to put inside the fob. A tissue or a paper towel will be ideal. Then you can use the cotton swab, dipped in isopropyl alcohol and wipe down the circuit board as well as other components to eliminate any battery acid residue or contamination. Let the fob dry out for several days in a dry and warm environment.
When the fob has dried out then replace the battery with an alternative of the same size and the same polarity ('+' directed upwards). The fob might be difficult opening to access the battery, but if you keep a flat-head screwdriver at hand, it should be easy to slide in. After the fob is reassembled it should function just as normal. If it doesn't, then you'll require reprogramming it or replace the receiver module.
Radio Interference
If a keyfob works properly, it transmits a radio signal that is received by a module inside your vehicle. If the signal is interrupted the key fob won't work. This could be due things, weather conditions or other transmitters operating within the same frequency band near your vehicle.
In this situation it is recommended to replace the battery in your key fob. It is best to replace the battery on your key fob.
A few LED lighting products that uses the same frequencies as a remote control key fob may interfere with the signal, stopping it from reaching receiver modules. The LED's light source must be turned off or switched to a different frequency to prevent interference.
If the issue is still present after installing a new battery, the antenna of your key fob may be damaged or is malfunctioning. The antenna is responsible to transmit a signal between the key fob and the receiver module. Utilizing an OBDII scanner will aid in identifying the issue by telling you what is wrong with the system. The scanner will request information about your specific vehicle including the model and make along with the engine type and VIN number.
Faulty Receiver Module
The key fob contains an electronic receiver that sends the signals for locking and unlock. If this module is damaged and the on-board electronic components will stop functioning. If this happens then reprogramming the module using an OBDII scanner or replacing the key fob may help.
There are a few possible causes for this issue which could be due to the battery of the coin is dead, water damage, or signal interference. You can reset your on-board computer if you disconnect the 12 volt batteries for about 15 minutes. This will remove any remaining electricity that could be causing issues. Start by removing the cable from the negative terminal first, then the positive terminal. After 15 minutes, connect the battery in reverse order: positive first, negative second.
Dirt or water can harm the internal chip of the key fob. If your key has stopped working when it was wet, clean the electronic component with isopropyl alcohol or an electronic cleaner prior to reinstalling the battery. If the key ceases to function 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 faulty antenna module fuse that transmits the signal to lock or unlock to the vehicle. Depending on your model the fuse can be found in one of several locations such as the engine bay, side of the dashboard, under the rear seat, or in the trunk.