Key Fob Replacement for the Seat Ibiza
The refreshed fifth-generation Ibiza is a contender in the crowded supermini segment. It is competing with the Renault Clio and Peugeot 208 as well as the Ford Fiesta.
Use a small flat-head screwdriver or a thumbnail (A) to break open the battery compartment cover on the key fob (B). Replace the CR2025 coin battery to ensure that it's in the correct direction and in the right polarity.
Dead Coin Battery
A dead battery on a coin is the most common reason of a key fob that isn't locking or unlocking your vehicle. It is likely to show warning signs prior to dying such as a decreased range or no power at any time. It is simple to replace it with a new (CR2025) one from a local retailer. Be aware that using the wrong or unsuitable batteries can damage your key fob. Make sure that the new battery is the same size, specification and voltage as the older one.
If your fob has been exposed to pure water, such as rainwater or soapy water from the tap it is possible that corrosion has damaged the electronic chip. You can clean the chip using isopropyl or electronic cleaners to see if this helps, but it's likely the chip is fried.
The most simple solution is to get an entirely new key fob. They are readily available from major car dealers and are fitted by a professional mechanic. www.g28carkeys.co.uk can also be bought online from places like ebay. It is best to work on a surface that has good lighting. It is easier to work with small parts. This will also allow you to avoid putting things back into the wrong place. Always work on the key fob in a secured and safe place.
Water Damage
If your fob's key gets damaged by dropping it in 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 makes an excellent conductor and shorts out components. It also accelerates the process of rust and corrosion.
This is an easy solution. Find something absorbent and place it inside the fob - paper towl or tissue work well. Use a cotton swab with isopropyl for cleaning the circuit board, and any other components. Allow the circuit board to air dry in a dry, warm environment for a few weeks.
Replace the battery when the fob has dried out with a new one that is the same dimensions and the same polarity ('+' (pointing upwards). It isn't easy to open up the fob to reach the battery, but if have a small screwdriver that is flat at hand, it will slide in easily. After the fob is put back together, it should work just as normal. If it doesn't work, you'll need to reprogramme it or replace the receiver module.
Radio Interference
When a keyfob operates correctly, it emits a radio frequency that is received by a module in your vehicle. If the signal is interrupted, your key fob will not function. This may be due to things, weather conditions or other transmitters operating on the same frequency near your car.
This could cause your key fob not to be able to trigger the car's systems such as the ignition switch or security system. In this case, it would be best to replace the battery inside your key fob.
Some LED lighting accessories that utilizes the same frequencies as a remote control key fob could interfere with the signal, preventing it from reaching receiver modules. To prevent interference, the LED light must be turned off, or to another frequency.
If the problem persists after replacing the battery, the antenna on your key fob could be damaged or is malfunctioning. This is crucial since the antenna is responsible for sending an indication from the key fob to the receiver module. An OBDII scan can assist in diagnosing the issue by revealing exactly what's wrong with your 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 is equipped with an encoder module that transmits the signals needed to lock and unlock. All electronic components on board will cease to function if this module is affected by a malfunction. Reprogramming the key fob with an OBDII scan or replacing it could help.
This issue 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 12 volt battery for 15 minutes. This will draw out any remaining electrical energy that could be causing problems. Take the cable off first of the negative terminal, then the positive terminal. After 15 minutes, reconnect your battery in reverse order. First, positive and then negative second.
Dirt or water can damage the internal chip of the key fob. If your key stopped working after getting wet, wash the electronic component using isopropyl alcohol or an electronic cleaner prior to installing the battery. If it has stopped working after exposure to salty or soapy water, the chip is probably damaged and should be replaced.
Another possibility is an inoperable antenna module fuse that transmits the signal to lock or unlock to the vehicle. Depending on the model the fuse can be found in a variety of places like the engine bay, the side of the dashboard, beneath the rear seat, or in the trunk.