Fiat Panda Key Fob Replacement Fiat Panda key fobs contain an transponder chip that transmits an alert to your car to open the doors and start the engine However, the fob may stop working due to a variety of causes A dead coin battery is the most common cause of key fob malfunctions Other causes include water damage or a malfunctioning module and interference signals Dead Coin Battery Replace the battery if your key fob has died Make use of a new button battery with identical in size, voltage and specification as the original If the key fob was exposed to water such as rain or saltwater at the beach, it must be cleaned before using again A paper towel that has been soaked in isopropyl alcohol or electronic cleaner will do the trick If the key fob isn't working despite being not exposed to water it could be due to a glitch in the receiver module or internal electronic chip Reprogramming the keyfob with an OBDII scan can help in these instances Water Damage If your key fob has gotten immersed in a puddle or pool or gone to the washing machine, it could have some water damage It is usually possible to get it working again by removing the battery and scrubbing the circuit board with isopropyl alcohol It's best to let the circuit board completely dry before installing the battery If your key fob isn't working, even after replacing the battery and programming it again, you might have a malfunctioning receiver module You can find the instructions for the reprogramming of most remote keys on YouTube or in the owner's manual You could also try resetting the car's onboard computer using the OBDII scan tool Faulty Receiver Module The key fob has an electronic chip that communicates with the vehicle's system This chip will stop sending and receiving signals to the car if damaged This could be due to dropping the key fob or by exposure to water If the key fob has stopped working after exposure to water it is possible to fix the issue by cleaning the chip using isopropyl alcohol, or electronic cleaner If the key fob still does not respond even after cleaning it you can be sure that the component is damaged and needs to be replaced A damaged receiver can cause the key to cease to function This usually happens due to electromagnetic interference Faulty electronic chip The electronic chip inside your key fob is a crucial part of the anti-theft system in your vehicle It sends a signal to the immobiliser in your car to inform it whether the key is genuine If https//anime-shareru/user/trowelwash4/ is damaged or broken, the car will not start A damaged chip could be caused by interference signals from objects like bad weather conditions or transmitters operating on the same frequency near your vehicle In this situation an upgrade to the fob will be required Contacts for the battery that are defective The battery contacts on the fob's key can be damaged by heavy usage If they are damaged or bent, the key fob will not be able to send any signals to the receiver modules in the car Modern fobs come with rubber seals in order to keep out water A splash of water or a light rain is fine however, submerging them in salt water could damage the electronic chip The key fob comes with chip that communicates with the immobilizer system of the vehicle, allowing it to start it It uses the old red keys in older vehicles or the crypto coding system in modern vehicles This chip will need to be replaced if faulty Faulty 12 Volt Battery A faulty battery can cause the key fob to cease working If this happens, the car's computer system will not be able to recognize that the remote is inside the vehicle Test the battery with a voltmeter before replacing it to determine its capacity A fully charged battery should read 126 volts If the reading falls significantly it is time to replace the battery To test the battery's capacity to determine its capacity, put an electric load on it for a few minutes This will remove about 1 percent of the surface charge Then, you can measure the voltage again The longer the battery is able to hold its voltage more effectively, the greater its capacity Ideal is to hold close to 12 volts over several minutes The radio signal is not working properly Radio Signal This is the main reason behind a key fob that stops sending signals to the car The battery is able to be replaced to resolve this issue It is important to buy batteries that have the same voltage and dimensions as the original Fobs aren't indestructible and are susceptible to damage The battery buttons and contacts are delicate which means they could be bent or broken with excessive use Other transmitters or objects using the same frequency could also disrupt the signal For instance, a light control panel close to your home can send interference over the same bandwidth that key fobs use This could interfere with the remote control of your car Afflicted OBDII scan tool There are many reasons why scanners don't function Some are more complicated than others Professional scan tools permit mechanics to look over the car's networks and run a range of self-tests These tools can save time, but are costly and not accessible to most DIYers If your OBD2 scan tool fails to turn on, make sure you check the voltage at terminals 16 scantool power and 4 chassis earth If they're all fine, a fuse may have been blown This is one of the most common causes of a scan tool failing It is typically easy to fix the issue by replacing the fuse that has blown