Fiat Panda Key Fob Replacement Fiat Panda keyfobs are equipped with a transponder, which sends signals from the fob to the car in order to unlock doors or turn on the motor The fob can stop functioning due to a variety reasons The most common cause of key fob malfunction is the battery of the coin is dead Other causes include water damages, a faulty module, and interference signals Dead Coin Battery Replace the battery if your key fob has failed Make use of a new button battery that is identical in size, voltage, and specification as the previous one If the key fob has been exposed to water, like a splash of rain or salt water at the beach, it needs to be cleaned before it is able to be used again A paper towel soaked in isopropyl alcohol or electronic cleaner will work wonders If the key fob isn't working even though it is not exposed to water, it could be due a malfunction in the receiver module or in the internal electronic chip Reprogramming the keyfob using an OBDII scan could aid in these situations Water Damage It is possible to get water damage if your key fob was submerged in a pool, puddle or washing machine It is usually possible to be able to get it back up and running by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol It's a good idea let the fob dry completely before putting in a new battery If your key fob has stopped working even after replacing the battery and reconfiguring it, you may have a malfunctioning receiver module There are instructions for changing the programming of most remote keys on YouTube, or consult the owner's manual You can also reset your car's computer using the OBDII scanner tool Faulty Receiver Module The key fob has a chip that communicates with the vehicle's system This chip will stop sending and receiving signals to the car if damaged This can be caused by dropping the key fob or by exposure to water If the key fob you have purchased has stopped working due to water exposure it is possible to fix it by attempting to clean the chip using electronic cleaner or isopropyl alcohol However, if the key fob continues to not respond following cleaning, then it is likely that the receiver module is not functioning properly and will need to be replaced A defective receiver can cause the key to not work This is usually due to electromagnetic interference Electronic chip that is malfunctioning The electronic chip inside your key fob is an essential element of the anti-theft device in your vehicle It sends a message to the immobiliser in your car to determine whether the key is legitimate If the chip is damaged or broken, the car will not start A faulty chip may also be caused by interference from objects, bad weather or transmitters near your vehicle In this situation the replacement fob will be required Contacts of the battery may be damaged The battery contacts inside a key fob are very delicate and could be damaged by repeated use If they are bent, or broken, the fob won't transmit any signals to receiver modules inside the vehicle Modern fobs come with rubber seals to keep out water A splash of water or light rain is fine but submerging them into saltwater can damage the chip's electronic components The key fob is equipped with chip that communicates with the immobilizer system of the vehicle to begin it The system uses the red keys of older vehicles or the cryptocoding system found in newer cars If the chip is not working properly and needs to be replaced A faulty 12 Volt battery A defective battery can cause the key fob to work The car's computer will not recognize the remote if this happens Before you replace the battery, test it using a the voltmeter to determine its capacity A fully charged battery should display 126 volts If the reading drops dramatically the time is now to replace it To test the battery's power put an electrical load on it for a few minutes This will take off about 1 percent of the surface charge Then, you can measure the voltage once more The greater the battery's capacity and the longer it can keep its voltage Ideal is to hold at or near 12 volts for several minutes Faulty Radio Signal This is the main reason for a keyfob that stops sending signals to the car The battery could be replaced to fix this issue It is crucial to buy an identical battery dimensions and voltage as the original The buttons are not impervious to destruction and can take a lot The battery buttons and contacts are delicate and are susceptible to being bent or damaged by the force of The signal could also be disrupted by other objects or transmitters that operate on the same frequency For instance, a light control panel near your home may send interference over the same frequency as key fobs utilize This could affect your car's remote control Incorrect OBDII Scan Tool There are many reasons why a scan tool could not function Certain are more complicated than others Professional scan tools let mechanics to look over the car's network, and run various self-tests These tools can save a lot of time, but are expensive and not accessible to most DIYers If your OBD2 scanner won't start examine the voltage at terminal 16 scan tool power and terminal 4 chassis ground If https//wwwthekeylabcouk/fiat-car-keys/ in good shape the chances are that a fuse has failed This is among the most frequent reasons for failure of the scanner The most straightforward fix is to replace the blown fuse