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Fiat Panda Key Fob Replacement
Fiat Panda keyfobs are equipped with a transponder, which sends a signal from the fob to the car to unlock doors or start the motor. However, the fob can be inoperable due to various reasons.
The most commonly cited reason for key fob failure is a dead coin battery. Other causes include water damage as well as a defective module and interference signals.
Dead Coin Battery
If your key fob's battery is dead, the first step is to replace it. Use a button cell battery with the same voltage, size and specifications as your previous one.
If the key fob was exposed to water, for example a splash of rain or salt water at the beach, it will have to be cleaned before it can be used again. The best solution is to use a paper towel that has been soaked in isopropyl, or electronic cleaner.
If the key fob doesn't working despite being not exposed to water, it could be due to a malfunction in the receiver module or an internal electronic chip. Reprogramming the keyfob through an OBDII scan can help in these instances.
Water Damage
If your key fob's battery has taken a bath in the puddle or pool, or taken a trip down the wash machine, you may have some water damage. It's generally possible to repair it by getting rid of the batteries and cleaning the circuit board with rubbing alcohol. It is best to let the fob completely dry prior to installing batteries.
If your key fob has stopped working even after replacing the battery and changing the program, you could have a problem with the receiver module. where to get a fiat key cut can find reprogramming instructions for most remote key fobs on YouTube or in the owner's manual. You can also reset your computer in your car with the OBDII scanner tool.
Faulty Receiver Module
The key fob contains a 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 you have purchased has stopped functioning due to exposure to water, you may be able to fix it by attempting to clean the chip using electronic cleaner or isopropyl ethanol.
If the key fob does not respond to cleaning, it is possible that the receiver module has a fault and needs to be replaced. A malfunctioning receiver module could also cause the remote control key to cease functioning. This usually happens due to electromagnetic interference.
Electronic chip that is malfunctioning
The electronic chip in your key fob is an essential element of the anti-theft device in your car. It sends a signal to the immobiliser unit inside your car to inform it whether or not the key is genuine. If the chip is damaged or broken, the car will not start.
A malfunctioning chip can be caused by interference from other objects, bad weather or transmitters near your vehicle. In this situation, a new fob will be required.
Contacts of the battery may be damaged.
The battery contacts of the key fob are fragile and are susceptible to damage with hard usage. If they are broken or bent, the fob will not be able to send any signals to the receiver modules inside the car.
Modern fobs are constructed with rubber seals to keep out water. Submerging them in water even if it is just a light drizzle or splash can harm the electronic chip.
The key fob comes with an electronic chip that communicates with the immobilizer system of the vehicle in order to start it. The system is based on the old red keys that were used in older vehicles as well as the cryptocoding system used in newer vehicles. If the chip is damaged, it will need to be replaced.
Faulty 12 Volt Battery
A damaged battery could cause the key fob not to function. When this occurs the car's computer will not be able to recognize that the remote is inside the vehicle.
Before you replace the battery, you should test it with a the voltmeter to determine its capacity. A fully charged battery should display 12.6 volts. If the reading drops significantly the time is now to replace it.
To test the battery's capacity, place an electrical load on it for a few minutes. This will eliminate 1percent of the surface charges. After that, take the voltage again. The better the battery's capacity, the longer it can keep its voltage. Ideally, it will remain at or near 12 volts for several minutes.
Faulty Radio Signal
This is the most frequent reason for the key fob not sending signals to the car. This problem can be solved by replacing the battery. It is crucial to buy a battery with the same dimensions and voltage as the original.
Fobs can take a lot abuse, and they aren't impervious to destruction. Contacts on batteries and buttons can be damaged by rough handling.
The signal could also be impacted by other transmitters or objects who use the same frequency. A light-control system in your home, for example could interfere with key fobs which use the same frequency. This could affect the remote control of your car.
Incorrect OBDII scan tool
There are a number of reasons why a scanner may not work. Certain are more complicated than others.
Professional scan tools enable mechanics to look over the car's network, and run various self-tests. These are real time savers, however they are also extremely expensive and are out of the budget of many DIYers.
If your OBD2 scanner doesn't work examine the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If both are in good condition the chances are that a fuse is blowing. This is the most frequent reason for failure of the scan tool. The easiest solution is to replace the fuse which has blown.