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fiat punto evo key Panda Key Fob Replacement

fiat 500 remote key Panda key fobs contain an transponder chip that transmits the signal to your vehicle to open the doors and start the engine. The fob could stop working for a variety of reasons.

The most common cause of fiat multipla key fob failure is the battery of the coin is dead. Other causes are water damage, a faulty receiver module and signal interference.

Dead Coin Battery

Replace the battery if your key fob has failed. Use a brand new button battery that has the same size, voltage and specifications as the old one.

If the key fob was exposed to water, like a splash of rain or salt water at the beach, it will have to be cleaned before it is able to be used again. A paper towel that has been soaked in isopropyl alcohol or electronic cleaner can do the trick.

If the key fob has not been exposed to water, but still does not work, there may be a problem with the receiver module or an internal electronic chip. Reprogramming the keyfob with an OBDII scan could help in these cases.

Water Damage

You could have water damage if your key fob was submerged in a puddle, pool or washing machine. It's usually possible to get it back in working order by getting rid of the batteries and cleaning the circuit board using ruby alcohol. It is best to let the board completely dry before putting in the battery.

If your key fob has stopped working even after replacing the battery and reconfiguring it, you may have a malfunctioning receiver module. You can find instructions for changing the programming of most remote keys on YouTube or consult the owner's manual. You can also reset the computer of your vehicle using the OBDII scanner tool.

Faulty Receiver Module

The key fob contains a chip that communicates with the car's system. This chip will stop sending and receiving signals to the fiat car keys when it is damaged. This can be caused by dropping the key fob or by water exposure. If your key fob has stopped functioning due to exposure to water, you may be able fix the issue if you clean the chip with electronic cleaner or isopropylethanol.

If the key fob continues to not respond following cleaning, then it is likely that the component is damaged and will require to be replaced. A damaged receiver module may also cause the remote control key to stop working. This is usually due to electromagnetic interference.

Faulty electronic chip

The electronic chip in your key fob is a vital role in the anti-theft security system of your car. It sends a signal the immobiliser unit inside your car to determine whether or not the key is genuine. Your car won't start when the chip is damaged.

A faulty chip may also be caused by interference from other objects, bad weather or transmitters close to your vehicle. In this case, a new fob will be needed.

Contacts to the battery are not working properly.

The battery contacts on the fob's key can be damaged due to heavy use. If they are broken or bent, the fob won't send any signals to the receiver modules inside the car.

Modern fobs are made with rubber seals that keep out water. Immersing them in water, even if it's just a light drizzle or splash could damage the electronic chip.

The key fob has a chip which communicates with the immobilizer system of the vehicle to begin it. The system is based on the old red keys for older vehicles or the cryptocoding system used in newer cars. If the chip is not working properly it must be replaced.

Problematic 12 Volt Battery

A malfunctioning battery could cause the remote to cease to function. The car's computer may not recognize the remote if this happens.

Before replacing the battery, test it by using a the voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly 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 away approximately 1% of the surface charge. After that, measure the voltage. The longer the battery is able to hold its voltage and the higher its capacity. Ideal is that it stays close to 12 volts over several minutes.

The radio signal is not working properly. Radio Signal

This is the most frequent reason for a key fob that stops sending signals to the car. This issue can be fixed by replacing the battery. But, it is essential to purchase a battery that has the same voltage and size as the original one.

Fobs take a lot of abuse, but they're not impervious to destruction. Battery contacts and buttons can be damaged by rough handling.

A signal can also be interrupted by other objects or transmitters that operate on the same frequency. For instance, a light-control panel near your home may transmit interference using the same frequency that key fobs use. This can interfere with the remote control of your car.

Faulty OBDII Scan Tool

There are many reasons why a scan tool could not work. Some are more complex than others.

Professional scan tools enable mechanics to look over the car's network, and run various self-tests. These are real time savers but they're also expensive, out of the budget of most DIYers.

If your OBD2 scanner doesn't work examine the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If they are all OK it could be that a fuse has blown. This is among the most frequent reasons for failure of the scanner. The simple fix is usually to replace the blown fuse.