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20 Resources To Make You More Efficient At Fiat 500 Keys
Fiat Panda Key Fob Replacement

Fiat Panda key fobs contain an transponder chip that transmits an alert to your car to unlock the doors or start the engine. The fob may stop working for a variety of reasons.

A dead battery for the coin is the most frequent reason for a key fob malfunction. Other causes are water damage, the receiver module is defective and signal interference.

Dead Coin Battery

Replace the battery in case your key fob has died. Make use of a button cell battery that has the same voltage, size and specifications as the previous one.

If the key fob was exposed to water (such as saltwater or rain at the beach) it must be cleaned before using again. A paper towel soaked with isopropyl alcohol or electronic cleaner can help.

If the key fob hasn't been exposed to water, but isn't working it could be because of a problem with the receiver module or an internal electronic chip. In these cases, reprogramming the key fob using an OBDII scanner may help.

fiat key cover

If your key fob took submerged in a puddle or pool, or taken a trip to the washing machine, it could have some water damage. It is usually possible to restore it's functionality by taking the battery off and cleaning the circuit board with isopropyl alcohol. It's a good idea to allow the fob to dry completely before putting in a new battery.

You could have a damaged module when your key fob ceases working after replacing the battery or changing the programming. There are reprogramming guidelines for most remote key fobs on YouTube or in your owner's guide. You could also try resetting the car's onboard computer with the OBDII scan tool.

Faulty Receiver Module

The key fob contains a chip that communicates with the vehicle's system. If the chip is damaged, it will no longer send and receive signals to the vehicle. This could be due to dropping the key fob or due to exposure to water. If your key fob has stopped functioning due to water exposure, you may be able to fix it by attempting to clean the chip using electronic cleaner or isopropyl alcohol.

However, if the key fob is still unable to not respond even after cleaning it there is a good chance that the module is faulty and will need to be replaced. A faulty receiver module can also cause the remote control key to cease functioning. This usually happens due to electromagnetic interference.

A defective electronic chip

The chip inside your key fob is a vital part in the anti-theft security system in your car. It sends a signal to the immobiliser in your car to determine that the key is valid. Your car won't start in the event that the chip is damaged.

A defective chip could be caused by interference from objects, bad weather or transmitters near your vehicle. In this case the replacement fob will be required.

Contacts of the battery may be damaged.

The battery contacts on the key fob are delicate and could be damaged by repeated use. If they are bent, or broken, the fob won't send any signals to the receiver modules inside the vehicle.

Modern fobs come with rubber seals that keep out water. Submerging them in water even if it's only a light drizzle or splash could harm the chip's electronic circuit.

The key fob houses the chip that connects to the vehicle's immobilizer system in order to begin it. The system relies on cryptocoding systems in vehicles that are more modern, or the old red key system used in older ones. If the chip is damaged and needs to be replaced.

Faulty 12 Volt Batterie

A faulty battery can cause the remote to stop working. When this occurs the car's computer will not be able to recognize that the remote is within the vehicle.

Before you replace the battery, test it using a an voltmeter to gauge its capacity. A fully charged battery should read 12.6 volts. If the reading falls dramatically, it is time to replace the battery.

To test the battery's capacity, place an electrical load on it for a few minutes. This will take off about 1% of the surface charge. Then measure the voltage again. The longer a battery is able to hold its voltage and the higher its capacity. The ideal is to keep it close to 12 volts for several minutes.

Faulty Radio Signal


This is the main reason for a keyfob that ceases to send signals to the car. The issue can be fixed by replacing the battery. But, it is essential to purchase a battery that has the same size and voltage as the original.

Fobs take a lot of punishment, and aren't impervious to destruction. The battery buttons and the contacts are fragile which means they could be bent or broken by the force of.

The signal could also be affected by other objects or transmitters that operate on the same frequency. A light-control system in your home, for instance, may interfere with key fobs using the same frequency. This can affect the remote control of your car.

Incorrect OBDII scan tool

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

Professional scan tools allow mechanics to monitor the car's network and conduct a variety self-tests. These can be real time savers, however they're also expensive, and beyond the reach of most DIYers.

If your OBD2 scan tool isn't turning on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition, a fuse may have failed. This is the most typical reason for failures of the scanner. It is often easy to fix the problem by replacing the fuse blowing up.