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fiat 500 electric key Panda Key Fob fiat punto replacement key

fiat 500 electric key Panda key fobs contain transponder chips that send an alert to your car to unlock the doors or start the engine. However, the fob can stop working for several reasons.

A dead battery for the coin is the most common cause of malfunctioning keys. Other causes include water damage, malfunctioning receiver modules and signal interference.

Dead Coin Battery

If your key fob battery is dead, the first thing to do is replace it. Choose a new button battery that is the same size, voltage, and specification as the previous one.

If the key fob was exposed to water, like a splash of rain or salt water at the beach, it's going to need to be cleaned before it is able to be used again. A paper towel soaked in alcohol or electronic cleaner will work wonders.

If the key fob doesn't working despite not being exposed to water it could be due to a malfunction in the receiver module, or even in the internal electronic chip. In these instances, reprogramming the key fob using an OBDII scanner might assist.

Water Damage

If your key fob took a bath in the pool or puddle or walked down the washing machine, you could be suffering some water damage. It is usually possible to fix it by taking out the batteries and cleaning the circuit board with ruby alcohol. It's best to let the board completely dry before installing the battery.

There could be a problem with the module in the event that your key fob stops working after replacing the battery or replacing it with. There are instructions for changing the programming of most remote keys on YouTube or refer to the owner's manual. You can also try resetting the car's computer onboard using the OBDII scan tool.

Faulty Receiver Module

The key fob contains a chip that connects to the car's system. This chip will stop sending and receiving signals to the car when it is damaged. The key fob being dropped can cause this, as can exposure to water. If the fiat ducato key fob has stopped working after water exposure it is possible to repair it by cleaning the chip using isopropyl alcohol, or electronic cleaner.

If the key fob won't respond to cleaning, it is possible that the module has issues and needs to be replaced. A malfunctioning receiver could cause the key to cease to function. This is usually caused by electromagnetic interference.

Faulty Electronic Chip

The chip inside your key fob plays a vital role in the anti-theft security system of your vehicle. It sends a signal the immobiliser device in your car to determine whether or not the key is valid. If the chip is damaged or broken, the lost car keys fiat will not start.

A damaged chip could be caused by interference signals from objects such as weather conditions, objects or transmitters on the same frequency close to your vehicle. In this situation the replacement fob will be needed.

Contacts to the battery are not working properly.

The battery contacts in the key fob are delicate and may be damaged with hard usage. If they're bent or damaged, the fob will not transmit any signals to receiver modules in the vehicle.

Modern fobs come with rubber seals that block out water. A splash of water or a light rain should be fine however, submerging them in salt water could cause damage to the electronic chip.

The key fob is equipped 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 in older vehicles, or the cryptocoding system found in modern vehicles. If the chip is defective and needs to be replaced.

Problematic 12 Volt Battery

A defective battery can cause the key fob to work. The car's computer may not recognize the remote if this happens.

Test the battery with the voltmeter before replacing it to determine its capacity. A fully charged battery will display 12.6 volts. If the reading drops dramatically then it's time to replace it.

Put an electrical load for a short period of time on the battery to test its capacity. This will remove approximately 1 percent of the surface charge. After that, take the voltage again. The longer the battery is able to keep its voltage steady, the better its capacity. It should be close to 12 volts for several minutes.

Faulty Radio Signal

This is the most common reason for the key fob to stop sending signals to cars. The battery could be replaced to fix this issue. But, it is essential to purchase a battery that is the same voltage and size as the original.

Fobs are subject to a lot of abuse, and they aren't impervious to destruction. Contacts on batteries and buttons can be damaged by rough handling.

A signal may also be affected by other transmitters or objects that operate on the same frequency. For instance, a lighting control panel near your home may transmit interference on the same bandwidth that fiat key fob not working fobs use. This could affect the remote control in your car.

Faulty OBDII scan tool

There are many reasons scanners don't function. Some are more complex than others.

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

If your OBD2 scanner won't turn on Check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If they're all fine the fuse could have failed. This is the most common reason for a scan tool to fail. The easiest fix is to replace the blown fuse.