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fiat 500 key fob Panda Key Fob fiat 500 replacement key

fiat punto key programming Panda key fobs contain a transponder chip which sends an alert to your car to open the doors and start the engine. However, the fob may not function due to a variety of reasons.

A dead coin battery is the most frequent reason for malfunctioning keys. Other causes include water damage the receiver module is defective and signal interference.

Dead Coin Battery

Replace the battery if your Spare Key Fiat 500 fob has died. Choose a button battery with 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 should be cleaned prior to using it again. A paper towel soaked with isopropyl alcohol or electronic cleaner can help.

If the key fob isn't working despite not being exposed to water, it could be due a malfunction in the receiver module, or even in the internal electronic chip. Reprogramming the keyfob using an OBDII scan could assist in these situations.

Water Damage

If your key fob has taken an immersion in the pool or puddle or gone through the washing machine, you might have some water damage. It's generally possible to get it back in working order by taking out the batteries and cleaning the circuit board using ruby alcohol. It is best to let the board completely dry prior to installing batteries.

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

Faulty Receiver Module

The key fob has an electronic chip that communicates with the vehicle's system. If this chip becomes damaged, it will be unable to longer be able to send or receive signals to the vehicle. A key fob falling off can cause this, as can exposure to water. If the key fob you have purchased has stopped functioning due to exposure to water it is possible to fix it if you clean the chip with electronic cleaner or isopropyl ethanol.

If the key fob does not respond to cleaning, it's possible that the component has issues and needs to be replaced. A damaged receiver can cause the key to not work. This is typically caused by electromagnetic interference.

Faulty Electronic Chip

The electronic chip in your key fob is a vital component of the anti-theft system in your car. It transmits a message the immobiliser in your car to determine if the key is valid. The car won't start if the chip is damaged.

A faulty chip can also be caused by interference signals from objects such as weather conditions, objects or transmitters operating on the same frequency as your car. In this scenario an upgrade to the fob will be needed.

Contacts to the battery are not working properly.

The battery contacts of the fob's battery can be damaged by heavy usage. If they're bent or broken the fob won't send any signals to the receiver modules inside the car.

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

The key fob has an embedded chip that communicates to the immobilizer system of the vehicle in order to start it. This system utilizes cryptocoding systems in newer vehicles as well as the traditional red key system used in older models. If the chip is defective, it will need to be replaced.

A faulty 12 Volt battery

A faulty battery may cause the key fob not to function. When this occurs the car's computer will not be able to recognize that the remote is in the vehicle.

Before replacing the battery, test it using a an voltmeter for determining its capacity. A fully charged battery should display 12.6 volts. If the reading falls significantly it's time to change it.

To determine the capacity of a battery test the battery's capacity by placing an electrical load on it for a few minutes. This will take off approximately 1% of the charge on the surface. Then, you can measure the voltage. The longer a battery can keep its voltage steady greater is its capacity. Ideally, it should remain at 12 volts or less for several minutes.

The radio signal is not working properly. Radio Signal

This is the most frequent reason for the key fob not sending signals to a car. This issue can be fixed by replacing the battery. But, it is essential to choose a battery that has the same size and voltage as the original one.

Fobs can take a lot abuse, and they aren't indestructible. The battery buttons and the contacts are fragile, so they can get bent or damaged from rough use.

The signal could also be disrupted by other objects or transmitters who use the same frequency. For instance, a lighting control panel near your home may transmit interference on the same bandwidth that key fobs use. This could cause interference with the remote control in your car.

Incorrect OBDII Scan Tool

There are a variety of reasons why scanners don't perform. Some are more complex than others.

Professional scan tools allow a mechanic to observe the car's networks and run a range of self-tests. These tools can save time, but they're expensive and not accessible to the majority of DIYers.

If your OBD2 scan tool doesn't turn on, make sure you check the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they're all fine it could be that a fuse has been blown. This is the most frequent reason for failures of the scanner. The easiest fix is to replace the blown fuse.