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Fiat Panda Key Fob Replacement

Fiat Panda key fobs contain a transponder chip which sends an alert to your car to open the doors or start the engine. However, the fob could be inoperable due to various reasons.

A dead coin battery is the most frequent cause of malfunctioning keys. Other causes are water damage as well as a defective module and interference signals.

Dead Coin Battery

If the battery in your key fob has failed, the initial step is to replace it. Choose a new button battery that is exactly the same size, voltage, and specification as the original.

If the key fob was exposed to water (such as saltwater or rain at the beach), it must be cleaned before using again. The best solution is to use the paper towel and soak it in isopropyl or electronic cleaner.

If the key fob doesn't working despite not being exposed water it could be due to a problem in the receiver module or in the internal electronic chip. Reprogramming the keyfob using an OBDII scan can help in these instances.

Water Damage

If your key fob has gotten a bath in the puddle or pool, or taken a trip through the washing machine, you could be suffering some water damage. It's usually possible to be able to get it back up and running by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It's a good idea allow the fob to dry completely before installing a new battery.

If your key fob has stopped working even after replacing the battery and reprogramming it, you may have a defective receiver module. There are reprogramming guidelines for most vehicles' remote key fobs on YouTube or in the owner's manual. You can also reset the car's computer using the OBDII scanner tool.

Faulty Receiver Module

The key fob's chip is a chip which communicates with the vehicle's system. If the chip is damaged, it cannot longer be able to send or receive signals to the vehicle. Dropping the key fob could result in this, as can water exposure. If the key fob you have purchased has stopped functioning due to water exposure it is possible to fix it if you clean the chip using electronic cleaner or isopropyl alcohol.

If the key fob does not respond to cleaning, it's possible that the module has a fault and needs to be replaced. A faulty receiver can also cause the key to not work. This is usually due to electromagnetic interference.

A defective electronic chip

The electronic chip inside your key fob is a vital role in the anti-theft security system of your vehicle. fiat 500 spare key sends a signal to the immobiliser in your car to tell it whether the key is genuine. The car won't start if the chip is damaged.

A faulty chip can also be caused by interference signals from other objects like bad weather conditions or transmitters operating on the same frequency close to your vehicle. In this instance you'll require an entirely new key fob.

Faulty battery contacts

The battery contacts inside the key fob are fragile and are susceptible to damage when used for long periods of time. If they are broken or bent, the fob will not send any signals to the receiver modules in the car.

Modern fobs are equipped with rubber seals to keep out water. A splash of water or a light rain is acceptable However, submerging them in saltwater can cause damage to the electronic chip.

The key fob houses a chip that communicates with the vehicle's immobilizer system in order to start it. It uses the red keys of older vehicles as well as the cryptocoding system used in the latest vehicles. This chip will have to be changed if it is malfunctioning.

Faulty 12 Volt Batterie

A damaged battery can cause the remote to cease to function. The car's computer may not recognize the remote when this occurs.

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

To determine the capacity of a battery, place an electrical load on it for a couple of minutes. This will remove 1percent of the surface charges. After that, take the voltage once more. The longer a battery can keep its voltage steady, the better its capacity. The ideal is to keep it close to 12 volts during several minutes.

The radio signal is not working properly. Radio Signal

This is the most common cause of a key fob that stops sending signals to the car. The battery could be replaced to fix this issue. It is crucial to purchase a battery with the same dimensions and voltage as the original.

The buttons are not impervious to destruction and can withstand a lot. The battery buttons and the contacts are fragile, so they can get bent or damaged from the force of.

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

Incorrect OBDII Scan Tool

There are a number of reasons why a scan tool could not function. Some are more complicated than others.





Professional scan tools let a mechanic observe the car's network and perform various self-tests. These tools can save a lot of time, but they're expensive and are out of reach for the majority of DIYers.

If your OBD2 scanner won't start make sure you check the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If all is fine, a fuse may have ruptured. This is the most common reason for failure of the scan tool. It is generally easy to fix the problem by replacing the fuse that was blown.