15 Up-And-Coming Fiat 500 Keys Bloggers You Need To Be Keeping An Eye On

Fiat Panda Key Fob Replacement

Fiat Panda key fobs contain transponder chips that send a signal to your car to unlock the doors or start the engine. However, the key fob may be inoperable due to various reasons.

The most commonly cited reason for key fob failure is a dead coin battery. Other causes include water damage, a faulty receiver module and signal interference.

Dead Coin Battery

If the battery in your key fob is dead, the first step is to replace it. Use a new button cell battery with the same size, voltage and specifications as the old one.

If the key fob has been exposed to water, for example a splash of rain or salt water at the beach, it will need to be cleaned before it can be used again. A paper towel soaked in isopropyl alcohol or electronic cleaner can help.


If the key fob has not been exposed to water but isn't working it could be an issue with the receiver module or an internal electronic chip. Reprogramming the keyfob using an OBDII scan may help in these instances.

Water Damage

You could have water damage to your key fob if it was submerged in a pool, puddle or washing machine. It's possible to fix it by taking out the batteries and cleaning the circuit board using ruby alcohol. It's best to allow the fob to dry completely before putting in a brand new battery.

You could have a damaged module if your key fob stops working after replacing the battery or changing the programming. You can find the instructions for reprograming the majority of remote keys on YouTube or refer to 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 which communicates with the vehicle's system. If the chip is damaged, it will be unable to longer be able to send or receive signals to the vehicle. This can be caused by dropping the key fob, or through exposure to water. If the key fob is not working after water exposure it is possible to repair the issue by cleaning or cleaning the chip using isopropyl alcohol or electronic cleaner.

However, if the key fob continues to not respond after cleaning it you can be sure that the module is defective and needs to be replaced. A defective receiver module could also cause the remote control key to stop working. This is usually caused by electromagnetic interference.

A malfunctioning electronic chip

The electronic chip inside the key fob is a vital element of the anti-theft device in your vehicle. It sends a signal the immobiliser device in your car to determine whether or not the key is in fact valid. Your car won't start in the event that the chip is damaged.

A damaged chip could be caused by interference signals from objects such as weather conditions, objects or transmitters operating on the same frequency as your vehicle. In this case it is likely that a new fob would be required.

Contacts to the battery are not working properly.

The battery contacts inside a key fob are very delicate and can get damaged when used for long periods of time. If they are bent, or damaged, the fob will not transmit any signals to receiver modules in the vehicle.

Modern fobs are constructed with rubber seals to keep out water. Immersing them in water, even if just small splash or drizzle can harm the electronic chip.

The key fob contains chip that communicates with the immobilizer system of the vehicle, allowing it to start it. The system utilizes the old red keys in older vehicles or the cryptocoding system found in newer vehicles. If the chip is damaged it must be replaced.

fiat 500 keys with 12 Volt Batteries

A defective battery can cause the remote to stop working. The car's computer won't recognize the remote when this happens.

Before replacing the battery, test it with an voltmeter for determining its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly, it is time to replace the battery.

Put an electrical load for a few seconds on the battery to determine its capacity. This will take away 1percent of the surface charges. After that, measure the voltage. The longer the battery is able to keep its voltage steady and the higher its capacity. The ideal scenario is to keep it close to 12 volts for several minutes.

Radio Signal Faulty Radio Signal

This is the most frequent reason for a key fob that stops sending signals to the car. The battery could be replaced to fix this problem. It is however important to purchase a battery that is the same voltage and size as the original one.

Fobs are not indestructible and can be damaged by a lot. The battery contacts and buttons could be damaged through rough handling.

Other transmitters or objects using the same frequency could also interfere with the signal. A light-control panel in your home, for instance, may interfere with key fobs that use the same frequency. This could cause interference with the remote control in your car.

Afflicted OBDII Scan Tool

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

Professional scan tools enable mechanics to observe the car's network and run various self-tests. These are real time savers, however they're also expensive, and beyond the reach of most DIYers.

If your OBD2 scanner doesn't work make sure you check the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If they're both in good shape, it's likely that a fuse has failed. This is among the most frequent causes of a scan tool failing. It is often easy to fix the problem by replacing the fuse that was blown.

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Pub: 26 Apr 2024 01:46 UTC
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