11 "Faux Pas" That Are Actually Okay To Create With Your Fiat 500 Keys Fiat Panda Key Fob Replacement

Fiat 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 could be inoperable due to various reasons.

The most frequent cause of key fob malfunction is a dead coin battery. Other causes include water damages as well as a defective module and interference signals.

Dead Coin Battery

Replace the battery in case your key fob has failed. Use a button cell with the same voltage, size and specifications as the previous one.

If the key fob has been exposed to water, like a splash of rain or salt water on the beach, it's going to need to be cleaned before it is able to be used again. The best way to do this is using an old towel soaked in isopropyl or an electronic cleaner.

If the key fob isn't working despite being not exposed to water, it could be due a malfunction in the receiver module or internal electronic chip. In fiat 500 key replacement , reprogramming the key fob with an OBDII scanner may assist.

Water Damage

There could be water damage to your key fob if it was submerged in a pool, puddle or washing machine. It's generally possible to fix it by getting rid of the batteries and cleaning the circuit board using ruby alcohol. It's a good idea to allow the fob to dry completely before putting in a new battery.

If your key fob stopped working, even after replacing the battery and programming it again, you might have a problem with the receiver module. Reprogramming instructions are available for the majority of vehicles' remote key fobs on YouTube or in the owner's manual. You can also reset the computer of your vehicle using the OBDII scanner tool.

Faulty Receiver Module

The key fob has a chip that communicates with the car's system. If this chip becomes damaged, it cannot longer send and receive signals to the vehicle. Dropping the key fob could cause this, as well as water exposure. If the key fob you have purchased has stopped working due to water exposure and you are unable to fix it if clean the chip using electronic cleaner or isopropyl ethanol.

If the key fob won't respond to cleaning, it's likely that the module is in issues and needs to be replaced. A malfunctioning receiver could cause the key to stop working. This is usually caused by electromagnetic interference.

Faulty Electronic Chip

The chip inside your key fob is a vital role in the anti-theft system in your car. It sends a signal to the immobiliser device in your car to determine whether the key is genuine. The car will not start when the chip is damaged.

A malfunctioning chip could be caused by interference signals from other objects, bad weather conditions or transmitters operating on the same frequency as your vehicle. In this instance you'll require an entirely new key fob.

Contacts of the battery may be damaged.


The battery contacts of a key fob are very delicate and can get damaged through repeated use. If they are damaged or bent, the fob will not be able to send any signals to the receiver modules in the car.

Modern fobs are equipped with rubber seals to keep out water. Immersing them in water, even if it is just the slightest splash or drizzle could harm the chip's electronic components.

The key fob contains chips that communicate with the vehicle's immobilizer system in order to activate it. The system is based on the red keys of older vehicles or the cryptocoding system found in newer vehicles. If the chip is not working properly, it will need to be replaced.

A faulty 12 Volt battery

A damaged battery can cause the remote to cease to function. When this occurs, the car's computer system will not be able to recognize that the remote is within the vehicle.

Before you replace the battery, test it with the voltmeter to determine its capacity. A fully charged battery will display 12.6 volts. If the reading drops significantly then it's time to replace it.

To test the battery's power, place an electrical load on it for a couple of minutes. This will remove about 1% of the surface charge. After that, measure the voltage. The longer a battery can keep its voltage steady more effectively, the greater its capacity. Ideally, it will remain at 12 volts or less for several minutes.

The radio signal is not working properly. Radio Signal

This is the most common reason for the key fob to stop sending signals to a car. This issue can be fixed by replacing the battery. It is however important to buy a new battery that is the same voltage and size as the original.

Fobs are not indestructible and can withstand a lot. Contacts and buttons on batteries can be damaged through rough handling.

Other transmitters or objects using the same frequency can disrupt the signal. A light-control panel in your home, for instance, may interfere with key fobs using the same bandwidth. This could affect the remote control of your car.

Incorrect OBDII Scan Tool

There are many reasons why a scanner tool may not perform. Certain are more complicated than others.

Professional scan tools enable mechanics to monitor the car's network and run a variety of self-tests. These are great time savers, however they are also extremely expensive and are out of the budget of most DIYers.

If your OBD2 scanner doesn't work 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 typical reason for failures of the scanner. The easiest fix is to replace the blown fuse.