Do Not Make This Blunder You're Using Your Fiat 500 Keys

Fiat 500 spare key cut Panda Key Fob Replacement

fiat 500 key not working Panda keyfobs are equipped with a transponder that transmits a signal from the fob to the car to unlock doors or turn on the motor. The fob could stop working due to a variety reasons.

The most common reason for key fob failure is a dead coin battery. Other causes include water damage, malfunctioning receiver modules, and signal interference.

Dead Coin Battery

Replace the battery if the key fob has died. Use a button cell with the same voltage, size, and specifications as the old one.

If the key fob was exposed to water, such as a splash of rain or salt water on the beach, it needs how to program fiat 500 key fob be cleaned before it is able to be used again. A paper towel soaked in isopropyl alcohol or electronic cleaner can do the trick.

If the key fob isn't working even though it is not exposed to water it could be due a malfunction in the receiver module, or even in the internal electronic chip. In these cases it is possible to re-programme the key fob using an OBDII scanner might help.

Water Damage

If your key fob's battery has taken immersed in a puddle or pool or gone down the wash machine, you might have some water damage. It's usually possible to get it back to working by removing the battery and scrubbing the circuit board with isopropyl alcohol. It's best to let the fob dry completely before putting in a brand new battery.

It could be that you have a defective module in the event that your remote stops working after replacing the battery or reprogramming. You can find reprogramming instructions for all vehicles' remote key fobs on YouTube or in the owner's guide. You can also try resetting the car's computer onboard using the OBDII scan tool.

Faulty Receiver Module

The key fob's chip is a chip that communicates with the car's system. If the chip is damaged, it cannot longer be able to send or receive signals to the vehicle. This could be due to dropping the key fob or through exposure to water. If the key fob is not working after water exposure it may be possible to fix the issue by cleaning the chip with isopropyl alcohol or an electronic cleaner.

If the key fob continues to not respond even after cleaning it then it is likely that the module is faulty and needs to be replaced. A defective receiver can cause the key to stop working. This is usually due to electromagnetic interference.

Faulty electronic chip

The electronic chip in the key fob is a vital part of the anti-theft system in your vehicle. It sends a signal the immobiliser unit inside your car to determine whether or not the fiat 500 key fob is in fact valid. The car won't start when the chip is damaged.

A faulty chip may also be caused by interference caused by objects, bad weather or transmitters close to your vehicle. In this scenario, you will need an entirely new key fob.

Contacts for the battery that are damaged

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

Modern fobs come with rubber seals that keep out water. Submerging them in water even if it's just a light drizzle or splash can harm the electronic chip.

The key fob comes with chip that communicates with the immobilizer system of the vehicle in order to start it. The system uses the old red keys for older vehicles or the cryptocoding system used in newer vehicles. If this chip is faulty it must be replaced.

A faulty 12 Volt battery

A faulty battery may cause the program fiat 500 key fob fob to work. The car's system will not recognize the remote when this happens.

Before you replace the battery, test it by using a a voltmeter to determine its capacity. A fully charged battery should display 12.6 volts. If the reading drops dramatically the time is now to replace it.

Install an electrical charge for a few moments on the battery to gauge its capacity. This will remove one percent of the surface charges. Then measure the voltage again. The longer the battery is able to hold its voltage and the higher its capacity. Ideally, it should remain at 12 volts or less for several minutes.

Faulty Radio Signal

This is the most common cause of a key fob that stops sending signals to the car. This issue can be fixed by replacing the battery. It is crucial to purchase an identical battery voltage and dimensions as the original.

Fobs are subject to a lot of punishment, and aren't impervious to destruction. The battery contacts and buttons are delicate which means they could be bent or broken with the force of.

A signal may also be impacted by other transmitters or objects who use the same frequency. For instance, a light-control panel near your home may transmit interference using the same frequency as key fobs utilize. This can interfere with the remote control in your car.

Afflicted OBDII Scan Tool

There are many reasons why scanners may not work. Certain are more complicated than others.

Professional scan tools let a mechanic observe the car's networks and run various self-tests. These tools can help save time, but are costly and out of reach for the majority of DIYers.

If your OBD2 scan tool isn't turning on, make sure you check the voltage at terminals 16 (scantool power) and 4 (chassis earth). If these are both present it's likely that a fuse is blowing. This is the most common reason for a scan tool to fail. The easiest solution is to replace the fuse that has been blown.