Guide To Fiat 500 Keys: The Intermediate Guide In Fiat 500 Keys

lost fiat 500 car key Panda Key Fob replacement key for fiat ducato van

fiat 500 lost key Panda keyfobs are equipped with a transponder that sends an indication from the fob to the car to unlock doors or turn on the motor. The fob can stop functioning for a variety of reasons.

A dead coin battery is the most common cause of the malfunction of a key fob. Other causes include water damage as well as a defective module and interference signals.

Dead Coin Battery

Replace the battery if your key fob has gone out of service. Use a new button cell battery that has the same size, voltage and specifications as the original.

If the key fob was exposed to water (such as saltwater or rain at the beach) It must be cleaned prior to being used again. A paper towel soaked in alcohol or electronic cleaner can work wonders.

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 internal electronic chip. In these cases it is possible that reprogramming the key fob using an OBDII scanner may assist.

Water Damage

It is possible to get water damage to your key fob if it was submerged in a puddle, pool or washing machine. It's usually possible to get it back in working order by removing the batteries and cleaning the circuit board with rubbing alcohol. It's a good idea allow the fob to dry completely prior to installing a new battery.

If your key fob isn't working even after replacing the battery and reprogramming it, you may have a problem with the receiver module. You can find reprogramming instructions for most vehicles' remote fiat van key replacement fobs on YouTube or in the owner's manual. You can also try resetting the car's onboard computer with the OBDII scan tool.

Faulty Receiver Module

The fiat punto key fob replacement fob contains a chip which communicates with the vehicle's system. The chip will stop sending and receiving signals to the car when it is damaged. A key fob falling off can cause this, as could water exposure. If the key fob has stopped working after water exposure it may be possible to fix it by cleaning the chip using isopropyl alcohol or electronic cleaner.

If the key fob doesn't respond to cleaning, it is possible that the module has an issue and must be replaced. A damaged receiver module may also cause the remote control key to stop working. This usually happens due to electromagnetic interference.

Faulty Electronic Chip

The chip that is embedded in the key fob is a crucial element of the anti-theft device in your car. It sends out a signal the immobiliser unit inside your car to determine whether the key is genuine. Your car will not start if the chip is damaged.

A malfunctioning chip can be caused by interference from objects, bad weather or transmitters close to your vehicle. In this instance the replacement fob will be required.

Contacts to the battery are not working properly.

The battery contacts of a key fob can be damaged due to heavy use. If they are bent, or damaged, the fob will not transmit any signals to receiver modules in the vehicle.

Modern fobs come with rubber seals that keep out water. Submerging them in water, even if it's only an occasional drizzle or splash could damage the electronic chip.

The key fob has the chip that connects to the vehicle's immobilizer to allow it to allow it to start. The system uses the red keys of older vehicles as well as the cryptocoding system that is used in newer vehicles. This chip will have to be changed if it is defective.

A faulty 12 Volt battery

A damaged battery could cause the key fob not to function. When this happens the car's computer will not be able to recognize that the remote is inside the vehicle.

Test the battery with the voltmeter before replacing it to determine its capacity. A fully charged battery should read 12.6 volts. If the reading decreases significantly it is time to replace the battery.

To test a battery's capacity put an electrical load on it for a few minutes. This will eliminate one percent of the surface charges. Then, you can measure the voltage once more. The higher the capacity of the battery, the longer it can maintain its voltage. Ideal is to hold at or near 12 volts 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 vehicles. The issue can be fixed by replacing the battery. It is essential to purchase a battery with the same dimensions and voltage as the original.

Fobs aren't impervious to damage and can be damaged by a lot. Contacts on batteries and buttons can be damaged by rough handling.

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

Incorrect OBDII scan tool

There are a variety of reasons why scanner tools may not perform. Some are more complex than others.

Professional scan tools enable mechanics to monitor the car's networks and run various self-tests. These can be real time savers, but they can be expensive, and out of the budget of many DIYers.

If your OBD2 scan tool won't power on, check voltage at terminals 16 (scantool power) and 4 (chassis earth). If they're all fine it could be that a fuse has failed. This is one of the most common reasons for failure of the scanner. The easiest fix is to replace the blown fuse.