The Best Way To Explain Fiat 500 Keys To Your Mom

Fiat Panda Key Fob Replacement

fiat punto locked keys in car Panda key fobs contain a transponder chip that sends a signal to your car to open the doors or start the engine. The fob can stop functioning due to a variety of reasons.

The most common reason for key fob failure is a dead coin battery. Other causes are water damage as well as a defective module and interference signals.

Dead Coin Battery

If your key fob battery has gone out of service, the first step is to replace it. Choose a new button battery with 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 should be cleaned prior to being used again. A paper towel soaked in alcohol or electronic cleaner will work wonders.

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. In these instances it is possible to re-programme the key fob using an OBDII scanner may help.

Water Damage

There could be water damage if your spare key fiat 500 fob was submerged in a puddle, pool or washing machine. It's possible to get it working by taking out the batteries and cleaning the circuit board using rubbing alcohol. It is recommended to let the board completely dry before installing a battery.

If your key fob isn't working even after replacing the battery and reconfiguring it, you may have a faulty receiver module. You can find the instructions for changing the programming of most remote keys on YouTube or refer to your owner's manual. You can also reset your computer in your car with the OBDII scanner tool.

Faulty Receiver Module

The key fob contains a chip that communicates with the vehicle's system. The chip will stop sending and receiving signals to the car if damaged. This can be caused by dropping the key fob, or due to exposure to water. If the key fob has stopped working after exposure to water it is possible to fix the issue by cleaning the chip using isopropyl alcohol or an electronic cleaner.

If the key fob won't respond to cleaning, it's possible that the component has issues and needs to be replaced. A damaged receiver module may also cause the remote control key to stop functioning. This is usually due to electromagnetic interference.

Faulty Electronic Chip

The electronic chip that is in your key fob plays an important role in the anti-theft system in your car. It sends out a signal the immobiliser device in your vehicle to tell it whether the key is valid. If the chip is damaged or broken, your vehicle won't start.

A defective chip can be caused by interference signals from objects, bad weather conditions or transmitters on the same frequency as your car. In this case, a new fob will be needed.

Contacts to the battery are not working properly.

The battery contacts of the key fob are delicate and may be damaged when used for long periods of time. If they are bent, or damaged, the fob will not send any signals to the receiver modules in the vehicle.

Modern fobs are equipped with rubber seals that keep out water. In the event of submerging them in water, even if it's just an occasional drizzle or splash could damage the chip's electronic components.

The key fob houses an electronic chip that communicates with the vehicle's immobilizer system to begin it. It uses the old red keys for older vehicles or the cryptocoding system that is used in modern vehicles. This chip will need to be replaced if defective.

A faulty 12 Volt battery

A defective battery can cause the key fob not to function. When this occurs the car's computer won't recognize that the remote is within the vehicle.

Before replacing the battery, test it using a a voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly then it's time to replace the battery.

To test a battery's capacity test the battery's capacity by placing an electrical load on it for a few minutes. This will remove 1% of the surface charges. Then, test the voltage again. The longer a battery is able to keep its voltage steady more effectively, the greater its capacity. The ideal is to keep it at or near 12 volts for several minutes.

Problems with Radio Signal

This is the most frequent reason behind a key fob that ceases to send signals to the car. The battery is able to be replaced to resolve this problem. It is important to buy an identical battery voltage and dimensions as the original.

Fobs are subject to a lot of abuse, but they're also not impervious to destruction. The battery buttons and contacts are brittle which means they could be bent or damaged by excessive use.

A signal can also be disrupted by other transmitters or objects that use the same frequency. A light control panel in your home, for instance could interfere with key fobs using the same frequency. This can affect the remote control of your car.

Faulty OBDII scan tool

There are many reasons why scanner tools may not work. Some are more complicated than others.

Professional scan tools let mechanics to look over the car's network and run various self-tests. These can be real time savers, however they are also extremely expensive, out of the budget of many 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 they're all fine, a fuse may have blown. This is one of the most frequent causes of a scan tool failing. The easiest solution is to replace the fuse that is blowing up.