fiat 500 key fob Panda Key Fob Replacement

fiat 500 key fob replacement Panda keyfobs are equipped with a transponder, which sends a signal from the fob to the car that allows it to unlock doors or start the motor. However, the fob can stop working due to a variety of causes.

A dead battery for the coin is the most frequent reason for malfunctioning keys. Other causes are water damage or a damaged module and interference signals.

Dead Coin Battery

If the battery in your key fob has gone out of service, the first thing to do is replace it. Choose a button battery that has the same voltage, size and specifications as your previous one.

If the key fob was exposed to water (such as saltwater or rain at the beach), it must be cleaned before using again. The best method is to use an old towel soaked in isopropyl, or electronic cleaner.

If the key fob isn't working despite not being exposed water it could be due to a problem in the receiver module, or even in the internal electronic chip. In these situations you can reprogramme the key fob using an OBDII scanner may help.

Water Damage

If your key fob's battery has taken immersed in a puddle or pool or walked down the wash machine, you could be suffering some water damage. You can usually be able to get it back up and running by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It is recommended to let the circuit board completely dry before installing a battery.

It could be that you have a defective module when your key fob ceases working after replacing the battery or reprogramming. You can find the instructions for the reprogramming of most remote keys on YouTube, or consult the owner's manual. You can also try resetting the car's onboard computer with the OBDII scan tool.

Faulty Receiver Module

The key fob contains an electronic chip that communicates with the vehicle's system. The chip will stop sending and receiving signals to the car if damaged. A key fob falling off can cause this, as well as water exposure. If the key fob stopped working after water exposure it could be possible to fix it by cleaning the chip using isopropyl alcohol, or electronic cleaner.

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

A defective electronic chip

The chip inside your key fob is a vital part in the anti-theft security system of your vehicle. It sends a signal to the immobiliser unit of your vehicle to tell it whether the key is legitimate. Your car won't start when the chip is damaged.

A defective chip could be caused by interference caused by objects, bad weather or transmitters close to your vehicle. In this scenario, a new fob will be required.

Faulty Battery Contacts

The battery contacts inside the key fob are fragile and are susceptible to damage with hard usage. If they're bent, or broken, the fob won't send any signals to receiver modules in the vehicle.

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

The key fob houses the chip that connects to the vehicle's immobilizer to allow it to start it. The system relies on cryptocoding systems in the latest vehicles as well as the traditional red key system in older ones. This chip needs to be changed if it is damaged.

A faulty 12 Volt battery

A damaged battery could cause the key fob not to function. The car's computer won't recognize the remote if this happens.

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 the time is now to replace it.

Put an electrical load for a short period of time on the battery to check its capacity. This will take away approximately 1 percent of the charge on the surface. Then, you can measure the voltage. The longer the battery can keep its voltage steady more effectively, the greater its capacity. The ideal scenario is to keep it close to 12 volts several minutes.

Faulty Radio Signal

This is the most typical reason for keys not sending signals to a car. The issue can be fixed by replacing the battery. It is however important to purchase a battery that is the same voltage and size as the original one.

Fobs are subject to a lot of abuse, but they're not indestructible. Battery contacts and buttons can be damaged by rough handling.

Other transmitters or objects using the same frequency may also interfere with the signal. For instance, a lighting control panel that is near your home could send interference on the same bandwidth that key fobs use. This could affect the remote control in your car.

Faulty OBDII scan tool

There are many reasons why a scan tool may not work. Some are more complex than others.

Professional scan tools enable mechanics to look over the car's networks and run a variety of self-tests. These tools can help save time, but are expensive and are out of reach for most DIYers.

If your OBD2 scanner doesn't work Check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If all is fine it could be that a fuse has been blown. This is one of the most frequent reasons for failure of the scanner. It is often easy to fix the problem by replacing the blown fuse.