fiat spare key 500 keys; find out here, Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder, which sends an electronic signal from the fob to the car to open doors or start the motor. However, the fob could not function due to a variety of reasons.

A dead coin battery is the most common reason for key fob malfunctions. Other reasons include water damage, an inoperative receiver module and signal interference.

Dead Coin Battery

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

If the key fob was exposed to water (such as saltwater or rain at the beach) It must be cleaned before being used again. A paper towel soaked with isopropyl alcohol or electronic cleaner can do the trick.

If the key fob hasn't been exposed to water but still does not work it could be due to an issue with the receiver module or an internal electronic chip. Reprogramming the keyfob through an OBDII scan can help in these cases.

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 is usually possible to get it back to working by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It's best to let the fob completely dry before putting in batteries.

If your key fob isn't working even after replacing the battery and changing the program, you could have a malfunctioning receiver module. There are reprogramming guidelines for most remote key fobs on YouTube or in the owner's guide. You can also reset your computer in your car with the OBDII scanner tool.

Faulty Receiver Module

The key fob has 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 can water exposure. If your key fob has stopped working due to exposure to water and you are unable to fix it if clean the chip using electronic cleaner or isopropyl ethanol.

If the key fob does not respond to cleaning, it is likely that the module is in issues and needs to be replaced. A damaged receiver can cause the key to cease to function. This is often caused by electromagnetic interference.

Faulty Electronic Chip

The chip that is embedded in your key fob is an important component of the anti-theft system in your vehicle. It sends a message to the immobiliser inside your car that tells it whether the key is legitimate. The car will not start in the event that the chip has been damaged.

A faulty chip may also be caused by interference from other objects, bad weather or transmitters near your vehicle. In this case an upgrade to the fob will be required.

Contacts to the battery are not working properly.

The battery contacts inside the key fob are delicate and may be damaged by repeated use. If they are bent or broken the fob will not transmit any signals to the receiver modules in the car.

Modern fobs come with rubber seals in order to keep out water. A splash of water or light rain is fine However, submerging them in saltwater can harm the electronic chip.

The key fob has the chip that connects to the vehicle's immobilizer system in order to start it. The system utilizes the old red keys for older vehicles as well as the cryptocoding system that is used in newer vehicles. If the chip is not working properly it must be replaced.

Faulty 12 Volt Battery

A malfunctioning battery could cause the key fob not to function. When this occurs, the car's computer system will not be able to recognize that the remote is in the vehicle.

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

Place an electrical load for a few moments on the battery to gauge its capacity. This will remove 1% of the surface charges. Then measure the voltage again. The longer the battery is able to hold its voltage and the higher its capacity. The ideal is to keep it close to 12 volts during several minutes.

Radio Signal Faulty Radio Signal

This is the most frequent reason for a key fob to stop sending signals to cars. The issue can be fixed by replacing the battery. It is crucial to buy a battery with the same voltage and dimensions as the original.

Fobs can take a lot abuse, Fiat 500 keys but they're not indestructible. The battery buttons and the contacts are fragile which means they could be bent or damaged by excessive use.

A signal may also be affected by other objects or transmitters which use the same frequency. A light-control system in your home, for instance, may interfere with key fobs using the same frequency. This could affect the remote control of your car.

Incorrect OBDII Scan Tool

There are a variety of reasons why a scanner tool may not work. Certain are more complicated than others.

Professional scan tools allow mechanics to observe the car's networks and perform a variety of self-tests. These are great time savers, however they can be expensive and are out of the budget of most DIYers.

If your OBD2 scan tool won't power on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they're all fine, a fuse may have been blown. This is among the most common reasons for failure of the scanner. The easiest fix is to replace the fuse which has blown.