Fiat 500 Keys Explained In Fewer Than 140 Characters

From Guild of Archivists

fiat 500 replacement key near me Panda Key Fob Replacement

fiat keys replacement Panda key fobs contain a transponder chip that sends the signal to your vehicle to open the doors or start the engine. The fob might stop working due to a variety of reasons.

A dead coin battery is the most frequent reason for the malfunction of a key fob. Other causes include water damage, malfunctioning receiver modules and signal interference.

Dead Coin Battery

If the battery in your key fob has died, the first thing to do is replace it. Choose a new button battery that has identical in size, voltage, and specification like the previous one.

If the key fob has been exposed to water, like a splash of rain or salt water at the beach, it will need to be cleaned before it can be used again. A paper towel soaked in isopropyl alcohol or electronic cleaner can work wonders.

If the key fob hasn't been exposed to water but still does not work it could be because of a problem with the receiver module or an internal electronic chip. In these situations, reprogramming the key fob using an OBDII scanner can assist.

Water Damage

You could have water damage if your key fob was submerged in a pool, puddle or washing machine. It's usually possible to restore it's functionality by taking off the battery and then scrubbing the circuit board with isopropyl alcohol. It's a good idea allow the fob to dry completely before putting in a new battery.

You could have a damaged module in the event that your key fob stops working after replacing the battery or updating. You can find information on reprogramming most vehicles' remote keys on YouTube or refer to your owner's manual. You could also try resetting the car's onboard computer by using the OBDII scan tool.

Faulty Receiver Module

The key fob contains the chip that communicates the vehicle's system. If the chip is damaged, it can no 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 stops working after exposure to water it may be possible to repair it by cleaning the chip with isopropyl ethanol or electronic cleaner.

If the key fob does not respond to cleaning, it is possible that the receiver module has an issue and must be replaced. A malfunctioning receiver could cause the key to not work. This is usually due to electromagnetic interference.

Faulty Electronic Chip

The electronic chip in your key fob plays a crucial role in the anti-theft security system of your vehicle. It transmits a signal to the immobiliser unit inside your vehicle to tell it whether or not the key is valid. Your car will not start when the chip is damaged.

A damaged chip could be caused by interference signals from other objects such as weather conditions, objects or transmitters on the same frequency near your vehicle. In this situation the replacement fob will be needed.

Contacts for the battery that are damaged

The battery contacts inside the key fob are delicate and could be damaged 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 designed with rubber seals in order to keep out water. A splash of water or light rain should be fine however, submerging them in salt water could harm the chip's electronic components.

The key fob contains an electronic chip that communicates with the vehicle's immobilizer system to start it. It uses the old red keys that were used in older vehicles as well as the crypto coding system in modern vehicles. This chip will need to be replaced if it's faulty.

Faulty 12 Volt Battery

A defective battery can cause the key fob to stop working. The car's computer won't recognize the remote when this happens.

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, it's time to replace it.

Install an electrical charge for a short time on the battery to determine its capacity. This will eliminate about 1 percent of the charge on the surface. Then, you can measure the voltage. The longer a battery can hold its voltage more effectively, the greater its capacity. Ideally, it should remain close to 12 volts for several minutes.

Faulty Radio Signal

This is the main cause of a key fob that ceases to send signals to the car. The issue can be fixed by replacing the battery. It is important to buy a battery that has the same dimensions and voltage as the original.

Fobs endure a lot of abuse, but they're not impervious to destruction. Contacts on batteries and buttons can be damaged through rough handling.

The signal could also be interrupted by other objects or transmitters which use the same frequency. For instance, a light control panel that is near your home could send interference on the same bandwidth that key fobs utilize. This can interfere with the remote control of your car.

Problems with OBDII Scan Tool

There are a number of reasons why a scan tool could not function. Certain are more complicated than others.

Professional scan tools permit mechanics to monitor the car's network and perform a variety of self-tests. These are real time-savers, but they can also be very expensive and are out of the reach 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 both in good shape the chances are that a fuse has failed. This is one of the most frequent causes of scan tool failure. It is typically simple to fix the issue by replacing the fuse that was blown.