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15 Up-And-Coming Fiat 500 Keys Bloggers You Need To Check Out
Fiat Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder which transmits an electronic signal from the fob to the car to unlock doors or turn on the motor. However, the key fob may stop working for several reasons.

The most common cause of key fob malfunction is the battery of the coin is dead. Other causes are water damage or a malfunctioning module and interference signals.

Dead Coin Battery

Replace the battery if the key fob has gone out of service. Choose a new button battery that has exactly the same size, voltage and specifications as the previous one.

If the key fob was exposed to water (such as saltwater or rain at the beach) It must be cleaned prior to using it again. The best way to do this is using a paper towel soaked with isopropyl, or electronic cleaner.

If the key fob is not working despite being not exposed to water, it could be due a malfunction in the receiver module or an internal electronic chip. In these instances you can reprogramme the key fob using an OBDII scanner can aid.

Water Damage

You might have water damage to your key fob if it was submerged in a pool, puddle or washing machine. It's usually possible to be able to get it back up and running by removing the battery and scrubbing the circuit board with isopropyl alcohol. It is best to let the board completely dry before putting in the battery.

There could be a problem with the module if your key fob stops working after replacing the battery or changing the programming. You can find instructions for reprograming the majority of remote keys on YouTube or consult the owner's manual. You can also try resetting the car's onboard computer using the OBDII scan tool.

Faulty Receiver Module

The key fob's chip is a chip that communicates with the car's system. This 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 is not working after water exposure it is possible to fix the issue by cleaning the chip with isopropyl alcohol or an electronic cleaner.

However, if the key fob is still unable to not respond even after cleaning it then it is likely that the module is faulty and will need to be replaced. A malfunctioning receiver module could also cause the remote control key to stop working. This is typically caused by electromagnetic interference.

Faulty Electronic Chip

The electronic chip inside your key fob is a vital component of the anti-theft systems in your vehicle. It transmits a message the immobiliser inside your car to tell it if the key is valid. If the chip is damaged or broken, the car won't start.

A faulty chip can also be caused by interference signals from other objects like bad weather conditions or transmitters operating on the same frequency in close proximity to your car. In this case you'll need an entirely new key fob.


Contacts for the battery that are damaged

The battery contacts of a key fob can be damaged by excessive usage. If they're bent, or damaged, the fob will not send any signals to the receiver modules in the vehicle.

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

The key fob houses chips that communicate with the vehicle's immobilizer system to start it. The system is based on the red keys of older vehicles, or the crypto coding system in newer cars. This chip needs to be replaced if malfunctioning.

fiat key fob replacement may cause the key fob not to work. The car's system will not recognize the remote if this happens.

Test the battery using an voltmeter prior to replacing it to determine its capacity. A fully charged battery should display 12.6 volts. If the reading decreases significantly then it's time to replace it.

Install an electrical charge for a few seconds on the battery to gauge its capacity. This will eliminate about 1% of the charge on the surface. Then take another measurement of the voltage. The higher the capacity of the battery and the longer it can keep its voltage. Ideally, it should remain at or near 12 volts for several minutes.

The radio signal is not working properly. Radio Signal

This is the most common reason for a keyfob that ceases to send signals to the car. The battery is able to be replaced to resolve this issue. It is however important to choose a battery that has the same size and voltage as the original.

Fobs are not indestructible and can be damaged by a lot. The battery buttons and contacts are brittle, so they can get bent or broken by excessive use.

The signal could also be affected by other objects or transmitters which use the same frequency. For instance, a light control panel near your home may transmit interference on the same frequency as key fobs utilize. This could interfere with the remote control of your car.

Faulty OBDII Scan Tool

There are a number of reasons why a scanner could not work. Some 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, but they're also expensive, out of the range of most DIYers.

If your OBD2 scanner isn't turning on, 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 ruptured. This is the most frequent cause of scan tool failure. The simple fix is usually to replace the fuse which has blown.