Don't Make This Silly Mistake With Your Fiat 500 Keys Fiat Panda Key Fob Replacement

Fiat Panda key fobs contain a transponder chip which sends a signal to your car to unlock the doors or start the engine. However, the key fob may stop working for several reasons.

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

Dead Coin Battery

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

If the key fob was exposed to water (such as rain or saltwater at the beach) It must be cleaned before being used again. The trick is to use a paper towel that has been soaked in isopropyl or an electronic cleaner.

If the key fob has not been exposed to water but still does not work it could be a problem with the receiver module or an internal electronic chip. In these instances it is possible to re-programme the key fob with an OBDII scanner could aid.

Water Damage


If your key fob's battery has taken submerged in a pool or puddle or even a trip down the washing machine, you may have some water damage. It's usually possible to be able to get it back up and running by taking the battery off and cleaning the circuit board with isopropyl alcohol. It's best to let the board completely dry before putting in the battery.

If your key fob has stopped working, even after replacing the battery and reprogramming it, you may have a malfunctioning receiver module. You can find the instructions for reprogramming most vehicles' remote keys on YouTube or consult the 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 an electronic chip that communicates with the car's system. If this chip becomes damaged, it can no longer transmit or receive signals to the vehicle. The key fob being dropped can cause this, as could water exposure. If your key fob has stopped functioning due to exposure to water, you may be able to fix it by attempting to clean the chip using electronic cleaner or isopropyl alcohol.

If the key fob still does not respond following cleaning, it is likely that the module is faulty and must be replaced. A malfunctioning receiver could cause the key to not work. This usually happens due to electromagnetic interference.

A malfunctioning electronic chip

The electronic chip in the key fob is a vital component of the anti-theft system in your vehicle. It transmits a message to the immobiliser in your car to tell it that the key is valid. Your car will not start when the chip is damaged.

A faulty chip may also be caused by interference from other objects, bad weather or transmitters close to your vehicle. In this situation it is likely that a new fob would be needed.

Contacts of the battery may be damaged.

The battery contacts on a key fob can be damaged by heavy usage. If they're broken or bent, the fob will not send any signals to the receiver modules inside the car.

Modern fobs feature rubber seals that keep out water. A splash of water or light rain should be fine However, submerging them in saltwater may cause damage to the electronic chip.

The key fob is equipped with an electronic chip that communicates with the vehicle's immobilizer in order to start it. This system utilizes cryptocoding systems in modern vehicles, or the old red key system in older models. This chip will have to be changed if it is faulty.

Poor 12 Volt Battery

A faulty battery may cause the key fob to function. The car's system will not recognize the remote if this occurs.

Before you replace the battery, test it with the voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If fiat doblo key drops significantly then it's time to replace the battery.

Set an electrical load for a short time on the battery to check its capacity. This will eliminate one percent of the surface charges. Then, you can measure the voltage once more. The longer the battery is able to keep its voltage steady more effectively, the greater its capacity. It is ideal to maintain at or near 12 volts for several minutes.

The radio signal is not working properly. Radio Signal

This is the most frequent reason for keys not sending signals to the car. This problem can be solved by replacing the battery. However, it is important to purchase a battery that is the same voltage and size as the original.

Fobs are not indestructible and can take a lot. Contacts on batteries and buttons can be damaged by rough handling.

A signal may also be impacted by other transmitters or objects that operate on the same frequency. For instance, a light-control panel in your home could transmit interference on the same frequency that key fobs use. This could affect the remote control of your car.

Afflicted OBDII scan tool

There are many reasons why a scan tool might not work. Some are more complicated than others.

Professional scan tools allow a mechanic to examine the car's systems and perform a variety of self-tests. These tools can save you a lot of time, but they're expensive and are out of reach for most DIYers.

If your OBD2 scanner isn't turning on examine the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If they're both in good shape it's possible that a fuse has been blown. This is among the most frequent reasons for failure of the scanner. It is often easy to fix the issue by replacing the fuse that has blown.