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20 Trailblazers Leading The Way In Fiat 500 Keys
Fiat Panda Key Fob Replacement

Fiat Panda key fobs contain a transponder chip that sends an alert to your car to unlock the doors or start the engine. However, the fob could be inoperable due to various reasons.

A dead coin battery is the most common cause of the malfunction of a key fob. Other causes include water damage, a faulty receiver module and signal interference.

Dead Coin Battery

If your key fob's battery has failed, the initial step is to replace it. Make use of a new button battery with exactly the same size, voltage, and specification like the previous one.


If the key fob has been exposed to water, such as a splash of rain or salt water at the beach, it needs to be cleaned before it is able to be used again. The best method is to use an old towel soaked in 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 even in the internal electronic chip. Reprogramming the keyfob with an OBDII scan may aid in these situations.

Water Damage

You might have water damage if your key fob was submerged in a pool, puddle or washing machine. It is usually possible to fix it by getting rid of the batteries and cleaning the circuit board using rubbing alcohol. It is best to let the circuit board completely dry before putting in a battery.

You could have a damaged module when your key fob ceases working after replacing the battery or reprogramming. thekeylab.co.uk can find information on reprograming the majority of remote keys on YouTube or in your owner's manual. You can also reset the computer in your car with the OBDII scanner tool.

Faulty Receiver Module

The key fob's chip is a chip that communicates with the car's system. If the chip is damaged, it can no longer send and receive signals to the vehicle. This can be caused by dropping the key fob, or through exposure to water. If the key fob stopped working after exposure to water it is possible to fix the issue by cleaning the chip using isopropyl alcohol or an electronic cleaner.

However, if the key fob is still unable to not respond following cleaning, you can be sure that the receiver module is not functioning properly and will need to be replaced. A malfunctioning receiver module could also cause the remote control key to cease functioning. This usually happens due to electromagnetic interference.

Faulty Electronic Chip

The chip that is embedded in the key fob is an essential part of the anti-theft system in your vehicle. It sends out a signal the immobiliser device in your car to determine whether or not the key is in fact valid. If the chip is damaged or damaged, your car won't start.

A damaged chip could be caused by interference signals from other objects, bad weather conditions or transmitters on the same frequency near your car. In this scenario an upgrade to the fob will be required.

Contacts with the battery may be damaged.

The battery contacts of the fob's key can be damaged through heavy use. If they are bent, or damaged, the fob will not transmit any signals to receiver modules inside the vehicle.

Modern fobs have rubber seals to keep out water. In the event of submerging them in water, even if it is just small splash or drizzle can harm the chip's electronic circuit.

The key fob is equipped with a chip that communicates with the vehicle's immobilizer system to start it. It uses the old red keys for older vehicles as well as the cryptocoding system found in newer vehicles. If the chip is defective and needs to be replaced.

Poor 12 Volt Battery

A defective battery can cause the key fob to stop working. When this happens the car's computer will not recognize that the remote is within the vehicle.

Before you replace the battery, test it with an voltmeter to gauge its capacity. A fully charged battery should display 12.6 volts. If the reading falls significantly, it's time to replace it.

Place an electrical load for a short period of time on the battery to check its capacity. This will take away 1percent of the charges. After that, take the voltage again. The higher the capacity of the battery, the longer it can keep its voltage. Ideal is that it stays at or near 12 volts for several minutes.

Radio Signal Faulty Radio Signal

This is the main reason for a key fob that stops sending signals to the car. This issue can be fixed by replacing the battery. It is crucial to purchase a battery that has the same voltage and dimensions as the original.

Fobs aren't indestructible and are susceptible to damage. The battery buttons and contacts are brittle which means they could be bent or broken by the force of.

A signal can also be impacted by other transmitters or objects that operate on the same frequency. For instance, a light-control panel close to your home can send interference over the same frequency as key fobs use. This could interfere with the remote control of your car.

Faulty OBDII Scan Tool

There are many reasons scanners may not work. Certain are more complicated than others.

Professional scan tools enable mechanics to examine the car's systems and perform a variety of self-tests. These tools can save you a lot of time, but they are costly and not accessible to most DIYers.

If your OBD2 scanner won't turn on, check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If these are both present it's likely that a fuse has failed. This is one of the most common causes of scan tool failure. It is usually simple to fix the issue by replacing the fuse that was blown.

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