The Ultimate Glossary Of Terms About Fiat 500 Keys Fiat Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder that transmits an electronic signal from the fob to the car that allows it to unlock doors or start the motor. The fob could stop working due to a variety of reasons.

The most common reason for key fob failure is an inoperable coin battery. Other causes are water damage, a faulty receiver module, and signal interference.


Dead Coin Battery

Replace the battery if your key fob is dead. Choose a button battery with the same voltage, size, and specifications as the old one.

If the key fob has been exposed to water, such as a splash of rain or salt water on the beach, it's going to need to be cleaned before it is able to be used again. A paper towel soaked with isopropyl alcohol or electronic cleaner can work wonders.

If the key fob has not been exposed to water but still does not work it could be due to a problem with the receiver module or an internal electronic chip. Reprogramming the keyfob through an OBDII scan may help in these instances.

Water Damage

If your key fob has taken a bath in the puddle or pool or gone to the washing machine, it could have some water damage. It's generally possible to repair it by getting rid of the batteries and cleaning the circuit board using rubbing alcohol. It's a good idea allow the fob to dry completely before putting in a new battery.

If fiat 500x key fob has stopped working even after replacing the battery and reconfiguring it, you may have a faulty receiver module. Reprogramming instructions are available for most remote key fobs on YouTube or in your owner's guide. You can also try resetting the car's computer onboard using the OBDII scan tool.

Faulty Receiver Module

The key fob has a chip that communicates with the vehicle's system. If this chip becomes damaged, it can no longer transmit and receive signals to the vehicle. A key fob falling off can cause this, as well as exposure to water. If your key fob isn't working due to exposure to water it is possible to fix it if clean the chip with electronic cleaner or isopropylethanol.

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

Faulty Electronic Chip

The electronic chip in the key fob is a vital element of the anti-theft device in your vehicle. It transmits a message to the immobiliser inside your car to tell it whether the key is legitimate. If the chip is damaged or broken, the car will not start.

A faulty chip may also be caused by interference from other objects, weather conditions or transmitters located near your vehicle. In this instance it is likely that a new fob would be needed.

Contacts to the battery are not working properly.

The battery contacts on a key fob can be damaged through heavy use. If they're bent or broken, the fob won't send any signals to receiver modules in the vehicle.

Modern fobs are constructed with rubber seals to keep out water. Submerging them in water, even if it's only a light drizzle or splash can harm the electronic chip.

The key fob comes with an embedded chip that communicates to the immobilizer system of the vehicle in order to start it. The system utilizes the old red keys in older vehicles or the cryptocoding system found in newer cars. The chip must be replaced if it's faulty.

Poor 12 Volt Battery

A malfunctioning battery could cause the key fob to stop working. When this happens, the car's computer system won't recognize that the remote is in the vehicle.

Before replacing the battery, test it using a an voltmeter for determining its capacity. A fully charged battery should display 12.6 volts. If the reading decreases significantly, it's time to replace it.

To test the battery's capacity, place an electrical load on it for a couple of minutes. This will take off approximately 1 percent of the surface charge. Then, test the voltage once more. The better the battery's capacity, the longer it can maintain its voltage. Ideal is that it stays close to 12 volts during several minutes.

Faulty Radio Signal

This is the most typical reason for a key fob to stop sending signals to the car. This issue can be resolved by replacing the battery. However, it is crucial to buy a new battery with the same voltage and size as the original.

Fobs take a lot of abuse, but they're not impervious to destruction. The battery buttons and contacts are delicate, so they can get bent or damaged by rough usage.

A signal may also be interrupted by other objects or transmitters who use the same frequency. A light-control system in your home, for example, may interfere with key fobs which use the same frequency. This can interfere with the remote control in your car.

Faulty OBDII Scan Tool

There are many reasons why a scan tool could not work. Some are more complex than others.

Professional scan tools enable mechanics to observe the car's networks and perform a variety of self-tests. These are real time savers, but they're also expensive, and beyond the reach of most DIYers.

If your OBD2 scan tool won't power on, check voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they are all OK, a fuse may have been blown. This is one of the most common causes of failures in the scan tool. It is generally easy to fix the problem by replacing the fuse that was blown.