11 "Faux Pas" That Are Actually OK To Make With Your Fiat 500 Keys

11 "Faux Pas" That Are Actually OK To Make With Your Fiat 500 Keys

Fiat Panda Key Fob Replacement

Fiat Panda key fobs contain an transponder chip that transmits the signal to your vehicle to open the doors and start the engine. The fob could stop working due to a variety reasons.

The most common reason for key fob failure is a dead coin battery. Other causes include water damages, a faulty module, and interference signals.

Dead Coin Battery

If the battery in your key fob has died, the first step is to replace it. Use a new button cell battery that has the same size, voltage and specifications like the previous one.

If the key fob was exposed to water (such as saltwater or rain at the beach), it must be cleaned before being used again. The best method is to use the paper towel and soak it in isopropyl or electronic cleaner.

If the key fob has not been exposed to water but remains inoperable, there may be a problem with the receiver module or an internal electronic chip. Reprogramming the keyfob through an OBDII scan can help in these instances.

Water Damage

If your key fob has taken a bath in the puddle or pool or walked to the washing machine, it could have some water damage. You can usually get it back to working by taking the battery off and cleaning the circuit board with isopropyl alcohol. It is best to let the fob completely dry before putting in a battery.

If your key fob stopped working, even after replacing the battery and reprogramming it, you may have a defective receiver module. Reprogramming instructions are available for the majority of vehicles' remote key fobs on YouTube or in the owner's manual. You can also reset your computer of your car using the OBDII scanner tool.

Faulty Receiver Module

The key fob's chip is an electronic chip that communicates with the vehicle's system. If the chip is damaged, it will no longer transmit or receive signals to the vehicle. The key fob being dropped can cause this, as could water exposure. If the key fob you have purchased has stopped working due to water exposure, you may be able to fix it if you clean the chip using electronic cleaner or isopropyl ethanol.

If the key fob does not respond following cleaning, there is a good chance that the module is faulty and must be replaced. A defective receiver can cause the key to stop working. This is often caused by electromagnetic interference.

Faulty Electronic Chip

The chip that is embedded in the key fob is an essential element of the anti-theft device in your vehicle. It sends a message to the immobiliser inside your car to inform it if the key is valid. If the chip is damaged or broken, the car will not start.

A faulty chip can also be caused by interference signals from other objects or weather conditions that are bad, or transmitters operating on the same frequency as your car. In this scenario the replacement fob will be required.

Contacts to the battery are not working properly.

The battery contacts inside the key fob are delicate and can get damaged by repeated use. If they're damaged or bent, the fob will not be able to send any signals to the receiver modules in the car.

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

The key fob contains a chip which communicates with the immobilizer system of the vehicle to start it. This system utilizes cryptocoding systems in modern vehicles and the older red key system used in older ones. If the chip is not working properly, it will need to be replaced.

Faulty 12 Volt Battery

A faulty battery can cause the remote to stop working. When this happens the car's computer cannot recognize that the remote is within the vehicle.


Before replacing the battery, test it with a voltmeter to determine its capacity. A fully charged battery should display 12.6 volts. If the reading drops significantly it is time to replace the battery.

Set an electrical load for a few moments on the battery to gauge its capacity. This will take away about 1 percent of the charge on the surface. Then, you can measure the voltage. The better the battery's capacity is, the longer it will keep its voltage. Ideal is that it stays close to 12 volts for several minutes.

The radio signal is not working properly. Radio Signal

This is the most common reason for a key fob that stops sending signals to the car. The battery can be replaced to solve this issue. But, it is essential to choose a battery that is the same size and voltage as the original.

Fobs are subject to a lot of abuse, and they aren't indestructible. The battery contacts and buttons are delicate and can be bent or damaged by the force of.

Other transmitters or objects using the same frequency can also interfere with a signal. For instance, a light-control panel close to your home can send interference over the same frequency that key fobs utilize. This could affect the remote control of your car.

Afflicted OBDII Scan Tool

There are many reasons why scanners don't perform. Certain are more complicated than others.

Professional scan tools allow a mechanic to observe the car's networks and run a variety of self-tests. These tools can save you a lot of time, but they are costly and are out of reach for the majority of DIYers.

If your OBD2 scanner won't start, check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If all is fine, a fuse may have ruptured. This is the most common cause of scan tool failure.  spare fiat 500 key  is to replace the fuse that has been blown.