Avoid Making This Fatal Mistake On Your Fiat 500 Keys

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fiat 124 spider key fob not working Panda key fobs contain a transponder chip which sends signals to your car to open the doors and start the engine. The fob may stop working for a variety of reasons.

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

Dead Coin Battery

Replace the battery if the key fob has gone out of service. Use a brand new button battery that has the same size, voltage and specification as the old one.

If the key fob was exposed to water (such as saltwater or rain at the beach) it must be cleaned before using again. A paper towel soaked in alcohol or electronic cleaner can do the trick.

If the key fob has not been exposed to water, but still does not work it could be because of an issue with the receiver module or an internal electronic chip. In these cases it is possible that reprogramming the key fob with an OBDII scanner may assist.

Water Damage

It is possible to get water damage if your fiat 500x key fob programming fob was submerged in a pool, puddle or washing machine. It is usually possible to get it working by taking the batteries off and cleaning the circuit board with ruby alcohol. It's best to let the fob dry completely prior to installing a new battery.

You may have a faulty module in the event that your remote stops working after replacing the battery or changing the programming. There are instructions for reprogramming most vehicles' remote keys on YouTube or consult your owner's manual. You could also try resetting the car's onboard computer with the OBDII scan tool.

Faulty Receiver Module

The key fob contains a chip that communicates with the vehicle's system. If the chip is damaged, it cannot longer transmit or receive signals to the vehicle. Dropping the key fob can result in this, as can exposure to water. If the key fob you have purchased has stopped working due to exposure to water, you may be able to fix it if you clean the chip using electronic cleaner or isopropylethanol.

If the key fob does not respond following cleaning, you can be sure that the receiver module is not functioning properly and needs to be replaced. A faulty receiver can also cause the key to stop working. This is typically caused by electromagnetic interference.

Faulty Electronic Chip

The chip that is embedded in the key fob is a vital component of the anti-theft system in your car. It sends a message to the immobiliser inside your car to determine whether the key is genuine. If the chip is damaged or damaged, your car will not start.

A defective chip could be caused by interference from objects, bad weather or transmitters near your vehicle. In this situation, you will need an entirely new key fob.

Contacts for the battery that are defective

The battery contacts on a key fob are very delicate and can get damaged when used for long periods of time. If they are damaged or bent, the fob will not send any signals to the receiver modules inside the car.

Modern fobs are designed with rubber seals to keep out water. A splash of water or light rain is acceptable but submerging them into saltwater can harm the chip's electronic components.

The key fob is equipped with chip that communicates with the immobilizer system of the vehicle in order to start it. This system utilizes cryptocoding systems in newer vehicles and the older red key system for older ones. This chip needs to be changed if it is malfunctioning.

Problematic 12 Volt Battery

A damaged battery can cause the remote to cease working. The car's computer will not recognize the remote when this happens.

Test the battery with the help of a voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading falls dramatically then it's time to replace the battery.

Set an electrical load for a few seconds on the battery to test its capacity. This will remove 1% of the surface charges. Then, you can measure the voltage again. The longer a battery is able to hold its voltage and the higher its capacity. It should be at 12 volts or less for several minutes.

Radio Signal Faulty Radio Signal

This is the most common reason for the key fob not sending signals to cars. The battery can be replaced to solve this problem. However, it is crucial to select a replacement battery with the same size and voltage as the original one.

Fobs take a lot of abuse, but they're also not indestructible. Contacts on batteries and buttons can be damaged by rough handling.

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

Afflicted OBDII Scan Tool

There are a variety of reasons why scanner tools may not perform. Certain are more complicated than others.

Professional scan tools enable mechanics to look over the car's network and run various self-tests. These tools can save a lot of time, but are expensive and not accessible to 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 these are both present, it's likely that a fuse has failed. This is the most common reason for failures of the scanner. It is usually easy to fix the problem by replacing the fuse blowing up.