Fiat key fob not working Panda Key Fob fiat punto replacement key

fiat 500x key fob programming Panda keyfobs are equipped with a transponder that sends an indication from the fob to the car in order to unlock doors or turn on the motor. The fob may stop working for a variety of reasons.

A dead battery for the coin is the most frequent cause of key fob malfunctions. Other causes include water damages as well as a defective module and interference signals.

Dead Coin Battery

Replace the battery if your key fob has failed. Use a button cell battery that has the same voltage, size and specification as your old one.

If the key fob was exposed to water (such as saltwater or rain at the beach), it must be cleaned prior to being used again. A paper towel that has been soaked in isopropyl alcohol or electronic cleaner will work wonders.

If the key fob isn't working even though it is not exposed to water it could be due to a problem in the receiver module or in the internal electronic chip. Reprogramming the keyfob by using an OBDII scan could help in these cases.

Water Damage

It is possible to get water damage if your key fob was submerged in a pool, puddle or washing machine. It's generally possible to get it back in working order by taking the batteries off and cleaning the circuit board with ruby alcohol. It's best to allow the device to completely dry before installing batteries.

You could have a damaged module in the event that your key fob stops working after replacing the battery or reprogramming. You can find information on the reprogramming of most remote keys on YouTube or refer to the 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 which communicates with the vehicle's system. If the chip is damaged, it will no longer be able to send or receive signals to the vehicle. Dropping the key fob can cause this, as can exposure to water. If the key fob has stopped working after exposure to water it is possible to repair it by cleaning the chip with isopropyl alcohol or electronic cleaner.

If the key fob continues to not respond following cleaning, it is likely that the receiver module is not functioning properly and will require to be replaced. A defective receiver can cause the key to stop working. This is usually due to electromagnetic interference.

A malfunctioning electronic chip

The chip that is embedded in your key fob is a vital element of the anti-theft device in your car. It sends a signal the immobiliser unit in your car to inform it whether or not the key is genuine. The car won't start when the chip is damaged.

A defective chip could be caused by interference caused by objects, bad weather or transmitters near your vehicle. In this situation an upgrade to the fob will be needed.

Contacts for the battery that are defective

The battery contacts of the fob's key can be damaged by heavy usage. If they are bent, or broken, the fob won't transmit any signals to receiver modules inside the vehicle.

Modern fobs come with rubber seals to keep out water. A splash of water or light rain is acceptable However, submerging them in salt water could damage the chip's electronic components.

The key fob has an electronic chip that communicates with the immobilizer system of the vehicle to begin it. The system is based on the old red keys in older vehicles as well as the cryptocoding system that is used in the latest vehicles. The chip must be replaced if it's defective.

A faulty 12 Volt battery

A damaged battery can cause the remote to stop working. When this occurs, the car's computer system cannot recognize that the fiat 500 remote key programming is inside the vehicle.

Test the battery with an voltmeter prior to replacing it to determine its capacity. A fully charged battery will display 12.6 volts. If the reading drops significantly, it is time to replace the battery.

Place an electrical load for a short period of time on the battery to test its capacity. This will eliminate approximately 1 percent of the surface charge. Then measure the voltage again. The longer a battery can keep its voltage steady and the higher its capacity. The ideal scenario is to keep it at 12 volts or less for several minutes.

The radio signal is not working properly. Radio Signal

This is the main cause of 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 dimensions and voltage as the original.

Fobs aren't indestructible and are susceptible to damage. Contacts and buttons on batteries can be damaged through rough handling.

Other transmitters or objects that use the same frequency could also interfere with a signal. A light-control panel in your home, for example could interfere with key fobs using the same frequency. This could affect the remote control in your car.

Incorrect OBDII Scan Tool

There are many reasons scanners don't function. Some are more complicated than others.

Professional scan tools enable mechanics to look over the car's network and perform various self-tests. They can be huge time savers, however they are also extremely expensive, out of the reach of most DIYers.

If your OBD2 scanner isn't turning on make sure you check the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If these are OK it's possible that a fuse has blown. This is the most frequent reason for a scan tool to fail. It is often simple to fix the issue by replacing the fuse that was blown.