fiat punto remote key replacement Panda Key Fob replacement key fiat 500

Fiat Remote Key Panda key fobs contain a transponder chip which sends the signal to your vehicle to open the doors or start the engine. However, the fob may be inoperable due to various reasons.

A dead coin battery is the most common reason for 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 battery is dead, the first step is to replace it. Make use of a button cell battery with the same voltage, size and specification as your old one.

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

If the key fob doesn't 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 help in these instances.

Water Damage

If your key fob has taken an immersion in the puddle or pool or gone down the wash machine, you may have some water damage. It's usually possible to be able to get it back up and running by taking the battery off and cleaning the circuit board with isopropyl alcohol. It's a good idea to allow the fob to dry completely before putting in a new battery.

You could have a damaged module when your key fob ceases working after replacing the battery or reprogramming. There are reprogramming guidelines for most remote key fobs on YouTube or in your owner's guide. You can also reset the computer in your car with the OBDII scanner tool.

Faulty Receiver Module

The key fob is equipped with a chip that communicates with the vehicle's system. The chip will stop sending and receiving signals to the car when it is damaged. A key fob falling off can cause this, as well as water exposure. If the key fob stopped working after water exposure it is possible to fix the issue by cleaning the chip using isopropyl alcohol, or electronic cleaner.

However, if the key fob still does not respond even after cleaning it there is a good chance that the component is damaged and will require to be replaced. A malfunctioning receiver could cause the key to cease to function. This is usually due to electromagnetic interference.

A malfunctioning electronic chip

The chip inside your key fob plays a vital part in the anti-theft security system of your vehicle. It sends a message to the immobiliser inside your car to inform it whether the key is legitimate. If the chip is damaged or broken, the car will not start.

A damaged chip could be caused by interference from other objects, weather conditions or transmitters in the vicinity of your vehicle. In this scenario you'll need an entirely new key fob.

Faulty Battery Contacts

The battery contacts of the key fob are delicate and can get damaged when used for long periods of time. If they're bent, or damaged, the fob will not transmit any signals to receiver modules in the vehicle.

Modern fobs are constructed with rubber seals that keep out water. A splash of water or light rain is fine, but submerging them in saltwater can harm the electronic chip.

The key fob contains an electronic chip that communicates with the immobilizer system of the vehicle in order to start it. It uses the old red fiat punto keys in older vehicles as well as the cryptocoding system found in modern vehicles. The chip must be replaced if malfunctioning.

Problems with 12 Volt Batteries

A faulty battery may cause the key fob to work. The car's system will not recognize the remote when this happens.

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

To test the battery's power test the battery's capacity by placing an electrical load on it for a couple of minutes. This will take off approximately 1 percent of the charge on the surface. After that, measure the voltage. 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.

The radio signal is not working properly. Radio Signal

This is the main reason for the key fob to stop sending signals to cars. This issue can be resolved by replacing the battery. It is important to buy batteries that have the same voltage and dimensions as the original.

Fobs endure a lot of punishment, and aren't impervious to destruction. The battery contacts and buttons are delicate which means they could be bent or damaged from the force of.

Other transmitters or objects using the same frequency may also interfere with the signal. For instance, a lighting control panel near your home may send interference over the same frequency as key fobs utilize. This can interfere with the remote control of your car.

Faulty OBDII scan tool

There are many reasons a scanner tool may not perform. Certain are more complicated than others.

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

If your OBD2 scan tool isn't turning on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they're all fine the fuse could have been blown. This is the main cause of scan tool failure. It is usually easy to fix the problem by replacing the fuse that has blown.