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fiat spare key Panda Key Fob Replacement

fiat 500 key Panda key fobs contain a transponder chip which sends a signal to your car to unlock the doors or start the engine. The fob may stop working for a variety.

A dead coin battery is the most common cause of a key fob malfunction. Other causes include water damage as well as a defective module and interference signals.

Dead Coin Battery

If your key fob's battery has failed, the initial step is to replace it. Make use of a new button battery with exactly 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. The trick is to use a paper towel that has been soaked in isopropyl or an electronic cleaner.

If the key fiat fob has not been exposed to water, but still does not work it could be due to 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

There could be water damage to your Spare Key Fiat 500 fob if it was submerged in a pool, puddle or washing machine. It's usually possible to get it working again by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It is recommended to let the circuit board completely dry before putting in the battery.

If your key fob stopped working, even after replacing the battery and changing the program, you could have a problem with the receiver module. You can find the instructions for changing the programming of most remote keys on YouTube or refer to the owner's manual. You can also reset your car's computer using the OBDII scanner tool.

Faulty Receiver Module

The key fob contains the chip that communicates with the fiat 500 car key's system. If the chip is damaged, it can no longer transmit and receive signals to the vehicle. Dropping the key fob could cause this, as well as water exposure. If the key fob stopped working after water exposure it could be possible to fix it by cleaning the chip using isopropyl alcohol or electronic cleaner.

If the key fob continues to not respond even after cleaning it there is a good chance that the receiver module is not functioning properly and will require to be replaced. A malfunctioning receiver could cause the key to cease to function. This is usually due to electromagnetic interference.

Electronic chip that is malfunctioning

The electronic chip in your key fob is a vital component of the anti-theft system in your vehicle. It sends a signal the immobiliser unit in the vehicle to determine whether or not the key is valid. The car will not start in the event that the chip is damaged.

A malfunctioning chip can be caused by interference from objects, bad weather or transmitters close to your vehicle. In this scenario you'll need an entirely new key fob.

Contacts for the battery that are damaged

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

Modern fobs come with rubber seals that keep out water. A splash of water or light rain is acceptable, but submerging them in saltwater could harm the chip's electronic components.

The key fob comes with an embedded chip that communicates to the immobilizer system of the vehicle to start it. The system utilizes the old red keys in older vehicles or the cryptocoding system found in the latest vehicles. This chip needs to be replaced if it's defective.

A faulty 12 Volt battery

A malfunctioning battery could cause the remote to stop working. When this occurs the car's computer will not be able to recognize that the remote is in the vehicle.

Test the battery with a voltmeter before replacing it to determine its capacity. A fully charged battery should read 12.6 volts. If the reading drops dramatically it's time to change it.

Place an electrical load for a few seconds on the battery to check its capacity. This will take away 1percent of the surface charges. Then, you can measure the voltage once more. The greater the battery's capacity and the longer it can keep its voltage. The ideal is to keep it at or near 12 volts for several minutes.

Problems with Radio Signal

This is the main reason for keys not sending signals to cars. The issue can be fixed by replacing the battery. But, it is essential to choose a battery that is the same size and voltage as the original.

The buttons are not impervious to destruction and are susceptible to damage. The battery contacts and buttons are delicate which means they could be bent or damaged by rough use.

Other objects or transmitters using the same frequency may also disrupt a signal. A light-control system in your home, for example can interfere with key fobs that use the same bandwidth. This can interfere with the remote control of your car.

Problems with OBDII Scan Tool

There are a number of reasons why a scanner may not work. Some are more complicated than others.

Professional scan tools let a mechanic observe the car's network and perform various self-tests. These tools can help save time, but are expensive and out of reach for most DIYers.

If your OBD2 scan tool isn't turning on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition it's possible that a fuse has blown. This is the most frequent reason for failure of the scan tool. The easiest fix is to replace the fuse that is blowing up.