Fiat Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder which transmits a signal from the fob to the car that allows it to unlock doors or start the motor. The fob could stop working due to a variety of reasons.

A dead battery for the coin is the most common cause of malfunctioning keys. Other causes include water damages or a damaged module and interference signals.

Dead Coin Battery

If your key fob battery has gone out of service, the first thing to do is replace it. Make use of a button cell battery with the same voltage, size and specification as your old one.

If the key fob has been exposed to water, such as a splash of rain or salt water at the beach, it needs to be cleaned before it can be used again. A paper towel soaked in alcohol or electronic cleaner can be the solution.

If the key fob is not working despite not being exposed water, it could be due to a malfunction in the receiver module or in the internal electronic chip. In these cases it is possible to re-programme the key fob with an OBDII scanner might help.

Water Damage

If your key fob has taken immersed in a puddle or pool or walked down the washing machine, you could be suffering some water damage. You can usually restore it's functionality by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It is a good idea to let the fob dry completely prior to installing a new battery.

You could have a damaged module in the event that your key fob stops working after replacing the battery or reprogramming. Reprogramming instructions are available for most vehicles' remote key fobs on YouTube or in the owner's manual. You can also try resetting the car's onboard computer using the OBDII scan tool.

Faulty Receiver Module

The key fob's chip is the chip that communicates the vehicle's system. This chip will stop sending and receiving signals to the car if damaged. The key fob being dropped can cause this, as can water exposure. If the key fob you have purchased has stopped working due to exposure to water or water exposure, you might be able to fix it if you clean the chip using electronic cleaner or isopropylethanol.

If the key fob does not respond to cleaning, it's likely that the module is in an issue and must be replaced. A faulty receiver module can also cause the remote control key to stop functioning. This is usually due to electromagnetic interference.

Faulty Electronic Chip

The electronic chip inside your key fob plays an important role in the anti-theft security system of your car. It sends a signal the immobiliser unit in your vehicle to tell it whether the key is in fact valid. Your car will not start in the event that the chip is damaged.

A malfunctioning chip can be caused by interference from other objects, weather conditions or transmitters in the vicinity of your vehicle. In this case the replacement key fiat 500 fob will be required.

Contacts for the battery that are damaged

The battery contacts of a key fob are very fragile and are susceptible to damage when used for long periods of time. If they're bent or damaged, the fob will not send any signals to the receiver modules inside the vehicle.

Modern fobs feature rubber seals to keep out water. Submerging them in water, even if it is just small splash or drizzle, can damage the electronic chip.

The key fob has an electronic chip that communicates with the vehicle's immobilizer system to activate it. This system uses crypto coding systems in the latest vehicles, or the old red key system used in older models. This chip will have to be replaced if malfunctioning.

A faulty 12 Volt battery

A damaged battery can cause the key fob to cease working. When this occurs the car's computer will not recognize that the remote is in the vehicle.

Before you replace the battery, test it with a voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly then it's time to replace it.

Put an electrical load for a few moments on the battery to determine its capacity. This will eliminate 1% of the surface charges. After that, take the voltage once more. The better the battery's capacity, the longer it can keep its voltage. Ideal is to hold close to 12 volts over several minutes.

Radio Signal Faulty Radio Signal

This is the main reason for the key fob not sending signals to cars. The battery can be replaced to fix this issue. It is essential to purchase a battery that has the same voltage and dimensions as the original.

Fobs endure a lot of abuse, but they're not indestructible. The battery buttons and the contacts are fragile and are susceptible to being bent or damaged from the force of.

Other transmitters or objects that use the same frequency can disrupt the signal. A light-control panel at your home, for service instance, may interfere with key fobs that use the same frequency. This can interfere with your car's remote control.

The tool is not working properly. OBDII scan tool

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

Professional scan tools enable mechanics to examine the car's systems and perform a variety of self-tests. These tools can save time, but are expensive and out of reach for most DIYers.

If your OBD2 scan tool isn't turning on, check voltage at terminals 16 (scantool power) and 4 (chassis earth). If these are OK the chances are that a fuse has blown. This is among the most common causes of scan tool failure. The easiest fix is to replace the blown fuse.