An Fiat 500 Keys Success Story You'll Never Be Able To

Fiat Panda Key Fob Replacement

fiat punto keys Panda keyfobs are equipped with a transponder that transmits an electronic signal from the fob to the car in order to unlock doors or start the motor. However, the fob may stop working for several reasons.

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

Dead Coin Battery

If the battery in your key fob has failed, the initial thing to do is replace it. Make use of a button cell battery with the same voltage, size and specifications as your previous one.

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

If the key fob isn't working despite not being exposed water, it could be due to a malfunction in the receiver module, or even in the internal electronic chip. Reprogramming the keyfob through an OBDII scan could help in these cases.

Water Damage

If your key fob has taken an immersion in the puddle or pool, or taken a trip to the washing machine, you could be suffering some water damage. It's generally possible to get it working by taking out the batteries and cleaning the circuit board using ruby alcohol. It's best to let the fob dry completely prior to installing a new battery.

It could be that you have a defective module if your key fob stops working after replacing the battery or changing the programming. You can find reprogramming instructions for the majority of vehicles' remote key fobs on YouTube or in the owner's guide. You can also reset your computer of your car using the OBDII scanner tool.

Faulty Receiver Module

The key fob is equipped with the chip that communicates with the car's system. If the chip is damaged, it will no longer be able to send or receive signals to the vehicle. This could be due to dropping the key fob or by water exposure. If the key fob has stopped working after water exposure it is possible to ignition repair it by cleaning the chip with isopropyl ethanol or electronic cleaner.

If the key fob does not respond even after cleaning it you can be sure that the component is damaged and needs to be replaced. A malfunctioning receiver module could also cause the remote control key to cease functioning. This is typically caused by electromagnetic interference.

Electronic chip that is malfunctioning

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

A defective chip could be caused by interference from other objects, bad weather or transmitters close to your vehicle. In this case it is likely that a new fob would be needed.

Contacts of the battery may be damaged.

The battery contacts in a key fob are very delicate and may be damaged with hard usage. If they are bent, or damaged, the fob will not send any signals to receiver modules inside the vehicle.

Modern fobs come with rubber seals in order to keep out water. A splash of water or a light rain is fine however, submerging them in saltwater may harm the chip's electronic components.

The key fob is equipped with a chip that communicates with the vehicle's immobilizer in order to start it. The system uses the old red keys for older vehicles or the cryptocoding system that is used in modern vehicles. This chip will have to be replaced if it's damaged.

Poor Replacement Fiat key 12 Volt Battery

A malfunctioning battery could cause the remote to cease to function. If this happens the car's computer won't recognize that the remote is within the vehicle.

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

To determine the capacity of a battery test the battery's capacity by placing an electrical load on it for a few minutes. This will remove approximately 1% of the surface charge. After that, take the voltage once more. The longer the battery can keep its voltage steady greater is its capacity. Ideally, it will remain close to 12 volts several minutes.

Problems with Radio Signal

This is the most frequent cause of a key fob that stops sending signals to the car. This issue can be fixed by replacing the battery. But, it is essential to purchase a battery with the same voltage and size as the original.

Fobs are not indestructible and can withstand a lot. The battery buttons and contacts are delicate and are susceptible to being bent or broken by the force of.

A signal may also be affected by other transmitters or objects that operate on the same frequency. A light-control panel at your home, for example, may interfere with key fobs which use the same bandwidth. This can interfere with the remote control in your car.

Incorrect OBDII Scan Tool

There are many reasons why scanners don't perform. Some are more complex than others.

Professional scan tools allow mechanics to examine the car's systems and run a range of self-tests. These are real time savers, but they can be expensive, and out of the reach of most DIYers.

If your OBD2 scan tool won't power on, check voltage at terminals 16 (scantool power) and 4 (chassis earth). If these are OK it's possible that a fuse is blowing. This is the most common reason for failures of the scanner. The easiest fix is to replace the blown fuse.