Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain an transponder chip that transmits an alert to your car to unlock the doors or start the engine. The fob may stop working for a variety of reasons.
The most frequent cause of key fob malfunction is the battery of the coin is dead. Other causes include water damage, a faulty module, and interference signals.
Dead Coin Battery
If your key fob's battery has died, the first thing to do is replace it. Choose a new button battery that is the same size, voltage and specifications as the old one.
If the key fob was exposed to water, like a splash of rain or salt water at the beach, it will need to be cleaned before it can be used again. A paper towel soaked in isopropyl alcohol or electronic cleaner will do the trick.
If the key fob has not been exposed to water, but it is still not working it could be because of a problem with the receiver module or an internal electronic chip. Reprogramming the keyfob using an OBDII scan could help in these instances.
Water Damage
You could have water damage to your key fob if it was submerged in a pool, puddle or washing machine. It's usually possible to be able to get it back up and running by removing the battery and scrubbing the circuit board with isopropyl alcohol. It's best to let the fob completely dry before putting in batteries.
If your key fob stopped working even after replacing the battery and changing the program, you could have a faulty receiver module. You can find reprogramming instructions for all vehicles' remote key fobs on YouTube or in the owner's guide. You can also try resetting the car's onboard computer with the OBDII scan tool.
Faulty Receiver Module
The key fob's chip is an electronic chip that communicates with the car's system. This chip will stop sending and receiving signals to the car when it is damaged. Dropping the key fob can cause this, as well as water exposure. If the key fob is not working after exposure to water, it could be possible to repair it by cleaning the chip using isopropyl alcohol or electronic cleaner.
If the key fob won't respond to cleaning, it's possible that the component has a fault and needs to be replaced. A damaged receiver can cause the key to stop working. This is usually caused by electromagnetic interference.
Electronic chip that is malfunctioning
The electronic chip inside the key fob is a vital component of the anti-theft system in your car. It sends a signal the immobiliser device in your car to inform it whether the key is in fact valid. The car will not start in the event that the chip is damaged.
A damaged chip could be caused by interference signals from other objects, bad weather conditions or transmitters on the same frequency as your vehicle. In this situation an upgrade to the fob will be needed.
Contacts of the battery may be damaged.
The battery contacts of the key fob are delicate and can get damaged by repeated use. If they are bent, or damaged, the fob will not send any signals to receiver modules in the vehicle.
Modern fobs are constructed with rubber seals in order to keep out water. A splash of water or a light rain is fine However, submerging them in salt water could damage the electronic chip.
The key fob comes with a chip which communicates with the immobilizer system of the vehicle to begin it. The system uses the old red keys that were used in older vehicles, or the crypto coding system in modern vehicles. This chip will need to be changed if it is damaged.
Problems with 12 Volt Batteries
A defective battery can cause the key fob to cease working. The car's computer won't recognize the remote if this occurs.
Test the battery using an voltmeter prior to replacing it to determine its capacity. A fully charged battery will display 12.6 volts. If the reading falls dramatically it is time to replace the battery.
To test the battery's power to determine its capacity, put an electric load on it for a couple of minutes. This will remove 1percent of the surface charges. After that, take the voltage again. The better the battery's capacity, the longer it can keep its voltage. Ideal is that it stays close to 12 volts for several minutes.
Problems with Radio Signal
This is the most frequent reason for a keyfob that ceases to send signals to the car. The issue can be fixed by replacing the battery. However, fiat car keys is crucial to select a replacement battery that has the same voltage and size as the original one.
Fobs endure a lot of abuse, and they aren't indestructible. Battery contacts and buttons can be damaged by rough handling.
A signal may also be disrupted by other objects or transmitters which use the same frequency. For example, a light-control panel in your home could send interference over the same frequency as key fobs use. This could interfere with the remote control of your car.
Faulty OBDII Scan Tool
There are many reasons why a scanner tool may not function. Some are more complex than others.
Professional scan tools enable mechanics to monitor the car's network and run various self-tests. These can be real time savers, but they can be expensive, and out of the reach of most DIYers.
If your OBD2 scan tool fails to turn on, check the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they're all fine, a fuse may have failed. This is the most typical cause of scan tool failure. The easiest fix is to replace the fuse that is blowing up.