Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain transponder chips that send the signal to your vehicle to open the doors and start the engine. The fob may stop working due to a variety of reasons.
The most frequent cause of key fob malfunction is a dead coin battery. Other causes include water damage, the receiver module is defective and signal interference.
Dead Coin Battery
If the battery in your key fob has died, the first thing to do is replace it. Choose a new button battery that has the same voltage, size and specifications like the previous one.
If the key fob was exposed to water (such as rain or saltwater at the beach) It must be cleaned before being used again. A paper towel soaked in alcohol or electronic cleaner can do the trick.
If the key fob doesn't working despite not being exposed water, it could be due a malfunction in the receiver module or an internal electronic chip. In these cases, reprogramming the key fob with an OBDII scanner may aid.
Water Damage
You might have water damage if your key fob was submerged in a pool, puddle or washing machine. It's possible to fix it by taking the batteries off and cleaning the circuit board with rubbing alcohol. It is a good idea 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 most remote key fobs on YouTube or in your owner's guide. You can also reset the computer of your car using the OBDII scanner tool.
Faulty Receiver Module
The key fob's chip is a chip that communicates with the car's system. If this chip becomes damaged, it cannot longer send and receive signals to the vehicle. The key fob being dropped can result in this, as can water exposure. If the key fob you have purchased has stopped functioning due to exposure to water, you may be able to fix it if you clean the chip with electronic cleaner or isopropylethanol.
If the key fob won't respond to cleaning, it's likely that the module is in issues and needs to be replaced. A faulty receiver module can also cause the remote control key to cease functioning. This usually happens due to electromagnetic interference.
fiat panda key fob replacement that is malfunctioning
The electronic chip inside your key fob is a crucial component of the anti-theft system in your vehicle. It transmits a message to the immobiliser inside your car to inform it if the key is valid. If the chip is damaged or broken, the car will not start.
A defective chip can be caused by interference signals from objects, bad weather conditions or transmitters operating on the same frequency near your car. In this case you'll require an entirely new key fob.
Contacts for the battery that are damaged
The battery contacts on the key fob could be damaged due to heavy use. If they're bent or broken, the fob won't send any signals to the receiver modules in the vehicle.
Modern fobs are constructed with rubber seals that keep out water. A splash of water or light rain should be fine but submerging them into saltwater could harm the electronic chip.
The key fob has a chip which communicates with the immobilizer system of the vehicle to begin it. This system uses crypto coding systems in vehicles that are more modern, or the old red key system for older models. This chip will have to be replaced if it's faulty.
Poor 12 Volt Battery
A faulty battery may cause the key fob to work. The car's computer won't recognize the remote when this happens.
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 significantly, it's time to replace it.
To test the battery's power put an electrical load on it for a few minutes. This will eliminate 1% of the surface charges. Then take another measurement of the voltage. The longer a battery is able to hold its voltage, the better its capacity. Ideally, it should remain close to 12 volts for several minutes.
Radio Signal Faulty Radio Signal
This is the main reason behind a key fob that ceases to send signals to the car. The battery is able to be replaced to resolve this issue. It is important to buy a battery that has the same dimensions and voltage as the original.
Fobs are not indestructible and are susceptible to damage. Contacts on batteries and buttons can be damaged through rough handling.
A signal can also be disrupted by other objects or transmitters which use the same frequency. For example, a light-control panel near your home may send interference over the same frequency as key fobs utilize. This could cause interference with the remote control of your car.
Faulty OBDII Scan Tool
There are many reasons why a scanner could not function. Certain are more complicated than others.
Professional scan tools let a mechanic observe the car's network, and run various self-tests. These are great time savers, however they are also extremely expensive, and out of the range of most DIYers.
If your OBD2 scanner isn't turning on Check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If they're both in good shape it's likely that a fuse has been blown. This is one of the most frequent causes of scan tool failure. It is often simple to fix the issue by replacing the fuse that was blown.