The Fiat 500 Keys Case Study You'll Never Forget
Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain an transponder chip that transmits the signal to your vehicle to open the doors and start the engine. However, the fob may stop working for several reasons.
A dead battery for the coin is the most common reason for a key fob malfunction. Other causes are water damage as well as a defective module and interference signals.
Dead Coin Battery
Replace the battery in case your key fob is dead. Make use of a new button battery that is identical in size, voltage, and specification as 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. The best way to do this is using a paper towel that has been soaked in isopropyl, or electronic cleaner.
If the key fob hasn't been exposed to water, but still does not work, there may be an issue with the receiver module or an internal electronic chip. Reprogramming the keyfob through an OBDII scan may assist in these situations.
Water Damage
If your key fob has taken immersed in a puddle or pool, or taken a trip to the washing machine, you may have some water damage. It's usually possible to be able to get it back up and running by taking off the battery and then scrubbing the circuit board with isopropyl alcohol. It is best to let the circuit board completely dry prior to installing a battery.
There could be a problem with the module in the event that your key fob stops working after replacing the battery or replacing it with. There are reprogramming guidelines for all vehicles' remote key fobs on YouTube or in your owner's guide. You can also try resetting the car's onboard computer using the OBDII scan tool.
Faulty Receiver Module
The key fob is equipped with a chip that connects to the vehicle's system. If this chip becomes damaged, it cannot longer be able to send or receive signals to the vehicle. A key fob falling off can result in this, as can water exposure. If the key fob stopped functioning after exposure to water, it could be possible to fix the issue by cleaning the chip with isopropyl ethanol or electronic cleaner.
If the key fob doesn't respond to cleaning, it is possible that the receiver module has an issue and should be replaced. A defective receiver can cause the key to not work. This is usually due to electromagnetic interference.
Faulty electronic chip
The electronic chip that is in your key fob is a vital function in the anti-theft security system of your car. It sends a signal the immobiliser unit inside the vehicle to determine whether or not the key is valid. If the chip is damaged or broken, your vehicle will not start.
A defective chip can be caused by interference signals from objects like bad weather conditions or transmitters on the same frequency in close proximity to your vehicle. In this case you'll need a new key fob.
Contacts of the battery may be damaged.
The battery contacts on the fob's key can be damaged through heavy use. If they are damaged or bent, the key fob will not be able to send any signals to the receiver modules inside the car.
Modern fobs come with rubber seals to keep out water. Submerging fiat doblo key in water, even if just the slightest splash or drizzle could harm the chip's electronic components.
The key fob is equipped with chips that communicate with the vehicle's immobilizer to allow it to allow it to start. The system relies on cryptocoding systems in modern vehicles, or the old red key system in older models. If the chip is defective, it will need to be replaced.
Poor 12 Volt Battery
A faulty battery may cause the key fob not to function. If this happens, the car's computer system will not recognize that the remote is inside the vehicle.
Before you replace the battery, test it by using a an voltmeter to gauge its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly then it's time to replace it.
Set an electrical load for a few seconds on the battery to check its capacity. This will remove 1% of the surface charges. After that, measure the voltage. The longer a battery is able to keep its voltage steady more effectively, the greater its capacity. Ideally, it will remain close to 12 volts for several minutes.
Faulty Radio Signal
This is the most typical reason for a keyfob that ceases to send signals to the car. The battery can be replaced to fix this problem. It is important to buy a battery that has the same voltage and dimensions as the original.
Fobs aren't indestructible and are susceptible to damage. The battery buttons and contacts are delicate, so they can get bent or broken by the force of.
Other objects or transmitters using the same frequency can disrupt a signal. A light-control system in your home, for example could interfere with key fobs which use the same bandwidth. This can affect the remote control of your car.
Afflicted OBDII scan tool
There are a number of reasons why a scan tool might not work. Some are more complicated than others.
Professional scan tools let mechanics to look over the car's network and perform various self-tests. These tools can help save time, but are expensive and are out of reach for the majority of DIYers.
If your OBD2 scan tool won't power on, test the voltage at terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition there is a chance that a fuse has been blown. This is the most typical reason for failures of the scanner. It is generally simple to fix the issue by replacing the fuse blowing up.