One Fiat 500 Keys Success Story You'll Never Imagine
Fiat Panda Key Fob Replacement
Fiat Panda keyfobs are equipped with a transponder, which sends an electronic signal from the fob to the car to unlock doors or turn on the motor. The fob might stop working due to a variety reasons.
The most common reason for key fob failure is an inoperable coin battery. Other causes include water damage, the receiver module is defective and signal interference.
Dead Coin Battery
Replace the battery if your key fob has gone out of service. Choose a new button battery with the same size, voltage and specifications as the old one.
If the key fob was exposed to water (such as rain or saltwater at the beach) it must be cleaned prior to using it 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 a malfunction in the receiver module, or even in the internal electronic chip. Reprogramming the keyfob with an OBDII scan may assist in these situations.
Water Damage
There could be water damage if your key fob was submerged in a puddle, pool or washing machine. It's usually possible to repair it by taking the batteries off and cleaning the circuit board with rubbing alcohol. It's a good idea to let the fob dry completely before installing a new battery.
There could be a problem with the module when your key fob ceases working after replacing the battery or reprogramming. There are instructions for the reprogramming of most remote keys on YouTube or refer to your owner's manual. You can also reset the computer in your car with the OBDII scanner tool.
Faulty Receiver Module
The key fob is equipped with a chip which communicates with the vehicle's system. The chip will stop sending and receiving signals to the car if it becomes damaged. The key fob being dropped can result in this, as can water exposure. If your key fob has stopped functioning due to water exposure, you may be able fix the issue if you clean the chip using electronic cleaner or isopropyl alcohol.
However, if the key fob is still unable to not respond after cleaning it, you can be sure that the module is defective and must be replaced. A damaged receiver module may also cause the remote control key to not function. This is usually caused by electromagnetic interference.
Faulty Electronic Chip
The electronic chip in your key fob is an essential element of the anti-theft device in your car. It transmits a message to the immobiliser in your car to tell it if the key is valid. The car won't start in the event that the chip is damaged.
A faulty chip may also be caused by interference from other objects, bad weather or transmitters located near your vehicle. In this situation an upgrade to the fob will be needed.
Contacts with the battery may be damaged.
The battery contacts in the key fob are delicate and could be damaged by repeated use. If they are bent or broken the fob will not send any signals to the receiver modules in the car.
Modern fobs are made with rubber seals in order to keep out water. In the event of submerging them in water, even if just a light drizzle or splash could harm the chip's electronic components.
The key fob has chip that communicates with the immobilizer system of the vehicle to begin it. The system is based on the red keys of older vehicles, or the crypto coding system in newer cars. The chip must be changed if it is defective.
Poor 12 Volt Battery
A defective battery can cause the key fob to stop working. The car's computer will not recognize the remote when this occurs.
Test the battery with the help of a voltmeter to determine its capacity. A fully charged battery should display 12.6 volts. If the reading drops significantly, it's time to replace it.
Install an electrical charge for a short period of time on the battery to gauge its capacity. This will take away 1percent of the surface charges. Then, you can measure the voltage again. The longer the battery can keep its voltage steady more effectively, the greater its capacity. The ideal is to keep it close to 12 volts during several minutes.
Radio Signal Faulty Radio Signal
This is the most common reason behind a key fob that stops sending signals to the car. The battery could be replaced to fix this issue. But, it is essential to buy a new battery that is the same voltage and size as the original.
Fobs are subject to a lot of abuse, but they're not impervious to destruction. The battery buttons and the contacts are fragile and are susceptible to being bent or broken by excessive use.
Other transmitters or objects using the same frequency may also interfere with a signal. A light-control system in your home, for example can interfere with key fobs which use the same frequency. This can interfere with the remote control of your car.
Afflicted OBDII scan tool
There are many reasons why a scan tool could not function. Some are more complicated than others.
thekeylab.co.uk permit mechanics to observe the car's networks and run a range of self-tests. These tools can save you a lot of time, but they're expensive and are out of reach for most DIYers.
If your OBD2 scan tool fails to turn on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition, a fuse may have been blown. This is the most typical reason for a scan tool to fail. It is generally simple to fix the issue by replacing the fuse blowing up.