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. However, the fob may stop working due to a variety of causes.
The most common reason for key fob malfunction is the battery of the coin is dead. Other reasons include water damage, malfunctioning receiver modules and signal interference.
Dead Coin Battery
If the battery in your key fob has gone out of service, the first step is to replace it. Choose a new button battery with the same voltage, size and specification like the previous one.
If the key fob was exposed to water (such as saltwater or rain at the beach), it must be cleaned prior to using it again. The trick is to use a paper towel soaked with isopropyl, or electronic cleaner.
If the key fob is not working even though it is not exposed to water, it could be due to a problem in the receiver module or in the internal electronic chip. Reprogramming the keyfob through an OBDII scan can aid in these situations.
Water Damage
You could have water damage to your key fob if it was submerged in a puddle, pool or washing machine. It's generally possible to repair it by taking out the batteries and cleaning the circuit board using ruby alcohol. It is recommended to let the fob completely dry prior to installing batteries.
If your key fob has stopped working, even after replacing the battery and reprogramming it, you may have a malfunctioning receiver module. There are reprogramming guidelines for the majority of vehicles' remote key fobs on YouTube or in the owner's manual. You can also reset the computer of your vehicle using the OBDII scanner tool.
Faulty Receiver Module
The key fob contains the chip that communicates with the vehicle's system. If the chip is damaged, it will be unable to 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 your key fob stopped working due to exposure to water, you may be able to fix it by attempting to clean the chip with electronic cleaner or isopropyl ethanol.
If the key fob continues to not respond after cleaning it then it is likely that the module is defective and needs to be replaced. A faulty receiver can also cause the key to stop working. This is usually due to electromagnetic interference.
Electronic chip that is malfunctioning
The electronic chip in the key fob is an essential part of the anti-theft system in your vehicle. It transmits a signal to the immobiliser device in the vehicle to determine whether or not the key is legitimate. If the chip is damaged or broken, the car will not start.
A damaged chip could be caused by interference signals from objects or weather conditions that are bad, or transmitters on the same frequency near your vehicle. In this scenario an upgrade to the fob will be needed.
Contacts for the battery that are defective
The battery contacts on the key fob are delicate and may be damaged with hard usage. If they are bent, or broken, the fob won't send any signals to receiver modules in the vehicle.
Modern fobs feature rubber seals to keep out water. Submerging them in water, even if it's only the slightest splash or drizzle, can damage the electronic chip.
The key fob is equipped with chips that communicate with the vehicle's immobilizer system in order to begin it. The system relies on cryptocoding systems in modern vehicles and the older red key system for older models. The chip must be replaced if malfunctioning.
A faulty 12 Volt battery
A damaged battery could cause the key fob not to function. The car's system will not recognize the remote when this happens.
Test the battery with the voltmeter before replacing it to determine its capacity. A fully charged battery will read 12.6 volts. If the reading falls dramatically, it is time to replace the battery.
Set an electrical load for a short time on the battery to test its capacity. This will take off approximately 1 percent of the charge on the surface. Then, test the voltage again. The higher the capacity of the battery and the longer it can maintain its voltage. The ideal scenario is to keep it close to 12 volts for several minutes.
Faulty Radio Signal
This is the most common reason for a key fob to stop sending signals to the car. The battery could be replaced to fix this issue. It is crucial to purchase a battery with the same dimensions and voltage as the original.
Fobs endure a lot of abuse, but they're not indestructible. The battery buttons and the contacts are fragile, so they can get bent or damaged by rough use.
A signal can also be disrupted by other objects or transmitters which use the same frequency. For instance, a lighting control panel near your home may send interference on the same bandwidth that key fobs utilize. This can affect the remote control of your car.
The tool is not working properly. OBDII scan tool
There are a number of reasons why a scan tool could not function. Some are more complicated than others.
Professional scan tools let mechanics to observe the car's network, and run various self-tests. These can be real time savers, but they can also be very expensive and are out of the range of most DIYers.
If your OBD2 scan tool won't power 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 one of the most frequent causes of scan tool failure. www.g28carkeys.co.uk is usually simple to fix the issue by replacing the fuse that has blown.