Fiat Panda Key Fob Replacement
Fiat Panda keyfobs are equipped with a transponder that sends an electronic signal from the fob to the car in order to unlock doors or turn on the motor. However, the fob can stop working for several reasons.
The most common cause of key fob malfunction is an inoperable coin battery. Other reasons include water damage, a faulty receiver module and signal interference.
Dead Coin Battery
Replace the battery if the key fob has failed. Use a new button cell battery with the same voltage, size, and specification as the original.
If the key fob has been exposed to water, such as a splash of rain or salt water on the beach, it will have to be cleaned before it is able to be used again. A paper towel that has been soaked in isopropyl alcohol or electronic cleaner can work wonders.
If the key fob is not working despite not being exposed to water it could be due a malfunction in the receiver module or in the internal electronic chip. Reprogramming the keyfob through an OBDII scan may aid in these situations.
Water Damage
It is possible to get water damage if your key fob was submerged in a puddle, pool or washing machine. It is usually possible to get it working again by taking the battery off and cleaning the circuit board with isopropyl alcohol. It is recommended to let the fob completely dry prior to installing a battery.
You may have a faulty module in the event that your key fob stops working after replacing the battery or replacing it with. You can find reprogramming instructions for all vehicles' remote key fobs on YouTube or in the owner's manual. You can also try resetting the car's onboard computer using the OBDII scan tool.
Faulty Receiver Module
The key fob's chip is a chip that communicates with the vehicle's system. If the chip is damaged, it will be unable to longer transmit or receive signals to the vehicle. This could be due to dropping the key fob, or by water exposure. If the key fob you have purchased has stopped functioning due to water exposure it is possible to fix it by attempting to clean the chip using electronic cleaner or isopropyl alcohol.
If the key fob doesn't respond to cleaning, it's possible that the receiver module has an issue and must be replaced. A defective receiver can cause the key to not work. This is usually due to electromagnetic interference.
Faulty Electronic Chip
The chip inside your key fob plays an important part in the anti-theft security system in your car. G28 Car Keys sends a signal the immobiliser device in your vehicle to tell it whether or not the key is genuine. Your car will not start in the event that the chip is damaged.
A malfunctioning chip can be caused by interference from objects, bad weather or transmitters near your vehicle. In this instance an upgrade to the fob will be required.
Contacts with the battery may be damaged.
The battery contacts of the key fob could be damaged through heavy use. If they are bent, or broken, the fob won't transmit any signals to receiver modules in the vehicle.
Modern fobs are equipped with rubber seals to keep out water. Immersing them in water, even if it's just an occasional drizzle or splash can harm the chip's electronic components.
The key fob houses a chip that communicates with the vehicle's immobilizer in order to start it. This system utilizes cryptocoding systems in modern vehicles as well as the traditional red key system in older ones. If the chip is defective it will have to be replaced.
Poor 12 Volt Battery
A defective battery can cause the key fob not to work. The car's computer won't recognize the remote if this occurs.
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 decreases significantly the time is now to replace it.
To test a battery's capacity put an electrical load on it for a few minutes. This will remove 1percent of the surface charges. Then, you can measure the voltage. The greater the battery's capacity and the longer it can maintain its voltage. Ideally, it will remain at 12 volts or less for several minutes.
Faulty Radio Signal
This is the most common reason for the key fob to stop sending signals to a car. This problem can be solved by replacing the battery. It is however important to choose a battery that has the same voltage and size as the original one.
Fobs are subject to a lot of punishment, and aren't impervious to destruction. Battery contacts and buttons can be damaged by rough handling.
A signal can also be disrupted by other transmitters or objects who use the same frequency. For instance, a light-control panel that is near your home could send interference over the same bandwidth that key fobs utilize. This can affect the remote control of your car.
Incorrect OBDII scan tool
There are many reasons why scanner tools may not work. Certain are more complicated than others.
Professional scan tools let a mechanic observe the car's network and perform various self-tests. These tools can help save time, but are expensive and not accessible to the majority of DIYers.
If your OBD2 scan tool isn't turning on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If all is fine the fuse could have blown. This is the most frequent cause of scan tool failure. It is usually simple to fix the issue by replacing the fuse blowing up.