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 start the motor. However, the key fob may be inoperable due to various reasons.
The most commonly cited reason for key fob failure is the battery of the coin is dead. Other causes include water damages as well as a defective module and interference signals.
Dead Coin Battery
If your key fob battery has gone out of service, the first step is to replace it. Make use of a button cell battery that has the same voltage, size and specification as your old 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. A paper towel that has been soaked in isopropyl alcohol or electronic cleaner can be the solution.
If the key fob hasn't been exposed to water, but it is still not working, there may be an issue with the receiver module or an internal electronic chip. In these situations, reprogramming the key fob with an OBDII scanner could help.
Water Damage
It is possible to get water damage if your key fob was submerged in a puddle, pool or washing machine. It's usually possible to get it working again by taking the battery off and cleaning the circuit board with isopropyl alcohol. It is a good idea to let the fob dry completely before installing a new battery.
You could have a damaged module when your key fob ceases working after replacing the battery or replacing it with. You can find the instructions for reprograming the majority of remote keys on YouTube or refer to 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 a chip that communicates with the car's system. If the chip is damaged, it cannot longer transmit and receive signals to the vehicle. Dropping the key fob could result in this, as can exposure to water. If the key fob stops working after exposure to water it could be possible to fix it by cleaning the chip using isopropyl alcohol or an electronic cleaner.
However, if the key fob continues to not respond after cleaning it it is likely that the component is damaged and will need to be replaced. A damaged receiver module may also cause the remote control key to stop functioning. This is typically caused by electromagnetic interference.
Faulty Electronic Chip
The electronic chip in your key fob plays a crucial role in the anti-theft system of your vehicle. It transmits a signal to the immobiliser unit in the vehicle to determine whether or not the key is in fact valid. Your car won't start in the event that the chip has been damaged.
A malfunctioning chip could be caused by interference signals from objects like bad weather conditions or transmitters operating on the same frequency near your vehicle. In this scenario the replacement fob will be needed.
Contacts for the battery that are defective
The battery contacts of the fob's key can be damaged due to heavy use. If they're damaged or bent, the fob will not send any signals to the receiver modules inside the car.
Modern fobs come with rubber seals to keep out water. A splash of water or a light rain is fine but submerging them into saltwater may cause damage to the chip's electronic components.
The key fob comes with an electronic chip that communicates with the immobilizer system of the vehicle to begin it. This system utilizes cryptocoding systems in vehicles that are more modern or the red key system in older ones. If this chip is faulty and needs to be replaced.
A faulty 12 Volt battery
A damaged battery could cause the key fob not to work. When this occurs, the car's computer system will not recognize that the remote is within the vehicle.
Before you replace the battery, you should test it with a the voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly, it is time to replace the battery.
Set an electrical load for a few moments on the battery to gauge its capacity. This will take away 1percent of the surface charges. Then, you can measure the voltage. The longer the battery is able to hold its voltage and the higher its capacity. The ideal is to keep it close to 12 volts for several minutes.
Problems with Radio Signal
This is the most common reason for keys not sending signals to a car. The battery is able to be replaced to resolve this problem. However, it is crucial to select a replacement battery with the same voltage and size as the original one.
Fobs take a lot of abuse, and they aren't indestructible. fiat car key cutting and buttons can be damaged by rough handling.
Other transmitters or objects operating on the same frequency can also interfere with the signal. A light-control panel at your home, for instance could interfere with key fobs using the same frequency. This could affect the remote control of your car.
Afflicted OBDII scan tool
There are a variety of reasons why scanners don't function. Some are more complex than others.
Professional scan tools enable a mechanic observe the car's network and run various self-tests. They can be huge time-savers, but they can be expensive, and out of the budget of most DIYers.
If your OBD2 scan tool isn't turning on, check the voltage at terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition the fuse could have ruptured. This is the most frequent reason for failure of the scan tool. It is generally simple to fix the issue by replacing the fuse that has blown.