Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain a transponder chip which sends an alert to your car to open the doors or start the engine. However, the fob may stop working due to a variety of causes.
A dead coin battery is the most frequent reason for key fob malfunctions. Other causes include water damage malfunctioning receiver modules, and signal interference.
Dead Coin Battery
Replace the battery if your key fob has died. Make use of a new button battery that is identical in size, voltage and specification as the old one.
If the key fob was exposed to water (such as rain or saltwater at the beach) it must be cleaned before using again. A paper towel soaked in isopropyl alcohol or electronic cleaner can help.
If the key fob hasn't been exposed to water but remains inoperable it could be due to an issue with the receiver module or an internal electronic chip. Reprogramming the keyfob by using an OBDII scan may help in these cases.
Water Damage
You could have water damage if your key fob was submerged in a pool, puddle or washing machine. It is usually possible to get it working by removing the batteries and cleaning the circuit board using ruby alcohol. It's a good idea allow the fob to dry completely before putting in a new battery.
If your key fob stopped working, even after replacing the battery and programming it again, you might have a problem with the receiver module. There are reprogramming guidelines for most vehicles' remote key fobs on YouTube or in the owner's manual. You can also try resetting the car's onboard computer with the OBDII scan tool.
Faulty Receiver Module
The key fob's chip is a chip that communicates with the car's system. If the chip is damaged, it can no longer transmit or receive signals to the vehicle. The key fob being dropped can result in this, as can water exposure. If the key fob is not working after exposure to water it could be possible to fix the issue by cleaning the chip using isopropyl alcohol or an electronic cleaner.
However, if the key fob is still unable to not respond after cleaning it, it is likely that the receiver module is not functioning properly and needs to be replaced. A malfunctioning receiver could cause the key to cease to function. This is usually due to electromagnetic interference.
A malfunctioning electronic chip
The electronic chip inside the key fob is an essential element of the anti-theft device in your car. It transmits a message to the immobiliser inside your car to tell it whether the key is legitimate. If the chip is damaged or broken, your vehicle won't start.
A malfunctioning chip could be caused by interference signals from other objects like bad weather conditions or transmitters operating on the same frequency close to your car. In this scenario you'll require an entirely new key fob.
Contacts with the battery may be damaged.
The battery contacts on the key fob are fragile and are susceptible to damage with hard usage. If they're bent, or damaged, the fob will not send any signals to the receiver modules inside the vehicle.
Modern fobs are made with rubber seals to keep out water. Immersing them in water, even if it's just a light drizzle or splash can harm the chip's electronic components.
The key fob contains a chip that communicates with the vehicle's immobilizer to allow it to allow it to start. The system utilizes the old red keys for older vehicles, or the cryptocoding system that is used in newer vehicles. This chip will need to be replaced if malfunctioning.
Problems with 12 Volt Batteries
A damaged battery can cause the key fob to stop working. The car's system will not recognize the remote if this occurs.
Before replacing the battery, you should test it with a a voltmeter to determine its capacity. A fully charged battery will read 12.6 volts. If the reading falls significantly the time is now to replace it.
Set an electrical load for a few moments on the battery to test its capacity. fiat car keys will take away 1% of the surface charges. Then, test the voltage again. The greater the battery's capacity is, the longer it will keep its voltage. It is ideal to maintain close to 12 volts during several minutes.
Radio Signal Faulty Radio Signal
This is the most common reason behind a key fob that ceases to send signals to the car. The battery can be replaced to fix this problem. It is however important to purchase a battery that has the same size and voltage as the original one.
Fobs are subject to a lot of abuse, but they're also not impervious to destruction. Contacts on batteries and buttons can be damaged through rough handling.
Other transmitters or objects that use the same frequency may also disrupt the signal. A light-control panel in your home, for example could interfere with key fobs that use the same bandwidth. This could affect the remote control of your car.
Afflicted OBDII Scan Tool
There are many reasons why a scanner could not function. Certain are more complicated than others.
Professional scan tools allow mechanics to observe the car's networks and perform a variety of self-tests. These are real time savers, however they are also extremely expensive and are out of the budget of many DIYers.
If your OBD2 scan tool isn't turning on, test the voltage at terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition the chances are that a fuse has blown. This is the main reason for failure of the scan tool. It is generally easy to fix the issue by replacing the blown fuse.