Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain an transponder chip that transmits signals to your car to open the doors and start the engine. The fob can stop functioning due to a variety reasons.
A dead coin battery is the most common cause of malfunctioning keys. Other reasons include water damage, malfunctioning receiver modules, and signal interference.
Dead Coin Battery
Replace the battery if the key fob has died. Use a new button cell battery that is identical in size, voltage and specification like the previous one.
If the key fob has been exposed to water, for example a splash of rain or salt water on the beach, it will need to be cleaned before it is able to be used again. The best way to do this is using a paper towel that has been soaked in isopropyl or electronic cleaner.
If the key fob isn't working despite being not exposed to water it could be due to a malfunction in the receiver module or internal electronic chip. In these situations it is possible to re-programme the key fob with an OBDII scanner may aid.
Water Damage
You could have water damage to your key fob if it was submerged in a puddle, pool or washing machine. It's possible to fix it by taking out the batteries and cleaning the circuit board using ruby alcohol. It is best to allow the device to completely dry before installing batteries.
If your key fob stopped working even after replacing the battery and reconfiguring it, you may have a malfunctioning receiver module. You can find instructions for reprograming the majority of remote keys on YouTube, or consult your owner's manual. You can also reset your car's computer using the OBDII scanner tool.
Faulty Receiver Module
The key fob contains a chip that communicates with the vehicle's system. This chip will stop sending and receiving signals to the car when it is damaged. This can be caused by dropping the key fob or through exposure to water. If the key fob you have purchased has stopped functioning due to water exposure, you may be able to fix it if you clean the chip using electronic cleaner or isopropyl ethanol.
However, if the key fob does not respond after cleaning it, there is a good chance that the receiver module is not functioning properly and will need to be replaced. A faulty receiver module can also cause the remote control key to stop functioning. This is usually due to electromagnetic interference.
A malfunctioning electronic chip
The electronic chip that is in your key fob plays an important part in the anti-theft security system of your vehicle. It transmits a message to the immobiliser inside your car to determine whether the key is genuine. If the chip is damaged or broken, your vehicle will not start.
A malfunctioning chip can be caused by interference from other objects, bad weather or transmitters close to your vehicle. In this scenario an upgrade to the fob will be required.
Contacts to the battery are not working properly.
The battery contacts on the fob's key can be damaged due to heavy use. If they're broken or bent, the fob will not send any signals to the receiver modules in the car.
Modern fobs are constructed with rubber seals in order to keep out water. A splash of water or light rain is fine but submerging them into salt water could cause damage to the electronic chip.
fiat key fob replacement comes with an embedded chip that communicates to the immobilizer system of the vehicle in order to start it. This system uses crypto coding systems in newer vehicles and the older red key system in older ones. This chip will have to be replaced if it's defective.
Problems with 12 Volt Batteries
A defective battery can cause the key fob to cease working. When this occurs, the car's computer system cannot recognize that the remote is in the vehicle.
Test the battery using an voltmeter prior to replacing it to determine its capacity. A fully charged battery should read 12.6 volts. If the reading falls significantly it is time to replace the battery.
Install an electrical charge for a few moments on the battery to test its capacity. This will remove one percent of the surface charges. Then, measure the voltage once more. The longer a battery is able to hold its voltage, the better its capacity. Ideal is to hold at or near 12 volts for several minutes.
Radio Signal Faulty Radio Signal
This is the most common cause of a key fob that stops sending signals to the car. The issue can be fixed by replacing the battery. But, it is essential to select a replacement battery that has the same voltage and size as the original one.
Fobs take a lot of abuse, but they're not indestructible. The battery contacts and buttons are delicate and are susceptible to being bent or damaged by rough usage.
Other objects or transmitters using the same frequency can interfere with a signal. For instance, a light control panel near your home may transmit interference using the same frequency that key fobs utilize. This can affect the remote control of your car.
Faulty OBDII scan tool
There are many reasons scanners may not function. Certain are more complicated than others.
Professional scan tools enable a mechanic observe the car's network, and run various self-tests. These tools can help save time, but they're expensive and are out of reach for the majority of DIYers.
If your OBD2 scanner doesn't work examine the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If both are in good condition the chances are that a fuse has failed. This is the main reason for failure of the scan tool. The easiest solution is to replace the fuse which has blown.