The Fiat 500 Keys Case Study You'll Never Forget

Fiat Panda Key Fob Replacement

Fiat Panda spare key fiat 500 fobs contain a transponder chip which sends an alert to your car to open the doors and start the engine. However, the key fob may stop working due to a variety of causes.

A dead battery for the coin is the most frequent reason for key fob malfunctions. Other causes include water damage as well as a defective module and interference signals.

Dead Coin Battery

Replace the battery if your key fob has gone out of service. Use a button cell that has the same voltage, size, and specifications as the old one.

If the key fob has been exposed to water, such as a splash of rain or salt water at the beach, it's going to need to be cleaned before it is able to be used again. The best solution is to use the paper towel and soak it in isopropyl or electronic cleaner.

If the key fob isn't working despite not being exposed to water it could be due to a problem in the receiver module or internal electronic chip. In these cases it is possible that reprogramming the key fob using an OBDII scanner could help.

Water Damage

If your key fob has taken immersed in a puddle or pool or gone down the washing machine, you may have some water damage. You can usually be able to get it back up and workshop running by removing the battery and scrubbing the circuit board with isopropyl alcohol. It is best to let the fob completely dry before putting in the battery.

If your key fob stopped working even after replacing the battery and changing the program, you could have a malfunctioning receiver module. You can find reprogramming instructions for the majority of vehicles' remote key fobs on YouTube or in the owner's guide. You can also reset the car's computer using the OBDII scanner tool.

Faulty Receiver Module

The key fob is equipped with the chip that communicates the vehicle's system. The chip will stop sending and receiving signals to the car when it is damaged. Dropping the key fob could cause this, as well as water exposure. If the key fob has stopped functioning after exposure to water, it is possible to repair the issue by cleaning or cleaning the chip using isopropyl alcohol or an electronic cleaner.

However, if the key fob still does not respond after cleaning it you can be sure that the module is defective and must be replaced. A faulty receiver module can also cause the remote control key to stop functioning. This usually happens due to electromagnetic interference.

Faulty Electronic Chip

The chip inside your key fob plays a vital role in the anti-theft system of your vehicle. It sends a message to the immobiliser in your car to tell it that the key is valid. If the chip is damaged or broken, the car will not start.

A defective chip could be caused by interference from objects, bad weather or transmitters in the vicinity of your vehicle. In this situation the replacement fob will be required.

Contacts to the battery are not working properly.

The battery contacts of the key fob are delicate and may be damaged when used for long periods of time. If they're bent or damaged, the fob will not transmit any signals to receiver modules inside the vehicle.

Modern fobs are constructed with rubber seals to keep out water. A splash of water or light rain is acceptable however, submerging them in saltwater could harm the electronic chip.

The key fob comes with an electronic chip that communicates with the immobilizer system of the vehicle in order to start it. This system makes use of cryptocoding systems in modern vehicles as well as the traditional red key system in older models. If the chip is damaged, it will need how to program fiat 500 key fob be replaced.

Problems with 12 Volt Batteries

A faulty battery can cause the key fob to cease working. If this happens, the car's computer system won't recognize that the remote is in the vehicle.

Test the battery with the help of a voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly it's time to change it.

To test the battery's capacity put an electrical load on it for a couple of minutes. This will take away approximately 1% of the charge on the surface. Then, measure the voltage once more. The longer a battery can keep its voltage steady greater is its capacity. Ideal is that it stays at or near 12 volts for several minutes.

Radio Signal Faulty Radio Signal

This is the most frequent reason for a keyfob that stops sending signals to the car. This issue can be fixed by replacing the battery. However, it is crucial to buy a new battery that is the same voltage and size as the original one.

Fobs are subject to a lot of abuse, but they're also not indestructible. Contacts on batteries and buttons can be damaged by rough handling.

Other transmitters or objects using the same frequency could also disrupt the signal. A light-control system in your home, for instance, workshop may interfere with key fobs which use the same bandwidth. This could cause interference with your car's remote control.

Faulty OBDII Scan Tool

There are a variety of reasons why scanners may not perform. 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 save a lot of time, but they're expensive and not accessible to most DIYers.

If your OBD2 scanner isn't turning on examine the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If they're both in good shape, it's likely that a fuse has blown. This is the main reason for a scan tool to fail. It is generally easy to fix the problem by replacing the fuse that was blown.