The Intermediate Guide In Fiat 500 Keys

fiat 500 key Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder that sends signals from the fob to the car to open doors or start the motor. The fob may stop working due to a variety of reasons.

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

Dead Coin Battery

If the battery in your key fob has failed, the initial thing to do is 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 rain or saltwater at the beach), it must be cleaned prior to being used again. The best way to do this is using a paper towel soaked with isopropyl or an 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 an internal electronic chip. Reprogramming the keyfob by using an OBDII scan can aid in these situations.

Water Damage

There could be water damage if your key fob was submerged in a pool, puddle or washing machine. It is usually possible to fix it by taking the batteries off and cleaning the circuit board with ruby alcohol. It is recommended to allow the device to completely dry before installing a battery.

If your key fob stopped working even after replacing the battery and changing the program, you could have a defective receiver module. There are instructions for changing the programming of most remote keys on YouTube or refer to your owner's manual. You could also try resetting the car's onboard computer by using the OBDII scan tool.

Faulty Receiver Module

The key fob contains the chip that communicates with the car's system. If the chip is damaged, it will no longer send and receive signals to the vehicle. A key fob falling off can cause this, as can exposure to water. If the key fob has stopped working after water exposure it could be possible to fix the issue by cleaning the chip with isopropyl alcohol, or electronic cleaner.

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 damaged receiver can cause the key to not work. This is usually due to electromagnetic interference.

Faulty Electronic Chip

The electronic chip in the key fob is a vital component of the anti-theft system in your vehicle. It transmits a signal to the immobiliser unit in the vehicle to determine whether the key is valid. Your car will not start when the chip is damaged.

A faulty chip may also be caused by interference from other objects, weather conditions or transmitters close to your vehicle. In this situation an upgrade to the fob will be needed.

Contacts with the battery may be damaged.

The battery contacts on the fob's key can be damaged due to heavy use. If they're bent, or broken, the fob won't send any signals to the receiver modules inside the vehicle.

Modern fobs are made with rubber seals to keep out water. A splash of water or a light rain is fine but submerging them into saltwater can damage the chip's electronic components.

The key fob houses a chip that communicates with the vehicle's immobilizer system in order to start it. This system utilizes cryptocoding systems in newer vehicles, or the old red key system in older ones. If the chip is defective it must be replaced.

A faulty 12 Volt battery

A malfunctioning battery could cause the remote to cease working. When this occurs the car's computer will not be able to recognize that the remote is in the vehicle.

Before you replace the battery, test it using a an voltmeter to gauge its capacity. A fully charged battery should read 12.6 volts. If the reading falls dramatically then it's time to replace the battery.

Put an electrical load for a few seconds on the battery to determine its capacity. This will take away 1percent of the surface charges. Then, you can measure the voltage. The higher the capacity of the battery and the longer it can maintain its voltage. Ideal is to hold close to 12 volts for several minutes.

Problems with Radio Signal

This is the main reason for a key fob that stops sending signals to the car. This problem can be solved by replacing the battery. It is important to buy batteries that have the same dimensions and voltage as the original.

Fobs aren't impervious to damage and can withstand a lot. Contacts on batteries and buttons can be damaged through rough handling.

Other objects or transmitters using the same frequency could also disrupt a signal. A light-control panel at your home, for instance can interfere with key fobs using the same frequency. This could cause interference with the remote control of your car.

The tool is not working properly. OBDII scan tool

There are a number of reasons why a scan tool could not work. Some are more complicated than others.

Professional scan tools permit mechanics to observe the car's networks and perform a variety of self-tests. These can be real time savers, however they can be expensive, and out of the budget of most DIYers.

If your OBD2 scan tool won't power on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If these are OK it's likely that a fuse has been blown. This is the most typical reason for failure of the scan tool. The easiest fix is to replace the fuse that is blowing up.