10 Things We All Love About Fiat 500 Keys
fiat 500 replacement key near me contain an transponder chip that transmits a signal to your car to open the doors or start the engine. The fob could stop working for a variety.
The most common cause of key fob failure is the battery of the coin is dead. Other causes are water damage, a faulty receiver module, and signal interference.
Dead Coin Battery
If your key fob battery has died, the first step is to replace it. Choose a button battery with the same voltage, size and specifications as the previous one.
If the key fob has been exposed to water, such as a splash of rain or salt water on the beach, it's going to need to be cleaned before it can be used again. The best way to do this is using an old towel soaked in isopropyl or an electronic cleaner.
If the key fob isn't working even though it is not exposed to water, it could be due to a glitch in the receiver module, or even in the internal electronic chip. In these cases, reprogramming the key fob using an OBDII scanner could assist.
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 restore it's functionality by removing the battery and scrubbing the circuit board with isopropyl alcohol. It's a good idea allow the fob to dry completely before installing a new battery.
If your key fob stopped working, even after replacing the battery and reprogramming it, you may have a defective receiver module. Reprogramming instructions are available for all vehicles' remote key fobs on YouTube or in the owner's manual. You can also reset your computer of your car using the OBDII scanner tool.
Faulty Receiver Module
The key fob has a chip that communicates with the vehicle's system. If this chip becomes damaged, it will be unable to longer be able to send or receive signals to the vehicle. This can be caused by dropping the key fob, or by water exposure. If the key fob you have purchased has stopped working due to water exposure and you are unable to fix it if you clean the chip with electronic cleaner or isopropyl ethanol.
If the key fob is still unable to not respond after cleaning it it is likely that the module is defective and must be replaced. A damaged receiver module may also cause the remote control key to not function. This is usually caused by electromagnetic interference.
Faulty Electronic Chip
The electronic chip in the key fob is a crucial component of the anti-theft systems in your car. It sends a signal to the immobiliser unit in your vehicle to tell it whether or not the key is genuine. If the chip is damaged or broken, your vehicle will not start.
A faulty chip can also be caused by interference signals from other objects like bad weather conditions or transmitters on the same frequency near your car. In this instance you'll need an entirely new key fob.
Contacts for the battery that are defective
The battery contacts in a key fob are very delicate and could be damaged when used for long periods of time. If they are bent or broken the fob will not be able to send any signals to the receiver modules in the car.
Modern fobs are constructed with rubber seals that keep out water. Immersing them in water, even if it's only small splash or drizzle could harm the electronic chip.
The key fob houses a chip that communicates with the vehicle's immobilizer system to begin it. This system uses crypto coding systems in vehicles that are more modern and the older red key system for older ones. This chip will need to be changed if it is faulty.
The 12 Volt Battery is faulty
A malfunctioning battery could cause the key fob to function. The car's computer may not recognize the remote when this happens.
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 decreases significantly then it's time to replace the battery.
To determine the capacity of a battery to determine its capacity, put an electric load on it for a few minutes. This will remove approximately 1 percent of the charge on the surface. Then measure the voltage again. The greater the battery's capacity is, the longer it will maintain its voltage. Ideal is that it stays close to 12 volts over several minutes.
Faulty Radio Signal
This is the most typical reason for keys not sending signals to vehicles. The battery can be replaced to solve this problem. However, it is important to purchase a battery with the same size and voltage as the original.
Fobs aren't indestructible and can take a lot. Battery contacts and buttons can be damaged through rough handling.
The signal could also be disrupted by other objects or transmitters that operate on the same frequency. For example, a light-control panel close to your home can transmit interference using the same bandwidth that key fobs use. This could affect the remote control in your car.
Faulty OBDII Scan Tool
There are a number of reasons why a scanner may not work. Some are more complex than others.
Professional scan tools allow mechanics to monitor the car's network and conduct a variety self-tests. These are great time savers, but they can also be very expensive, out of the range of most DIYers.
If your OBD2 scanner won't turn on, check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If they're all fine the fuse could have been blown. This is the most typical reason for failure of the scan tool. The easiest solution is to replace the fuse which has blown.