Reasons Your Fiat 500 Key Fob Won’t Work
A Fiat 500 key fob makes it easy to open doors and start your car. There are a myriad of reasons the fob could stop working. This could be due to a dead battery and water damage, as well as problems with receiver modules, as well as interference.
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Dead Coin Battery
The most frequent reason why your 500 key fob doesn’t function is an inactive battery. Modern key fobs operate with a limited range of operation, and should be within just a few feet of the vehicle in order to function. If you are far from your vehicle, and you hit the keyfob, it will not respond, and display the message “Key Fob Not Detected”.
If this occurs then replace the battery for your coin-cell (Part Number CR2032) by a new one of a reputable brand such as Panasonic Duracell or Energizer. They are usually available at your local hardware store, or online.
You can test the battery of your coin-cell by pressing the buttons while you’re standing close to your fiat car key cutting 500. The car will blink its parking lights and the key fob should work the lock and unlock buttons.
If the key fob won’t work after replacing the battery, it may have water damage that stops it from connecting to the receiver module inside your vehicle. Water damage can happen in a number of ways, ranging from a light splash to submerging your fob in salt water at the beach. If you suspect that your fob has been exposed to water, you can try placing it in a dry rice bag to draw the moisture out. If this fails, you’ll need to have the fob reset by an auto locksmith or a dealer.
Water Damage
While the fob has some rubber seals that keep water out of the chip’s electronic circuit and out of the ocean or washing it in a machine could cause water damage. Saltwater is particularly dangerous to the fob’s circuit board, causing it to short out and eventually end up dying. It’s not the best idea to submerge the fob in water but don’t give up when you accidentally drop it in water, or fail to take it out of your pants pocket.
First, remove the battery from the fob. Clean the electronic chip with isopropyl alcohol or another similar product and then dry it completely before replacing the battery. Check the fob again to determine if it’s working. If the key still doesn’t work, it might need to be changed. This is usually done by an auto locksmith or dealer.
If the key is older and hasn’t been programmed to your vehicle It will most likely need to be replaced completely. A professional automotive locksmith can complete this simple process. The locksmith will need the key cut to match your vehicle’s ignition. The locksmith also needs to program your fob into the vehicle’s system. This is an affordable and fast process that can be completed within the same day.
Receiver Module Issues
Your 500 key fob may not work because it’s out of range. The remote typically has a range of 30 feet or Replacement Fiat Punto Keys Nottingham less and if it’s far from your vehicle, it will not respond to your commands. This can easily be resolved by moving closer to your vehicle until it begins responding.
If your fob isn’t working after replacing the coin battery, also known as a “button”, “watch” or “button” it could be a problem with the circuit board inside. Reprogramming the fob usually resolves the issue. You can find instructions on how to do this for the majority of vehicles by searching YouTube or checking out the owner’s manual.
It could be necessary to replace the clips made of metal that hold the coin batteries in place. If they become loose, it can stop your coin battery from sitting properly, causing your remote to malfunction.
In rare cases the fob can become out of connection with your vehicle as a result of software or hardware problems. This can be a major issue, but you are able to often fix this by visiting an auto locksmith to have them reprogram your fob for you. In certain situations they may have to install the software again in your body control module as well.
Interference
Interference can also cause the key fob to not receive or transmit an signal. This may happen if the keyfob is in close proximity to a radio transmitter, like a cell phone or radar detector. The key fob may not function because of a problem with the buttons water damage or damage to the internal chips.
If your key fob suddenly stopped working, or if you’ve tried everything at home to solve the issue (e.g. replacing the battery, reprogramming it and using the spare key fob, you may have a defective receiver module on your 500. The receiver module is located under the dash and picks up the radio frequency signals from the key fob. It converts them into electronic commands that the vehicle interprets.
Luckily, there is an easy way to reset all of the onboard systems in your 500, including the key fob. Disconnect the battery 12 volt for approximately 15 minutes by removing the negative cable and then the positive cable. Then, reconnect the battery. This will remove any remaining electricity, and allow you to restart the car’s computer. This can help get your key fob working again. If the problem persists, you should consult an expert technician. They will be able to identify the root cause of any issues.