Reasons Your Fiat 500 Key Fob Won't Work
A key fob for Fiat 500 allows you to easily open doors and start your car. There are many reasons why the fob won't work. These include a dead battery, damaged receiver module, water damage issues, and interfering.
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Dead Coin Battery
The most frequent reason that the 500 key fob won't function is an inactive battery. Key fobs of today have limited operating range and must be within only a few inches from the vehicle in order to work. If you're far from your vehicle and press the key fob button the car won't respond, and will display a "Key Fob Not Detected" message in the instrument cluster.
If this happens, replace the battery of your coin cell (Part number CR2032) with a new one from a trusted brand like Panasonic, Duracell, or Energizer. They are typically available in your local hardware store or online.
You can test the coin-cell battery by pressing the buttons while standing close to your Fiat 500. The car should blink its parking lights and the key fob should work the lock and unlock switches.
If your fob's key isn't working after replacing the battery, it might be water damage that is preventing it from connecting to the module inside your vehicle. Water damage can occur in many ways, including the simple splash or submerging your key fob in saltwater at the beach. If you suspect that your fob has been exposed to water, put it in a dry rice bag to pull the moisture out. If that doesn't work your fob will probably need to be reset by an experienced auto locksmith or by the dealer.
Water Damage
Water damage can occur if you immerse the fob in the ocean or wash it in a washing machine. Saltwater can cause the circuit board to short, and eventually fail. fiat doblo key 's not a good idea to soak the fob in water, but don't give it up when you accidentally drop it in water, or fail to take it out of your pocket.
First, remove the battery. Before replacing the battery clean the electronic chip using isopropyl, or a similar product. Check the fob again to determine if it's functioning. If the key does not function it could need to be programmed again. This is usually done by an auto locksmith or dealer.
If the key is a newer model and hasn't been programmed to your car it is likely to need to be replaced completely. A professional locksmith for automotive can complete this simple process. The locksmith must cut the key to match the ignition of your car. The locksmith also needs to program your fob into the car's system. This is a quick and inexpensive process that can usually be completed the next day.
Receiver Module Issues
One of the most common reasons why your 500 key fob might stop working is because it's out of range. The remote has a range of 30 feet. Therefore, when you're too far away from your vehicle it will not respond to your commands. It can be solved by moving closer to your vehicle until it starts responding.
If you've replaced your coin battery (commonly known as a "button" or "watch") and the fob won't work It could be because of an internal circuit board problem. Reprogramming the fob is usually the solution to the issue. You can find directions on how to do this for all vehicles by searching YouTube or reading the owner's manual.
You may need to replace the metal clips that hold the coin battery. If they loose tension, it can stop your coin battery from sitting properly and cause your remote to malfunction.
In rare cases the fob could be out of sync with your vehicle because of software or hardware problems. This issue can be fixed by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain situations it may be necessary to reinstall the software in your body control module, too.
Interference
In addition to a dead battery on a coin, the key fob may not be able to transmit or receive signals due to interference. This could occur if the keyfob is located in close proximity to a radio transmitter, such as a cell phone or radar detector. The key fob might not function due to a poor connection to the buttons or water damage, or damage to the internal chips.
If the key fob failed to work one day in the middle of the night, or after trying everything you can at home to resolve it e.g. It could be a defective 500 receiver module if you've tried replacing the battery, reprogramming it, or using an alternative key fob. The receiver module is located under the dash and picks up the radio frequency signals from the key fob. It then converts them into electronic commands that the vehicle interprets.
There's a quick and easy way to reset the 500's on-board system, including the keyfob. Disconnect the battery for 15 minutes by taking off first the negative cable and then the positive cable. Then, reconnect the battery. This will eliminate any remaining electrical charge and restart the car's computer system, which can help get your key fob working again. If the problem persists you should consult an expert technician. They will be able to determine the exact cause of your problems.