Reasons Your Fiat Key Programmer 500 Key Fob Won't Work

A key fob for the fiat spare key 500 is a convenient method to open the doors and start the car. However, there are many reasons the fob could stop functioning. It could be due to a dead battery damage to the receiver module, water issues, and interfering.

This listing is for a NEW replacement Fiat Flip Key Remote that looks like the Ilco brand. It must be professionally programmed (click here to find local locksmiths for your vehicle). It includes lock, unlock and trunk buttons.

Dead Coin Battery

The most common reason your 500 key fob will not work is an inactive battery. Modern key fobs operate with a restricted operating range, and must be within a few feet of the car to operate. If you're far from your vehicle and press the key fob button the car will not respond, and will display an "Key Fob Not Detected" message in the instrument cluster.

If this happens, replace the battery in the coin cell (Part number CR2032) by a new one from a reputable brand such as Panasonic, Duracell, or Energizer. You can usually find them at your local hardware store or online.

You can test the battery on your coin-cell by pressing the buttons while you're standing close to your Fiat 500. The car should flash its parking lights and the key fob should operate the lock and unlock buttons.

If your fob's key isn't working even after replacing the battery, there may be water damage that prevents it from connecting to the module in your vehicle. Water damage can occur in a number of ways, from the slightest splash to submerging your fob in salt water at the beach. If you suspect your fob was exposed to water, put it in a dry rice bag to draw the moisture back out. If this doesn't work, you will have to get your fob reprogrammed either by an auto locksmith or dealer.

Water Damage

While the fob has some rubber seals that keep water from the chip's electronic circuit it, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater poses a particular risk to the circuit board of the fob and can cause it to short out and eventually end up dying. The fob getting wet is not an ideal choice but if you drop it into a cup of water or forget to remove it from your pants pocket prior to running the washer Don't give up hope.

First, remove the battery. Clean the electronic chip using isopropyl alcohol or a similar product and dry it thoroughly before replacing the battery. Next test the fob to see if it works. If the key still doesn't work, it may have to be reset. This is typically done by a dealer or professional auto locksmith.

If the key is a newer model and has not been programmed to your car it is likely to need to be replaced completely. This is a straightforward process that can be carried out by a professional locksmith for automotive use. The locksmith must cut the key to match the ignition of your vehicle. They'll also have to reprogram the fob to your vehiclied every option at home to solve it e.g. It could be a defective 500 receiver module If you've tried replacing it with a battery, reprogramming or using a spare key fob. The receiver module, which is located under the dashboard, is able to pick up radio frequency signals from your key fob. It converts the signals into electronic commands that are then read by the vehicle.

Luckily, there is an easy way to reset all on-board systems in your 500, including the key fob. Disconnect the battery of 12 volts for about 15 minutes by removing the negative cable first then the positive cable. Reconnect the battery. This will remove any remaining electricity, and allow you to restart the car's computer. This could help you get your key fob working again. If the issue continues you should speak with an experienced technician. They will be able to identify the exact cause of issues.