fiat ducato replacement key Panda Key Fob replacement fiat 500 key fob

Fiat Panda keyfobs are equipped with a transponder that sends signals from the fob to the car to unlock doors or turn on the motor. The fob may stop working for a variety of reasons.

A dead coin battery is the most common reason for a key fob malfunction. Other causes are water damage or a malfunctioning module and interference signals.

Dead Coin Battery

If your key fob battery has failed, the initial step is to replace it. Use a button cell that has the same voltage, size, and specifications as the old one.

If the key fob was exposed to water (such as rain or saltwater at the beach) it must be cleaned before being used again. A paper towel soaked in isopropyl alcohol or electronic cleaner will work wonders.

If the key fob is not working despite being not exposed to water it could be due to a malfunction in the receiver module or an internal electronic chip. Reprogramming the keyfob using an OBDII scan can help in these cases.

Water Damage

If your key fob has taken submerged in a puddle or pool or walked to the washing machine, you might have some water damage. It's possible to get it working by getting rid of the batteries and cleaning the circuit board with ruby alcohol. It's a good idea allow the fob to dry completely before installing a new battery.

It could be that you have a defective module in the event that your key fob stops working after replacing the battery or updating. You can find instructions for reprograming the majority of remote keys on YouTube or in your owner's manual. You can also reset your car's computer using the OBDII scanner tool.

Faulty Receiver Module

The key fob's chip is the chip that communicates with the car's system. This chip will stop sending and receiving signals to the car when it is damaged. Dropping the key fob can cause this, as can water exposure. If the key fob stops functioning after exposure to water, it may be possible to repair it by cleaning the chip with isopropyl alcohol or an electronic cleaner.

However, if the key fob continues to not respond after cleaning it you can be sure that the component is damaged and must be replaced. A damaged receiver can cause the key to stop working. This is usually due to electromagnetic interference.

Faulty electronic chip

The electronic chip inside your key fob plays an important role in the anti-theft system in your car. It transmits a signal to the immobiliser unit of the vehicle to determine whether or not the key is in fact valid. The car won't start in the event that the chip is damaged.

A faulty chip may also be caused by interference from other objects, weather conditions or transmitters located near your vehicle. In this situation, a new fob will be needed.

Contacts to the battery are not working properly.

The battery contacts inside a key fob are very delicate and may be damaged with hard usage. If they are damaged or bent, the fob will not be able to send any signals to the receiver modules inside the car.

Modern fobs are constructed with rubber seals in order to keep out water. A splash of water or light rain should be fine However, submerging them in salt water could damage the electronic chip.

The key fob contains a chip that communicates with the vehicle's immobilizer system to allow it to start. This system utilizes cryptocoding systems in newer vehicles or the red key system for older models. If the chip is defective it will have to be replaced.

A faulty 12 Volt battery

A faulty battery can cause the remote to cease to function. When this occurs, the car's computer system cannot recognize that the remote is in the vehicle.

Test the battery with an voltmeter prior to replacing it to determine its capacity. A fully charged battery should read 12.6 volts. If the reading falls significantly it is time to replace the battery.

To test the battery's capacity, place an electrical load on it for a couple of minutes. This will eliminate 1percent of the charges. Then, you can measure the voltage. The longer the battery can hold its voltage, the better its capacity. Ideal is to hold at or near by 12 volts for several minutes.

Radio Signal Faulty Radio Signal

This is the main reason behind a key fob that ceases to send signals to the car. The battery can be replaced to solve this issue. However, it is important to select a replacement battery that is the same voltage and size as the original.

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

Other transmitters or objects using the same frequency can also interfere with the signal. A light control panel in your home, for example, may interfere with key fobs using the same bandwidth. This can interfere with the remote control of your car.

Faulty OBDII Scan Tool

There are a variety of reasons why scanners don't function. Some are more complex than others.

Professional scan tools enable mechanics to examine the car's systems and conduct a variety self-tests. These tools can help save time, but they're expensive and are out of reach for the majority of DIYers.

If your OBD2 scanner won't turn on Check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If both are in good condition there is a chance that a fuse has been blown. This is one of the most common causes of scan tool failure. The easiest fix is to replace the blown fuse.