Fiat Panda Key Fob replacement key for fiat ducato van

Fiat Panda key fobs contain an transponder chip that transmits a signal to your car to open the doors or start the engine. However, the fob can stop working for several reasons.

The most common reason for key fob malfunction is an inoperable coin battery. Other causes include water damage, an inoperative receiver module and signal interference.

Dead Coin Battery

If your key fob battery is dead, the first step is to replace it. Make use of a new button battery with the same size, voltage, and specification as the previous one.

If the key fob was exposed to water (such as saltwater or rain at the beach), it must be cleaned before using again. The best method is to use the paper towel and soak it in isopropyl or an electronic cleaner.

If the key fob hasn't been exposed to water, but it is still not working it could be a problem with the receiver module or an internal electronic chip. In these cases you can reprogramme the key fob with an OBDII scanner might aid.

Water Damage

If your key fob has taken a bath in the puddle or pool or even a trip down the wash machine, it could have some water damage. It's generally possible to repair it by taking the batteries off and cleaning the circuit board using ruby alcohol. It's a good idea to allow the fob to dry completely before putting in a new battery.

There could be a problem with the module when your key fob ceases working after replacing the battery or changing the programming. You can find instructions for changing the programming of most remote keys on YouTube or in your owner's manual. You can also reset the car's computer using the OBDII scanner tool.

Faulty Receiver Module

The key fob contains a chip that connects to the car's system. This chip will stop sending and receiving signals to the car when it is damaged. A key fob falling off can cause this, as could exposure to water. If the key fob you have purchased has stopped functioning due to water exposure, you may be able fix the issue if you clean the chip with electronic cleaner or isopropyl ethanol.

However, if the key fob is still unable to not respond even after cleaning it you can be sure that the component is damaged and needs to be replaced. A damaged receiver module may also cause the remote control key to stop functioning. This is often caused by electromagnetic interference.

Faulty Electronic Chip

The chip inside your key fob plays an important part in the anti-theft security system of your car. It sends out a signal the immobiliser unit in your car to determine whether the key is legitimate. The car will not start in the event that the chip is damaged.

A faulty chip can also be caused by interference signals from objects such as weather conditions, objects or transmitters on the same frequency as your car. In this situation the replacement fob will be needed.

Contacts to the battery are not working properly.

The battery contacts on the key fob are delicate and could be damaged by repeated use. If they're bent or broken, the fob won't send any signals to the receiver modules in the vehicle.

Modern fobs are made with rubber seals in order to keep out water. Submerging them in water even if it's just an occasional drizzle or splash could damage the chip's electronic circuit.

The key fob has an electronic chip that communicates with the immobilizer system of the vehicle to start it. This system utilizes cryptocoding systems in newer vehicles and the older red key system for older models. If the chip is damaged it must be replaced.

Problematic 12 Volt Battery

A malfunctioning battery could cause the key fob to work. If this happens, the car's computer system will not recognize that the remote is inside the vehicle.

Before replacing the battery, you should test it with a an voltmeter for determining its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly it is time to replace the battery.

To determine the capacity of a battery to determine its capacity, put an electric load on it for a couple of minutes. This will eliminate 1percent of the surface charges. Then, measure the voltage once more. The longer the battery is able to hold its voltage, the better its capacity. Ideally, it will remain close to 12 volts several minutes.

Problems with Radio Signal

This is the main reason for a key fob that ceases to send signals to the car. This problem can be solved by replacing the battery. It is essential to purchase an identical battery voltage and dimensions as the original.

Fobs are not indestructible and can be damaged by a lot. The battery contacts and buttons could be damaged through rough handling.

The signal could also be disrupted by other transmitters or objects which use the same frequency. For instance, key fob battery a light control panel in your home could transmit interference on the same frequency that key fobs utilize. This can interfere with the remote control in your car.

The tool is not working properly. OBDII scan tool

There are a number of reasons why a scan tool may not work. Some are more complex than others.

Professional scan tools let mechanics to look over the car's network, and run various self-tests. They can be huge time savers, however they are also extremely expensive, and beyond the budget of most DIYers.

If your OBD2 scanner isn't turning on, check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If they are all OK, a fuse may have ruptured. This is among the most frequent causes of failures in the scan tool. It is often simple to fix the issue by replacing the blown fuse.