10 Basics Regarding Fiat 500 Keys You Didn't Learn At School Fiat Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder that sends a signal from the fob to the car that allows it to unlock doors or turn on the motor. However, the fob could stop working for several reasons.

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

Dead Coin Battery

If the battery in your key fob has gone out of service, the first thing to do is replace it. Use a brand new button battery with the same voltage, size and specifications as the original.

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

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

Water Damage

You could have water damage to your key fob if it was submerged in a pool, puddle or washing machine. It's generally possible to repair it by getting rid of the batteries and cleaning the circuit board with rubbing alcohol. It's a good idea to allow the fob to dry completely before putting in a new battery.

If your key fob isn't working, even after replacing the battery and programming it again, you might have a defective receiver module. You can find reprogramming instructions for the majority of vehicles' remote key fobs on YouTube or in the owner's manual. You could also try resetting the car's onboard computer using the OBDII scan tool.

Faulty Receiver Module

The key fob has a chip that communicates with the car's system. If this chip becomes damaged, it will no longer be able to send or receive signals to the vehicle. This can be caused by dropping the key fob, or by exposure to water. If the key fob has stopped working after exposure to water, it could be possible to repair it by cleaning the chip using isopropyl alcohol, or electronic cleaner.

If the key fob continues to not respond after cleaning it then it is likely that the component is damaged and will require to be replaced. A damaged receiver module may also cause the remote control key to not function. This usually happens due to electromagnetic interference.

Faulty Electronic Chip

The electronic chip inside your key fob plays an important role in the anti-theft security system of your car. fiat doblo key fob replacement sends a message to the immobiliser in your car to determine whether the key is legitimate. Your car won't start if the chip is damaged.

A damaged chip could be caused by interference from other objects, bad weather or transmitters in the vicinity of your vehicle. In this scenario, you will need an entirely new key fob.

Contacts to the battery are not working properly.

The battery contacts of a key fob are very delicate and may be damaged by repeated use. If they are bent, or damaged, the fob will not send any signals to the receiver modules in the vehicle.

Modern fobs come with rubber seals in order to keep out water. Submerging them in water, even if just small splash or drizzle could damage the chip's electronic components.

The key fob houses the chip that connects to the vehicle's immobilizer system to begin it. This system makes use of cryptocoding systems in vehicles that are more modern, or the old red key system in older ones. This chip will need to be changed if it is damaged.

Problems with 12 Volt Batteries

A damaged battery can cause the remote to cease working. When this happens, the car's computer system will not be able to recognize that the remote is in the vehicle.

Test the battery using the voltmeter before replacing it to determine its capacity. A fully charged battery will display 12.6 volts. If the reading drops dramatically it's time to change it.

Install an electrical charge for a short time on the battery to gauge its capacity. This will eliminate 1percent of the surface charges. Then measure the voltage again. The longer a battery can keep its voltage steady and the higher its capacity. Ideal is that it stays at or near 12 volts for several minutes.

Radio Signal Faulty Radio Signal


This is the main reason for the key fob to stop sending signals to the car. The battery can be replaced to solve this problem. However, it is crucial to purchase a battery that has the same size and voltage as the original one.

Fobs aren't indestructible and can take a lot. Contacts on batteries and buttons can be damaged by rough handling.

The signal could also be impacted by other transmitters or objects who use the same frequency. For instance, a light control panel near your home may transmit interference using the same frequency that key fobs use. This could interfere with the remote control of your car.

Problems with OBDII Scan Tool

There are a variety of reasons why scanners may not work. Certain are more complicated than others.

Professional scan tools let mechanics to observe the car's network and perform various self-tests. These tools can save you a lot of time, but are expensive and not accessible to most DIYers.

If your OBD2 scan tool doesn't turn on, check the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If these are OK, it's likely that a fuse has blown. This is one of the most frequent causes of a scan tool failing. It is typically easy to fix the problem by replacing the fuse that has blown.