Fiat Panda Key Fob Replacement

fiat keys Panda key fobs contain an transponder chip that transmits a signal to your car to unlock the doors or start the engine. The fob may stop working due to a variety reasons.

The most frequent cause of key fob malfunction is an inoperable coin battery. Other causes include water damage or a malfunctioning module and interference signals.

Dead Coin Battery

If your key fob battery is dead, the first thing to do is replace it. Choose a new button battery that is identical in size, voltage and specification as the original.

If the key fob was exposed to water (such as rain or saltwater at the beach) it should be cleaned before being used again. The best way to do this is using a paper towel soaked with isopropyl or electronic cleaner.

If the key fob isn't working despite not being exposed water, it could be due to a glitch in the receiver module, or even in the internal electronic chip. In these situations you can reprogramme the key fob using an OBDII scanner may aid.

Water Damage

If your key fob's battery has taken an immersion in the puddle or pool or *Add to Favorites walked to the washing machine, you may have some water damage. It is usually possible to get it back in working order by taking out the batteries and cleaning the circuit board with rubbing alcohol. It's a good idea let the fob dry completely prior to installing a new battery.

If your key fob stopped working, even after replacing the battery and reprogramming it, you may have a faulty receiver module. There are reprogramming guidelines for Fiat remote key most vehicles' remote key fobs on YouTube or in the owner's guide. You could also try resetting the car's onboard computer using the OBDII scan tool.

Faulty Receiver Module

The key fob has the chip that communicates the vehicle's system. If this chip becomes damaged, it cannot longer be able to send or receive signals to the vehicle. Dropping the key fob could cause this, as well as water exposure. If your key fob has stopped functioning due to water exposure it is possible fix the issue if you clean the chip with electronic cleaner or isopropyl ethanol.

If the key fob continues to not respond even after cleaning it then it is likely that the receiver module is not functioning properly and needs to be replaced. A defective receiver can cause the key to not work. This is usually caused by electromagnetic interference.

Faulty Electronic Chip

The electronic chip that is in your key fob plays an important role in the anti-theft security system of your car. It sends a message to the immobiliser inside your car to inform it that the key is valid. If the chip is damaged or broken, your car won't start.

A damaged chip could be caused by interference caused by objects, bad weather or transmitters close to your vehicle. In this situation, you will need an entirely new key fob.

Contacts to the battery are not working properly.

The battery contacts in a key fob are very delicate and can get damaged through repeated use. If they're bent, or damaged, the fob will not send any signals to receiver modules inside the vehicle.

Modern fobs are constructed with rubber seals to keep out water. A splash of water or light rain should be fine, but submerging them in saltwater can damage the chip's electronic components.

The key fob has chip that communicates with the immobilizer system of the vehicle in order to start it. This system makes use of cryptocoding systems in newer vehicles and the older red key system for older models. This chip will need to be replaced if malfunctioning.

Problematic 12 Volt Battery

A defective battery can cause the key fob to stop working. When this occurs the car's computer won't recognize that the remote is inside the vehicle.

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

Put an electrical load for a few moments on the battery to test its capacity. This will eliminate 1percent of the surface charges. Then, test the voltage once more. The better the battery's capacity, the longer it can maintain its voltage. The ideal scenario is to keep it at 12 volts or less for several minutes.

Radio Signal Faulty Radio Signal

This is the main reason for a keyfob that stops sending signals to the car. The battery can be replaced to solve this problem. It is essential to purchase batteries that have the same voltage and dimensions as the original.

Fobs endure a lot of punishment, and aren't impervious to destruction. The battery buttons and the contacts are fragile and can be bent or broken by rough usage.

The signal could also be interrupted by other transmitters or objects who use the same frequency. For instance, a lighting control panel in your home could transmit interference on the same frequency as key fobs utilize. This can interfere with your car's remote control.

Afflicted OBDII Scan Tool

There are a variety of reasons why scanner tools may not perform. Certain are more complicated than others.

Professional scan tools allow mechanics to observe the car's networks and conduct a variety self-tests. They can be huge time savers, however they're also expensive, out of the reach of most DIYers.

If your OBD2 scan tool isn't turning on, make sure you check the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they're both in good shape it's likely that a fuse has blown. This is the main cause of scan tool failure. The easiest solution is to replace the blown fuse.