Fiat Panda Key Fob Replacement

fiat multipla key Panda keyfobs are equipped with a transponder which transmits an electronic signal from the fob to the car to unlock doors or turn on the motor. However, the key fob may stop working due to a variety of causes.

A dead coin battery is the most frequent cause of the malfunction of a key fob. Other causes include water damage, the receiver module is defective and signal interference.

Dead Coin Battery

If the battery in your key fob has failed, the initial thing to do is replace it. Choose a new button battery that has the same voltage, size and specifications as the old one.

If the key fob was exposed to water (such as saltwater or rain at the beach) it should be cleaned before using again. A paper towel soaked with isopropyl alcohol or electronic cleaner can do the trick.

If the key fob has not been exposed to water, but still does not work it could be a problem with the receiver module or an internal electronic chip. Reprogramming the keyfob with an OBDII scan may help in these instances.

Water Damage

If your fiat 500 key fob not working fob has gotten an immersion in the puddle or pool, or taken a trip through the washing machine, you could be suffering some water damage. It is usually possible to get it working again by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It's best to allow the device to completely dry before putting in batteries.

If your key fob isn't working, even after replacing the battery and reprogramming it, you may have a faulty receiver module. You can find reprogramming procedures for most vehicles' remote key fobs on YouTube or in your owner's guide. You can also reset the computer of your car using the OBDII scanner tool.

Faulty Receiver Module

The key fob contains the chip that communicates with the car's system. If this chip becomes damaged, it will no longer send and receive signals to the vehicle. This could be due to dropping the key fob, or due to exposure to water. If the key fob stops working after exposure to water, it is possible to fix it by cleaning the chip with isopropyl alcohol or electronic cleaner.

However, if the key fob is still unable to not respond after cleaning it, there is a good chance that the module is defective and will require to be replaced. A faulty receiver can also cause the key to cease to function. This is often caused by electromagnetic interference.

Faulty electronic chip

The electronic chip in your key fob plays an important role in the anti-theft system of your vehicle. It transmits a message the immobiliser inside your fiat car key replacement to tell it whether the key is legitimate. If the chip is damaged or broken, the car will not start.

A defective chip can be caused by interference signals from objects, bad weather conditions or transmitters operating on the same frequency in close proximity to your car. In this situation you'll need a new key fob.

Faulty battery contacts

The battery contacts of the fob's battery can be damaged through heavy use. If they're damaged or bent, the fob will not transmit any signals to the receiver modules inside the car.

Modern fobs come with rubber seals to keep out water. In the event of submerging them in water, even if it's just the slightest splash or drizzle could damage the chip's electronic components.

The key fob comes with a chip which communicates with the immobilizer system of the vehicle to begin it. The system is based on the red keys of older vehicles, or the crypto coding system in the latest vehicles. If this chip is faulty it will have to be replaced.

A faulty 12 Volt battery

A faulty battery may cause the key fob not to function. The car's computer will not recognize the remote when this occurs.

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

Set an electrical load for a few seconds on the battery to test its capacity. This will eliminate 1% of the surface charges. Then, measure the voltage once more. The greater the battery's capacity, the longer it can keep its voltage. The ideal scenario is to keep it close to 12 volts several minutes.

Faulty Radio Signal

This is the most common reason for a keyfob that stops sending signals to the car. This issue can be fixed by replacing the battery. It is important to buy an identical battery voltage and dimensions as the original.

Fobs aren't impervious to damage and can be damaged by a lot. The battery buttons and contacts are brittle, so they can get bent or broken by rough usage.

A signal may also be disrupted by other transmitters or objects who use the same frequency. For instance, a light control panel that is near your home could send interference over the same frequency that key fobs utilize. This can interfere with the remote control of your car.

Faulty OBDII Scan Tool

There are many reasons a scanner tool may not perform. Certain are more complicated than others.

Professional scan tools enable mechanics to examine the car's systems and run a variety of self-tests. They can be huge time-savers, but they can also be very expensive, and beyond the budget of many DIYers.

If your OBD2 scanner won't start, check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If they're all fine it could be that a fuse has blown. This is the most frequent reason for a scan tool to fail. The most straightforward fix is to replace the blown fuse.