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fiat car key Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder that sends an indication from the fob to the car to unlock doors or turn on the motor. However, the key fob may not function due to a variety of reasons.

A dead coin battery is the most common cause of malfunctioning keys. Other causes are water damage, the receiver module is defective and signal interference.

Dead Coin Battery

If your key fob's battery has gone out of service, the first thing to do is replace it. Make use of a new button battery with the same voltage, size and specifications like the previous one.

If the key fob has been exposed to water, like a splash of rain or salt water at the beach, it needs to be cleaned before it can be used again. The best way to do this is using a paper towel soaked with isopropyl or an electronic cleaner.

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

Water Damage

If your key fob has gotten a bath in the puddle or pool or even a trip through the washing machine, you could be suffering some water damage. You can usually get it back to working by removing the battery and scrubbing the circuit board with isopropyl alcohol. It's best to allow the fob to dry completely before installing a new battery.

If your key fob has stopped working, even after replacing the battery and changing the program, Programmer you could have a problem with the receiver module. You can find the instructions for reprograming the majority of remote keys on YouTube or in your owner's manual. You can also try resetting the car's onboard computer with the OBDII scan tool.

Faulty Receiver Module

The key fob contains a chip that communicates with the vehicle's system. If the chip is damaged, it can no longer transmit or receive signals to the vehicle. The key fob being dropped can cause this, as can exposure to water. If the key fob is not working after water exposure it could be possible to fix it by cleaning the chip using isopropyl alcohol or an electronic cleaner.

However, if the key fob continues to not respond after cleaning it there is a good chance that the component is damaged and will require to be replaced. A malfunctioning receiver could cause the key to not work. This is usually caused by electromagnetic interference.

Faulty Electronic Chip

The chip that is embedded in your key fob is an important component of the anti-theft systems in your vehicle. It transmits a message the immobiliser in your car to tell it whether the key is genuine. Your car will not start when the chip is damaged.

A malfunctioning chip could be caused by interference signals from other objects, bad weather conditions or transmitters operating on the same frequency close to your car. In this case, a new fob will be needed.

Contacts for the battery that are damaged

The battery contacts of the key fob could be damaged by excessive usage. If they're bent, or damaged, the fob will not transmit any signals to receiver modules in the vehicle.

Modern fobs come with rubber seals that keep out water. In the event of submerging them in water, even if it's just an occasional drizzle or splash could harm the chip's electronic circuit.

The key fob has an embedded chip that communicates to the immobilizer system of the vehicle in order to start it. The system uses the old red keys in older vehicles, programmer or the cryptocoding system found in the latest vehicles. If the chip is defective, it will need to be replaced.

A faulty 12 Volt battery

A malfunctioning battery could cause the remote to stop working. When this happens, 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 display 12.6 volts. If the reading drops significantly it is time to replace the battery.

To determine the capacity of a battery test the battery's capacity by placing an electrical load on it for a couple of minutes. This will take off about 1 percent of the charge on the surface. Then measure the voltage again. The longer the battery can keep its voltage steady and the higher its capacity. Ideal is to hold close to 12 volts for several minutes.

Faulty Radio Signal

This is the most frequent reason for the key fob to stop sending signals to cars. This issue can be resolved by replacing the battery. It is however important to select a replacement battery with the same voltage and size as the original one.

Fobs take a lot of abuse, but they're also not impervious to destruction. The battery buttons and contacts are delicate and are susceptible to being bent or damaged from excessive use.

Other objects or transmitters using the same frequency could also disrupt the signal. A light-control panel at your home, for instance can interfere with key fobs that use the same frequency. This could affect the remote control of your car.

Faulty OBDII Scan Tool

There are many reasons why a scan tool might not work. Certain are more complicated than others.

Professional scan tools enable mechanics to monitor the car's network and perform various self-tests. They can be huge time-savers, but they are also extremely expensive, and beyond the reach of most DIYers.

If your OBD2 scanner won't turn on, check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If these are both present it's possible that a fuse has failed. This is one of the most common causes of a scan tool failing. The easiest solution is to replace the fuse that is blowing up.