fiat doblo key fob replacement Panda Key Fob replacement key for fiat 500

fiat 500 Replacement key Panda keyfobs are equipped with a transponder, which sends a signal from the fob to the car to unlock doors or turn on the motor. The fob may stop working due to a variety of reasons.

A dead coin battery is the most common cause of key fob malfunctions. Other causes include water damage or a damaged module and interference signals.

Dead Coin Battery

If your key fob's battery has died, the first step is to replace it. Use a new button cell battery with the same voltage, size and specification like the previous one.

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

If the key fob is not working even though it is not exposed to water it could be due a malfunction in the receiver module or an internal electronic chip. Reprogramming the keyfob with an OBDII scan could assist in these situations.

Water Damage

If your key fob has taken submerged in a pool or puddle, or taken a trip down the wash machine, you might have some water damage. It is usually possible to fix it by taking out the batteries and cleaning the circuit board using ruby alcohol. It's a good idea allow the fob to dry completely before putting in a brand new battery.

If your key fob isn't working even after replacing the battery and changing the program, you could have a problem with the receiver module. Reprogramming instructions are available for most vehicles' remote key fobs on YouTube or in the owner's manual. You can also try resetting the car's onboard computer with the OBDII scan tool.

Faulty Receiver Module

The key fob's chip is the chip that communicates with the car's system. The chip will stop sending and receiving signals to the car if it becomes damaged. This could be due to dropping the key fob, or due to exposure to water. If the key fob you have purchased has stopped working due to exposure to water, you may be able to fix it if you clean the chip using electronic cleaner or isopropyl ethanol.

If the key fob is still unable to not respond after cleaning it then it is likely that the module is faulty and will require to be replaced. A malfunctioning receiver module could also cause the remote control key to stop working. This is usually due to electromagnetic interference.

Electronic chip that is malfunctioning

The electronic chip in your key fob plays a vital role in the anti-theft system of your car. It sends a signal to the immobiliser unit of your vehicle to tell it whether the key is in fact valid. Your car will not start in the event that the chip has been damaged.

A faulty chip may also be caused by interference caused by objects, bad weather or transmitters near your vehicle. In this situation an upgrade to the fob will be needed.

Contacts with the battery may be damaged.

The battery contacts in a key fob are very delicate and may be damaged when used for long periods of time. If they're bent, or damaged, the fob will not send any signals to the receiver modules inside the vehicle.

Modern fobs are designed with rubber seals to keep out water. A splash of water or light rain is acceptable However, submerging them in salt water could harm the chip's electronic components.

The key fob is equipped with chip that communicates with the immobilizer system of the vehicle to start it. It uses the old red keys that were used in older vehicles as well as the cryptocoding system that is used in newer cars. This chip will need to be replaced if defective.

Problems with 12 Volt Batteries

A damaged battery can cause the key fob to stop working. The car's computer may not recognize the remote if this happens.

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

Put an electrical load for a few seconds on the battery to test its capacity. This will take away 1percent of the charges. Then, test the voltage once more. The longer the battery is able to keep its voltage steady, the better its capacity. Ideally, it will remain close to 12 volts several minutes.

Problems with Radio Signal

This is the most frequent reason for the key fob not sending signals to vehicles. The battery can be replaced to fix this issue. But, it is essential to buy a new battery that has the same voltage and size as the original.

Fobs take a lot of abuse, but they're not indestructible. The battery buttons and contacts are brittle, so they can get bent or broken by excessive use.

The signal could also be disrupted by other objects or transmitters which use the same frequency. A light control panel in your home, for instance could interfere with key fobs using the same frequency. This could affect the remote control of your car.

Afflicted OBDII Scan Tool

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

Professional scan tools enable mechanics to look over the car's network, and run various self-tests. These tools can save a lot of time, but they're expensive and out of reach for most DIYers.

If your OBD2 scan tool doesn't turn on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition it could be that a fuse has ruptured. This is the main reason for failures of the scanner. It is generally easy to fix the problem by replacing the fuse that was blown.