Fiat Panda Key Fob replacement key for fiat ducato van

Fiat Panda keyfobs are equipped with a transponder that transmits a signal from the fob to the car that allows it to unlock doors or start the motor. The fob can stop functioning for a variety.

A dead coin battery is the most frequent cause of malfunctioning keys. Other causes include water damage, an inoperative receiver module and signal interference.

Dead Coin Battery

If your key fob's battery is dead, the first thing to do is replace it. Use a button cell that has the same voltage, size, and specifications as the old one.

If the key fob was exposed to water, such as a splash of rain or salt water at the beach, it will need to be cleaned before it can be used again. The best way to do this is using an old towel soaked in isopropyl, or electronic cleaner.

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

Water Damage

If your key fob has taken submerged in a pool or puddle or walked down the washing machine, you might have some water damage. It is usually possible to get it back to working by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It is a good idea to allow the fob to dry completely before installing a new battery.

If your key fob stopped working even after replacing the battery and reprogramming it, you may 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 contains a chip which communicates with the vehicle's system. If this chip becomes damaged, it cannot longer send and receive signals to the vehicle. Dropping the key fob could cause this, as could exposure to water. If the key fob stops working after exposure to water it could be possible to fix it by cleaning the chip using isopropyl ethanol or electronic cleaner.

If the key fob continues to not respond even after cleaning it there is a good chance that the module is faulty and must be replaced. A faulty receiver can also cause the key to stop working. This is usually due to electromagnetic interference.

Faulty electronic chip

The chip that is embedded in your key fob is a vital component of the anti-theft systems in your vehicle. It sends a signal the immobiliser unit inside your car to determine whether the key is genuine. If the chip is damaged or broken, your 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 near your car. In this case, a new fob will be required.

Contacts of the battery may be damaged.

The battery contacts inside a key fob are very fragile and are susceptible to damage with hard usage. If they are bent or broken the fob will not send any signals to the receiver modules in the car.

Modern fobs come with rubber seals that block out water. Submerging them in water even if just a light drizzle or splash could damage the chip's electronic circuit.

The key fob contains an electronic chip that communicates with the vehicle's immobilizer system in order to begin it. The system relies on cryptocoding systems in the latest vehicles or the red key system for older models. This chip will need to be replaced if defective.

Faulty 12 Volt Batterie

A faulty battery may cause the key fob not to work. The car's computer may not recognize the remote if 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 drops significantly, it is time to replace the battery.

Set an electrical load for a short time on the battery to check its capacity. This will remove about 1 percent of the surface charge. Then, you can measure the voltage. The greater the battery's capacity and the longer it can keep its voltage. The ideal is to keep it close to 12 volts during several minutes.

The radio signal is not working properly. Radio Signal

This is the most common reason for a key fob to stop sending signals to cars. The battery can be replaced to solve this issue. It is essential to purchase a battery with the same voltage and dimensions as the original.

Fobs are not indestructible and can take a lot. The battery buttons and the contacts are fragile and are susceptible to being bent or broken with excessive use.

A signal can also be interrupted by other transmitters or objects who use the same frequency. A light control panel in your home, for example, may interfere with key fobs which use the same bandwidth. This could interfere with your car's remote control.

Faulty OBDII Scan Tool

There are many reasons scanners may not work. Some are more complicated than others.

Professional scan tools let mechanics to monitor the car's network and perform various self-tests. These are real time savers but they're also expensive, and out of the budget of many DIYers.

If your OBD2 scanner won't turn on make sure you check the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If they are all OK there is a chance that a fuse has blown. This is the most common reason for failures of the scanner. The most straightforward fix is to replace the blown fuse.