Fiat Panda Key Fob Replacement

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

The most common reason for key fob failure is a dead coin battery. Other causes include water damage the receiver module is defective and signal interference.

Dead Coin Battery

Replace the battery if the key fob has gone out of service. Make use of a button cell battery that has the same voltage, size, and specifications as your previous one.

If the key fob was exposed to water, like a splash of rain or salt water on the beach, it needs to be cleaned before it is able to be used again. The trick is to use a paper towel soaked with isopropyl, or electronic cleaner.

If the key fob hasn't been exposed to water, but still does not work it could be because of a problem with the receiver module or an internal electronic chip. In these instances it is possible to re-programme the key fob with an OBDII scanner can aid.

Water Damage

If your key fob has taken submerged in a puddle or pool or even a trip down the washing machine, you may have some water damage. It's generally possible to repair it by taking out the batteries and cleaning the circuit board using rubbing alcohol. It's best to allow the fob to dry completely before putting in a brand new battery.

You could have a damaged module in the event that your key fob stops working after replacing the battery or updating. You can find reprogramming procedures for all vehicles' remote key fobs on YouTube or in the owner's guide. You can also reset the computer in your car with the OBDII scanner tool.

Faulty Receiver Module

The key fob is equipped with a chip that communicates with the vehicle's system. The chip will stop sending and receiving signals to the car if it becomes damaged. This can be caused by dropping the key fob, or through exposure to water. If the key fob stopped working after water exposure it is possible to repair the issue by cleaning or cleaning the chip with isopropyl alcohol, or electronic cleaner.

If the key fob continues to not respond after cleaning it then it is likely that the module is faulty and will need to be replaced. A damaged receiver can cause the key to stop working. This is usually due to electromagnetic interference.

Electronic chip that is malfunctioning

The electronic chip inside your key fob plays a crucial role in the anti-theft system of your vehicle. It transmits a signal to the immobiliser device in your car to determine whether the key is in fact valid. The car will not start when the chip is damaged.

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

Faulty battery contacts

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

Modern fobs come with rubber seals to keep out water. Submerging them in water, even if it is just the slightest splash or drizzle can harm the chip's electronic components.

The key fob comes with a chip which communicates with the immobilizer system of the vehicle, allowing it to start it. The system utilizes the old red keys in older vehicles or the crypto coding system in modern vehicles. If the chip is not working properly and needs to be replaced.

Problematic 12 Volt Battery

A faulty battery can cause the remote to cease to function. If this happens the car's computer will not recognize that the remote is within the vehicle.

Test the battery using the help of a voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading falls significantly the time is now to replace it.

Install an electrical charge for a short period of time on the battery to gauge its capacity. This will eliminate approximately 1 percent of the charge on the surface. Then, test the voltage again. The higher the capacity of the battery and the longer it can keep its voltage. Ideal is to hold close to 12 volts over several minutes.

Radio Signal Faulty Radio Signal

This is the most frequent reason behind a key fob that stops sending signals to the car. The battery can be replaced to fix this issue. However, it is important to select a replacement battery that has the same voltage and size as the original.

Fobs are not indestructible and are susceptible to damage. The battery buttons and the contacts are fragile and can be bent or damaged from excessive use.

Other transmitters or objects that use the same frequency can also interfere with the signal. For instance, a light control panel in your home could transmit interference on the same frequency that key fobs utilize. This could interfere with your car's remote control.

The tool is not working properly. OBDII scan tool

There are a number of reasons why a scanner could not function. Some are more complicated than others.

Professional scan tools permit mechanics to monitor the car's network and run a range of self-tests. They can be huge time savers, however they are also extremely expensive and are out of the reach of most DIYers.

If your OBD2 scan tool won't power on, check voltage at the terminals 16 (scantool power) and 4 (chassis earth). If these are OK it's possible that a fuse is blowing. This is the main reason for failures of the scanner. It is generally easy to fix the issue by replacing the blown fuse.