Fiat Panda Key Fob Replacement

fiat keys replacement Panda keyfobs are equipped with a transponder, which sends signals from the fob to the car that allows it to unlock doors or turn on the motor. However, the fob could stop working due to a variety of causes.

The most commonly cited reason for key fob malfunction is an inoperable coin battery. Other causes include water damage a faulty receiver module 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 with the same voltage, size and specifications as the previous one.

If the key fob was exposed to water (such as saltwater or rain at the beach) It must be cleaned prior to being used again. The best method is to use a paper towel soaked with isopropyl or an electronic cleaner.

If the key fob is not working despite being not exposed to water, it could be due to a glitch in the receiver module or in the internal electronic chip. In these cases, reprogramming the key fob using an OBDII scanner might help.

Water Damage

There could be water damage if your key fob was submerged in a pool, puddle or washing machine. It's possible to repair it by getting rid of the batteries and cleaning the circuit board with ruby alcohol. It is recommended to let the board completely dry before putting in the battery.

If your key fob isn't working even after replacing the battery and changing the program, you could have a malfunctioning receiver module. You can find reprogramming procedures for the majority of vehicles' remote key fobs on YouTube or in your owner's guide. You can also try resetting the car's onboard computer by using the OBDII scan tool.

Faulty Receiver Module

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

If the key fob does not respond to cleaning, it is possible that the module has issues and needs to be replaced. A malfunctioning receiver module could also cause the remote control key to stop working. This is often caused by electromagnetic interference.

Electronic chip that is malfunctioning

The chip that is embedded in your key fob is an important part of the anti-theft system in your vehicle. It transmits a signal to the immobiliser unit in the vehicle to determine whether or not the key is legitimate. Your car won't start if the chip is damaged.

A faulty chip may also be caused by interference caused by objects, bad weather or transmitters located near your vehicle. In this case you'll require an entirely new key fob.

Faulty battery contacts

The battery contacts on a key fob can be damaged through heavy use. If they are bent or broken the fob will not send any signals to the receiver modules inside the car.

Modern fobs come with rubber seals that block out water. A splash of water or a light rain is fine however, submerging them in salt water could damage the chip's electronic components.

The key fob houses the chip that connects to the vehicle's immobilizer in order to start it. It uses the old red keys that were used in older vehicles as well as the cryptocoding system found in the latest vehicles. This chip will need to be replaced if it's defective.

Poor 12 Volt Battery

A defective battery can cause the key fob to cease to function. If this happens the car's computer won't recognize that the remote is within the vehicle.

Before replacing the battery, test it with an voltmeter to gauge its capacity. A fully charged battery should display 12.6 volts. If the reading drops significantly, it is time to replace the battery.

Install an electrical charge for a few moments on the battery to determine its capacity. This will take away about 1 percent of the surface charge. Then, measure the voltage again. The higher the capacity of the battery, the longer it can maintain its voltage. Ideal is that it stays at or near 12 volts for several minutes.

Faulty Radio Signal

This is the most frequent reason for a key fob that ceases to send signals to the car. This issue can be resolved by replacing the battery. It is important to buy batteries that have the same voltage and dimensions as the original.

Fobs are subject to a lot of abuse, but they're not impervious to destruction. The battery buttons and the contacts are fragile and are susceptible to being bent or broken with rough use.

Other transmitters or objects operating on the same frequency can interfere with the signal. For instance, a lighting control panel near your home may transmit interference using the same frequency as key fobs use. This could interfere with the remote control of your car.

The tool is not working properly. OBDII scan tool

There are many reasons why a scan tool could not work. Some are more complex than others.

Professional scan tools enable a mechanic observe the car's network and perform various self-tests. These tools can save you a lot of time, but are costly and out of reach for the majority of DIYers.

If your OBD2 scan tool isn't turning on, check voltage at terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition, a fuse may have been blown. This is the most frequent cause of scan tool failure. The simple fix is usually to replace the blown fuse.