Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain transponder chips that send a signal to your car to open the doors or start the engine. The fob can stop functioning due to a variety of reasons.
A dead coin battery is the most frequent cause of malfunctioning keys. Other causes are water damage, malfunctioning receiver modules and signal interference.
Dead Coin Battery
Replace the battery if your key fob has gone out of service. Choose a button battery that has the same voltage, size and specifications as the previous one.
If the key fob has been exposed to water, such as a splash of rain or salt water on the beach, it will have to be cleaned before it can be used again. The trick is to use the paper towel and soak it in isopropyl, or electronic cleaner.
If the key fob is not working even though it is not exposed to water it could be due to a problem in the receiver module or an internal electronic chip. Reprogramming the keyfob using an OBDII scan could help in these instances.
Water Damage
If your key fob has gotten immersed in a puddle or pool, or taken a trip through the washing machine, you could be suffering some water damage. It's usually possible to get it working again by taking off the battery and then scrubbing the circuit board with isopropyl alcohol. talking to is best to allow the device to completely dry before installing a battery.
If your key fob isn't working even after replacing the battery and programming it again, you might have a malfunctioning receiver module. You can find the instructions for the reprogramming of most remote keys on YouTube or consult your owner's manual. You can also reset the computer of your vehicle using the OBDII scanner tool.
Faulty Receiver Module
The key fob has a chip which communicates with the vehicle's system. This chip will stop sending and receiving signals to the car if damaged. A key fob falling off can cause this, as well as exposure to water. If your key fob has stopped working due to water exposure and you are unable to fix it if clean the chip using electronic cleaner or isopropyl ethanol.
If the key fob does not respond to cleaning, it's possible that the component has an issue and should be replaced. A malfunctioning receiver could cause the key to cease to function. This is usually caused by electromagnetic interference.
Faulty Electronic Chip
The chip inside your key fob plays a vital part in the anti-theft security system in your car. It sends out a signal the immobiliser device in your car to inform it whether the key is legitimate. If the chip is damaged or damaged, your car won't start.
A faulty chip can also be caused by interference signals from objects or weather conditions that are bad, or transmitters operating on the same frequency as your car. In this situation you'll require a new key fob.
Contacts to the battery are not working properly.
The battery contacts on the fob's key can be damaged through heavy use. If they're bent, or broken, the fob won't send any signals to receiver modules inside the vehicle.
Modern fobs have rubber seals that block out water. A splash of water or a light rain should be fine however, submerging them in saltwater can damage the chip's electronic components.
The key fob has chip that communicates with the immobilizer system of the vehicle to start it. The system uses the old red keys for older vehicles, or the cryptocoding system found in newer vehicles. If the chip is defective it must be replaced.
Poor 12 Volt Battery
A damaged battery can cause the key fob to cease working. The car's system will not recognize the remote if this happens.
Before you replace the battery, test it by using a an voltmeter to gauge its capacity. A fully charged battery will read 12.6 volts. If the reading drops dramatically the time is now to replace it.
Place an electrical load for a short period of time on the battery to check its capacity. This will eliminate about 1% of the charge on the surface. Then, test the voltage again. The longer a battery can hold its voltage greater is its capacity. Ideal is that it stays close to 12 volts over several minutes.
Radio Signal Faulty Radio Signal
This is the most common reason for the key fob to stop sending signals to a car. The battery can be replaced to solve this problem. It is crucial to purchase a battery with the same voltage and dimensions as the original.
Fobs aren't indestructible and are susceptible to damage. Contacts and buttons on batteries can be damaged by rough handling.
Other transmitters or objects using the same frequency can disrupt the signal. A light-control panel in your home, for instance can interfere with key fobs that use the same frequency. This could interfere with the remote control of your car.
Incorrect OBDII Scan Tool
There are many reasons why scanners don't perform. Some are more complicated than others.
Professional scan tools let mechanics to observe 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 scanner isn't turning on examine the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If these are OK it's likely that a fuse has blown. This is among the most common causes of a scan tool failing. It is often easy to fix the problem by replacing the blown fuse.