Peugeot 208 Key Replacement
It is better to leave the replacement of Peugeot keys for 208 to auto locksmiths that have the required equipment and expertise. They can make and program new keys faster than a dealership would and at a lower cost.
A dead coin battery is the most likely cause when your key fob stops locking or unlocking doors. But, there are other possibilities that the key is malfunctioning.
Dead Coin Battery
A dead coin battery can prevent your Peugeot 208 from locking or unlocking and cannot start the engine. In this situation you'll have to use the alternative starting method found in your vehicle's owner's manual.
The spark plugs can also be worn out. Spark plugs are what ignite the fuel to start the engine. However they have a short life span. If they aren't utilized enough, they will eventually fail.
There is a straightforward solution to this issue. Check the voltage of your battery with a multimeter. If it is below 11.5 volts, then you need to replace it. If the battery has corroded, it is important to clean its contacts. This can be done by lifting the rubber covers that cover the two terminals on the battery and using wire brushes to clean any corroded areas of the battery. You should then reconnect the cables for the positive and negative poles.
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If your 208 won't start and the battery isn't flat, then you need to make sure whether the spark plugs work. You might find that they are simply too dirty and don't spark. The spark plugs can be cleaned in an workshop.
Peugeot cars are equipped with a key with a transponder compatible with the immobiliser. This ensures that only the correct key is able to start the engine. If the chip inside the Peugeot key is damaged, it will not send the correct signal to the vehicle.
Water damage is a frequent cause of this problem. This is a common problem in colder climates where the vehicle has been exposed to rain or snow. In this situation, contact a trusted locksmith who will have the tools and equipment required to change the key's programming. They'll also have the latest technology and machinery needed to make the Peugeot smart key. The process shouldn't take more than 15 minutes.
Faulty Battery Contacts
Peugeot changed from the carbon-encased transponder chips to an entirely new type of chip that uses electronic components on a circuit board. The new system is excellent when it's brand new, but the circuit boards wear out over time and stop working properly.
This could prevent the immobiliser chip activating which means that your car won't start. Contact a Peugeot specialist, or a locksmith if this is the situation.
Another common issue is when the key fob battery is dying, this causes the blade of the key to stop being able to feed into the lock. A car locksmith can replace the battery and cut a fresh blade for you, it's normally a quick fix.
Faulty Receiver Module
It could be that the receiver module is defective if your Peugeot key fob fails to function after being dropped on the floor, or exposed to a sudden downpour or accidentally washed. The receiver is responsible for transmitting radio frequency signals to the onboard computer which controls the centralized locking system inside your Peugeot vehicle.
The key fob itself has rubber seals that prevent water from reaching the chip inside. The chip can be damaged by water when exposed to the water for an extended period of time. The high salt content of the pool or ocean water can cause damage to the key fob if it is submerged.
The module must be replaced if your Peugeot spare key isn't working anymore. This can only be done by an expert auto locksmith or Peugeot specialist. Peugeot keys unlike other automobiles, are protected by an immobilizer system. This requires the proper code to begin the car. This is why you should be able to trust a professional Peugeot locksmith to handle the task of creating and programming an alternative.
Computer on board is not working properly
The on-board computer of your Peugeot is responsible for many of the systems inside your car, including airbags and power windows. If something goes wrong with these systems, it will typically show a code that identifies the issue. The code will be stored in the system until the issue is fixed. This could mean that the on-board computers to be replaced.
The most frequent cause for the airbag warning light to turn on is corrosion or loose connections in the sensor. This can occur due to wear and tear, aging, or exposure to moisture and salt. It is crucial to get this issue addressed as soon as you can, since a malfunctioning airbag can be dangerous in the event an accident.
If you encounter the error "card not found" on your Peugeot key fob, the battery in the key fob may be weak or dead. This will stop the key fob sending a signal to deactivate the immobilizer on your vehicle. You can test this by pressing the unlock button on the key fob and then trying to start your car. If this fails, then the key battery must be replaced.