Peugeot 208 Key Replacement
Peugeot 208 key replacement is best left to experienced auto locksmiths who have the proper tools and know-how. They will be able to create and program new keys much quicker than a dealership and at a lesser cost.
A dead coin battery is most likely to be at fault the reason why your key fob isn't locking or unlocking the doors. There are other causes that the key might be malfunctioning.
Dead Coin Battery
A dead coin battery will stop your Peugeot 208 from locking and unlocking, and also preventing it from starting the engine. In this instance, you will need to choose the alternate method to start that is described in the owner's manual.
Another reason why your 208 may not start is because the spark plugs have been damaged. The spark plugs light the fuel to start the engine. However they are limited in their lifespan. peugeot 206 key replacement G28 will eventually break down in the event that they aren't utilized enough.

There is an easy solution to this issue. Verify the voltage of your battery using a multimeter. If the voltage is less than 11,5 volts then it's time to replace it. If the battery has corroded it is essential to clean its contacts. You can do this by lifting the rubber covers that cover the two terminals on the battery and using a wire brush to remove any corroded parts of the battery. Then, you should connect the cables to the positive and negative poles.
Water Damage
If your 208 won't turn on and the battery isn't empty, you must ensure whether the spark plugs are working. It is possible that they're overly dirty, causing them not to spark. The spark plugs can be cleaned in an workshop.
Peugeot automobiles are equipped with a transponder compatible with the immobiliser. This ensures only the correct key can turn the engine. If the chip inside the Peugeot key is damaged, it will not transmit the correct signal to the vehicle.
This is a very common issue that can be caused by water damage. This is a frequent issue in colder climates where the vehicle has been exposed to rain or snow. If this is the case, contact a reputable auto locksmith who will have all the equipment and tools needed to modify the new key. They will also have the latest technology and machinery required to create a Peugeot smart key. The process shouldn't take longer than 15 minutes.
Contacts to the battery are not working properly.
Peugeot changed from the old carbon encased transponder chips to a new type of chip that uses electronic components in circuit boards. The new system is excellent when it's new, however the circuit boards deteriorate over time and stop working properly.
This could stop the immobiliser chip from working and causing your car to not start. Contact a Peugeot specialist or a locksmith, if this is the situation.
Another common issue is when the battery of the key fob begins to fail, which causes the blade of the key to stop getting into the lock. A locksmith in your car will replace the battery, and then cut a fresh blade for you. This is a simple solution.
Faulty Receiver Module
It could be that the receiver module is malfunctioning If your Peugeot key fob isn't working after being dropped on the floor, exposed to a sudden rainstorm or accidentally washed. The receiver is responsible for sending radio frequency signals to the on-board computer, which is responsible for controlling the centralized locking system within your Peugeot vehicle.
The rubber seals on the key fob prevent water from getting to the electronic chip. However, prolonged exposure to water could break through these seals, causing damage to the chip. Submerging the key fob into sea water at the beach or throwing it into the pool could be especially damaging because of the high salt content.
If your Peugeot spare key fob doesn't work You'll need the module replaced. This can only by done by a Peugeot specialist or an expert auto locksmith. Peugeot keys are, unlike other vehicles, are secured by an immobilizer system. This requires the proper programming to allow the car to start. This is the reason why you should only be able to trust a professional Peugeot locksmith to handle the task of designing and programming an alternative.
Computer with a problem on board
The on-board computer in your Peugeot is responsible many systems in your car, including airbags and power windows. The on-board computer will display a code when something goes wrong. This code is saved in the system and remains there until the issue is fixed. This can often mean that the on-board computers to be replaced.
One of the most frequent causes of the airbag light coming on is loose or corroded connection in the airbag sensor. This can be caused by wear and tear, age or exposure to salt and moisture. It is imperative to have this issue addressed as quickly as you can, as an airbag that is malfunctioning can be dangerous in the event of an accident.
If your Peugeot is showing a card detected as not present error, then the battery in the key fob could be weak or dead. This prevents the key fob from sending a signal that disables your vehicle's immobilizer. You can test this by pressing the unlock button on the key fob, then trying to start your vehicle. If this fails the battery on the key has to be replaced.