Peugeot 308 Key Fob Replacement
Peugeot's 308 might be catching on a little however, it's still eye-catching. It's not the most luxurious car in its class - the Ford Focus or Volkswagen Golf will isolate you even better from imperfections on the road - but it's still a pleasant and civilised drive.
Here at Coded Car Keys we are often asked to replace peugeot 308 key fobs. The following tips can assist whether the issue is persistent or intermittent.
Water Damage
If you accidentally drop your fob in the midst of a puddle or splash it with water while swimming, kayaking, canoeing, rafting, or canyoning, it's most likely to be damaged by water. The best way to avoid this from happening is to always keep it in a dry bag whenever you're out in the open or engaging in activities where the fob could be exposed to large amounts of water.
It's also essential to make sure that the fob is completely dried before you open it to use it again. If you notice any odors coming from the fob, like an industrial liquid smell or that of windshield washer fluid, it's another sign that it's submerged in water.
A circuit board that's damp can cause the battery's charge to drop its charge, or even explode. If you can remove your keyfob 308 out of the water it is best to turn the button side up and shake as much water as you can before opening the casing. When you've opened it, take off the battery, and then clean the circuit board using the help of a cotton swab that has been dipped in 90-percent isopropyl alcohol.
Other reasons why your Peugeot 308 remote keyless entry system may fail to function include a dead battery for your coin or receiver module issue signal interference, an electronic chip that is defective. If none of these causes the problem, you can try resetting your system by disconnecting the 12 volt battery for around 15 minutes.
Dead Coin Battery

Peugeot cars come with a remote start system that allows the driver to start the car from afar while warming up or cooling down the vehicle prior to stepping inside. This feature is very beneficial especially during the cold winter months. However, sometimes the remote start system stops working due to a variety of reasons, including the battery of a coin that is dead.
The coin-shaped battery located within the key fob may last between two and four months, depending on how often it is used, where it was purchased, and how it is utilized. The date for use-by is typically printed on the packaging or listed in the instruction manual.
If the key fob stopped functioning after exposure to water that is clean then you must remove the battery, then clean the electronic chip using a paper towel and isopropyl Alcohol, then dry it thoroughly before replacing it. If the key fob has been exposed to salty or soapy water, it may have caused the chip to be damaged. You'll need to replace it.
If you are not sure the battery is faulty, you can test its voltage with a multimeter set to the vehicle's voltage range and connected to the minus and plus terminals. If the voltage is less than 12-13 volts, then it is time to replace the battery. You can also reset your onboard computer by disconnecting and reconnecting the 12 volt batteries in reverse order. (positive cable first, then negative cable). The engine should now start.
Faulty Receiver Module
If you don't get the "Key Detected" you might find the receiver module not working properly. It's the part that sends an alert to the car when your key fob is activated, which acts as an immobiliser. It stops it from starting unless the correct key is present.
This could be due to a range of factors including water damage or simply the aging process. If your Peugeot 308 key fob has been exposed to dirty tap water, as in the electronic chip located inside is damaged. In this instance, you'll need to remove it and thoroughly clean it with isopropyl or electronic cleaner. Once it's dry you can put the battery back into the battery and try again.
If the issue continues to persist then it's a good idea to seek out an area Peugeot specialist or locksmith. They can utilize the diagnostic tool to identify the issue and repair it.
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Faulty Electronic Chip
The electronic chip in your Peugeot 308 key fob is an important component of the remote control system. If the chip is damaged, you may have problems starting your car or receive a message stating "anti-theft". In this instance, the only solution is to replace the key. Professional auto locksmiths can provide this service within the shortest possible time.
The chip inside your Peugeot 308's key fob may become faulty for a variety of reasons, such as water damage, sweat or dirt. If your Peugeot 308 key fob has been exposed to soapy water, you must cleanse it immediately. You can employ a paper towel as well as isopropyl alcohol to clean the electronic component. The battery must then be allowed to dry completely.
Radio interference can cause a key fob to stop functioning. This can be caused by other devices that operate on the same frequency as your Peugeot key fob. It could also be caused by bad weather or objects in the vicinity. If you encounter this issue you should visit the Peugeot dealership.
The Peugeot key fob 207/308 is extremely delicate and requires extra attention. You should not drop it or throw it around. If you lose it, try to locate it as quickly as is possible. You can reset the onboard computer by disconnecting the battery for a couple of minutes. Be sure to disconnect the negative cable first before connecting the positive.