Peugeot 308 Key Fob Replacement
Peugeot's 308 might seem a little old however it's still eye-catching. It's not the most luxurious car in its class, but it is an enjoyable and relaxing drive.
We often receive requests from Coded Car Keys to replace peugeot key fobs. The following tips will assist whether the issue is persistent or intermittent.
Water Damage
If you accidentally drop your key fob into a puddle or it is soaked while kayaking, canoeing, rafting, or canyoning, the fob is likely to be damaged by water. Keep your key fob in a dry bag every time you are outdoors or engage in activities that expose it to a lot of water.
It's also important to make sure that the fob has dried out prior to opening it up and then use it again. If you detect any smells coming from the fob, like an industrial liquid smell or that of windshield washer fluid, it's another indication that it's been submerged in water.
A circuit that is wet can cause the battery's charge to drain or even explode. If you're able, if you can, pull your 308 key fob out from the body of water it got stuck in then flip the button side down and shake out as much water as you can before opening the case. Take the battery out, and then clean the circuit board using a cotton swab that has been dipped into 90-percent alcohol.
Other causes why your Peugeot 308 remote entry keyless system might not work include a dead coin cell battery or receiver module malfunction signal interference or a defective chip. If none of the above is the reason you can reset the system by disconnecting a 12 volt battery from the vehicle for 15 minutes.
Dead Coin Battery
Peugeot cars come with a remote-start system which allows the driver to start the car from afar by warming up or cooling down the vehicle prior to getting in. This feature is extremely helpful, especially during cold winter months. Remote start systems can be stopped for a variety of reasons, such as an inactive coin-battery.
A coin-shaped battery that is in the key fob will last a time of between two and four years, depending on how often it is used and where it's purchased. The date of use will be displayed on the packaging or marked in the user manual.
If the key fob has stopped working after being exposed clean tapwater, take out the battery and clean the electronic chip using the aid of a towel soaked in isopropyl ethanol. Then dry the chip completely before replacing it. If you expose it to salty or soapy water, the chip could be fried and you will require replacing the key fob altogether.
If you're not sure the battery is faulty, you can test its voltage with a multimeter that is set to the vehicle's voltage range and connected to the minus and plus terminals. The voltage should be between 12-13 volts, however, if it reads lower, then the battery needs to be replaced. You can also reset the onboard computer by disconnecting and reconnecting the 12 volt batteries in reverse order. (positive cable first then negative cable). The engine should start after this.
Faulty Receiver Module
If you don't see "Key Detected", it could be the receiver module not working properly. It's the part that sends an alarm to the car when the key fob is activated that also acts as an immobiliser. It stops it from starting unless the key that you want to use is present.
It could be due to several causes, such as water damage or simply ageing. If the chip inside your Peugeot 308 keyfob has been damaged due to dirty tap water, it could be because the keyfob was exposed it. In this scenario, you'll need to remove it and clean it thoroughly using isopropyl or an electronic cleaner. Once it's dry, you can put the battery back in and test it again.
If the issue is not resolved, it is a good idea to visit a local Peugeot expert or locksmith. They can employ a diagnostic tool in order to pinpoint the issue and fix it.

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Electronic chip malfunctions
The electronic chip that is in your Peugeot 308 key fob is an vital component of the remote control system. If it is damaged your car may not start, or you could receive a message saying "anti-theft active". In this situation, the only solution is to replace the key. Auto locksmiths who are professionals can provide this fastest possible time.
The chip in the chip of your Peugeot 308 key fob can be damaged by sweat, water damage dirt, or other reasons. If your Peugeot key fob has been exposed to soapy or dirty water, it should be cleaned promptly. You can clean the electronic component using a paper towel soaked in isopropyl Alcohol. Then, you need to allow the battery to completely dry.
Radio interference can cause the key fob to stop working. This could be caused by other devices that operate on the same frequency as your Peugeot key fob. It could also be caused by weather conditions or objects in the vicinity of the vehicle. It is recommended to visit a Peugeot dealer if you experience this problem.
The Peugeot 207/308 Key Fob is very delicate and requires special care. G28CarKeys is crucial not to drop or throw the key fob. If you lose something, try to locate it as soon as possible. You can reset the on-board computer by disconnecting the battery for a few minutes. Disconnect the negative cable before the positive.