Car Key Chip Problems

If you ve recently had new keys made or are using a spare key of any sort your key may need to be programmed so it can communicate with your car s engine.

Car key chip problems.

The keys have a built in chip that sends a code to the alarm system when you insert it into the ignition. If the car s engine doesn t get a signal from the key its immobiliser keeps it from starting by any other means. When you put the key into the ignition or have the key fob inside the vehicle for keyless fobs the transponder chip inside the key fob sends a security code to the car s immobilizer system. If you drive a fairly modern car there is less of chance that you will have to deal with this which is mostly attributed to the presence of key fobs and keyless entry remotes.

If the car starts and drives properly there is no problem with your key s microchip. If you only have 1 key to your car or don t want to invest in a locksmith making valid transponder keys and just want metal keys here s how to do it the fas. An incorrect key code such as from an unprogrammed key or damaged key would prevent engine starting. Like all computers the chip inside your transponder key needs to be programmed so that your car s engine can communicate with it.

If this security code matches the code in the immobilizer system the car will be allowed to start. To program a car key turn the ignition on and off with working keys. Your key should work perfectly but if it doesn t you can take it to a professional auto dealer or locksmith for help. If the car will not turn over stay running or operate with the key there may be a problem with your microchip or with something else in your car s ignition system.

The key itself could be the culprit for the anti theft system car wont start. The inside of the key fob contains a transponder chip. The chip in the key transmits a specific code of which there are millions. Afterwards use the unprogrammed key or press a button on the key fob.

If this code matches the ones programmed into the vehicle engine starting is enabled. If your car key is not working when you attempt to unlock your car there is a possibility that the lock itself is damaged. For the most part a fully functional key fob will be able to unlock the doors on a car in just a single click. Transponder keys must be used to start the car s engine.

If one key does not respond try the other one.