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Car Immobiliser Repair In the latter part of the 20th century automakers began using car immobilisers due to hotwiring becoming more popular with thieves The immobiliser stops the engine of your car from starting if the chip inside your key fob has been damaged or doesnt match It is therefore important to fix your cars key immobiliser immediately if it becomes faulty or damaged Here are the most typical reasons for your cars immobiliser failing to function Dead Batteries Key fob issues are usually caused by batteries that are dead Batteries can fail from longterm use exposure to harsh environmental conditions or simply ageing When a battery is damaged it will not provide the power necessary to control the key fob and send the signal required by the immobiliser system This could prevent the vehicle from starting resulting in the requirement for a professional to carry out an repair of the immobiliser system Most times replacing the battery is all you need to revive an old battery and make it functional again You can purchase a good quality coinstyled batteries at your local hardware store or even from general retailers for around 510 After purchasing the new battery carefully remove the old one and open the casing Find an opening or notch along the line that divides the bottom and top halves of the fob Use an flathead screwdriver or coin into the slot and then move it around the edges Then insert the new batteries and snap the two halves together When youre done you can recycle your old battery at a battery collection site close to you If the new battery does not fix the problem there could be a problem with the RFID system within the key fob The majority of vehicles with a pushbutton ignition design require that the fob be held up close to the ignition barrel in order to verify its presence and send the right signal for the vehicle to start If the RFID on the key fob is not able to communicate with the vehicle you will be required to have a replacement key made or take it to a dealership to repair the immobiliser If changing the battery doesnt solve the issue its worth disassembling the key fob and looking for any buttons that seem offcenter or damaged Because your key fob gets jostled about a lot as you use it and its not uncommon for some of the buttons to get stuck or misaligned in time Key to the Transponder is not working A faulty transponder key is an unfortunate occurrence that can cause serious damage Transponder keys differ from conventional keys made of metal which engage the ignition mechanically They are equipped with an electronic microchip which sends a unique number to the immobilizer system in the car to verify the identity of the key This provides an additional layer of security reducing the chance of thefts and other vehiclerelated crimes But like other electronic device transponder keys are subject to a variety of problems which include those that concern the chips functionality Transponder chips can be delicate and even a small physical injury can affect their ability to work It is crucial to examine your transponder keys for signs that indicate wear as they could be the cause of a malfunctioning immobiliser In addition the internal microchip in the transponder key is sensitive to environmental and water conditions which can also affect its ability to communicate with a vehicles immobilizer system As a result it is important to keep your key fob and key chain safe from any water or other contaminants as much as you can Its also important to keep in mind that a transponder key has been specifically programmed for a specific vehicle and changing any part that is sensitive can result in issues with compatibility that could impact its function It is best to avoid making any modifications to a key unless youre equipped with the right knowledge and equipment A professional locksmith can help you if your key requires to be repaired or replaced car key immobiliser repair ll be able to duplicate your existing key or create a new one from scratch and theyll be able program it to work with your specific vehicles immobilizer system assuring that it operates properly This process is not as easy as copying a metal car key It requires specialized tools in order to ensure that the software is programmed with the proper information Antenna or Receiver is damaged The transponder chip that is in the car key sends an electronic signal that is interpreted by the ECU to verify that its the correct key to start the vehicle If its not the correct key the immobiliser system will stop the engine from being started car key immobiliser repair is to stop thieves from using stolen or cloned keys to access your cars motor If the signal cannot be accepted by the ECU because of a problem with the antenna or receiver the car wont start A professional auto locksmith will assist you in resolving these issues This could be due to a number of reasons which include an antenna that isnt compatible or an electrical interference issue Radio frequency interference RFI can be caused by communications equipment and transmitters including computer systems cable television systems and digital devices as well as heavy electrical equipment or lighting systems Its also possible that the coaxial antenna cable is damaged or disconnected This could happen if your pets play around the home or if the cable is twisted during installation The receiver might be too far away from the antenna Connect the receiver to another antenna and check If the error message persists it is possible that you need to install an additional antenna or change the route of your coaxial cable Antennas do not really fail however they may get pinched or twisted or they might come loose from the connector which could cause the RF level to decrease Also you should check if there is any equipment installed between the antenna and the receiver such as a surge protector or splitter because this could affect the signal strength If you choose to use the EEPROM method to program the car key you will need to extract specific modules security components from your vehicle and then read the password from them This requires a lot of knowledge as there is a possibility that the information can be damaged A professional auto locksmith has a comprehensive understanding of the circuit board and can minimise this risk by reading the data directly from the module with a special tool Faulty Electronics Many modern cars have security systems that block them from starting the engine in the event that they dont have a remote or key to the car These systems employ transponder chips RFID RadioFrequency Identification technology or immobiliser control units to authenticate the key or fob once its put into the ignition automotive key repair can be a great way to reduce vehicle theft however like all pieces of electronic equipment its possible to fail If the security light is not flashing on your dashboard this means that the immobiliser inside your car isnt receiving the signal from the fob or key This can be due to a variety of factors such as a battery that is depleted in the fob or a physical damage on the key If youre experiencing this issue follow the instructions of the manufacturer to reset the system or contact a professional mechanic to get help When you insert the transponder chip into your key it transmits an encoded code to the immobiliser in the car which is then compared to the codes that are stored in the computer If the codes are the identical the engine will turn on and the immobiliser shuts off If the immobiliser fails to detect the signal that it is looking for the engine wont turn over and you may be stuck There are a variety of issues that can cause the cars immobiliser to cease working properly but most of them are fairly easy and affordable to fix A dying or dead keyfob battery is the most common cause and is easily identified with an easy diagnostic test If this does not resolve the problem it could be due to other issues with the electrical system in your car that are affecting the immobilisers function If this is the case a professional should look over the wiring of your car and look for indications of damage or loose connections that may be impacting the performance of your vehicle A car key immobiliser helps to protect your vehicle against unauthorised access They are generally safe but they can occasionally fail and require repair or replacement You can prepare for the occasional hiccup by understanding the most common symptoms and causes