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Saab Key Programming Saab cars built since 1994 utilize an immobilizer that relies on keys that are coded. Adding an extra key requires a new transponder and special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool. The problem is that this could be extremely expensive. This is the reason why you should always keep a spare key in your possession. Transponder key The transponder keys are keys with an electronic chip that transmits a signal to the car when it is inserted into ignition. The car will check to see if the signal matches the one on the key. If the signals match then the car will be able to unlock and start. This is a fantastic way to protect your vehicle from theft. Transponder keys may be an extremely popular accessory for cars, but they're not as safe as traditional metal keys. The metal component of a traditional key can easily be cut or copied, while a transponder has an electronic chip that guards it. The chip has a unique code that's programmed into the car's computer in order to identify it. The car will recognize the Saab keyfob and allow it to be turned on. However, it will only do this if the fob has an unmodified chip that has been programmed to match the original. The car will not start if the key is not programmed to match. It is essential to have an extra Saab key. This is especially important for those who live in a rural area that is home to many car thieves. You can get a new key for your Saab by going to the dealership without paying their high costs. In the majority of instances, you can get a new key created on-the-spot for less than half the cost of what you'd pay at an auto dealer. Wired key Saab cars typically come with two keys when new. If you only have one, it's recommended to purchase an extra key fob as quickly as you can since if you lose it, your car will require a new CIM unit, and the locking cylinders will have to be replaced. This could be expensive especially if you're buying a second-hand car. The next step is to connect the wires for columns and row to your microcontroller. This is the most challenging part of the project and will require a large amount of soldering. There's no standard way to go about it, but you should plan how to route and solder each column and row. For this keyboard, there are 5 rows and 17 columns. This means there will be 22 microcontroller wires and pins to connect. After the columns and rows are soldered together then it's time to connect the key switches. To do this you must place an inverter over each key switch pin and then solder it. This will protect the pins that are used for key switches from current and prevent them from being shorted. A diode can only allow the current to flow in a single direction, and it comes with a a black band visual indicator that indicates which way the current will flow. Sanabria states that a number of the tools offered in auto parts stores, including the Autel MaxiIM IM608PRO and IM508, can help customers shopping or DIY customers to program replacement keys and restore immobilizer data. The tools plug into OBD ports and help the customer through each step making the process simpler than replacing the vehicle's computer. Jumpstarting the battery Most people keep a few sets of jumper cables in their trunks for emergencies, but jumping a battery for newer vehicles might not be the best option. These cars have a variety of computers and digital devices that communicate with each other. A voltage surge while a battery is hooked up to another could cause damage to the components and render your vehicle undriveable. Connect saab key replacement near me to the vehicle that is operating. Allow it to run for two minutes. Attach the red clip to the positive terminal of the good battery (it will have “POS” or “+” on it). Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled car's hood—the engine block is a good choice. Don't connect the black cable to the negative terminal on the dead battery, as this could cause a spark that ignites the gasoline in the engine bay. Once the cables are connected, you should begin the car and allow it to run for around five minutes. Then, disconnect them in reverse. The battery in your Saab 9-3 will recharge while you drive. It may take a while it to return to its original state. It is a good idea to purchase a spare key fob as soon as you can, since replacing the one that works requires the installation of a new computer module and special programming to convince the system that your lost keys are not trying to steal the car. Replacement case Saab owners often only have one car key, and if it is lost, they'll be charged. It's expensive to add keys and will require replacing the CIM or TWICE in the case of older models. In the event of theft or other catastrophe it is advisable to have an extra key. However, don't purchase a secondhand key, even it's “new.” Keys that are claimed as new from a second-hand store will not work and are likely to fail in the crucial moment. Most locksmiths can't help you with a single working key and the dealer will charge high fees to replace the computer in your car for a replacement. We can, however, reset and re-program your computer's EEPROM to prepare it to accept the new key without having to replace the entire system. That can save you a lot of money. It's also less expensive than waiting until you lose the only key.