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Saab Key Programming Saab cars made since 1994 feature an immobilizer system based on keys that are coded. A new transponder is required to allow the inclusion of an additional key, as well as special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool. It can be costly. You should always keep an extra set of keys available. Transponder key The transponder keys are keys with an electronic chip that sends a signal to car when it is inserted into the ignition. The car then checks the signal to determine whether it matches the one that is in the key. If the signals are the same, the car will unlock itself and begin. This is a fantastic way to guard your car against theft. Transponder keys are a popular feature in vehicles, but you must be aware that they're not as secure as classic keys made of metal. While the metal parts of a traditional key may be cut and copied but a transponder key is protected by an electronic chip. This chip contains an unique code that is embedded into the car's computer to identify it. When a Saab key fob is used, the car recognizes it and allows it to turn on. The car will only recognize the key fob if the device has an unmodified chip and programmed to match. The car will not start if the key is not programmed to match. It's crucial to ensure that you have a spare key for your Saab. This is particularly important if you reside in a rural area that is home to many car thieves. saab key is that you can find a new key for your Saab without having to go to an auto dealer and pay the high prices they ask. In the majority of instances, you can get an original key made on the spot at a fraction of the cost of what you'd pay at a dealer. Key for Wired Saab cars usually come with two keys when new. If you only have one, it is a good idea to get an additional key fob as soon as you can, because if you lose it, the car will require a new CIM unit, and the locking cylinders will need to be replaced. This can be expensive particularly for used cars. The next step is to wire the wires for the column and row to the microcontroller. This is the most difficult part of the project and requires a significant deal of soldering. It's not a common way to do it, however, you should consider how you will route and connect each column and row. There are 22 microcontroller wires as well as pins to connect to this keyboard. It has 5 rows and 17 columns. After the rows and column are soldered together after which it is time to connect the key switches. To do this you must place a diode on each key switch pin and solder it. This will shield the pins of the key switch from current and stop them from being shorted. A diode lets current only flow in one direction. It has a visual indicator with a black band that indicates which direction current will flow. A few of the tools that are available at auto parts storeslike the Autel MaxiIM IM608 PRO and IM508 — can assist customers at the shop or DIY customers in certain instances program replacement keys and restore the lost immobilizer's data, Sanabria says. The tools plug into the OBD port and automatically guide the customer through the process, making it more simple than replacing the computer in the vehicle. Jump-starting the battery A lot of people keep a set in their trunks to jump start a vehicle in an emergency, however it might not be a good idea for newer cars. These vehicles have many digital and electronic devices that communicate with one another. A voltage surge while a battery is hooked up to another battery could fry these components, rendering your vehicle unable to drive. Start the vehicle that is working and let it run for about two minutes before you connect the cables to the one that is disabled. Attach the red clip on the positive terminal of the battery that is good. (It will read “POS” or “+”.) Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled vehicle's hood. An engine block is a good option. Do not connect the black cable to the negative terminal of the dead battery as this could trigger a spark that ignites the gasoline in the engine bay. Once the cables are connected, you can start the vehicle and let it run for about five minutes. Then disconnect them in reverse. The battery in your Saab 9-3 will recharge while you drive. It will take a while for it to drop back down. It is recommended to purchase another key fob as soon as you can. The replacement of the one that works requires the installation and programming of a new computer chip. Replacement case Saab owners usually have only one car key, and if that is lost, they'll be charged. It's expensive to purchase the key and also requires replacing the CIM or TWICE for older models. In the event of theft or any other calamity, it is best to have an extra key. Don't buy a secondhand key even the case that it's “new.” Keys that are claimed as new from aftermarket sellers will not work and are almost guaranteed to fail at the critical moment. Most locksmiths can't help you when you only have one working key, and the dealer will charge you top dollar to replace the computer in your car to create a replacement. We can reset and reprogram the computer's EEEPROM in order to be able to accept a replacement key without the need to replace the entire system. This can save you lots of money. It's also cheaper than waiting until you lose your one key.