Saab Key Programming Saab cars made since 1994 come with an immobilizer system that is based on codes for keys A new transponder is required for the addition of an additional key, as well as special programming This is usually done by the dealer using the Tech2 diagnostic tool It can be costly It is always advisable to keep an extra set of keys on hand Transponder key The transponder keys are keys equipped with an electronic chip It sends a signal back to the car when it is inserted into the ignition The car checks to see whether the signal matches with the one on the key If the signals are the same it will open itself and begin This is a great way to stop car theft and keep your car secure from thieves Transponder keys are a favored feature in automobiles, however you should be aware they are not as secure as classic keys made of metal The metal portion of a traditional key can be easily cut and copied, however transponders have an electronic chip that guards it The chip is a unique code which is programmed into a car's computer in order to identify it The car will recognize the Saab keyfob and allow it to turn on But, it's only able to do this if the key fob is equipped with a chip that is not modified that has been programmed to match it The car will not start in the event that the key has not been programmed to match It's crucial to ensure that you have a spare key for your Saab This is especially true if you live in a rural region where there are a lot of car thieves You can purchase a new key for your Saab by going to the dealership and not paying their pricey costs In most instances, you can get a new key made on-the-spot at a fraction of the cost of what you'd pay at dealerships Key for Wired Saab cars typically come with two keys when new If you have only one, it is best to acquire an additional key fob as soon as possible, because if you lose it, the car will require the replacement of a CIM unit, and the locking cylinders have to be replaced This can be expensive, especially for used cars The next step is connecting the wires of columns and row to your microcontroller This is the most difficult part of the project and will require a great deal of soldering There's no standard way to accomplish this, however it's important to plan out the way you'll route and solder the rows and columns For this keyboard, there are 5 rows and 17 columns, so there will be 22 microcontroller pins and wires to connect After the columns and rows are soldered together It is now time to connect the key switches To do this, put an inverter over each pin on the key switch and solder it This will shield the pins that are used for key switches from current and keep them from being shorted A diode only allows the flow of current to be in one direction, and it comes with a an indicator in black that indicates the direction in which current will flow Some of the tools offered at auto parts stores- such as the Autel MaxiIM IM608 Pro and IM508 -- could help customers in the shop, or even DIY customers in some cases replace keys in the program and restore lost immobilizer data Sanabria says The tools connect to the OBD port and automatically guide the user through the process, making it more simple than replacing the computer inside the vehicle Jump-starting the battery A majority of people keep the set in their trunk to start a car in case of emergency, but it may not be the best idea for cars with more modern technology These vehicles are equipped with numerous digital and computer systems that communicate with each other A surge in voltage when a battery is connected to another can fry the components making your car unusable Connect the cables to the vehicle that is operating Let it run for two minutes Attach https//wwwautokeys-r-uscouk/2981-2/ to the positive terminal of the good battery It will say "POS" or "+" Attach the other end of the black cable to a clean, unpainted metal surface underneath the disabled car's hood The engine block is an ideal choice Don't connect the black cable to the negative terminal of the dead battery, since it could spark an ignition spark that ignites the gasoline in the engine bay After the cables have been connected, you can start the vehicle and allow it to run for around five minutes Then, disconnect them in reverse Be aware that the battery in the Saab 9-3 gets recharged when you drive, and it will take a while to get the battery back to normal It's a good idea buy a spare key fob as soon as you can, since replacing the sole working one requires the installation of a brand new computer module and a special program to convince it that your missing keys aren't in the process of trying to steal the car Replacement Case Many Saab owners have only one key for their car and if they lose it, key, it will cost them It's costly to add the key and also requires replacing the CIM or TWICE in the case of older models In the event of theft, or other catastrophe, it is best to have a spare key However, don't purchase a secondhand key, even if it's "new" Keys that are claimed to be new from sellers selling aftermarket keys won't work and are almost guaranteed to fail at the crucial moment The dealer will charge the highest dollar if you only have one working key We can, however, reset and reprogram the computer's EEPROM to prepare it to accept a new key without replacing the entire system That can help you save money It's also a lot cheaper than waiting until you lose the only key