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20 Fun Informational Facts About Saab Ignition Key Replacement Saab Key Programming Saab cars made since 1994 have an immobilizer system made up of coded keys. A new transponder is required to allow the addition of an extra key, as well as special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool. It can be costly. It is recommended to always have an extra set of keys on hand. Transponder key The transponder can be described as a key equipped with an electronic chip. The chip sends a signal when the key is placed into the ignition. The car then checks the signal to determine whether it is identical to the one that is in the key. If the signals are identical, the car will unlock itself and begin. This is a great way to prevent auto theft and keep your car safe from thieves. Transponder keys are a common feature in cars, but you should be aware they are not as secure as traditional metal keys. While the metal component of a conventional key can be cut and copied but a transponder key is protected by an electronic chip. The chip has a unique code encoded into the car's system to identify it. The car will recognize the Saab keyfob and allow it to be turned on. The car can only recognize the key fob if it is equipped with an unmodified chip and programmed to match. The car will not start in the event that the key has not been programmed to match. It is essential to have a spare Saab key. This is especially true especially if you reside in a rural region where there are many car thieves. The good thing is that you can find a new key for your Saab without having to go to an auto dealership and pay the high prices they ask. In the majority of instances, you can get an original key made on the spot for less than half the cost you would pay at a dealer. Wired key Saab cars are usually supplied with two keys. If you have only one, it is recommended to purchase an additional key fob as soon as possible in case you lose it the car will require an entirely new CIM unit, and the locking cylinders will have to be replaced. This can be expensive especially for used vehicles. The next step is to connect the row and column wires to the microcontroller. This is the most difficult part of the project and requires a significant deal of soldering. It's not a standard way to do it, but you should think about how to route and connect each column and row. For this keyboard, there are 5 rows and 17 columns, so there will be 22 microcontroller pins and wires to connect. After the rows and column are soldered together It is now time to connect the key switches. Solder a diode to each key switch pin. This will protect the pins on the key switch from current and also prevent them from being shorted. A diode lets current only flow in one direction. It is equipped with a visible indicator, a black band, that shows the direction in which the current will flow. Some of the tools available at auto parts stores -- such as the Autel MaxiIM IM608 Pro and IM508 -- can 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 OBD ports and help the customer through each step and make the process more straightforward than replacing the vehicle's computer. Jump-starting the battery A lot of people keep an item in their trunks to jump start a vehicle in an emergency, but it might not be a good option for vehicles with newer technology. These vehicles are equipped with a number of computers and digital devices that communicate with each other. A voltage surge when the battery is connected another can fry the components and render your vehicle unusable. Connect the cables to the vehicle that is operating. Let it run for two minutes. Attach the red clip on the positive terminal of the good battery. (It will read "POS" or "+".) Attach the other end of the black cable to a clean, unpainted metal surface beneath the damaged vehicle's hood. saab 93 key is a good option. Do not connect the black cable to the negative terminal of the dead battery as this could cause an ignition source that ignites gasoline in the engine bay. Once the cables are connected the vehicle you are not using and let it run for approximately five minutes before disconnecting the cables in reverse order. Be aware that the battery of the Saab 9-3 gets recharged during your drive, which means it can take a while for the battery to come down. You should purchase another key fob as soon as possible. Replacing the only one that works requires the installation and programming of a new computer chip. Replacement case Saab owners typically only have one car key, and if that is lost, they will be charged. It's expensive to purchase a key and requires replacing the CIM or TWICE for older models. It's recommended to have a second key in case of theft or any other catastrophe, and the best way is to buy an extra key as quickly as you can. Even if the key is "new" it will not function. The dealer will charge you the most expensive dollar if you have only one working key. We can, however, reset and reprogram the computer's EEPROM in order to prepare it to accept the new key without having to replace the whole system. That can save you a significant amount of money. It's also much less expensive than waiting until you lose your only key.