20 Best Tweets Of All Time About Saab Ignition Key Replacement Saab Key Programming    Saab cars built since 1994 utilize an immobilizer system that relies on keys that are coded. To add an additional key, you need a new transponder, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.      The problem is that this can be very expensive. It is recommended to always have a spare set of keys available.    Transponder key    The transponder is a type of key that is equipped with an electronic chip. The chip sends a signal when the key is inserted into the ignition. The car then analyzes the signal to see whether it matches the one in the key. If the signals match the car will then open and start. This is a great way to prevent car theft and keep your car safe from thieves.    Transponder keys could be an increasingly popular feature for cars, but they are not as safe as traditional keys made of metal. While the metal portion of a conventional key can be cut and copied however, a transponder is secured by an electronic chip. The chip contains a unique code which is programmed into a car's computers in order to identify it.    The car will recognize the Saab keyfob and allow it to be turned on. However, it can only do this if the key fob has an unmodified chip that has been programmed to match the original. The car won't start in the event that the key has not been programmed to match.    It is essential to have an extra Saab key. This is particularly important especially if you reside in a rural area, where there are a lot of car burglars. The good thing is that you can obtain a replacement key for your Saab without having to go to a dealership and pay the expensive prices that they demand. In most cases, you can have an original key made on the spot at a fraction of the cost you'd pay at a dealer.    Wired key    Saab cars usually come with two keys when new. If you only have one, it's a good idea to get an extra key fob as quickly as you can in case 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 to connect the wires for the column and row to the microcontroller. This is the toughest component of the project and it will require a lot of soldering. There is no standardized way to accomplish this, but it is crucial to plan the routes you'll use to solder the columns and rows. There are 22 microcontroller pins and wires to connect to this keyboard. It has 5 rows and 17 column.    After the columns and rows are soldered, it's time to connect them to the key switches. Solder a diode on 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 that is black, that shows which way current will flow.    g28carkeys.co.uk states that some of the tools sold in auto parts stores, including the Autel MaxiIM IM608PRO or IM508, can help customers who are shopping or DIY customers to program replacement keys and restore immobilizer information. The tools plug into OBD ports and guide the user through each step which makes the process much easier than replacing the vehicle's computer.    Jump-starting the battery    The majority of people have a set of jumper cables in their trunk to use in an emergency, but jumping a battery in newer vehicles may not be the best idea. They have numerous electronic devices and computers that communicate with each other. A voltage surge while the battery is connected to another one could damage these components and render your car undriveable.    Start the working vehicle and allow it to run for around two minutes before you connect the cables to the one that is disabled. Attach the red clip to the positive terminal of the battery that is good (it will have "POS" or "+" on it). Attach the other end of the black cable to a clean, unpainted metal surface underneath the car's hood. The engine block would be a good choice. The black cable is not to be connected to the negative terminal of the dead battery. This could result in sparks, which could ignite the gasoline in the engine compartment.    After the cables have been connected, you should begin the car and let it run for about five minutes. Then, disconnect them in reverse. The battery in your Saab 9-3 will recharge as you drive. It may take a while it to recharge again. You should invest in a second key fob, as soon as you can. Replacing the only one that works requires the installation and programming of a new computer chip.    Replacement case    Many Saab owners have only one key for their car and if they lose it, it's going to cost them. The reason for this is that it's not inexpensive to buy a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. It's recommended to have a spare key in case of theft or any other catastrophe and the most effective way is to purchase 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 reset and reprogram the computer's EEEPROM to make it ready to accept a new key without the need to replace the entire system. This can save you a lot of money. It's less expensive instead of waiting until you lose the only key. 

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