Saab Key Programming
Saab cars that were built prior to 1994 have an immobilizer system made up of coded 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 a Tech2 diagnostic tool.
It can be costly. saab keys is the reason why you should always keep a spare key in your possession.
Transponder key
The transponder is a piece of key equipped with an electronic chip. This chip sends a signal when the key is placed into the ignition. The car will then check the signal to determine if it matches the one on the key. If the signals are identical the car will be able to unlock itself and start. This is a great way to stop auto theft and keep your car safe from thieves.
Transponder keys can be an extremely popular accessory for automobiles, but they are not as safe as traditional keys made of metal. While the metal part of a traditional key may be cut and copied the transponder is protected by an electronic chip. This chip contains an unique code that is inserted into a car's computer order to identify it.
The car will recognize the Saab keyfob and permit it to turn on. The car will only recognize the key fob if it has an unmodified chip and has been programmed to match. If not, the car will refuse to accept the key and will not start.
It is essential to ensure that you have an extra key for your Saab. This is especially important when you live in a rural area, where there are a lot of car thieves. You can purchase a new key for your Saab by visiting the dealership and not paying their high cost. In most instances, you can get a new key created on-the-spot at a fraction of the price of what you'd pay at a dealer.
Wired key
Saab cars typically come with two keys when new. If you only have one, it is a good idea to get an additional key fob as quickly as you can, because if you lose it, your car will require the replacement of a CIM unit, and the locking cylinders will need to be replaced. This can be costly particularly if you are purchasing a used car.
The next step is connecting the wires for columns and row to your microcontroller. This is the most difficult part of the project and will require a good deal of soldering. There's no standard way to accomplish this, however it is essential to determine the way you'll route and solder the rows and columns. There are 22 microcontroller wires and pins to connect for this keyboard. It has five rows and 17 columns.
After the columns and rows are soldered, it's the time to connect them to key switches. Solder a diode to each key switch pin. This will protect the pins from current and prevent them from being shortened. A diode can only allow current to flow in one direction, and it comes with a an indicator in black that indicates the direction in which current will flow.
Sanabria states that a number of the tools sold in auto parts stores, including the Autel MaxiIM IM608PRO or IM508 will assist shoppers or DIY customers to program replacement keys and restore the immobilizer's data. The tools connect to the OBD port and guide the customer through the process, making it easier than replacing the computer in the vehicle.
Jumpstarting the battery
The majority of people have a set of jumper cables in their trunks to use in an emergency however, jumping a battery for newer automobiles might not be the best option. These cars are equipped with a variety of digital and computer systems that communicate with each other. A surge in voltage while a battery is hooked up to another can fry these components, rendering your car undriveable.
Connect the cables to the vehicle operating. Allow it to run for two minutes. Attach the red clip to the positive terminal of the battery that is good. (It will say "POS" or "+".) Attach the other end of the black cable to a clean, unpainted metal surface beneath the damaged car's hood--the engine block is a good option. The black cable should not be connected to the negative terminal of the dead battery. This could trigger sparks, which would ignite the gasoline in the engine compartment.
After the cables have been connected, you need to start the vehicle and allow it to run for around five minutes. Then, disconnect the cables in reverse. Remember that the battery on your Saab 9-3 is recharged when you drive, so it will take a while for the battery to come back to its original level. 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 brand new computer module and special programming to convince it that your missing keys are not trying to steal the car.
Replacement case
Many Saab owners only have one key for their car and if they lose it, the cost will be. The reason is that it's expensive to purchase a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. It is best to have a second key in the event of theft or other disaster and the most effective way is to purchase a second key as early as you can. However, don't purchase a secondhand key, even it's "new." Claimed-new keys from sellers selling aftermarket keys won't work and are almost guaranteed to fail in the most critical moment.
The dealer will charge the highest dollar for only one working key. However, we can reset and re-program your computer's EEPROM to prepare it to accept an alternative key without replacing the entire system. This could save you a lot of money. It's less expensive rather than wait until you loose the only key.