Saab Key Programming
Saab cars manufactured since 1994 feature an immobilizer system based on coded keys. A new transponder is required for inclusion of an additional key, and special programming. This is usually done by the dealer, using a specially-designed Tech2 diagnostic tool.
It can be costly. It is always advisable to keep a spare set of keys in your possession.
Transponder key
The transponder can be described as a key with an electronic chip. This chip sends out a signal when the key is put into the ignition. The car will check to see if the signal matches the one on the key. If the signals match it will open itself and begin. This is a great way to guard your car against theft.
Transponder keys could be a popular addition to automobiles, but they are not as secure as traditional keys made of metal. While the metal portion of a conventional key can be cut and copied the transponder is protected by an electronic chip. This chip contains an unique code that's programmed into the car's computer in order to identify it.
When a Saab key fob is used, the car recognizes it and allows it to turn on. The car can only recognize the key fob if it is equipped with a chip that is unmodified and programmed to match. Otherwise, the car would refuse to accept the key and will not start.
It is crucial to have a spare Saab key. This is especially true for those who live in a rural location where there are a lot of car thieves. The good part is that you can obtain a replacement key for your Saab without having to go to an auto dealer and pay the high prices that they demand. You can have the replacement key on the spot at a fraction of the price you'd pay at a dealership.
Wired key
Saab cars are usually provided with two keys. If you have only one, it's best to acquire an extra key fob as soon as you can since if you lose it, the car will require the replacement of a CIM unit and the locking cylinders will have to be replaced. This can be costly particularly if you are buying a second-hand car.
The next step is to wire the column and row wires to the microcontroller. This is the toughest part of the project and it will require a lot of soldering. It's not a common way to do it, but you should determine how to route and solder each column and row. There are 22 microcontroller wires and pins that you can connect to this keyboard. It includes 5 rows and 17 columns.
After the columns and rows are joined after which it is time to connect the key switches. Solder saab key fob replacement thekeylab.co.uk on each key switch pin. This will shield the pins from current, and prevent them from being shortened. A diode allows current to only flow in only one direction. It has a visual indicator of a black line that indicates which direction current will flow.
Sanabria says that a few of the tools that are sold in auto parts stores, like the Autel MaxiIM IM608PRO and the IM508 are able to assist customers who are shopping or DIY customers to program replacement keys and restore data from the immobilizer. The tools connect to the OBD port and automatically guide the user through the process, making it more simple than replacing the computer in the vehicle.
Jumpstarting the battery
Most people keep a set of jumper cables in their trunk to use in an emergency, but jumping a battery on modern vehicles may not be the best choice. These cars have a variety of computers and digital devices that communicate with each other. A surge in voltage when a battery is hooked up to another one could damage these components, rendering your car undriveable.
Start the working vehicle and allow it to run for approximately two minutes before connecting the cables to the battery that is not working. Attach the red clip to 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 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 result in sparks, which could ignite the gasoline in the engine compartment.
After the cables have been connected, you can begin the car and let it run for approximately five minutes. Then disconnect the cables in reverse. Keep in mind that the battery on the Saab 9-3 gets recharged when you drive, so it will take a while for the battery to go back down again. It's a good idea purchase a spare fob as soon as you can, since replacing the only working one requires the installation of a brand new computer module and special programming to convince it that the lost keys are not trying to steal the car.
Replacement case
Saab owners typically only have one car key, and if it is lost, they will be charged. The reason is that it's expensive to purchase a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. In the event of theft, or any other catastrophe, it is best to have an extra key. Don't purchase a used key, even if it's "new." Keys that are claimed-new purchased from third-party sellers won't work and are likely to fail at the crucial moment.
The majority of locksmiths won't be able to help when you only have one working key, and the dealer will charge for the cost of replacing the computer in your vehicle to make a replacement. We can, however, reset and reprogram the computer's EEPROM in order to prepare it to accept the new key, without replacing the whole system. This could help you save money. It's much cheaper than wait until you loose the only key.