Saab Key Programming
Saab cars that were built prior to 1994 feature an immobilizer mechanism built on coded keys. The addition of a key requires a new transponder and special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool.
This can be expensive. This is the reason why you should always have a spare key available.
Transponder key
The transponder is a type of key that has an electronic chip. The chip transmits a signal when the key is inserted into the ignition. The car then analyzes the signal to determine if it matches the one on the key. If the signals match the car will be able to unlock itself and begin. This is a great method to guard your car against theft.
Transponder keys can be an extremely popular accessory for cars, but they're not as safe 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. The chip is equipped with an individual code that is embedded into the car's computer to identify it.
When a Saab key fob is used, the car recognizes it and allows it to turn on. However, it is only able to do this if the key fob is equipped with a chip that is not modified that has been programmed to match the original. The car will not start when the key isn't programmed to match.
It is vital to have an extra Saab key. This is especially important when you live in a rural area that is home to numerous car thieves. You can purchase a new key for your Saab by visiting the dealership, without having to pay their pricey costs. In most cases, you can have an original key made on the spot for less than half the cost you would pay at the dealer.
Key for Wired
Saab cars are usually supplied with two keys. If you only own one, you need to purchase an additional key as soon as you can. This is because if the key is lost the car will require a new CIM and the locking cylinders replaced. This could be expensive 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 toughest part of the project, and it will require lots of soldering. It's not a common way to go about it, however, you should think about how to route and solder each column and row. There are 22 microcontroller wires as well as pins to connect to this keyboard. It includes 5 rows and 17 column.
After the columns and rows are soldered together It is now time to connect the key switches. To do this you must place an inverter over each pin of the key switch and then solder it. This will shield the pins from current, and prevent them from being cut off. A diode can only allow current to flow in one direction, and it has the black band as a visual indicator that indicates the direction current will flow.
Some of the tools you can find at auto parts stores -like the Autel MaxiIM IM608 PRO and IM508 -- could aid shop customers or DIY customers in some cases create replacement keys and restore lost immobilizer information, Sanabria says. The tools plug into the OBD port and automatically guide the customer through the procedure, making it much easier than replacing the computer in the vehicle.
Jump-starting the battery
A lot of people keep a set of jumper cables in their trunks to use in an emergency, but jumping a battery on modern automobiles might not be the best idea. These vehicles are equipped with numerous computers and digital devices which communicate with one another. A voltage surge while the battery is connected to another one could damage the components and render your car unable to drive.
Start the working vehicle and let it run for about two minutes before connecting the cables to the battery that is not working. Attach the red clip to the positive terminal of the good battery. (It will read "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the vehicle's hood. An 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 a spark, which would ignite gasoline in the engine compartment.
Once the cables are connected the vehicle that has been disabled and allow it to run for around five minutes before disconnecting them in reverse order. The battery in your Saab 9-3 will be recharged while you drive. It takes a while for it to fall back. It's a good idea to purchase a spare fob as soon as you can, because replacing the one that works requires the installation of a new computer module and special programming to convince it that your missing keys aren't in the process of trying to steal the car.
Replacement Case
Saab owners often only have one car key, and if that is lost, they will be charged. It's expensive to add keys and will require replacing the CIM or TWICE for older models. It's recommended to have a backup key in the event of theft or other disaster the best solution is to buy an extra key as quickly as you can. However, don't purchase a secondhand key, even the case that it's "new." Keys that are claimed to be new from aftermarket sellers will not perform and are almost certain to fail at the crucial moment.
saab 9-3 key fob programming will charge you top dollar if you only have one working key. However, we can reset and reprogram the computer's EEPROM to accept the new key, without replacing the whole system. This could save you a lot of money. It's also cheaper than waiting until you lose your only key.