Saab Key Programming
Saab cars manufactured since 1994 utilize an immobilizer system based on key codes. Adding an extra key requires the purchase of a new transponder as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.
The issue is that this could be quite costly. Always keep a spare set of keys available.
Transponder key
The transponder can be described as a key that has an electronic chip. This chip sends a signal when the key is inserted into the ignition. The car then analyzes the signal to determine whether it is the same as the one in the key. If the signals are in sync it will open and start. This is an excellent way to protect your vehicle from theft.
Transponder keys are a popular addition to automobiles, but they are not as secure as traditional keys made of metal. The metal component of a traditional key is easily cut and copied, however the transponder is protected by an electronic chip that protects it. The chip is equipped with a unique code that is encoded into the car's system 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 is unmodified and has a chip that has been programmed to match the original. If not, the car will reject the key and refuse to start.
It's important to make sure that you have a spare key for your Saab. This is particularly true when you live in a rural area with numerous car thieves. The good thing is that you can find a new key for your Saab without needing to visit a dealer and pay the expensive prices that they charge. In most instances, you can get a new key made on-the-spot for less than half the price of what you'd pay at the dealer.
Wired key
Saab cars typically come with two keys upon purchase. If you only have one, it is recommended to purchase an additional key fob as soon as is possible, because if you lose it, the car will require a new CIM unit, and the locking cylinders will have to be replaced. This could be expensive, especially if you are buying a used car.
The next step is to connect the wires for the column and row to the microcontroller. This is the toughest aspect of the project and it will require lots of soldering. There is no standard method to do this, but it is essential to determine the way you'll route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns, so there will be 22 microcontroller wires and pins to connect.
After the columns and rows are soldered together It is now time to connect the key switches. Solder a diode to each key switch pin. This will shield the pins from current, thus preventing them from being cut off. A diode allows current to only flow in only one direction. It has a visual indicator that is black, that indicates which direction current will flow.
A few of the tools that are available at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 -- may help shop customers or even DIY customers in some cases programme replacement keys and recover lost immobilizer data Sanabria says. The tools connect to the OBD port and automatically guide the customer through the process, making it more simple than replacing the computer in the vehicle.
Jump-starting the battery
Most people keep an assortment of tools in their trunks to start a vehicle in an emergency, but it might not be a good idea for vehicles that are newer. These vehicles are equipped with many 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 vehicle unable to drive.
Connect the cables to the vehicle that is working. Let it run for two minutes. Attach saab 93 key programming on the positive terminal of the battery that's good. (It will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface under the disabled car's hood. The engine block is an ideal choice. The black cable is not to be connected to the negative terminal of the dead battery. This could trigger sparks, which would ignite the gasoline inside the engine compartment.
Once the cables are connected the disabled vehicle and let it run for about five minutes before disconnecting the cables in reverse order. The battery in the Saab 9-3 will charge as you drive. It will take some time for it to return to its original state. It's a good idea buy a spare key fob as soon as you can, because replacing the sole working one requires the installation of a brand new computer module and a special program to convince it that your lost keys aren't attempting to steal the car.
Replacement Case
Saab owners usually only have one car key, and if that is lost, they will be charged. It's costly to add keys and will require replacing the CIM or TWICE for older models. It's recommended to have a spare key in case of theft or other disaster and the best option is to purchase an additional key as quickly as you can. Don't buy a secondhand key even if it's "new." Claimed-new keys purchased from third-party sellers won't work and are almost guaranteed to fail at the critical moment.
Most locksmiths can't help you in the event that you only have one working key, and the dealer will charge you for the cost of replacing the computer in your vehicle to make a replacement. However, we can reset and reprogram the computer's EEPROM to accept a new key without replacing the whole system. This could save you a lot of money. It's less expensive than waiting until you lose the sole key.