Does Technology Make Saab Ignition Key Replacement Better Or Worse?
Saab Key Programming
Saab cars built since about 1994 have an immobilizer feature that is based on codes for keys. A new transponder is required to allow the addition of an additional key, as well as special programming. This is usually done at the dealer using a special Tech2 diagnostic tool.
The issue is that this could be extremely expensive. It is always advisable to keep an extra set of keys available.
Transponder key
The transponder keys are keys with an electronic chip that transmits a signal to the car when it is put into the ignition. The car is able to check whether the signal is the same as the one on the key. If both signals match it will open itself and begin. This is a great method to stop auto theft and keep your vehicle secure from thieves.
Transponder keys are an increasingly popular feature in automobiles, but you should be aware that they aren't as secure as classic keys made of metal. While the metal parts of a conventional key can be cut and copied the transponder is protected by an electronic chip. The chip has a unique code that's programmed into a 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. But, it's only able to do so if the key fob has a non-modified 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 important to have an extra Saab key. This is especially important for those who live in a rural area where there are numerous car thieves. The good part is that you can find a new key for your Saab without needing to visit a dealer and pay the hefty prices that they ask. In most instances, you can get a new key made on-the-spot at a fraction of the price of what you'd pay at a dealer.
Wired key
Saab cars usually come with two keys when they are new. If you only have one, it's a good idea to get an extra key fob as quickly as you can since if you lose it, your car will require the replacement of a CIM unit, and the locking cylinders have to be replaced. This can be costly, especially for used cars.
The next step is to connect the wires for columns and row to your microcontroller. This is the most tedious aspect of the project and it will require lots of soldering. There isn't a standard way to accomplish this, however it's important to plan out 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 pins and wires to connect.
After the columns and rows are soldered, it's time to connect them to the key switches. Solder a diode to each key switch pin. This will protect the pins of the key switch from current and prevent them from being shorted. A diode lets current only flow in one direction. It comes with a visual indicator with a black band that indicates which direction current will flow.
Sanabria says that a few of the tools available in auto parts stores, such as the Autel MaxiIM IM608PRO and the IM508 are able to assist shoppers or DIY customers to program replacement keys and restore immobilizer information. The tools plug into OBD ports and guide the customer through each step, making the process easier than replacing the vehicle's computer.
Jump starting the battery
The majority of people have an item in their trunks to jump-start their car in case of emergency, but it may not be the best option for vehicles with newer technology. These vehicles are equipped with numerous digital and computers that communicate with one another. A voltage surge while the battery is connected to another one could damage these components and render your car unable to drive.
Start the vehicle that is working 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 on 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 beneath the damaged car's hood. The engine block would be a good choice. The black cable should not be connected to the negative terminal of the dead battery. This could trigger sparks, which would ignite gasoline in the engine compartment.
After the cables have been connected, you should start the vehicle and allow it to run for around five minutes. Then disconnect the cables in reverse. Remember that the battery on the Saab 9-3 will be charged when you drive, so it may take some time to get the battery down. It's a good idea invest in a spare key fob as soon as you can, since replacing the one that works requires the installation of a new computer module and a special program to convince the system that your lost keys are not trying to steal the car.
Replacement Case
Many Saab owners have only one key for their car and if they lose that they'll be charged. The reason for this is that it's costly to buy a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. In the event of theft, or any other disaster, it is best to have a spare key. Even when saab ignition key replacement is "new", it won't work.
Most locksmiths aren't able to help if you have only one working key, and the dealer will charge you top dollar to replace the computer in your car to create a replacement. We can reset and reprogram the computer's EEEPROM to be able to accept a replacement key without replacing the entire system. This could save you a significant amount of money. It's also a lot cheaper than waiting until you lose your sole key.