Saab Key Programming
Saab cars made since 1994 feature an immobilizer system that is based on keys that are coded. In order to add a second key, it requires a new transponder, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.
This can be expensive. It is always advisable to keep a spare set of keys at hand.
Transponder key
The transponder can be described as a key with an electronic chip. The chip transmits a signal when the key is placed into the ignition. The car will then check the signal to determine whether it is identical to the one in the key. If the signals are the same it will open itself and begin. This is a great method to avoid car theft and keep your car safe from thieves.
Transponder keys can be a popular addition to cars, but they're not as safe as traditional keys made of metal. While the metal part of a traditional key could be cut and copied, a transponder is protected by an electronic chip. The chip contains a unique code which is 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. However, it will only do this if the fob has a non-modified chip that has been programmed to match. The car will not start if the key is not programmed to match.
It's important to make sure that you have a spare key for your Saab. This is especially important especially if you reside in a rural area, where there are numerous car thieves. You can purchase a new key for your Saab by going to the dealership and not paying their pricey prices. In most cases, you can have an original key made on the spot for less than half the cost you'd pay at a dealer.
Key for Wired
Saab cars usually come with two keys when they are new. If you have only one, it's a good idea to get an additional key fob as soon as is possible as if you lose it, the car will require an entirely new CIM unit, and the locking cylinders will need to be replaced. This can be costly particularly for used cars.

The next step is connecting the wires for columns and rows to your microcontroller. This is the most difficult part of the project and will require a great amount of soldering. It's not a common way to do it, but you need to think about how to route and connect each column and row. 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 joined It is now time to connect the key switches. Solder a diode to each key switch pin. This will protect the pins from current, thus preventing them from getting shorted. A diode only allows the flow of current to be in one direction, and it also has a a black band visual indicator that indicates the direction current will flow.
Some of the tools you can find at auto parts stores -- such as the Autel MaxiIM IM608 Pro and IM508 -- may help customers in the shop, or even DIY customers in certain cases program replacement keys and restore lost immobilizer data, Sanabria says. The tools connect to the OBD port and automatically guide the user through the procedure, making it simpler than replacing the computer in the vehicle.
Jump-starting the battery
Most people keep the set in their trunks to start a car in case of emergency, however it might not be the best idea for newer cars. These vehicles are equipped with digital and computers that communicate with each other. A surge in voltage when batteries are connected to another battery could damage the components, rendering your car undriveable.
Start the working vehicle and allow it to run for approximately two minutes before connecting the cables to the disabled one. Attach the red clip to the positive terminal on the good battery (it will have "POS" or "+" on it). Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled car's hood. The engine block is an ideal choice. Don't connect the black cable to the negative terminal on the dead battery because it could ignite an ignition that ignites the gasoline in the engine bay.
After the cables have been connected, you can start the car and let it run for about five minutes. Then, disconnect them in reverse. The battery in your Saab 9-3 will recharge while you drive. It will take some time for it to fall back. It's a good idea to buy a spare key fob as soon as you can, since replacing the only functioning one requires the installation of a brand new computer module and a special program to convince it that your missing keys aren't in the process of trying to steal the car.
saab key programming near me have one key for their car and if they lose it, key, it will cost them. It's expensive to add an additional key and it requires replacing the CIM or TWICE in the case of older models. It is recommended to have a backup key in case of theft or any other catastrophe and the most effective way is to purchase a second key as soon as you can. Don't purchase a used key, even if it's "new." Claimed-new keys from a second-hand store will not perform and are almost certain to fail at the critical moment.
Most locksmiths can't help you when you only have one working key, and the dealer will charge high prices to replace the computer in your vehicle to make a replacement. We can, however, reset and re-program your computer's EEPROM to accept the new key, without replacing the entire system. This can save you a significant amount of money. It's cheaper to do this instead of waiting until you lose your only key.