Saab Key Programming
Saab cars produced since 1994 feature an immobilizer system based on key codes. A new transponder is required in order to enable the inclusion of an additional key, as well as special programming. This is usually done at the dealer using a Tech2 diagnostic tool.
This can be expensive. You should always keep a spare set of keys on hand.
Transponder key
The transponder key is a piece of hardware equipped with an electronic chip. It sends a signal back to the car when it is inserted into the ignition. The car then analyzes the signal to determine whether it is the same as the one that is in the key. If the signals match the car will be able to unlock itself and start. This is a fantastic way to protect your car from theft.
Transponder keys are a popular feature in automobiles, but it is important to know that they aren't as secure as classic keys made of metal. The metal portion of a traditional key can be easily cut and copied, whereas the transponder is protected by an electronic chip that safeguards it. The chip is a unique code that's programmed into a car's computers in order to identify it.
The car will recognize the Saab keyfob and permit it to turn on. However, it will only do this if your key fob is equipped with a chip that is not modified that has been programmed to match the original. Otherwise, the car will refuse to accept the key and will not start.
It is crucial to have a spare Saab key. This is particularly true for those who live in a rural area that is home to numerous car thieves. The good part is that you can find a new key for your Saab without needing to visit an auto dealer and pay the high costs that they ask. In the majority of instances, you can get a brand new key made right on the spot at a fraction of the cost of what you'd pay at a dealer.
Key for Wired
Saab cars are usually supplied with two keys. If you own only one, it is recommended to get an additional key as soon as you can. This is because if it's lost the car will require an entirely new CIM and the locking cylinders replaced. This can be expensive especially for cars that are used.
The next step is to connect the wires of the column and row to the microcontroller. This is the most laborious part of the project and will require a lot of soldering. There is no standardized way to do this, but it is crucial to plan the way you'll route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns. saab 9-3 replacement key means there will be 22 microcontroller wires and pins to connect.
After the columns and rows are joined after which it is time to connect the key switches. Solder a diode on each key switch pin. This will protect the pins from current and prevent them from being cut off. A diode permits current to only flow in one direction. It features a visual indicator with a black band that indicates the direction in which current will flow.
Sanabria says that some of the tools offered in auto parts stores, like the Autel MaxiIM IMM608PRO and IM508 are able to assist shoppers or DIY customers to program replacement keys and restore immobilizer information. The tools connect to OBD ports and guide the customer through each step which makes the process much easier than replacing the vehicle's computer.
Jumpstarting the battery
The majority of people have a set of jumper cables in their trunk for emergencies, but jumping a battery for newer cars might not be the most efficient option. These vehicles are equipped with numerous electronic devices and computers that communicate with each other. A surge in voltage when the battery is connected another battery could damage the components making your car unusable.
Connect the cables to the vehicle that is working. Allow it to run for two minutes. Attach the red clip to the positive terminal of the battery that's good. (It will read "POS" or "+".) Attach the other end to a clean, unpainted metal surface beneath the hood of the damaged car. The engine block is a good option. Do not connect the black cable to the negative terminal of the dead battery because it could ignite an ignition that ignites the gasoline in the engine bay.
Once the cables are connected, you need to begin the car and let it run about five minutes. Then disconnect them in reverse. Remember that the battery on your Saab 9-3 is charged when you drive, and it will take a while for the battery to go down. It is recommended to purchase an additional key fob as soon as you can. Replacing the only one that works requires the installation and programming of a brand new computer chip.
Replacement Case
Saab owners typically only have one car key, and if that is lost, they will be charged. It's expensive to buy a key and 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 an extra key as quickly as you can. Even it's "new", it won't work.
The dealer will charge the highest dollar if you only have one working key. We can reset and reprogram the computer's EEEPROM in order to make it ready to accept a new key without replacing the entire system. This can save you a significant amount of money. It's also much less expensive than waiting until you lose the only key.