Technology Is Making 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. In The Key Lab to add a second key, it requires a new transponder, as well as special programming. This is usually handled by the dealer using a Tech2 diagnostic tool.
It can be costly. This is why you should always have a spare key on hand.
Transponder key
The transponder is a key equipped with an electronic chip. The chip transmits a signal when the key is inserted in the ignition. The car then checks the signal to see whether it matches the one in the key. If the signals are identical, the car will unlock itself and begin. This is an excellent way to protect your vehicle from theft.
Transponder keys are a popular addition to cars, but they are not as secure as traditional metal keys. While the metal component of a traditional key may be cut and copied the transponder is protected by an electronic chip. This chip contains an unique code that is programmed into a car's computer in order to identify it.
The car will recognize the Saab keyfob and allow it to be turned on. However, it will only do so if the key 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 is crucial to have a spare Saab key. This is especially true when you live in a rural area that is home to many car thieves. You can obtain a replacement key for your Saab by going to the dealership, without having to pay their expensive cost. In the majority of cases, you can have a new key made on-the-spot for less than half the cost you'd pay at dealerships.
Wired key
Saab cars usually come with two keys upon purchase. If you have only one, it is best to acquire an extra key fob as soon as you can, because if you lose it, the car will require the replacement of a CIM unit and the locking cylinders need to be replaced. This can be expensive especially for cars that are used.
The next step is to connect the wires for the column and row to the microcontroller. This is the most tedious aspect of the project and will require lots of soldering. There's no standard way to go about it, however, you should plan how to route and connect each column and row. There are 22 microcontroller wires and pins that you can connect for this keyboard. It has 5 rows and 17 column.
After the rows and column are joined It is now time to connect the key switches. Solder a diode on each key switch pin. This will protect the pins from current, preventing them from being cut off. The diode will only allow the flow of current to be in one direction, and it also has a an indicator of black color that shows the direction in which current will flow.
Sanabria says that a few of the tools sold in auto parts stores, such as the Autel MaxiIM IM608PRO or IM508 are able to assist customers who are shopping or DIY customers to program replacement keys and restore immobilizer information. The tools connect to the OBD port and automatically guide the user through the process, making it easier than replacing the computer in the vehicle.
Jump-starting the battery
The majority of people have a set of jumper cables in their trunks for emergencies, but jumping a battery on modern automobiles might not be the best choice. These vehicles are equipped with computers and digital devices which communicate with one another. A surge in voltage when a battery is hooked up to another could cause damage to these components and render your car unable to drive.
Connect the cables to the vehicle operating. Allow it to run for two minutes. Attach the red clip to the positive terminal of the battery that's good. (It will say "POS" or "+".) Attach the other end to a clear, unpainted metal surface underneath the hood of the damaged car. The engine block is a great option. Do not connect the black cable to the negative terminal of the dead battery as it could spark an ignition source that ignites gasoline in the engine bay.
Once the cables are connected, start the vehicle you are not using and let it run for about five minutes before you disconnect the cables in reverse order. The battery in your Saab 9-3 is recharged while you drive. It may take a while it to return to its original state. It's a good idea purchase a spare key fob as soon as you can, since replacing the one that works requires the installation of a new computer module and special programming to convince it that the lost keys aren't attempting to steal the car.
Replacement Case
Many Saab owners have only one key for their car and if they lose it, key, it will cost them. It's expensive to purchase keys and will require replacing the CIM or TWICE for older models. It's recommended to have a second key in the event of theft or any other catastrophe, and the best way is to purchase a second key as soon as you can. But don't buy a used key even if it's "new." Claimed-new keys from aftermarket sellers will not work and are almost guaranteed to fail at the crucial moment.
Most locksmiths aren't able to help when you only have one working key, and the dealer will charge you top dollar to replace the computer in your vehicle for a replacement. We can reset and reprogram the computer's EEEPROM in order to be able to accept a replacement key without the need to replace the entire system. This can save you a significant amount of money. It's also less expensive than waiting until you lose your sole key.