Saab Key Programming
Saab cars that were built prior to 1994 feature an immobilizer mechanism that is based on codes for keys. A new transponder is required to allow the addition of an extra key, and special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.
This can be expensive. You should always keep an extra set of keys in your possession.
Transponder key
The transponder is a type of key that is equipped with an electronic chip. The chip transmits a signal when the key is inserted into the ignition. The car then checks to see whether the signal matches with the one on the key. If both signals match the car will be able to unlock itself and begin. This is a great method to deter car theft and keep your vehicle safe from thieves.
Transponder keys are an extremely popular accessory for cars, but they are not as safe as traditional keys made of metal. The metal component of the traditional keys can be easily copied and cut, but the transponder is protected by an electronic chip that safeguards it. The chip is a unique code that is inserted into a car's computer order to identify it.
The car will recognize the Saab keyfob and permit it to be turned on. But, it's only able to do this if the fob has a non-modified chip that has been programmed to match it. The car won't start in the event that the key is not programmed to match.
It is crucial to have an extra Saab key. This is particularly important especially if 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 paying their pricey cost. You can have an original key made on the spot for less than half of the cost you would pay at a dealership.
Key for Wired
Saab cars are usually supplied with two keys. If you have only one, it is a good idea to get an extra key fob as quickly as you can in case you lose it, the car will require a new 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 difficult part of the project and will require a great amount of soldering. There isn't a standard way to do this, but it is important to think about how you will route and solder the columns and rows. There are 22 microcontroller wires and pins to connect for this keyboard. It has 5 rows and 17 column.
After the columns and rows are joined then it's time to connect the key switches. To do this, place a diode over each pin of the key switch and solder it. This will shield the pins from current, and prevent them from being shorted. A diode can only allow current to flow in one direction, and it also has a an indicator of black color that indicates which way the current will flow.
Some of the tools offered at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 -- can help customers in the shop, or even DIY customers in certain cases program replacement keys and restore lost immobilizer information, Sanabria says. The tools plug into OBD ports and guide the user through each step making the process simpler than replacing the car's computer.
Jumpstarting the battery
A lot of people keep a set of jumper cables in their trunks to use in an emergency, but jumping a battery on modern automobiles might not be the best choice. These vehicles are equipped with many digital and computer systems that communicate with each other. A voltage spike when a battery is connected to another battery could damage the components making your car unusable.
Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal of 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 car's hood--the engine block is a good option. Do not connect the black cable to the negative terminal on the dead battery, since this could cause a spark that ignites the gasoline in the engine bay.
Once the cables are connected the vehicle that is disabled and allow it to run for around five minutes before you disconnect the cables in reverse order. Keep in saab 9-3 key replacement TheKeyLab that the battery on the Saab 9-3 will be charged when you drive, so it could take a while for the battery to come back to its original level. You should invest in another key fob as soon as you can. Replacing the only one that works requires the installation and programming of a new computer chip.
Replacement Case
Many Saab owners only have one key for their vehicle and if they lose that it's going to cost them. The reason is that it's expensive to purchase a new key, and this involves 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 an extra key. But don't buy a used key, even if it's "new." Claimed-new keys from sellers selling aftermarket keys won't perform and are almost certain to fail at the critical moment.
The dealer will charge you the highest dollar if you only have one working key. We can reset and reprogram the computer's EEEPROM to get it ready to accept a replacement 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.