Saab Key Programming
Saab cars built since 1994 use an immobilizer system that relies 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 with a specialized Tech2 diagnostic tool.
The problem is that this can be quite costly. Always keep an extra set of keys on hand.
Transponder key
The transponder can be described as a key with an electronic chip. This chip sends a signal when the key is placed into the ignition. The car checks to see whether the signal matches with the one on the key. If the signals are the same the car will then unlock itself and start. This is a great way to stop car theft and keep your vehicle secure from thieves.
Transponder keys could be an increasingly popular feature for cars, but they're not as safe as traditional keys made of metal. The metal part of the traditional keys can be easily cut and copied, however transponders are protected by an electronic chip that safeguards it. The chip is a unique code which is programmed into the 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. The car can only recognize the key fob if it is equipped with an unmodified chip and has been programmed to match. The car will not start in the event that the key has not been programmed to match.
It's important to make sure that you have an extra key for your Saab. This is particularly true when you live in a rural region that has numerous car thieves. You can obtain a replacement key for your Saab by going to the dealership without paying pricey costs. You can get an original key made on the spot for less than half of the cost you would spend at an auto dealer.
Key for Wired
Saab cars are typically delivered with two keys. If you only have one, it's an ideal idea to purchase an additional key fob as soon as possible since if you lose it, the car will require the replacement of a CIM unit, and the locking cylinders will have to be replaced. This can be costly particularly for used cars.
The next step is to connect the column and row wires to the microcontroller. This is the most tedious part of the project and it will require a lot of soldering. There's no standard way to go about it, however, you should think about how to connect and solder each column and row. For this keyboard, there are five rows and 17 columns. So there will be 22 microcontroller wires and pins to connect.
After the rows and column are joined then it's time to connect the key switches. To do this you must place an inverter over each pin of the key switch and then solder it. This will shield the pins from current, preventing them from getting shorted. A diode can only allow the flow of current to be in one direction, and it comes with a an indicator of black color that indicates which way the current will flow.
Sanabria says that some of the tools offered in auto parts stores, like the Autel MaxiIM IM608PRO or IM508 are able to assist customers shopping or DIY users to program replacement keys and restore the immobilizer's data. The tools connect to OBD ports and guide the user through each step and make the process more straightforward than replacing the car's computer.
Jump starting the battery
A lot of people keep a set of jumper cables in their trunk to use in an emergency, but jumping a battery on modern cars might not be the best option. These cars are equipped with a variety of digital and computer systems that communicate with each other. A voltage surge while the battery is connected to another battery could fry the components and render your vehicle unable to drive.
Start the vehicle you are using and allow it to run for approximately two minutes before you connect the cables to the one that is disabled. 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 clear, unpainted metal surface underneath the hood of your disabled vehicle. The engine block is a good option. Don't connect the black cable to the negative terminal of the dead battery, since this could cause an ignition spark that ignites the gasoline in the engine bay.
Once the cables are connected the vehicle that has been disabled and let it run for approximately five minutes before disconnecting the cables in reverse order. The battery in the Saab 9-3 will charge as you drive. It may take a while it to fall back. You should purchase a second key fob, when you can. The replacement of the 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 it is lost, they'll be charged. saab 9-3 key fob programming is that it's costly to purchase a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. In the event of theft or any other disaster, it is best to have an extra key. Even if the key is "new" it will not work.
Most locksmiths can't help you if you have only one working key, and the dealer will charge for the cost of replacing the computer in your vehicle to make a new replacement. We can reset and reprogram the computer's EEEPROM in order for it to accept a new key without the need to replace the entire system. This can help you save a significant amount of money. It's more affordable instead of waiting until you lose the sole key.