Saab Key Programming

Saab cars that were built prior to 1994 feature an immobilizer mechanism built on coded keys. Adding an extra key requires an entirely new transponder and programming. This is usually handled by the dealer using the Tech2 diagnostic tool.

The problem is that this could be very costly. This is why you should always keep a spare key in your possession.

Transponder key

The transponder is a type of key equipped with an electronic chip. This chip sends out a signal when the key is placed in the ignition. The car then examines the signal to see whether it is identical to the one on the key. If the signals are the same the car will be able to unlock itself and start. This is a fantastic way to protect your vehicle from theft.

Transponder keys are an increasingly popular feature for cars, but they're not as safe as traditional metal keys. The metal component of a traditional key is easily cut and copied, whereas a transponder has an electronic chip that protects it. This chip contains a unique code that is embedded into the car's computer to identify it.

When a Saab key fob is used the car recognizes it and allows it to turn on. The car will only recognize the key fob when it has an unmodified chip and has been programmed to match. The car won't start when the key isn't programmed to match.

It's essential to ensure that you have an extra key for your Saab. This is especially true for those who live in a rural location where there are numerous car thieves. The good news is that you can get a replacement key for your Saab without needing to visit an auto dealer and pay the expensive prices that they demand. You can have an original key made on the spot at a fraction of the cost you would spend at dealerships.

Wired key

Saab cars are usually delivered with two keys. If you only have one, you should purchase an extra key as soon as you can. This is because if it's lost, the car will need an entirely new CIM and the locking cylinders replaced. This can be costly, especially if you are purchasing a used car.

The next step is connecting the wires for columns and row to your microcontroller. This is the most challenging part of the project and will require a great deal of soldering. There's no standard way to do this, but it is crucial to plan the routes you'll use to solder the columns and rows. There are 22 microcontroller wires and pins that you can connect to this keyboard. It has 5 rows and 17 columns.

Once the rows and columns are soldered, it's the time to connect them to key switches. Solder a diode to each key switch pin. This will protect the key switch pins from current and stop them from being shorted. A diode permits current to only flow in one direction. It is equipped with a visible indicator, a black band, that shows the direction in which the current will flow.

Sanabria says that some of the tools available in auto parts stores, such as the Autel MaxiIM IM608PRO and the IM508 can assist customers shopping or DIY customers to program replacement keys and restore immobilizer information. The tools connect to the OBD port and guide the user through the process, making it easier than replacing the computer inside the vehicle.

Jumpstarting the battery

Most people keep a few sets of jumper cables in their trunks for emergencies, but jumping a battery on modern cars might not be the best choice. These vehicles are equipped with many digital and computer systems that communicate with each other. A voltage surge while a battery is hooked up to another battery could fry these components, rendering your car undriveable.

Start the vehicle you are using and let it run for about two minutes before you connect the cables to the one that is disabled. Attach the red clip to the positive terminal of the good battery. (It will read "POS" or "+".) Attach the other end how to program saab 9-3 key fob a clean, unpainted metal surface beneath the hood of the affected vehicle. The engine block is a good option. Do not connect the black cable to the negative terminal of the dead battery, as it could ignite a spark that ignites the gasoline in the engine bay.

Once the cables are connected the disabled vehicle and let it run for about five minutes before you disconnect the cables in reverse order. Remember that the battery on your Saab 9-3 is charged when you drive, and it could take a while for the battery to come back to normal. It's a good idea invest in 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 lost keys aren't in the process of trying to steal the car.

Replacement case

Saab owners often only have one car key, and if it is lost, they will be charged. It's costly to add an additional key and it requires replacing the CIM or TWICE for older models. It is best to have a spare key in the event of theft or any other catastrophe, and the best way is to purchase an extra key as soon as you can. Even it's "new", it will not function.

The majority of locksmiths won't be able to help with a single working key, and the dealer will charge high prices to replace the computer in your car for a replacement. However, we can reset and re-program the computer's EEPROM to accept the new key, without replacing the entire system. This can save you a great deal of money. It's more affordable than waiting until you lose your only key.