Saab Key Programming

Saab cars manufactured since 1994 feature an immobilizer mechanism based on coded keys. Adding an extra key requires a new transponder and special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.

This can be expensive. This is why it is important to always have a spare key at hand.

Transponder key

The transponder key comes with an electronic chip that sends a signal to the car when it is inserted into ignition. The car then checks the signal to determine whether it is the same as that of the key. If the signals are in sync it will open and start. This is an excellent way to guard your car against theft.

Transponder keys are an extremely popular accessory for automobiles, but they are not as secure as traditional keys made of metal. While the metal portion of a conventional key can be cut and copied however, a transponder is secured by an electronic chip. The chip has an individual code that is embedded into the car's computer to identify it.

When a saab fob key replacement key fob is used, the car recognizes it and allows it to turn on. However, it is only able to do this if the fob has an unmodified chip that has been programmed to match the original. The car will not start if the key is not programmed to match.

It is important to have an extra Saab key. This is especially important when you live in a rural location that has numerous car thieves. You can purchase a new key for your Saab by visiting the dealership, without having to pay their high cost. You can have the replacement key on the spot for less than half of the price you'd pay at dealerships.

Key for Wired

Saab cars typically come with two keys when they are new. If you have only one, it is best to acquire an extra key fob as soon as is possible as 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 expensive especially for used vehicles.

The next step is to connect the wires for columns and row to your microcontroller. This is the most difficult part of the project and will require a good amount of soldering. There isn't a standard way to accomplish this, however it is crucial to plan how to program saab 9-3 key fob you will route and solder the rows and columns. There are 22 microcontroller wires as well as pins to connect to this keyboard. It includes 5 rows and 17 columns.

After the rows and column are soldered together It is now time to connect the key switches. To do this, you need to place a diode on each pin on the key switch and solder it. This will protect the pins of the key switch from current and stop them from being shorted. The diode will only allow the current to flow in a single direction, and has a the black band as a visual indicator that indicates which way the current will flow.

Sanabria says that some of the tools offered in auto parts stores, fob like the Autel MaxiIM IMM608PRO and IM508 can assist customers who are shopping or DIY customers to program replacement keys and restore immobilizer data. The tools plug into OBD ports and guide the customer through each step making the process simpler than replacing the car's computer.

Jumpstarting the battery

Most people keep the set in their trunks to start a vehicle in the event of an emergency, however it might not be the best idea for newer cars. They have numerous computers and digital devices that communicate with one another. A voltage surge while a battery is hooked up to another one could damage these components, rendering your car undriveable.

Connect the cables to the vehicle working. Let it run for two minutes. Attach the red clip to the positive terminal on the battery that is good (it will have "POS" or "+" on it). Attach the other end to a clean unpainted metal surface underneath the hood of the affected car. The engine block is a good choice. Do not connect the black cable to the negative terminal of the dead battery, since it could spark an ignition that ignites the gasoline in the engine bay.

After the cables have been connected, you need to start the car and let it run for about five minutes. Then disconnect them in reverse. Remember that the battery on your Saab 9-3 is charged while you drive, so it will take a while for the battery to go down. It's a good idea to buy a spare key fob as soon as you can, because replacing the sole working one requires the installation of a brand new computer module and special programming to convince the system 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 that is lost, they will be charged. The reason is that it's not inexpensive to add a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, and programming. In the event of theft, or other catastrophe it is advisable to have a spare key. Don't purchase a used key, even the case that it's "new." Keys that are claimed-new purchased from third-party sellers won't perform and are almost certain to fail in the crucial moment.

The dealer will charge the highest dollar if you have only one working key. We can, however, reset and re-program the computer's EEPROM to accept a new key without replacing the whole system. That can help you save money. It's also a lot cheaper than waiting until you lose your sole key.