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Saab Key Programming

saab car key replacement cars produced since 1994 feature an immobilizer system that is based on key codes. To add an additional key, you need an entirely new transponder and programming. This is usually handled by the dealer using the Tech2 diagnostic tool.

The issue is that this can be quite costly. You should always keep a spare set of keys available.

Transponder key

The transponder is a type of key that has an electronic chip. The chip sends a signal when the key is inserted into the ignition. The car checks to see whether the signal matches with the one on the key. If both signals match the car will then unlock itself and start. This is a great way to avoid car theft and keep your car secure from thieves.

Transponder keys may be an increasingly popular feature for automobiles, but they are not as secure as traditional keys made of metal. While the metal component of a conventional key can be cut and copied the transponder is protected by an electronic chip. The chip has a unique code that is programmed into the car's computers to identify it.

The car will recognize the saab ignition key keyfob, and allow it to turn on. However, it is only able to do this if your key fob has a non-modified chip that has been programmed to match. The car won't start in the event that the key is not programmed to match.

It is important to have an extra saab fob key replacement key. This is especially important when you live in a rural area that is home to many car thieves. The good news is that you can obtain a replacement key for your Saab without having to go to a dealership and pay the high costs that they charge. You can have the replacement key on the spot for less than half of the price you'd spend at the dealership.

Key for Wired

saab key replacement cars are typically delivered with two keys. If you only have one, it is recommended to purchase an extra key fob as soon as possible, because if you lose it, the car will require the replacement of a CIM unit, and the locking cylinders will need to be 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 difficult part of the project and it will require a lot of soldering. There's no standard way to do it, but you must think about How to program saab 9-3 Key fob to route and solder each column and row. For this keyboard, there are five rows and 17 columns. So there will be 22 microcontroller pins and wires to connect.

After the columns and rows are soldered, it's the time to connect them to key switches. To do this, you need to place an inverter over each key switch pin and solder it. This will shield the pins that are used for key switches from current and keep them from being shorted. The diode allows current to only flow in one direction. It is equipped with a visible indicator that is black, that shows which way current will flow.

Sanabria states that a number of the tools available in auto parts stores, such as the Autel MaxiIM IM608PRO and IM508 will assist shoppers or DIY customers to program replacement keys and restore immobilizer information. The tools plug into the OBD port and automatically guide the user through the process, making it easier than replacing the computer inside the vehicle.

Jump starting the battery

Most people keep a few sets of jumper cables in their trunks for emergencies, but jumping a battery on modern vehicles may not be the best choice. These cars have a variety of electronic devices and computers that communicate with each other. A voltage surge when a battery is connected to another can fry the components making your car unusable.

Connect the cables to the vehicle working. Allow it to run for two minutes. Attach the red clip to the positive terminal of the battery that is good (it will have "POS" or "+" on it). Attach the other end to a clean unpainted metal surface under the hood of the affected vehicle. The engine block is a great alternative. The black cable is not to be connected to the negative terminal of the dead battery. This could create sparks that could ignite the gasoline inside the engine compartment.

Once the cables are connected, start the disabled vehicle and let it run for approximately five minutes before disconnecting them in reverse order. The battery in your Saab 9-3 will be recharged while you drive. It will take some time for it to return to its original state. It's a good idea to invest in a spare key fob as soon as you can, because replacing the only working one requires the installation of a brand new computer module and special programming to convince it that your lost keys aren't in the process of trying to steal the car.

Replacement case

Saab owners typically only have one car key, and if that is lost, they'll be charged. It's expensive to add a key and requires replacing the CIM or TWICE for older models. In the event of theft or any other disaster it is advisable to have an extra key. However, don't purchase a secondhand key, even when it's "new." Keys that are claimed as new from aftermarket sellers will not perform and are almost certain to fail in the crucial moment.

The dealer will charge you the highest dollar for only one working key. However, we can reset and reprogram the computer's EEPROM how to program saab 9-3 key fob accept an alternative key without replacing the entire system. This could save you a lot of money. It's less expensive than wait until you lose the only key.