Saab Ignition Key Replacement Key Programming

Saab cars manufactured since 1994 utilize an immobilizer system that is based on coded keys. A new transponder is required for addition of an extra key, and special programming. This is usually handled by the dealer using a Tech2 diagnostic tool.

This can be expensive. This is why you should always have a spare key on hand.

Transponder key

The transponder key comes equipped with an electronic chip. It transmits a signal to the car when it is inserted into ignition. The car checks to see if the signal matches the one on the key. If the signals are in sync the car will then unlock and start. This is a great method to stop auto theft and keep your vehicle secure from thieves.

Transponder keys are an increasingly popular feature in vehicles, but you should be aware they aren't as secure as traditional metal keys. While the metal parts of a traditional key can be cut and copied the transponder is protected by an electronic chip. The chip is equipped with an individual code that is embedded into the car's computer to identify it.

The car will recognize the saab replacement keys keyfob and allow it to turn on. However, it is only able to do this if the key fob has a non-modified chip that has been programmed to match. Otherwise, the car would reject the key and won't start.

It's crucial to ensure that you have a spare key for your Saab. This is especially important if you live in a rural area where there are a lot of car thieves. You can get a new key for your Saab by going to the dealership and not paying their pricey cost. You can get an original key made on the spot at a fraction of the cost you would spend at dealerships.

Wired key

Saab cars usually come with two keys when they are new. If you only have one, it is an ideal idea to purchase an extra key fob as quickly as you can, 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 for used vehicles.

The next step is connecting the wires of columns and row to your microcontroller. This is the most difficult part of the project and will require a large amount of soldering. It's not a standard way to do it, but you should determine 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 pins and wires to connect.

Once the rows and columns are soldered, it's time to connect them to key switches. Solder a diode on each key switch pin. This will protect the pins from current and prevent them from getting shorted. The diode will only allow current to flow in one direction, and it comes with a an indicator in black that shows the direction in which current will flow.

Sanabria states that some of the tools sold in auto parts stores, like the Autel MaxiIM IMM608PRO and IM508, can help customers who are shopping or DIY users to program replacement keys and restore immobilizer information. The tools connect to OBD ports and guide the user through each step, making the process easier than replacing the car's computer.

Jump-starting the battery

A lot of people keep a set of jumper cables in their trunks to use in an emergency, but jumping a battery in newer vehicles may not be the best option. They have numerous computers and digital devices that communicate with one another. A surge in voltage while the battery is connected to another battery could fry these components and render your vehicle unable to drive.

Connect the cables to the vehicle that is 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 of the black cable to a clean, unpainted metal surface underneath the disabled car's hood--the engine block is a good option. Do not connect the black cable to the negative terminal of the dead battery because this could trigger a spark that ignites the gasoline in the engine bay.

After the cables have been connected, start the vehicle and let it run for about five minutes. Then disconnect the cables in reverse. The battery in your saab 9 3 key replacement 9-3 is recharged as you drive. It takes a while for it to drop back down. It's a good idea to purchase a spare key fob as soon as you can, because replacing the only functioning one requires the installation of a brand new computer module and a special program to convince it that your lost saab key keys aren't trying to steal the car.

Replacement Case

Many Saab owners have only one key for their car and if they lose it, the cost will be. The reason is that it's expensive to replace a key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, and programming. It is best to have a spare key in case of theft or any other catastrophe the best solution is to buy an extra key as early as you can. However, don't purchase a secondhand key, even it's "new." Keys that are claimed to be new from sellers selling aftermarket keys won't be effective and are almost guaranteed to fail at the critical moment.

The majority of locksmiths won't be able to help with a single working key and the dealer will charge high fees to replace the computer in your vehicle for a replacement. We can, however, reset and re-program your computer's EEPROM to prepare it to accept the new key, without replacing the whole system. That can help you save money. It's less expensive rather than wait until you loose the only key.