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Saab Key Programming

Saab cars made since 1994 feature an immobilizer mechanism that is based on codes for keys. Adding an extra key requires a new transponder, as well as special programming. This is usually done at the dealer, using a specially-designed Tech2 diagnostic tool.

The problem is that it can be extremely expensive. You should always keep an extra set of keys in your possession.

Transponder key

The transponder can be described as a key that has an electronic chip. This chip sends a signal when the key is placed into the ignition. The car will then check the signal to determine whether it matches that of the key. If the signals are the same it will open itself and start. This is a great method to deter car theft and keep your car secure from thieves.

Transponder keys are a popular feature in cars, but you should be aware that they are not as secure as traditional keys made of metal. While the metal portion of a traditional key may be cut and copied the transponder is protected by an electronic chip. The chip contains a unique code which is programmed into the car's computer in order to identify it.

The car will recognize the lost saab key keyfob and permit it to be turned on. The car can only recognize the key fob if it is equipped with an unmodified chip and programmed to match. If not, the car will reject the key and not start.

It's important to make sure that you have a spare key for your saab keys replacement. This is particularly important especially if you reside in a rural area, where there are many car thieves. The good thing is that you can obtain a Replacement saab 9-3 key key for your saab replacement keys without having to go to a dealership and pay the hefty prices that they demand. In most cases, you can have a brand new key made right on the spot at a fraction of the cost you'd pay at a dealer.

Wired key

Saab cars typically come with two keys when they are new. If you only have one, it is an ideal idea to purchase an additional key fob as soon as is possible, because if you lose it the car will require an entirely new CIM unit, and the locking cylinders will have to be replaced. This can be expensive especially for cars that are used.

The next step is to connect the wires for columns and row to your microcontroller. This is the most challenging part of the project and will require a large amount of soldering. There isn't a standard way to do this, but it is crucial to plan the routes you'll use to solder the columns and rows. For this keyboard, there are 5 rows and 17 columns. So there will be 22 microcontroller pins and wires to connect.

After the rows and column are soldered together after which it is time to connect the key switches. To do this, you need to place a diode over each pin of the key switch and solder it. This will protect the pins that are used for key switches from current and keep them from being shorted. The diode will only allow the flow of current to be in one direction, and it comes with a the black band as a visual indicator that shows the direction in which current will flow.

Sanabria says that some of the tools available in auto parts stores, like the Autel MaxiIM IM608PRO and IM508, can help customers who are shopping or DIY users to program replacement keys and restore data from the immobilizer. 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.

Jumpstarting the battery

The majority of people have a set of jumper cables in their trunks for emergency situations however, jumping a battery in newer vehicles might not be the best idea. These vehicles are equipped with digital and computers that communicate with each other. A surge in voltage when a battery is hooked up to another one could damage these components, rendering your car undriveable.

Start the vehicle that is working and allow it to run for approximately two minutes before you connect the cables to the disabled one. Attach the red clip to the positive terminal on the good battery (it will have "POS" or "+" on it). Attach the other end of the black cable to a clean, unpainted metal surface underneath the car's hood. The engine block is a good choice. Don't connect the black cable to the negative terminal on the dead battery, since this could cause an ignition source that ignites gasoline in the engine bay.

Once the cables are connected, begin the car and let it run for about five minutes. Then disconnect the cables in reverse. Be aware that the battery in your Saab 9-3 is charged during your drive, which means it may take some time for the battery to go back to its original level. It is recommended to purchase an additional key fob as soon as possible. Replacing the one that works requires the installation and programming of a brand new computer chip.

replacement saab key Case

Many Saab owners have only one key for their vehicle and if they lose that they'll be charged. The reason is that it's not cheap to purchase a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. It is recommended to have a spare key in the event of theft or any other catastrophe and the best option is to purchase an additional key as soon as you are able to. Don't buy a secondhand key even the case that it's "new." Keys that are claimed to be new from a second-hand store will not be effective and are almost guaranteed to fail in the most critical moment.

The dealer will charge you top dollar if you have only one working key. However, we can reset and re-program the computer's EEPROM to prepare it to accept a new key without replacing the whole system. This could save you a lot of money. It's also less expensive than waiting until you lose your only key.