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Saab 9-3 key fob programming (botdb.win) Key Programming

saab 900 key cars built since about 1994 have an immobilizer feature built on coded keys. Adding an extra key requires the purchase of a new transponder as well as special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.

The problem is that it can be quite costly. This is why you should always have a spare key at hand.

Transponder key

The transponder key comes equipped with an electronic chip. It transmits a signal to the car when it is inserted into the ignition. The car then checks the signal to see whether it is identical to that of the key. If both signals match, the car will unlock itself and begin. This is a great method to guard your car against theft.

Transponder keys could be 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 or copied, while transponders are protected by an electronic chip which protects it. The chip is equipped with an unique code that is encoded into the car's system to identify it.

When a Saab key fob is used, the car recognizes it and allows it to turn on. However, it will only do this if your key fob is unmodified and has a chip that has been programmed to match the original. The car will not start when the key isn't programmed to match.

It is crucial to have an extra Saab key. This is particularly important if you reside in a rural area with many car thieves. The good news is that it's possible to find a new key for your Saab without having to go to a dealer and pay the expensive prices that they demand. In the majority of instances, you can get a brand new key made right on the spot for less than half the cost of what you would pay at a dealer.

Wired key

Saab cars are usually delivered with two keys. If you have only 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 an entirely new CIM unit and the locking cylinders will have to be replaced. This can be costly especially for used vehicles.

The next step is to connect the wires for the column and row to the microcontroller. This is the toughest part of the project, and it will require a lot of soldering. It's not a common way to do it, however, you should determine how to connect and solder each column and row. There are 22 microcontroller wires as well as pins to connect to this keyboard. It includes 5 rows and 17 column.

Once the rows and columns are soldered, it's the time to connect them to the key switches. To do this you must place a diode across each pin on the key switch and solder it. This will shield the pins from current and prevent them from being shorted. A diode allows the flow of current to be in one direction, and it comes with a a black band visual indicator that indicates the direction in which current will flow.

A few of the tools that are available at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- can help shop customers or even DIY customers in certain instances programme replacement keys and recover lost immobilizer data, Sanabria says. The tools plug into OBD ports and guide the customer through each step and make the process more straightforward than replacing the vehicle's computer.

Jumpstarting the battery

Most people keep a set of jumper cables in their trunk for emergencies, but jumping a battery in newer cars might not be the best idea. These cars are equipped with a variety of computers and digital devices which communicate with one another. A surge in voltage while the battery is connected to another could cause damage to these components and leave your vehicle unable to drive.

Start the working vehicle and allow it to run for approximately two minutes before you connect the cables to the non-working one. Attach the red clip on the positive terminal of the battery that's good. (It will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled car's hood. The engine block is a good option. The black cable is not to be connected to the negative terminal of the dead battery. This could create sparks, which would ignite the gasoline that is in the engine compartment.

Once the cables are connected, you can start the disabled vehicle and let it run for approximately five minutes before you disconnect the cables in reverse order. The battery in the Saab 9-3 will charge while you drive. It may take a while it to fall back. It is a good idea to purchase a spare fob as soon as you can, because replacing the only working one requires the installation of a new computer module and a special program to convince the system that your lost keys aren't trying to steal the car.

replacement saab key Case

Many saab car key owners only have one key for their car and if they lose that the cost will be. 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 catastrophe, it is best to have an extra key. Don't buy a secondhand key, even the case that it's "new." Keys that are claimed to be new from sellers selling aftermarket keys won't perform and are almost certain to fail at the critical moment.

Most locksmiths aren't able to help with a single working key, and the dealer will charge high prices to replace the computer in your car to make a new replacement. We can, however, reset and re-program the computer's EEPROM to prepare it to accept an alternative key without replacing the whole system. This could help you save a significant amount of money. It's also cheaper than waiting until you lose your one key.