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Saab Key Programming

Saab Ignition Key Replacement cars produced since 1994 utilize an immobilizer system that is based on key codes. Adding an extra key requires the purchase of a new transponder as well as special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool.

It can be costly. It is recommended to always have a spare set of keys on hand.

Transponder key

The transponder is a type of key that is equipped with an electronic chip. This chip sends a signal when the key is put into the ignition. The car then checks the signal to see whether it matches the one in the key. If the signals are the same the car will then unlock itself and start. This is a great way to safeguard your car from theft.

Transponder keys are an extremely popular accessory for cars, but they're not as safe as traditional keys made of metal. While the metal component of a traditional key can be cut and copied but a transponder key 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.

When a saab key replacement cost key fob is used, the car recognizes it and allows it to turn on. The car can only recognize the key fob if it is equipped with a chip that is unmodified and has been programmed to match. Otherwise, the car would reject the key and refuse to start.

It's important to make sure that you have a spare key for your Saab. This is particularly important when you live in a rural area where there are a lot of car thieves. You can get a new key for your saab car keys by visiting the dealership and not paying their expensive prices. You can have the replacement key on the spot for less than half the price you'd pay at the dealership.

Wired key

Saab cars usually come with two keys when they're new. If you have only one, it is recommended to purchase an additional key fob as soon as you can since 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 expensive especially for cars that are used.

The next step is to connect the wires of columns and row to your microcontroller. This is the most difficult part of the project and will require a great deal of soldering. There isn't a standard method to do it, however, you should think about how to route and solder each column and row. There are 22 microcontroller pins and wires to connect to this keyboard. It has 5 rows and 17 columns.

After the rows and column are joined after which it is time to connect the key switches. Solder a diode on each key switch pin. This will shield the pins on the key switch from current and stop them from being shorted. A diode allows current to only flow in one direction. It is equipped with a visible indicator of a black line that indicates which direction current will flow.

Some of the tools you can find at auto parts stores -- such as the Autel MaxiIM IM608 Pro and IM508 -- may help shop customers or even DIY customers in some cases program replacement keys and restore the lost immobilizer's data, Sanabria says. The tools connect to OBD ports and guide the user through each step which makes the process much easier than replacing the car's computer.

Jump-starting the battery

The majority of people have a set of jumper cables in their trunks for emergencies however, jumping a battery on modern vehicles might not be the most efficient option. These vehicles have many computers and digital devices that communicate with one another. A surge of voltage when batteries are connected to another one could cause damage to the parts, rendering your car undriveable.

Start the vehicle that is working and let it run for about two minutes before connecting the cables to the battery that is not working. Attach the red clip to the positive terminal of the battery that's good. (It will say "POS" or "+".) Attach the other end of the black cable to a clean, unpainted metal surface underneath the disabled vehicle's hood. An engine block is a good choice. The black cable should not be connected to the negative terminal of the dead battery. This could create sparks, which would ignite gasoline in the engine compartment.

After the cables have been connected, you can start the car and allow it to run for around five minutes. Then disconnect them in reverse. Keep in mind that the battery on the Saab 9-3 gets recharged when you drive, and it can take a while to get the battery back to its original level. It's a good idea invest in a spare key fob as soon as you can, since replacing the one that works requires the installation of a brand new computer module and a special program to convince it that your missing keys aren't in the process of trying to steal the car.

Replacement Case

Saab owners usually have only one car key, and if that is lost, they'll be charged. The reason is that it's costly to purchase a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. In the event of theft or any other calamity it is recommended to have a spare key. Don't buy a secondhand key even the case that it's "new." Keys that are claimed-new from sellers selling aftermarket keys won't perform and are almost certain to fail at the crucial moment.

The dealer will charge the highest dollars if you only have one working key. We can, however, reset and reprogram the computer's EEPROM to accept a new key without replacing the whole system. That can save you a significant amount of money. It's also less expensive than waiting until you lose your one key.