saab key programming (http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=2032102)

saab replacement key cars produced from 1994 have an immobilizer system that relies on keys that are coded. To add an additional key, you need an entirely new transponder and programming. This is usually done by the dealer using a Tech2 diagnostic tool.

The problem is that this could be quite costly. This is why it is important to always have a spare key available.

Transponder key

The transponder key is a key with an electronic chip that sends a signal back to the car when it is inserted into the ignition. The car will check how to get a saab replacement key see whether the signal is the same as the one on the key. If the signals match the car will then unlock and start. This is a great method to guard your car against theft.

Transponder keys can be an increasingly popular feature for cars, but they are not as secure as traditional metal keys. The metal part of the traditional key can easily be copied and cut, but a transponder has an electronic chip that protects it. The chip contains a unique code which is programmed into a car's computers in order to identify it.

The car will recognize the Saab keyfob, and allow it to turn on. The car can only recognize the key fob if it is equipped with an unmodified chip and programmed to match. Otherwise, the car will reject the key and won't start.

It is vital to have an extra Saab key. This is particularly important when you live in a rural area with many car thieves. You can purchase a new key for your Saab by visiting the dealership without paying their expensive costs. You can get a replacement key created on the spot at a fraction of what you would pay at dealerships.

Key for Wired

saab 9-3 replacement key cars are usually provided with two keys. If you have only one, you should get an extra key as soon as you can. This is because, if it's lost and the car is damaged, it will require a new CIM and the locking cylinders replaced. This can be costly, especially if you are purchasing a used vehicle.

The next step is to connect the wires for columns and row to your microcontroller. This is the most difficult aspect of the project and will require a lot of soldering. There is no standard method to accomplish this, but it is crucial to plan the route you'll take and solder the rows and columns. For this keyboard, there are five rows and 17 columns. So there will be 22 microcontroller wires and pins to connect.

After the columns and rows are soldered, it's time to connect them to key switches. To do this, place a diode over each key switch pin and solder it. This will shield the key switch pins from current and keep them from being shorted. A diode can only allow the flow of current to be in one direction, and it comes with a the black band as a visual indicator that indicates the direction current will flow.

Sanabria states that a number of the tools that are sold in auto parts stores, like the Autel MaxiIM IM608PRO and the IM508 can assist customers shopping or DIY customers to program replacement keys and restore immobilizer information. The tools plug into OBD ports and guide the user through each step making the process simpler than replacing the vehicle's computer.

Jump-starting the battery

The majority of people have the set in their trunks to jump-start a vehicle in an emergency, but it might not be the best option for vehicles with newer technology. These vehicles are equipped with computers and digital devices which communicate with one another. A surge in voltage while a battery is hooked up to another can fry the components and render your car undriveable.

Start the vehicle you are using and allow it to run for approximately two minutes before you connect the cables to the non-working one. Attach the red clip to the positive terminal of 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 would be a good choice. The black cable is not to be connected to the negative terminal of the dead battery. This could trigger sparks, which could ignite gasoline in the engine compartment.

After the cables have been connected, you can start the vehicle and let it run for about five minutes. Then, disconnect the cables in reverse. The battery in your Saab 9-3 will be recharged as you drive. It may take a while it to fall back. It's a good idea buy 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 the lost keys aren't trying to steal the car.

Replacement case

Saab owners usually have only one car key, and if it is lost, they will be charged. The reason for this is that it's not cheap to replace a key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. In the event of theft, or other catastrophe it is recommended to have a spare key. Don't buy a secondhand key, even the case that it's "new." Claimed-new keys from a second-hand store will not work and are almost guaranteed to fail at the crucial moment.

The dealer will charge you the highest dollar for only one working key. However, we can reset and re-program the computer's EEPROM to accept the new key, without replacing the entire system. This could save you lots of money. It's more affordable rather than wait until you lose your only key.