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Saab Key Programming

saab 93 key replacement cars built since 1994 utilize an immobilizer system that is based on a set of keys. Adding an extra key requires a new transponder and special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool.

This can be expensive. You should always keep an extra set of keys at hand.

Transponder key

The transponder is a key with an electronic chip. The chip transmits a signal when the key is placed into the ignition. The car will check to see whether the signal matches with the one on the key. If the signals are the same the car will then unlock itself and begin. This is an excellent way to guard your car against theft.

Transponder keys could be a popular addition to cars, but they're not as safe as traditional metal keys. While the metal portion of a traditional key can be cut and copied but a transponder key is protected by an electronic chip. The chip is a unique code that is programmed into a car's computers in order to identify it.

The car will recognize the saab 9 3 key replacement keyfob and permit it to be turned on. However, it can only do this if your key fob has an unmodified chip that has been programmed to match. The car will not start in the event that the key is not programmed to match.

It's crucial to ensure that you have an extra key for your Saab. This is especially important especially if you reside in a rural area where there are numerous car thieves. You can get a brand new key for your saab 9-3 replacement key by going to the dealership and not paying their expensive prices. In the majority of instances, you can get a new key created on-the-spot at a fraction of the cost you'd pay at the dealer.

Wired key

Saab cars usually come with two keys upon purchase. 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 particularly if you are buying a second-hand car.

The next step is to connect the row and columns wires to your microcontroller. This is the most difficult part of the project, and will require a lot of soldering. It's not a common way to go about it, but you should plan How to program saab 9-3 key fob to route 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.

After the columns and rows are soldered, it's time to connect them to key switches. To do this, place a diode across each key switch pin and solder it. This will protect the pins that are used for key switches from current and keep them from being shorted. A diode only allows the current to flow in a single direction, and it also has a an indicator in black that indicates the direction current will flow.

Some of the tools you can find at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- may assist customers at the shop or DIY customers in certain cases create replacement keys and restore the lost immobilizer's data, Sanabria says. The tools plug into the OBD port and guide the user through the procedure, making it much easier than replacing the computer inside the vehicle.

Jump starting the battery

Most people keep a set of jumper cables in their trunks to use in an emergency however, jumping a battery for newer cars might not be the best idea. These vehicles are equipped with numerous digital and computer systems that communicate with each other. A surge in voltage while the battery is connected to another one could damage the components and render your car undriveable.

Start the vehicle you are using and allow it to run for around two minutes before you connect the cables to the disabled one. Attach the red clip to the positive terminal of 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 under the disabled vehicle's hood. An engine block is an excellent choice. Do not connect the black cable to the negative terminal of the dead battery, as this could trigger a spark that ignites the gasoline in the engine bay.

After the cables have been connected, start the car and let it run for approximately five minutes. Then disconnect the cables in reverse. Be aware that the battery of your Saab 9-3 is recharged while you drive, so it can take a while to get the battery down. You should invest in a second key fob, as soon as possible. The replacement of the one that works requires the installation and programming of a brand new computer chip.

Replacement Case

Saab owners usually only have one car key, and if it is lost, they'll be charged. The reason is that it's expensive to buy a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. In the event of theft or other catastrophe it is recommended to have a spare key. Even if the key is "new" it won't work.

The dealer will charge you the most expensive dollars if you only have one working key. However, we can reset and reprogram the computer's EEPROM to accept the new key without having to replace the entire system. This could save you a lot of money. It's more affordable instead of waiting until you loose the only key.