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saab car key Key Programming

saab key cars made since 1994 come with an immobilizer system based on coded keys. A new transponder is required for the addition of a second key, and special programming. This is usually done at the dealer, using a specially-designed Tech2 diagnostic tool.

It can be costly. It is always advisable to keep a spare set of keys at hand.

Transponder key

The transponder is a piece of key equipped with an electronic chip. This chip sends a signal when the key is inserted into the ignition. The car checks to see whether the signal is the same as the one on the key. If the signals are the same the car will then unlock itself and start. This is a great method to protect your car from theft.

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

When a Saab key fob is used the car recognizes it and allows it to turn on. The car can only recognize the key fob when it has a chip that is unmodified and programmed to match. The car won't start in the event that the key is not programmed to match.

It's important to make sure that you have a spare key for your Saab key fob repair. This is especially important especially if you live in a rural area that is home to numerous car thieves. The good news is that it's possible to find a replacement key to your Saab without having to go to a dealership and pay the high costs that they demand. In the majority of cases, you can have an original key made on the spot at a fraction of the price of what you would pay at an auto dealer.

Wired key

Saab cars typically come with two keys when they're new. If you have only one, it's recommended to purchase an additional key fob as soon as you can since if you lose it the car will require a new CIM unit and the locking cylinders will need to be replaced. This can be costly, especially for used cars.

The next step is to wire the wires for the column and row to the microcontroller. This is the most tedious component of the project and it will require a lot of soldering. It's not a standard way to go about it, however, you should plan how to program saab 9-3 key fob to route and connect each column and row. 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 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 then solder it. This will shield the pins from current and prevent them from being cut off. The diode will only allow current to flow in one direction, and has a the black band as a visual indicator that indicates the direction current will flow.

Some of the tools offered at auto parts stores -like the Autel MaxiIM IM608 PRO and IM508 -- could help customers in the shop, or even DIY users in some cases create replacement keys and restore lost immobilizer data Sanabria says. The tools plug into the OBD port and guide the user through the process, making it easier than replacing the computer inside the vehicle.

Jump-starting the battery

The majority of people have a set of jumper cables in their trunk for emergency situations, but jumping a battery on newer cars might not be the best choice. These vehicles are equipped with digital and computer systems that communicate with each other. A voltage spike when the battery is connected another one could cause damage to the parts and render your vehicle unusable.

Start the working vehicle and allow it to run for around two minutes before connecting the cables to the disabled one. Attach the red clip to the positive terminal of the good battery (it will have "POS" or "+" on it). Attach the other end to a clean and unpainted metal surface underneath the hood of your disabled vehicle. The engine block is an excellent alternative. The black cable is not to be connected to the negative terminal of the dead battery. This could trigger sparks that could ignite gasoline in the engine compartment.

Once the cables are connected the vehicle you are not using and let it run for about five minutes before you disconnect them in reverse order. Be aware that the battery of your Saab 9-3 is charged during your drive, which means it may take some time to get the battery back to normal. It is a good idea to buy a spare key fob as soon as you can, since replacing the only functioning one requires the installation of a brand new computer module and a special program to convince it that your lost keys aren't attempting to steal the car.

Replacement Case

Saab owners usually have only one car key, and if it is lost, they will be charged. It's expensive to buy keys and will require replacing the CIM or TWICE for older models. It is best to have a second key in the event of theft or any other catastrophe and the most effective way is to buy an extra key as quickly as you can. Even when the key is "new" it will not function.

The majority of locksmiths won't be able to help when you only have one working key, and the dealer will charge top dollar to replace the computer in your vehicle to make a replacement. However, we can reset and re-program your computer's EEPROM in order to prepare it to accept a new key without replacing the entire system. This could save you lots of money. It's cheaper to do this than wait until you loose the only key.