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saab 9-3 key programming Key Programming

Saab cars built since about 1994 come with an immobilizer system made up of coded keys. A new transponder is required for addition of a second key, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.

The problem is that this can be quite costly. You should always keep a spare set of keys on hand.

Transponder key

The transponder can be described as a key equipped with an electronic chip. This chip sends out a signal when the key is inserted in the ignition. The car then examines the signal to determine whether it matches that of the key. If both signals match the car will be able to unlock itself and begin. This is an excellent way to protect your vehicle from theft.

Transponder keys are a common feature in automobiles, however you must be aware that they are not as secure as classic keys made of metal. The metal component of the traditional key can be easily cut or copied, while transponders have an electronic chip that safeguards it. The chip contains a unique code which is programmed into the car's computer in order to identify it.

The car will recognize the Saab keyfob and allow it to be turned on. The car will only recognize the key fob if it is equipped with an unmodified chip and 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 fob key replacement. This is particularly important especially if you reside in a rural location where there are numerous car thieves. The good thing is that you can find a new key for your saab 9-3 key replacement without having to go to a dealership and pay the hefty prices that they demand. In the majority of instances, you can get a brand new key made right on the spot at a fraction of the price of what you'd pay at dealerships.

Key for Wired

Saab cars usually come with two keys when new. If you only have one, it is recommended to purchase an additional key fob as soon as possible in case you lose it the car will require a new CIM unit, and the locking cylinders will have to be replaced. This can be costly particularly if you are purchasing a used car.

The next step is connecting the wires for columns and row to your microcontroller. This is the most challenging part of the project and will require a great amount of soldering. It's not a standard way to do it, but you should plan how to get A saab replacement key (almeida-broberg-2.thoughtlanes.net) to route and connect each column and row. There are 22 microcontroller wires and pins to connect for this keyboard. It includes 5 rows and 17 column.

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 then solder it. This will protect the pins from current, preventing them from getting shorted. A diode lets current only flow in one direction. It has a visual indicator with a black band that shows the direction in which the current will flow.

A few of the tools that are available at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 -- can aid shop customers or DIY customers in certain cases create replacement keys and restore lost immobilizer information, Sanabria says. The tools plug into the OBD port and guide the user through the process, making it more simple than replacing the computer inside the vehicle.

Jumpstarting the battery

Most people keep a set of jumper cables in their trunk to use in an emergency, but jumping a battery on modern vehicles may not be the most efficient option. These vehicles have many digital and computer systems that communicate with each other. A voltage surge while a battery is hooked up to another could cause damage to the components and render your vehicle unable to drive.

Start the vehicle you are using 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 on 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 car's hood. The engine block is an ideal choice. The black cable should not be connected to the negative terminal of the dead battery. This could result in sparks, which would ignite the gasoline that is in the engine compartment.

Once the cables are connected, turn on the disabled vehicle and allow it to run for around five minutes before you disconnect them in reverse order. Remember that the battery on your saab key replacement cost 9-3 is charged when you drive, so it could take a while for the battery to come back to its original level. It's a good idea to invest in a spare key fob as soon as you can, since replacing the one that works requires the installation of a new computer module and special programming to convince it that your missing keys aren't 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 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 any other calamity, it is best to have a spare key. Even even if the key is "new" it won't work.

The dealer will charge you the most expensive dollar for only one working key. We can, however, reset and reprogram the computer's EEPROM to accept an alternative key without replacing the entire system. This could save you a great deal of money. It's cheaper to do this than waiting until you lose the only key.