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Saab ignition key replacement Key Programming

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

The problem is that this can be very expensive. You should always keep an extra set of keys in your possession.

Transponder key

The transponder key comes equipped with an electronic chip. It sends a signal back to the car when it is placed in the ignition. The car then checks to see if the signal matches the one on the key. If the signals are identical, the car will unlock itself and start. This is an excellent way to protect your car from theft.

Transponder keys are a favored feature in automobiles, but you should be aware that they aren't as secure as classic metal keys. While the metal parts of a conventional key can be cut and copied, a transponder is protected by an electronic chip. This chip contains a unique code that is programmed into the car's computers to identify it.

When a Saab key fob is used the car recognizes it and allows it to turn on. However, it will only do this if your key fob has an unmodified chip that has been programmed to match it. In the absence of that, the car will reject the key and refuse to start.

It's crucial to ensure that you have a spare key for your Saab. This is especially true especially if you reside in a rural location where there are a lot of car burglars. You can obtain a replacement key for your Saab by visiting the dealership without paying their pricey prices. In the majority of cases, you can have a new key created on-the-spot for less than half the price of what you'd pay at an auto dealer.

Key for Wired

Saab cars are typically delivered with two keys. If you have only one, you should get an additional key as fast as you can. This is because if it's lost the car will require a new CIM and the locking cylinders replaced. This can be costly especially for used vehicles.

The next step is to connect the column and row wires to the microcontroller. This is the most tedious part of the project, and it will require a lot of soldering. There is no standardized way to accomplish this, however it is important to think about the way you'll route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns, so there will be 22 microcontroller wires and pins to connect.

Once the rows and columns are soldered, it's time to connect them to the key switches. To do this, put a diode across each key switch pin and then solder it. This will shield the pins that are used for key switches from current and also prevent them from being shorted. A diode only allows the current to flow in a single direction, and it also has a the black band as a visual indicator that shows the direction in which current will flow.

Some of the tools available at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 -- can aid shop customers or DIY customers in certain cases replace keys in the program and restore lost immobilizer data Sanabria says. The tools plug into OBD ports and guide the customer through each step, making the process easier than replacing the car's computer.

Jump starting the battery

The majority of people have a set in their trunk to jump-start a car in case of emergency, but it may not be the best option for vehicles with newer technology. These vehicles have many digital and computer systems that communicate with each other. A voltage surge when batteries are connected to another one could cause damage to the parts making your car inoperable.

Start the working vehicle and let it run for about two minutes before you connect the cables to the disabled one. Attach the red clip on the positive terminal of the battery that is good. (It will read "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the car's hood--the engine block is an excellent choice. Don't 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, begin the car and allow it to run for around five minutes. Then, disconnect them in reverse. Remember that the battery on your Saab 9-3 is charged when you drive, and it could take a while for the battery to come back down again. You should purchase a second key fob, as soon as possible. Replacing the one that works requires the installation and programming of a new computer chip.

Replacement Case

Many saab replacement keys uk owners have only one key for their vehicle and if they lose that they'll be charged. It's expensive to add the key and also requires replacing the CIM or TWICE in the case of older models. It is best to have a spare key in case of theft or any other catastrophe and the best option is to purchase a second key as early as you can. Even if the key is "new" it will not function.

The dealer will charge you the highest dollars if you only have one working key. We can, however, reset and re-program your computer's EEPROM to prepare it to accept a new key without replacing the whole system. This can save you lots of money. It's more affordable instead of waiting until you loose the only key.