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The Advanced Guide To Saab Ignition Key Replacement
Saab Key Programming

Saab cars manufactured since 1994 utilize an immobilizer that relies on keys that are coded. A new transponder is required for the addition of an additional key, and special programming. This is usually done by the dealer using the Tech2 diagnostic tool.


The problem is that this can be extremely expensive. This is why you should always have a spare key available.

Transponder key

The transponder key is a piece of hardware with an electronic chip that sends a signal to car when it is inserted into the ignition. The car will check to see whether the signal matches with the one on the key. If the signals match, the car will open and start. This is a great way to prevent car theft and keep your car secure from thieves.

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

The car will recognize the Saab keyfob and permit it to turn on. The car can only recognize the key fob when it has an unmodified chip and has been programmed to match. The car will not start in the event that the key is not programmed to match.

It is essential to have a spare Saab key. This is particularly important for those who live in a rural location where there are a lot of car thieves. You can get a new key for your Saab by going to the dealership, without having to pay their pricey cost. You can get an original key made on the spot at a fraction of what you would spend at the dealership.

Wired key

Saab cars typically come with two keys when new. If you only have one, it is recommended to get an additional key as fast as you can. This is because if the key is lost, the car will need an entirely new CIM and the locking cylinders replaced. This can be expensive especially for used vehicles.

The next step is to wire the wires for the column and row to the microcontroller. This is the most difficult component of the project and it will require lots of soldering. There's no standard way to accomplish this, but it is essential to determine the routes you'll use to solder the columns and rows. For this keyboard, there are five rows and 17 columns. This means there will be 22 microcontroller pins and wires to connect.

Once the rows and columns are soldered, it's time to connect them to key switches. Solder a diode on each key switch pin. This will shield the pins that are used for key switches from current and prevent them from being shorted. A diode lets current only flow in one direction. It comes with a visual indicator that is black, that shows which way current will flow.

Sanabria says that a few of the tools sold in auto parts stores, such as the Autel MaxiIM IM608PRO and IM508 are able to assist shoppers or DIY customers to program replacement keys and restore the immobilizer's data. saab key fob replacement into the OBD port and guide the user through the process, making it easier than replacing the computer in the vehicle.

Jump-starting the battery

The majority of people have an assortment of tools 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 a number of digital and computer systems that communicate with one another. A voltage spike when the battery is connected to another battery could fry these components and leave your car unable to drive.

Start the working vehicle and let it run for about two minutes before connecting the cables to the one that is disabled. Attach the red clip on the positive terminal of the battery that's good. (It will say "POS" or "+".) Attach the other end to a clear, unpainted metal surface under the hood of the affected vehicle. The engine block is a great alternative. The black cable should not be connected to the negative terminal of the dead battery. This could result in sparks, which could ignite the gasoline inside the engine compartment.

Once the cables are connected, you should start the car and allow it to run for around five minutes. Then, disconnect the cables in reverse. The battery in your Saab 9-3 is recharged as you drive. It may take a while it to recharge again. You should invest in an additional key fob as soon as you can. Replacing the original one that works requires the installation and programming of a brand new computer chip.

Replacement case

Saab owners often only have one car key, and if that is lost, they'll be charged. It's expensive to add an additional key and it requires replacing the CIM or TWICE for older models. It's best to have a second key in the event of theft or other disaster and the most effective way is to buy an extra key as soon as you are able to. Even it's "new" it will not function.

Most locksmiths aren't able to help in the event that you only have one working key, and the dealer will charge you for the cost of replacing the computer in your car to make a new replacement. However, we can reset and re-program the computer's EEPROM in order to prepare it to accept an alternative key without replacing the whole system. This could save you a great deal of money. It's also much less expensive than waiting until you lose your only key.

Read More: https://www.autokeys-r-us.co.uk/2981-2/