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11 Ways To Fully Redesign Your Saab Ignition Key Replacement
Saab Key Programming

Saab cars that were built prior to 1994 come with an immobilizer system based on coded keys. A new transponder is required for addition of an additional key, as well as special programming. This is usually done at the dealer using a special Tech2 diagnostic tool.

The issue is that it can be very expensive. This is why you should always have a spare key available.

Transponder key

The transponder is a piece of key with an electronic chip. The chip sends a signal when the key is put into the ignition. The car then checks to see whether the signal matches the one on the key. If the signals match then the car will be able to unlock and begin. This is an excellent way to protect your vehicle from theft.


Transponder keys are a favored feature in vehicles, but you should be aware they are not as secure as classic keys made of metal. While the metal parts of a conventional key can be cut and copied the transponder is protected by an electronic chip. This chip has an 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 can only do this if the fob has a non-modified chip that has been programmed to match the original. The car will not start if the key is not programmed to match.

It is important to have a spare Saab key. This is especially true especially if you reside in a rural area where there are a lot of car thieves. The good news is that you can find a new key for your Saab without needing to visit an auto dealer and pay the expensive prices that they charge. You can get the replacement key on the spot at a fraction of the price you'd spend at dealerships.

Wired key

Saab cars typically come with two keys when they are new. If you have only one, it is recommended to get an additional key as quickly as you can. This is because if it's lost and the car is damaged, it will require an entirely new CIM and the locking cylinders replaced. This could be expensive particularly if you are buying a used car.

The next step is to connect the column and row wires to the microcontroller. This is the most tedious part of the project and will require lots of soldering. There isn't a standard method to do it, however, you should plan how to route and solder each column and row. There are 22 microcontroller wires as well as pins to connect for this keyboard. It includes 5 rows and 17 columns.

After the columns and rows are joined then it's time to connect the key switches. To do this, put a diode on each pin of the key switch and solder it. This will shield the key switch pins from current and also prevent them from being shorted. The diode allows current to only flow in only one direction. It features a visual indicator with a black band that indicates the direction in which current will flow.

Sanabria states that a number of the tools that are sold in auto parts stores, including the Autel MaxiIM IM608PRO and IM508 can assist shoppers or DIY users to program replacement keys and restore data from the immobilizer. g28carkeys.co.uk into the OBD port and guide the user through the procedure, making it much easier than replacing the computer in the vehicle.

Jump-starting the battery

A lot of people keep a set in their trunks to jump-start a car in an emergency, but it may not be a good idea for newer cars. These vehicles are equipped with many electronic devices and computers that communicate with one another. A voltage surge when batteries are connected to another one could cause damage to the parts and render your vehicle unusable.

Connect the cables to the vehicle that is operating. Let it run for two minutes. 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 the affected car. The engine block is a good choice. Don't connect the black cable to the negative terminal of the dead battery because it could spark a spark that ignites the gasoline in the engine bay.

Once the cables are connected, start the vehicle that is disabled and allow it to run for around five minutes before you disconnect the cables in reverse order. The battery in your Saab 9-3 is recharged while you drive. It will take some time for it to fall back. It's a good idea invest in a spare key fob as soon as you can, because replacing the one that works requires the installation of a new computer module and a special program to convince it that your lost keys aren't in the process of trying to steal the car.

Replacement case

Many Saab owners have only one key for their car and if they lose that it's going to cost them. The reason is that it's not inexpensive to add a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. It is recommended to have a backup key in the event of theft or any other catastrophe the best solution is to purchase a second key as early as you can. However, don't purchase a secondhand key even when it's "new." Keys that are claimed-new from aftermarket sellers will not be effective and are almost guaranteed to fail in the most critical moment.

The majority of locksmiths won't be able to help in the event that you only have one working key, and the dealer will charge you high fees to replace the computer in your vehicle for a replacement. We can reset and reprogram the EEEPROM of your computer to be able to accept a new key without having to replace the entire system. That can help you save money. It's less expensive rather than wait until you loose the only key.