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How To Save Money On Saab Ignition Key Replacement
Saab Key Programming

Saab cars manufactured from 1994 have an immobilizer that relies on key codes. A new transponder is required for addition of an extra key, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.

It can be costly. This is the reason why you should always have a spare key available.

Transponder key

The transponder keys are keys with an electronic chip that sends a signal to car when it is placed in the ignition. The car is able to check if the signal matches the one on the key. If the signals are in sync, the car will open and start. This is a great way to safeguard your car from theft.

Transponder keys are a popular feature in automobiles, however you should be aware they're not as secure as traditional metal keys. The metal component of the traditional key is easily cut and copied, whereas transponders are protected by an electronic chip that protects it. This chip contains an individual code that is programmed into the car's computer to identify it.

The car will recognize the Saab keyfob and permit it to be turned on. However, it is only able to do so if the key fob is equipped with a chip that is not modified that has been programmed to match it. The car will not start when the key isn't programmed to match.

It is essential to have a spare Saab key. This is particularly important especially if you reside in a rural location where there are many car thieves. You can obtain a replacement key for your Saab by visiting the dealership without paying expensive prices. You can get the replacement key on the spot at a fraction of the price you'd spend at an auto dealer.

Key for Wired

Saab cars typically come with two keys upon purchase. If you only have one, it is recommended to get an additional key as quickly as you can. This is because, if it's lost the car will require an entirely new CIM and the locking cylinders replaced. This can be costly especially for cars that are used.

The next step is connecting the wires for columns and row to your microcontroller. This is the most laborious part of the project and it will require lots of soldering. There is no standardized way to accomplish this, however it is important to think about how you will route and solder the columns and rows. There are 22 microcontroller wires and pins to connect to this keyboard. It has 5 rows and 17 columns.

After the columns and rows are joined then it's time to connect the key switches. Solder a diode on each key switch pin. This will shield the pins on the key switch from current and also prevent them from being shorted. A diode only allows the current to flow in a single direction, and has a an indicator in black that indicates the direction current will flow.

Sanabria states that some of the tools available in auto parts stores, like the Autel MaxiIM IM608PRO or IM508 will assist customers shopping or DIY customers to program replacement keys and restore the immobilizer's data. The tools connect to OBD ports and guide the customer through each step and make the process more straightforward than replacing the vehicle's computer.

Jump-starting the battery

A lot of people keep an item in their trunks to start a vehicle in the event of an emergency, but it might not be the best idea for vehicles that are newer. These vehicles are equipped with numerous computers and digital devices which communicate with each other. A voltage spike when a battery is hooked up to another can fry these components and render your car undriveable.

Start the vehicle that is working and allow it to run for approximately two minutes before you connect the cables to the battery that is not working. Attach the red clip on the positive terminal of the battery that is good. (It will say "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 ideal choice. The black cable should not be connected to the negative terminal of the dead battery. This could cause a spark, which would ignite the gasoline in the engine compartment.

After the cables have been connected, you should begin the car and let it run for about five minutes. Then, disconnect the cables in reverse. Remember that saab 93 key fob on your Saab 9-3 is charged when you drive, so it may take some time for the battery to go back down again. It's a good idea to purchase a spare fob as soon as you can, because replacing the only functioning one requires the installation of a brand new computer module and a special program to convince it that the lost keys are not trying to steal the car.

Replacement Case

Many Saab owners only have one key for their vehicle and if they lose that it's going to cost them. The reason for this is that it's expensive to buy a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. In the event of theft or any other catastrophe it is advisable to have a spare key. Don't buy a secondhand key, even the case that it's "new." Keys that are claimed to be new from a second-hand store will not work and are likely to fail in the crucial moment.


Most locksmiths aren't able to help if you have only one working key, and the dealer will charge high fees to replace the computer in your car to create a replacement. We can, however, reset and reprogram the computer's EEPROM to accept the new 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 sole key.

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