11 Ways To Completely Redesign Your Saab Ignition Key Replacement

Saab Key Programming

Saab cars made since 1994 feature an immobilizer system that is based on a set of keys. A new transponder is required to allow the addition of an extra key, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.

The issue is that this could be quite costly. Always keep an extra set of keys on hand.

Transponder key

The transponder keys are keys with an electronic chip that sends a signal to the car when it is put into the ignition. The car will then check the signal to see whether it is the same as that of the key. If the signals are identical the car will be able to unlock itself and begin. This is a fantastic way to guard your car against theft.

Transponder keys can be an extremely popular accessory for automobiles, but they are not as safe as traditional metal keys. The metal component of the traditional key can be easily cut or copied, while transponders are protected by an electronic chip which protects it. This chip contains a unique code embedded into the car's computer to identify it.

The car will recognize the Saab keyfob and allow it to turn on. The car will only recognize the key fob when it has an unmodified chip and has been programmed to match. Otherwise, the car would reject the key and not start.

It is essential to have a spare Saab key. This is especially true if you reside in a rural location that has numerous car thieves. The good news is that it's possible to find a replacement key to your Saab without having to go to a dealer and pay the hefty prices they ask. You can have a replacement key created on the spot for less than half what you would spend at a dealership.

Key for Wired

saab 9-5 key replacement cars are usually supplied with two keys. If you only have one, it's a good idea to get an extra key fob as soon as possible, because if you lose it, the car will require an entirely new CIM unit, and the locking cylinders need to be replaced. This can be expensive, especially for used cars.

The next step is to connect the wires for the column and row to the microcontroller. This is the toughest part of the project and will require lots of soldering. There's no standard way to do it, but you should think about how to route and connect each column and row. There are 22 microcontroller wires and pins to connect for this keyboard. It has five rows and 17 columns.

After the rows and column are soldered together, it is time to connect the key switches. To do this, you need to place a diode across each pin of the key switch and solder it. This will protect the pins from current, and prevent them from being shortened. A diode permits current to only flow in only one direction. It is equipped with a visible indicator of a black line that shows the direction in which the current will flow.

Some of the tools available at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- may assist customers at the shop or DIY users in some cases program replacement keys and restore lost immobilizer information, Sanabria says. The tools connect to OBD ports and guide the customer through each step and make the process more straightforward than replacing the car's computer.

Jumpstarting the battery

Most people keep a set of jumper cables in their trunk for emergencies, but jumping a battery on modern vehicles might not be the best option. These vehicles have many digital and electronic devices that communicate with each other. A surge in voltage when the battery is connected to another can fry these components and render your vehicle unable to drive.

Connect the cables to the vehicle working. Allow it to 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 of the black cable to a clean, unpainted metal surface underneath the car's hood. 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 an ignition spark that ignites the gasoline in the engine bay.

Once the cables are connected, you can start the vehicle you are not using and let it run for about five minutes before you disconnect them in reverse order. The battery in your saab key fob programming 9-3 will be recharged while you drive. It takes a while for it to drop back down. It's a good idea to invest in a spare key fob as soon as you can, because replacing the one that works requires the installation of a brand new computer module and a special program to convince the system that your lost saab key keys are not trying to steal the car.

Replacement case

Saab owners usually have only one car key, and if it is lost, they'll be charged. The reason is that it's not inexpensive to buy a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. It is best to have a backup key in the event of theft or any other catastrophe the best solution is to purchase a second key as quickly as you can. However, don't purchase a secondhand key, even when it's "new." Claimed-new keys from a second-hand store will not be effective and are almost guaranteed to fail at the crucial moment.

The dealer will charge you the most expensive dollar for only one working key. We can, however, reset and re-program the computer's EEPROM to accept the new key without having to replace the whole system. This could save you lots of money. It's more affordable instead of waiting until you lose the only key.