20 Things You Must Be Educated About Saab Ignition Key Replacement
Saab Key Programming
Saab cars that were built prior to 1994 have an immobilizer feature that is based on codes for keys. In order to add a second key, it requires an entirely new transponder and programming. This is usually done by the dealer using a Tech2 diagnostic tool.
This can be expensive. It is always advisable to keep an extra set of keys available.
Transponder key
The transponder key is a piece of hardware equipped with an electronic chip. It sends a signal back to the car when it is inserted into ignition. The car will check to see whether the signal matches the one on the key. If the signals match it will open itself and begin. This is a great method to prevent auto theft and keep your car safe from thieves.
Transponder keys are a popular feature in cars, but you must be aware that they're not as secure as classic keys made of metal. While the metal portion of a traditional key may be cut and copied the transponder is protected by an electronic chip. The chip has a unique code that is inserted into a car's computers in order 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 so if the key fob is unmodified and has a chip that has been programmed to match it. The car will not start in the event that the key is not programmed to match.
It's essential to ensure that you have an extra key for your Saab. This is especially important when you live in a rural location where there are a lot of car thieves. The good news is that it's possible to obtain a replacement key for your Saab without needing to visit an auto dealership and pay the expensive prices that they charge. In most instances, you can get a brand new key made right on the spot at a fraction of the price of what you'd pay at a dealer.
Key for Wired
Saab cars are usually supplied with two keys. If you have only one, you should get an additional key as quickly as you can. This is because if you lose it, the car will need an entirely new CIM and the locking cylinders replaced. This can be costly especially for used vehicles.
The next step is connecting the wires of columns and row to your microcontroller. This is the most difficult part of the project and will require a good deal of soldering. It's not a standard way to do it, but you should plan how to connect and solder each column and row. There are 22 microcontroller pins and wires to connect for this keyboard. It includes 5 rows and 17 columns.
After the columns and rows are soldered, it's the time to connect them to key switches. Solder a diode to each key switch pin. This will shield the pins from current, and prevent them from being cut off. A diode permits current to only flow in one direction. It features a visual indicator, 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, like the Autel MaxiIM IM608PRO or IM508, can help customers shopping or DIY customers to program replacement keys and restore data from the immobilizer. The tools connect to OBD ports and guide the user through each step, making the process easier than replacing the car's computer.
Jumpstarting the battery
Most people keep a set of jumper cables in their trunks for emergencies however, jumping a battery for newer vehicles may not be the best idea. These cars have a variety of electronic devices and computers that communicate with each other. A voltage surge while the battery is connected to another can fry these components, rendering your vehicle undriveable.
Start the vehicle you are using and allow it to run for around two minutes before you connect the cables to the disabled one. Attach the red clip to the positive terminal on the good battery (it will have "POS" or "+" on it). Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled car's hood. The engine block is an ideal choice. Do not connect the black cable to the negative terminal on the dead battery, since it could spark an ignition source that ignites gasoline in the engine bay.
Once the cables are connected, turn on the vehicle you are not using and let it run for approximately five minutes before disconnecting the cables in reverse order. The battery in your Saab 9-3 will recharge while you drive. It may take a while 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 only functioning one requires the installation of a new computer module and special programming to convince it that your missing keys aren't attempting to steal the car.
Replacement Case
Saab owners usually have only one car key, and if it is lost, they'll be charged. saab 93 replacement key to add the key and also requires replacing the CIM or TWICE in the case of older models. It is recommended to have a spare key in the event of theft or any other catastrophe the best solution is to purchase a second key as soon as you are able to. Even when the key is "new", it will not function.
The dealer will charge you the most expensive dollar if you only have one working key. We can reset and reprogram the computer's EEEPROM to get it ready to accept a new key without the need to replace the entire system. This can save you a significant amount of money. It's also less expensive than waiting until you lose your one key.