Saab Key Programming
Saab cars manufactured since 1994 feature an immobilizer mechanism built on coded keys. A new transponder is required to allow the inclusion of an additional key, and special programming. This is usually done by the dealer using a Tech2 diagnostic tool.
The problem is that it can be quite costly. This is why you should always have a spare key on hand.
Transponder key
The transponder is a key that has an electronic chip. The chip transmits a signal when the key is placed into the ignition. The car then checks to see whether the signal is the same as the one on the key. If the signals are in sync the car will then unlock and start. This is a great way to stop car theft and keep your vehicle safe from thieves.
Transponder keys may be a popular addition to cars, but they are not as safe as traditional keys made of metal. While the metal component of a traditional key can be cut and copied, a transponder is protected by an electronic chip. The chip is a unique code which is programmed into a car's computer order to identify it.
When a Saab key fob is used, the car recognizes it and allows it to turn on. The car will only recognize the key fob if it has a chip that is unmodified and programmed to match. The car will not start if the key is not programmed to match.
It is vital to have a spare Saab key. This is particularly important when you live in a rural location where there are numerous car thieves. You can get a new key for your Saab by visiting the dealership without paying their high prices. You can get an original key made on the spot at a fraction of the price you'd spend at dealerships.
Wired key
Saab cars are usually provided with two keys. If you only have one, it's best to acquire an additional key fob as quickly as you can in case you lose it, the car will require an entirely new CIM unit and the locking cylinders will need to be replaced. This can be costly particularly if you are buying a second-hand car.
The next step is connecting the wires for columns and rows to your microcontroller. This is the toughest part of the project and will require lots of soldering. There's no standard way to accomplish this, however it is important to think about the way you'll route and solder the rows and columns. For this keyboard, there are five rows and 17 columns. This means there will be 22 microcontroller pins and wires to connect.
After the columns and rows are soldered, it's time to connect them to key switches. To do this, you need to place a diode across each pin of the key switch and solder it. This will shield the pins from current and prevent them from being shortened. A diode allows current to only flow in only one direction. It is equipped with a visible indicator with a black band that indicates which direction current will flow.
Sanabria states that a number of the tools offered in auto parts stores, such as the Autel MaxiIM IM608PRO or IM508 will assist shoppers or DIY customers to program replacement keys and restore the immobilizer's data. The tools connect to the OBD port and guide the customer through the process, making it easier than replacing the computer inside the vehicle.
Jump starting the battery
Most people keep a set of jumper cables in their trunks for emergency situations however, jumping a battery in newer automobiles might not be the best choice. These vehicles are equipped with numerous digital and computers that communicate with one another. A surge in voltage when the battery is connected to another one could damage these components and render your car unable to drive.
Connect the cables to the vehicle working. Allow it to run for two minutes. Attach the red clip on the positive terminal of the battery that is good. ( saab key replacement bristol will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface under the disabled car's hood. The engine block is an ideal choice. The black cable is not to be connected to the negative terminal of the dead battery. This could result in sparks, which could ignite gasoline in the engine compartment.
Once the cables are connected, you should start the car and let it run for approximately five minutes. Then disconnect the cables in reverse. Be aware that the battery of the Saab 9-3 gets recharged when you drive, and it may take some time for the battery to come back down again. You should consider purchasing a second key fob, when you can. The replacement of the one that works requires the installation and programming of a new computer chip.
Replacement Case
Many Saab owners have only one key for their car and if they lose it, they'll be charged. It's costly to add keys and will require replacing the CIM or TWICE for older models. In the event of theft or any other disaster it is recommended to have a spare key. Don't buy a secondhand key, even it's "new." Keys that are claimed as new from aftermarket sellers will not perform and are almost certain to fail at the critical moment.
The majority of locksmiths won't be able to help when you only have one working key, and the dealer will charge top dollar to replace the computer in your vehicle to make a replacement. We can reset and reprogram the EEEPROM of your computer to get it ready to accept a replacement key without replacing the entire system. This could save you a lot of money. It's also a lot cheaper than waiting until you lose your sole key.