15 Reasons To Not Ignore Saab Ignition Key Replacement
Saab Key Programming
Saab cars made since 1994 use an immobilizer system based on key codes. A new transponder is required in order to enable the addition of a second key, as well as special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.
G28CarKeys can be costly. It is recommended to always have an extra set of keys available.
Transponder key
The transponder can be described as a key with an electronic chip. This chip sends a signal when the key is put into the ignition. The car is able to check whether the signal is the same as the one on the key. If the signals are in sync then the car will be able to unlock and start. This is a fantastic way to protect your car from theft.
Transponder keys can be a popular addition to cars, but they are not as secure as traditional metal keys. While the metal part of a traditional key can be cut and copied the transponder is protected by an electronic chip. The chip is a unique code that is programmed 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 will only do so if the key fob is unmodified and has a chip that has been programmed to match it. If not, the car will reject the key and refuse to start.
It is important to have an extra Saab key. This is especially important for those who live in a rural area where there are a lot of car burglars. You can get a brand new key for your Saab by visiting the dealership without paying pricey costs. In most instances, you can get a new key made on-the-spot for less than half the price of what you'd pay at dealerships.
Key for Wired
Saab cars are usually supplied with two keys. If you only have one, it's a good idea to get an extra key fob as quickly as you can in case you lose it, your car will require an entirely new CIM unit, and the locking cylinders will have 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 component of the project and will require lots of soldering. There's no standard way to accomplish this, but it is essential to determine the way you'll route and solder the columns and rows. For this keyboard, there are 5 rows and 17 columns. So there will be 22 microcontroller pins and wires to connect.
After the columns and rows are soldered, it's time to connect them to the key switches. Solder a diode to each key switch pin. This will protect the key switch pins from current and prevent them from being shorted. A diode only allows the flow of current to be in one direction, and it also has a a black band visual indicator that indicates the direction in which current will flow.
Sanabria states that a number of the tools sold in auto parts stores, like the Autel MaxiIM IM608PRO and the IM508 can assist customers shopping or DIY customers to program replacement keys and restore the immobilizer's data. The tools plug into the OBD port and automatically guide the customer through the process, making it more simple than replacing the computer in the vehicle.
Jump-starting the battery
The majority of people have a set of jumper cables in their trunks for emergency situations, but jumping a battery for newer vehicles might not be the best idea. These vehicles are equipped with many digital and computer systems that communicate with one another. A voltage surge while the battery is connected to another can fry these components, rendering your vehicle unable to drive.
Connect the cables to the vehicle working. Let it run for two minutes. Attach the red clip to the positive terminal of the battery that is good (it will have "POS" or "+" on it). Attach the other end of the black cable to a clean, unpainted metal surface underneath the disabled car's hood--the engine block is a good choice. Don't connect the black cable to the negative terminal of the dead battery as it could ignite an ignition that ignites the gasoline in the engine bay.
Once the cables are connected, begin the car and let it run for approximately five minutes. Then disconnect them in reverse. Be aware that the battery in the Saab 9-3 gets recharged during your drive, which means it could take a while for the battery to go back to normal. It is a good idea to invest in a spare key fob as soon as you can, since replacing the only working one requires the installation of a new computer module and a special program to convince it that the lost keys aren't in the process of 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 for this is that it's costly to replace a key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, and programming. It is best to have a spare key in the event of theft or other disaster and the best option is to buy an extra key as early as you can. Even if the key is "new" it won't work.
The dealer will charge you the highest dollar if you have only one working key. We can reset and reprogram the computer's EEEPROM to be able to accept a new key without the need to replace the entire system. This can help you save a significant amount of money. It's also much less expensive than waiting until you lose your sole key.