Three Reasons Why Three Reasons Your Saab Ignition Key Replacement Is Broken And How To Fix It
Saab Key Programming
Saab cars built since 1994 utilize an immobilizer that relies on key codes. The addition of a key requires a new transponder and special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool.
The problem is that it can be quite costly. This is the reason why you should always have a spare key available.
Transponder key
The transponder is a key equipped with 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 matches with the one on the key. If both signals match the car will then unlock itself and begin. This is a great way to protect your car from theft.
Transponder keys are a popular addition to cars, but they're not as safe as traditional metal keys. The metal component of the traditional key can easily be cut or copied, while a transponder has an electronic chip that safeguards it. This chip has a unique code programmed into the car's computers to identify it.
The car will recognize the Saab keyfob and permit it to be turned on. However, it will only do this if your key fob is equipped with a chip that is not modified that has been programmed to match the original. The car won't start when the key isn't programmed to match.
It is crucial to have a spare Saab key. This is particularly important if you live in a rural area, where there are many car thieves. The good thing is that you can get a replacement key for your Saab without having to go to an auto dealership and pay the hefty prices they ask. You can get a replacement key made on the spot for less than half the price you'd spend at dealerships.
Wired key
Saab cars usually come with two keys when they're new. If you have only one, it is best to acquire an additional key fob as soon as is possible as if you lose it, your car will require an entirely new CIM unit, and the locking cylinders will need to be replaced. This can be costly particularly for used cars.
The next step is to connect the wires of columns and row to your microcontroller. This is the most difficult part of the project, and it will require a lot of soldering. There is no standard method to do this, but it is essential to determine the route you'll take and solder the columns and rows. For this keyboard, there are five rows and 17 columns, which means there will be 22 microcontroller wires and pins that you need to connect.
After the rows and column are soldered together after which it is time to connect the key switches. To do this, you need to place an inverter over each pin on the key switch and solder it. This will protect the pins from current, thus preventing them from being shortened. The diode will only allow the current to flow in a single direction, and it comes with a an indicator of black color that shows the direction in which current will flow.
Sanabria states that a number of the tools that are sold in auto parts stores, including the Autel MaxiIM IM608PRO or IM508 are able to assist customers who are shopping or DIY customers to program replacement keys and restore the immobilizer's data. The tools connect to the OBD port and automatically guide the user through the procedure, making it much easier than replacing the computer in the vehicle.
Jump-starting the battery
Most people keep an assortment of tools in their trunks to jump-start a car in case of emergency, but it may not be the best option for vehicles with newer technology. These vehicles are equipped with a number of computers and digital devices that communicate with each other. A voltage surge while the battery is connected to another one could damage these components and render your vehicle undriveable.
Start the working vehicle and allow it to run for around two minutes before connecting the cables to the non-working one. 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 under the disabled car's hood. The engine block is a good option. The black cable should not be connected to the negative terminal of the dead battery. saab 9-3 key replacement could create sparks that could ignite the 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. The battery in your Saab 9-3 is recharged as you drive. It will take some time for it to drop back down. You should invest in another key fob as soon as you can. The replacement of the one that works requires the installation and programming of a brand new computer chip.
Replacement case
Many Saab owners have only one key for their car and if they lose that they'll be charged. The reason is that it's not inexpensive to purchase a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. In the event of theft or any other calamity, it is best to have an extra key. But don't buy a used key even the case that it's "new." Keys that are claimed as new from aftermarket sellers will not work and are likely to fail at the crucial moment.
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 having to replace the entire system. This can save you a significant amount of money. It's also cheaper than waiting until you lose your one key.
