Why We Why We Saab Ignition Key Replacement (And You Should Also!)
Saab Key Programming
Saab cars built since about 1994 have an immobilizer feature built on coded keys. A new transponder is required for the addition of an extra key, and special programming. This is usually done by the dealer using a special Tech2 diagnostic tool.
The problem is that it can be quite costly. This is why you should always keep a spare key in your possession.
Transponder key
The transponder key comes equipped with an electronic chip. It sends a signal back to the car when it is put into the ignition. The car then examines the signal to see whether it is identical to the one in the key. If the signals are the same, the car will unlock itself and start. This is a great method to deter car theft and keep your car safe from thieves.
Transponder keys are a popular feature in cars, but you should be aware they are not as secure as traditional keys made of metal. The metal part of the traditional keys can be easily cut and copied, however a transponder has an electronic chip that safeguards it. This chip contains an unique code that's programmed into a car's computer in order to identify it.
The car will recognize the Saab keyfob and allow it to be turned on. The car will only recognize the key fob if the device has a chip that is unmodified and has been programmed to match. If not, the car will refuse to accept the key and will not start.
It is essential to have an extra Saab key. This is especially important when you live in a rural location that has numerous car thieves. You can purchase a new key for your Saab by going to the dealership, without having to pay their pricey prices. In the majority of instances, you can get an original key made on the spot at a fraction of the cost of what you would pay at the dealer.
Wired key
Saab cars usually come with two keys when they're new. If you have only one, it's a good idea to get an additional key fob as soon as possible as if you lose it, your car will require a new CIM unit, and the locking cylinders need to be replaced. This can be costly especially if you're purchasing a used car.
The next step is to wire the wires for the column and row to the microcontroller. This is the most laborious part of the project and it will require a lot of soldering. There is no standard method to do this, but it is crucial to plan the way you'll route and solder the rows and columns. 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 joined, it is time to connect the key switches. Solder a diode to each key switch pin. This will protect the key switch pins from current and stop them from being shorted. A diode only allows the current to flow in a single direction, and it has a black band visual indicator that indicates the direction in which current will flow.
A few of the tools that are available at auto parts stores -- such as the Autel MaxiIM IM608 Pro and IM508 -- may aid shop customers or DIY customers in certain cases replace keys in the program and restore lost immobilizer information, Sanabria says. 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.
Jumpstarting the battery
A lot of people keep a set of jumper cables in their trunks in case of emergency, but jumping a battery for newer vehicles may not be the best idea. These cars are equipped with a variety of digital and computer systems that communicate with each other. A voltage surge when the battery is connected another one could cause damage to the parts making your car inoperable.
Connect the cables to the vehicle that is working. Let it run for two minutes. Attach the red clip on the positive terminal of the battery that is good. (It will say "POS" or "+".) Attach the other end to a clean unpainted metal surface beneath the hood of the affected vehicle. The engine block is a great choice. The black cable should not be connected to the negative terminal of the dead battery. This could cause sparks, which could ignite the gasoline in the engine compartment.
Once the cables are connected, you should begin the car and allow it to run for around five minutes. Then, disconnect the cables in reverse. The battery in your Saab 9-3 is recharged while you drive. It takes a while for it to drop back down. It is recommended to purchase a second key fob, as soon as possible. Replacing the only one that works requires the installation and programming of a brand new computer chip.
saab 900 key have only one car key, and if it is lost, they'll be charged. The reason for this is that it's expensive to purchase a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. In the event of theft, or any other catastrophe it is best to have an extra key. Even when the key is "new" it won't work.
Most locksmiths cannot help you with a single working key, and the dealer will charge high prices to replace the computer in your car for a replacement. We can reset and reprogram the EEEPROM of your computer to be able to accept a replacement key without replacing the entire system. This could save you a great deal of money. It's also a lot cheaper than waiting until you lose the only key.