The Advanced Guide To Saab Ignition Key Replacement
Saab Key Programming
Saab cars made since 1994 use an immobilizer system based on a set of keys. A new transponder is required to allow the addition of a second key, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.
This can be expensive. This is the reason why you should always have a spare key available.
Transponder key
The transponder key is a key with an electronic chip that sends a signal back to the car when it is inserted into ignition. The car is able to check if the signal matches the one on the key. If both signals match the car will be able to unlock itself and start. This is a fantastic way to protect your car from theft.
Transponder keys can be an increasingly popular feature for cars, but they're not as safe as traditional metal keys. The metal component of a traditional key is easily cut and copied, however the transponder is protected by an electronic chip which protects it. This chip contains a unique code embedded into the car's computer to identify it.
The car will recognize the Saab keyfob, and allow it to turn on. The car can only recognize the key fob if it has an unmodified chip and has been programmed to match. In the absence of that, the car will refuse to accept the key and will not start.
It is essential to have an extra Saab key. This is particularly true when you live in a rural location that has numerous car thieves. You can get a brand new key for your Saab by visiting the dealership without paying their pricey costs. In most cases, you can have a new key made on-the-spot for less than half the cost of what you would pay at the dealer.
Key for Wired
Saab cars typically come with two keys when they're new. If you have only one, it's an ideal idea to purchase an extra key fob as soon as possible, because if you lose it the car will require the replacement of a CIM unit and the locking cylinders will have to be replaced. This can be costly, especially for used cars.
The next step is to connect the wires for the column and row to the microcontroller. This is the most difficult part of the project and it will require a lot of soldering. There's no standard way to do this, but it's important to plan out how you will 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.
Once the rows and columns are soldered, it's the time to connect them to the key switches. To do this you must place an inverter over each key switch pin and then solder it. This will shield the pins that are used for key switches from current and prevent them from being shorted. A diode permits current to only flow in only one direction. It features a visual indicator that is black, that indicates the direction in which current will flow.
Some of the tools available at auto parts storeslike the Autel MaxiIM IM608 PRO and IM508 -- could help shop customers or even DIY customers in some cases program replacement keys and restore lost immobilizer information, Sanabria says. The tools connect to OBD ports and help the customer through each step which makes the process much easier than replacing the car's computer.
Jump starting the battery
The majority of people have a set of jumper cables in their trunks in case of emergency however, jumping a battery for newer cars might not be the best idea. They have numerous computers and digital devices that communicate with one another. A surge in voltage when a battery is hooked up to another can fry the components and render your vehicle unable to drive.
Connect the cables to the vehicle operating. Let it run for two minutes. Attach saab 9-3 key fob programming TheKeyLab to the positive terminal of the good battery. (It will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled car's hood. The engine block would be an excellent choice. Don't connect the black cable to the negative terminal of the dead battery because it could ignite a spark that ignites the gasoline in the engine bay.
Once the cables are connected, you can start the disabled vehicle and allow it to run for around 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 fall back. It's a good idea buy a spare key fob as soon as you can, since replacing the only working one requires the installation of a brand new computer module and a special program to convince it that the lost keys aren't trying to steal the car.
Replacement Case
Saab owners usually have only one car key, and if it is lost, they'll be charged. It's expensive to buy keys and will require replacing the CIM or TWICE in the case of older models. It is recommended to have a second key in case of theft or any other catastrophe and the most effective way is to purchase an additional key as quickly as you can. But don't buy a used key even the case that it's "new." Keys that are claimed to be new from sellers selling aftermarket keys won't be effective and are almost guaranteed to fail in the crucial moment.
The dealer will charge the highest dollars if you only have one working key. We can reset and reprogram the computer's EEEPROM in order to be able to accept a new key without having to replace the entire system. This could help you save a significant amount of money. It's also a lot cheaper than waiting until you lose your sole key.