This Is The Advanced Guide To Saab Ignition Key Replacement
Saab Key Programming
Saab cars built since about 1994 have an immobilizer feature made up of coded keys. A new transponder is required to allow the addition of an additional key, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.
It can be costly. This is why it is important to always have a spare key at hand.
Transponder key
The transponder can be described as a key with an electronic chip. The chip transmits a signal when the key is placed into the ignition. The car then examines the signal to determine whether it matches the one on the key. If the signals are in sync, the car will unlock and start. This is a great way to guard your car against theft.
Transponder keys are an increasingly popular feature in cars, but you should be aware they are not as secure as classic keys made of metal. While the metal parts of a traditional key may be cut and copied however, a transponder is secured by an electronic chip. The chip is a unique code that is programmed into the car's computer in order to identify it.
When a Saab key fob is used, the car recognizes it and allows it to turn on. However, it is only able to do this if the key fob has an unmodified chip that has been programmed to match it. The car will not start if the key is not programmed to match.
It is vital to have an extra Saab key. This is especially true for those who live in a rural location where there are numerous car thieves. The good news is that you can find a replacement key to your Saab without having to go to a dealership and pay the high prices that they demand. In most instances, you can get a new key made on-the-spot at a fraction of the price of what you would pay at an auto dealer.
Key for Wired
Saab cars are usually delivered with two keys. If you have only one, it's an ideal idea to purchase an additional key fob as soon as is possible in case 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 particularly for used cars.
The next step is connecting the wires for columns and row to your microcontroller. This is the most challenging part of the project and will require a good amount of soldering. There isn't a standard method to go about it, however, you should plan how to route and connect each column and row. For this keyboard, there are five rows and 17 columns. This means there will be 22 microcontroller pins and wires to connect.
Once the rows and columns are soldered, it's time to connect them to the key switches. Solder a diode to each key switch pin. This will protect the pins of the key switch from current and also prevent them from being shorted. A diode permits current to only flow in one direction. It is equipped with a visible indicator with a black band that shows which way current will flow.
Sanabria states that some of the tools that are sold in auto parts stores, including the Autel MaxiIM IM608PRO and the IM508, can help customers who are shopping or DIY users to program replacement keys and restore immobilizer 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 an assortment of tools in their trunk to jump-start a car in an emergency, but it might not be a good option for vehicles with newer technology. These vehicles are equipped with many electronic devices and computers that communicate with each other. A voltage surge when batteries are connected to another can fry the components, rendering your car undriveable.
Start the vehicle that is working and allow it to run for around two minutes before you connect the cables to the one that is disabled. Attach saab car key replacement on the positive terminal of the good battery. (It will read "POS" or "+".) Attach the other end to a clean unpainted metal surface under the hood of the disabled vehicle. The engine block is a good choice. Do not connect the black cable to the negative terminal of the dead battery as it could ignite a spark that ignites the gasoline in the engine bay.
Once the cables are connected, you can start the vehicle you are not using and let it run for about five minutes before disconnecting the cables in reverse order. The battery in your Saab 9-3 will be recharged while you drive. It will take a while for it to return to its original state. You should purchase a second key fob, as soon as you can. Replacing the only one that works requires the installation and programming of a new computer chip.
Replacement Case
Saab owners usually have only one car key, and if it is lost, they will be charged. It's expensive to buy an additional key and it requires replacing the CIM or TWICE for older models. In the event of theft or any other calamity it is advisable to have an extra key. Don't purchase a used key, even when it's "new." Keys that are claimed as new from sellers selling aftermarket keys won't be effective and are almost guaranteed to fail at the critical 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 for it 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 less expensive than wait until you lose your only key.