The Advanced Guide To Saab Ignition Key Replacement
Saab Key Programming
Saab cars that were built prior to 1994 come with an immobilizer system made up of coded keys. To add an additional key, you need the purchase of a new transponder as well as special programming. This is usually done by the dealer using a special Tech2 diagnostic tool.
The issue is that this could be very expensive. It is always advisable to keep an extra set of keys on hand.
Transponder key
The transponder key comes equipped with an electronic chip. It sends a signal to the car when it is inserted into the ignition. The car then checks to see whether the signal matches with the one on the key. If the signals match the car will then unlock itself and begin. This is a great way to avoid auto theft and keep your car secure from thieves.
Transponder keys may be an increasingly popular feature for cars, but they're not as secure as traditional keys made of metal. While the metal parts of a conventional key can be cut and copied however, a transponder is secured by an electronic chip. The chip has a unique code that is inserted into a car's computers in order 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 programmed to match. The car won't start in the event that the key is not programmed to match.
It's crucial to ensure that you have a spare key for your Saab. This is especially important if you reside in a rural region that has numerous car thieves. The good part is that you can get a replacement key for your Saab without having to go to a dealership and pay the hefty prices they ask. In most cases, you can have a new key created on-the-spot at a fraction of the price of what you'd pay at a dealer.
Wired key
Saab cars typically come with two keys upon purchase. If you only own one, you should get an extra key as soon as you can. This is because, if it's lost, the car will need a new CIM and the locking cylinders replaced. This can be costly, especially 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 requires a significant deal of soldering. There is no standard method to accomplish this, but it is crucial to plan 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.
Once the rows and columns are soldered, it's the time to connect them to the key switches. Solder a diode on each key switch pin. This will protect the pins from current, and prevent them from being cut off. A diode only allows the flow of current to be in one direction, and it comes with a an indicator of black color that shows the direction in which current will flow.
Sanabria says that some of the tools available in auto parts stores, such as the Autel MaxiIM IM608PRO and IM508 can assist customers shopping or DIY customers to program replacement keys and restore data from the immobilizer. The tools connect to OBD ports and help the customer through each step making the process simpler than replacing the vehicle's computer.
Jump-starting the battery
A lot of people keep a set in their trunk to start a car in case of emergency, but it might not be a good option for vehicles with newer technology. These cars have a variety of digital and computer systems that communicate with each other. A voltage surge when batteries are connected to another one could cause damage to the parts, rendering your car undriveable.
Connect the cables to the vehicle that is working. Allow it to run for two minutes. Attach the red clip on the positive terminal of the good battery. (It will read "POS" or "+".) 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 option. The black cable should not be connected to the negative terminal of the dead battery. This could cause sparks, which would ignite the gasoline in the engine compartment.
Once the cables are connected the vehicle that is disabled and let it run for approximately five minutes before disconnecting them in reverse order. The battery in your Saab 9-3 is recharged while you drive. It may take a while it to fall back. It is a good idea to invest in a spare key fob as soon as you can, since replacing the one that works requires the installation of a brand new computer module and a special program to convince the system that your lost keys aren't trying to steal the car.
Replacement Case
Many Saab owners only have one key for their vehicle and if they lose that key, it will cost them. It's expensive to buy the key and also requires replacing the CIM or TWICE in the case of older models. In saab 9-3 replacement key of theft, or any other disaster, it is best to have an extra key. Don't buy a secondhand key even when it's "new." Claimed-new keys from aftermarket sellers will not work and are almost guaranteed to fail in the most critical moment.
Most locksmiths can't help you if you have only one working key, and the dealer will charge you high fees to replace the computer in your vehicle to make a new replacement. We can reset and reprogram the computer's EEEPROM to get it ready to accept a new key without having to replace the entire system. This could save you a lot of money. It's less expensive rather than wait until you loose the only key.