15 Reasons To Not Ignore Saab Ignition Key Replacement
saab 9-3 replacement key that were built prior to 1994 have an immobilizer feature made up of coded keys. To add an additional key, you need a new transponder and special programming. This is usually done by the dealer using a special Tech2 diagnostic tool.
The problem is that this could be extremely expensive. This is why you should always have a spare key on hand.
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 will check to see whether the signal matches with the one on the key. If the signals match the car will then open and start. This is a great method to deter auto theft and keep your vehicle safe from thieves.
Transponder keys are a popular feature in cars, but it is important to know that they are not as secure as classic metal keys. The metal component of the traditional key is easily cut or copied, while transponders are protected by an electronic chip which protects it. This chip contains a unique code that is programmed into the car's computer to identify it.
The car will recognize the Saab keyfob and allow it to be turned on. However, it will only do this if the fob has a non-modified chip that has been programmed to match. In the absence of that, the car will reject the key and refuse to start.
It is essential to have a spare Saab key. This is especially true when you live in a rural area where there are numerous car thieves. The good news is that it's possible to find a new key for your Saab without needing to visit an auto dealership and pay the high costs they ask. In most cases, you can have a new key made on-the-spot at a fraction of the cost of what you'd pay at the dealer.
Wired key
Saab cars are usually delivered with two keys. If you have only one, you should get an extra key as soon as you can. This is because if it's lost, the car will need an entirely new CIM and the locking cylinders replaced. This can be expensive, especially for used cars.
The next step is to wire the row and column wires to the microcontroller. This is the most difficult part of the project and will require a good amount of soldering. It's not a standard way to do it, however, you should determine how to connect and solder each column and row. For this keyboard, there are 5 rows and 17 columns. So there will be 22 microcontroller wires and pins that you need to connect.
After the columns and rows are soldered, it's the time to connect them to the key switches. Solder a diode on each key switch pin. This will shield the pins of the key switch from current and prevent them from being shorted. A diode allows the current to flow in a single direction, and has a the black band as a visual indicator that shows 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 -- could help customers in the shop, or even DIY customers in certain cases replace keys in the program and restore lost immobilizer information, Sanabria says. The tools connect to OBD ports and guide 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 jump-start their vehicle in the event of an emergency, but this might not be the best idea for vehicles that are newer. These vehicles are equipped with numerous computers and digital devices which communicate with each other. A voltage spike when a battery is connected to another could cause damage to the components making your car unusable.
Connect the cables to the vehicle that is operating. Let it run for two minutes. Attach the red clip to the positive terminal of the good battery. (It will say "POS" or "+".) Attach the other end to a clean unpainted metal surface under the hood of the affected vehicle. The engine block is an excellent alternative. The black cable should not be connected to the negative terminal of the dead battery. This could result in a spark, which would ignite the gasoline that is in the engine compartment.
Once the cables are connected, you can start the vehicle and let it run for approximately five minutes. Then, disconnect them in reverse. Keep in mind that the battery on the Saab 9-3 will be charged when you drive, and it may take some time for the battery to go down. It's a good idea invest in a spare key fob as soon as you can, because replacing the only functioning one requires the installation of a brand new computer module and a special program to convince the system that your lost keys aren't in the process of trying to steal the car.
Replacement case
Saab owners often only have one car key, and if that is lost, they'll be charged. The reason is that it's not cheap to purchase a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. In the event of theft or any other catastrophe it is advisable to have an extra key. Don't buy a secondhand key even it's "new." Claimed-new keys from a second-hand store will not be effective and are almost guaranteed to fail at the crucial moment.
The dealer will charge you top dollar for only one working key. We can reset and reprogram the computer's EEEPROM for it to accept a new key without the need to replace the entire system. That can save you a significant amount of money. It's much cheaper than wait until you lose your only key.