Saab Key Programming
Saab cars produced since 1994 utilize an immobilizer system based on key codes. 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 with a specialized Tech2 diagnostic tool.
This can be expensive. This is the reason why you should always keep a spare key in your possession.
Transponder key
The transponder can be described as a key with an electronic chip. This chip sends out a signal when the key is placed into the ignition. The car then checks the signal to see if it matches the one that is in the key. If the signals are in sync the car will then unlock and begin. This is a great method to avoid car theft and keep your car safe from thieves.
Transponder keys could be an increasingly popular feature for cars, but they are not as safe as traditional keys made of metal. While the metal part of a traditional key can be cut and copied but a transponder key is protected by an electronic chip. This chip has an individual code that is encoded into the car's system to identify it.
When a Saab key fob is used the car recognizes it and allows it to turn on. However, it can only do so if the key fob is unmodified and has a chip that has been programmed to match it. Otherwise, the car will refuse to accept the key and will not start.
It is essential to ensure that you have a spare key for your Saab. This is especially true if you reside in a rural area that is home to numerous car thieves. The good part is that you can find a replacement key to your Saab without needing to visit a dealership and pay the hefty prices that they charge. In the majority of cases, you can have an original key made on the spot for less than half the price of what you would pay at a dealer.
Wired key
Saab cars typically come with two keys upon purchase. If you only have one, it is best to acquire an additional key fob as soon as you can since if you lose it, your car will require the replacement of a CIM unit, and the locking cylinders need to be replaced. This can be expensive particularly for used cars.
The next step is to connect the wires of the column and row to the microcontroller. This is the most tedious part of the project and it will require lots of soldering. It's not a common way to do it, but you need to determine how to route and solder each column and row. There are 22 microcontroller wires and pins to connect for this keyboard. It includes 5 rows and 17 columns.
After the columns and rows are soldered, it's the time to connect them to key switches. To do this, place a diode over each pin of the key switch and then solder it. This will protect the pins from current, and prevent them from being shorted. A diode only allows current to flow in one direction, and it comes with a the black band as a visual indicator that indicates the direction in which current will flow.
A few of the tools that are available at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- can assist customers at the shop or DIY users in some cases create replacement keys and restore lost immobilizer information, Sanabria says. The tools plug into the OBD port and guide the user through the procedure, making it simpler than replacing the computer inside the vehicle.
Jump-starting the battery
Most people keep a few sets of jumper cables in their trunks to use in an emergency however, jumping a battery on newer automobiles might not be the most efficient option. These vehicles are equipped with a number of digital and computer systems that communicate with one another. A surge in voltage while a battery is hooked up to another battery could fry these components and render your car unable to drive.
Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip on the positive terminal of the battery that is good. (It will read "POS" or "+".) Attach the other end of the black cable to a clean, unpainted metal surface beneath the damaged car's hood. The engine block would be a good option. saab key programming connect the black cable to the negative terminal on the dead battery, since it could ignite an ignition spark that ignites the gasoline in the engine bay.
Once the cables are connected the disabled vehicle and allow it to run for around five minutes before disconnecting them in reverse order. The battery in your Saab 9-3 is recharged as you drive. It will take some time for it to return to its original state. You should consider purchasing another key fob as soon as possible. Replacing the only one that works requires the installation and programming of a new computer chip.
Replacement Case
Many Saab owners only have one key for their car and if they lose that they'll be charged. It's expensive to add keys and will require replacing the CIM or TWICE for older models. It's recommended to have a second key in case of theft or any other catastrophe, and the best way is to purchase an additional key as quickly as you can. However, don't purchase a secondhand key, even when it's "new." Keys that are claimed as new from aftermarket sellers will not work and are almost guaranteed to fail in the most critical moment.
The majority of locksmiths won't be able to help if you have only one working key and the dealer will charge for the cost of replacing the computer in your vehicle to make a new replacement. We can, however, reset and re-program your computer's EEPROM to prepare it to accept a new key without replacing the whole system. That can help you save money. It's much cheaper rather than wait until you loose the only key.