The Saab Ignition Key Replacement Success Story You'll Never Be Able To
Saab Key Programming
Saab cars built from 1994 have an immobilizer system based on coded keys. Adding an extra key requires a new transponder, as well as special programming. This is usually done at the dealer using a special Tech2 diagnostic tool.
The problem is that this could be quite costly. This is why it is important to always have a spare key available.
Transponder key
The transponder key is a piece of hardware equipped with an electronic chip. It transmits a signal to the car when it is placed in the ignition. The car is able to check whether the signal matches the one on the key. If the signals match it will unlock and begin. This is a great method to prevent car theft and keep your car safe from thieves.
Transponder keys may be a popular addition to automobiles, but they are not as secure as traditional metal keys. While the metal portion of a conventional key can be cut and copied but a transponder key is protected by an electronic chip. This chip contains an individual code that is programmed into the car's computer to identify it.
The car will recognize the Saab keyfob and permit it to turn on. However, it is only able to do this if the fob is unmodified and has a chip that has been programmed to match it. Otherwise, the car will reject the key and won't start.
It's crucial to ensure that you have an extra key for your Saab. This is especially true for those who live in a rural region that has numerous car thieves. The good part is that you can find a new key for your Saab without needing to visit an auto dealer and pay the expensive prices that they charge. In most cases, you can have a brand new key made right on the spot for less than half the price of what you'd pay at an auto dealer.
Key for Wired
Saab cars usually come with two keys when they are new. If you only have one, it's a good idea to get an additional 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 need to be replaced. This can be costly especially for cars that are used.
The next step is to wire the wires of the column and row to the microcontroller. This is the most difficult part of the project, and will require lots of soldering. It's not a standard way to do it, but you need to consider how you will route and connect each column and row. There are 22 microcontroller pins and wires to connect to this keyboard. It has five rows and 17 column.
After the rows and column are joined after which it is time to connect the key switches. To do this you must place a diode across each pin of the key switch and then solder it. This will shield the pins from current, preventing them from being shorted. The diode will only allow current to flow in one direction, and it also has a the black band as a visual indicator that indicates which way the current will flow.
Sanabria says that a few of the tools available in auto parts stores, including the Autel MaxiIM IMM608PRO and IM508, can help customers shopping or DIY users to program replacement keys and restore the immobilizer's data. The tools plug into OBD ports and help the customer through each step, making the process easier than replacing the car's computer.
Jump-starting the battery
A lot of people keep a set in their trunks to jump-start their vehicle in the event of an emergency, but it may not be the best idea for vehicles that are newer. These vehicles are equipped with many computers and digital devices which communicate with each other. A voltage surge while a battery is hooked up to another could cause damage to these components and render your vehicle undriveable.
Start the working vehicle and let it run for about two minutes before you connect the cables to the non-working one. Attach the red clip to the positive terminal on the battery that is good (it will have "POS" or "+" on it). Attach the other end to a clean unpainted metal surface under the hood of the disabled car. The engine block is a great choice. Don't connect the black cable to the negative terminal of the dead battery as this could trigger an ignition source that ignites gasoline in the engine bay.
Once the cables are connected, you need to begin the car and let it run for approximately five minutes. Then disconnect the cables in reverse. The battery in your Saab 9-3 will be recharged as you drive. It takes a while for it to fall back. It's a good idea purchase a spare fob as soon as you can, since replacing the sole working one requires the installation of a new computer module and special programming to convince it that your lost keys are not trying to steal the car.
replacement saab key have only one key for their car and if they lose that the cost will be. The reason is that it's costly to purchase a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. It's best to have a second key in case of theft or other disaster and the most effective way is to buy an extra key as soon as you are able to. Even if the key is "new", it won't work.
The dealer will charge you the highest dollar for only one working key. We can reset and reprogram the EEEPROM of your computer to get it ready to accept a new key without having to replace the entire system. This can save you a lot of money. It's less expensive rather than wait until you lose your only key.