14 Misconceptions Commonly Held About Saab Ignition Key Replacement
Saab Key Programming
Saab cars manufactured since 1994 feature an immobilizer mechanism based on coded keys. A new transponder is required for the addition of an extra key, and special programming. This is usually done at the dealer using a Tech2 diagnostic tool.
The problem is that this can be quite costly. This is the reason why you should always keep a spare key in your possession.
Transponder key
The transponder is a key equipped with an electronic chip. saab fob key replacement G28 sends a signal when the key is inserted into the ignition. The car then examines 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 way to avoid car theft and keep your car safe from thieves.
Transponder keys are a popular feature in cars, but you must be aware that they're not as secure as classic metal keys. While the metal parts of a traditional key could be cut and copied however, a transponder is secured by an electronic chip. The chip has a unique code which is programmed into a car's computers in order to identify it.
The car will recognize the Saab keyfob and permit it to be turned on. The car will only recognize the key fob when it has a chip that is unmodified and has been programmed to match. The car won't start in the event that the key has not been programmed to match.
It is essential to have a spare Saab key. This is especially important for those who live in a rural location that has many car thieves. The good news is that it's possible to obtain a replacement key for your Saab without needing to visit a dealership and pay the hefty prices that they charge. You can get a replacement key made on the spot at a fraction of the price you'd pay at an auto dealer.
Key for Wired
Saab cars are typically delivered with two keys. If you only have one, it is an ideal idea to purchase an additional key fob as soon as possible in case you lose it, the car will require a new CIM unit and the locking cylinders have to be replaced. This can be costly especially if purchasing a used car.
The next step is connecting the wires for columns and row to your microcontroller. This is the most difficult part of the project and will require a lot of soldering. It's not a standard way to do it, but you should consider how you will route and solder each column and row. For this keyboard, there are 5 rows and 17 columns, which means there will be 22 microcontroller wires and pins to connect.
After the columns and rows are soldered together It is now time to connect the key switches. To do this, put a diode across each pin of the key switch and solder it. This will shield the pins of the key switch from current and also prevent them from being shorted. A diode only allows the current to flow in a single direction, and has a an indicator in black that shows the direction in which current will flow.
Sanabria states that a number of the tools available in auto parts stores, including the Autel MaxiIM IM608PRO and IM508 will assist customers who are shopping or DIY customers to program replacement keys and restore data from the immobilizer. The tools plug into OBD ports and guide the customer through each step and make the process more straightforward than replacing the car's computer.
Jumpstarting the battery
The majority of people have the set in their trunk to start a vehicle in the event of an emergency, however it might not be the best option for vehicles with newer technology. These vehicles are equipped with many digital and computers that communicate with one another. A voltage surge when a battery is connected to another can fry the components and render your vehicle unusable.
Start the vehicle you are using and allow it to run for around two minutes before connecting the cables to the non-working one. Attach the red clip on the positive terminal of the battery that is good. (It will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the car's hood. The engine block would be a good choice. The black cable is not to be connected to the negative terminal of the dead battery. This could trigger sparks, which would ignite the gasoline in the engine compartment.
After the cables have been connected, you can start 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 will take a while for it to return to its original state. It is recommended to purchase an additional key fob as soon as you can. Replacing the one that works requires the installation and programming of a new computer chip.
Replacement case
Saab owners usually only have one car key, and if that is lost, they will be charged. The reason is that it's not inexpensive to purchase a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. In the event of theft, or any other disaster, it is best to have a spare key. But don't buy a used key even if it's "new." Keys that are claimed as new from sellers selling aftermarket keys won't work and are almost guaranteed to fail in the crucial moment.
The majority of locksmiths won't be able to help with a single working key and the dealer will charge you for the cost of replacing the computer in your vehicle to create a replacement. We can reset and reprogram the computer's EEEPROM in order for it to accept a replacement key without having to replace the entire system. This can help you save money. It's cheaper to do this rather than wait until you lose your only key.