20 Best Tweets Of All Time About Saab Ignition Key Replacement
Saab Key Programming
Saab cars built from 1994 have an immobilizer that relies on keys that are coded. A new transponder is required for the inclusion of an additional key, and special programming. This is usually done by the dealer using a special Tech2 diagnostic tool.
It can be costly. It is recommended to always have an extra set of keys at hand.
Transponder key
The transponder key is a piece of hardware with an electronic chip that sends a signal to car when it is inserted into the ignition. The car then analyzes the signal to determine whether it is identical to the one in the key. If the signals match, the car will unlock itself and start. This is a fantastic way to protect your car from theft.
Transponder keys are a popular feature in automobiles, but you should be aware that they aren't as secure as classic metal keys. The metal component of a traditional key can be easily cut and copied, whereas transponders are protected by an electronic chip that safeguards it. This chip contains a unique code programmed into the car's computer to identify it.
When a Saab key fob is used the car recognizes it and allows it to turn on. The car can only recognize the key fob if it is equipped with a chip that is unmodified and has been programmed to match. If not, the car will reject the key and refuse to start.
It's essential to ensure that you have an extra key for your Saab. This is especially important when you live in a rural area, where there are a lot of car burglars. You can get a brand new key for your Saab by going to the dealership and not paying their expensive cost. In the majority of cases, you can have a new key made on-the-spot at a fraction of the cost you'd pay at the dealer.
Wired key
Saab cars are usually provided with two keys. If you have only one, it is a good idea to get an additional key fob as soon as you can since if you lose it, the car will require an entirely new CIM unit and the locking cylinders will have to be replaced. This could be expensive particularly if you are buying a second-hand car.
The next step is connecting the wires for columns and rows to your microcontroller. This is the most tedious part of the project and it will require lots of soldering. It's not a common way to go about 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, so there will be 22 microcontroller wires and pins to connect.
After the columns and rows are soldered, it's time to connect them to the key switches. To do this, put a diode across each key switch pin and solder it. This will shield the pins of the key switch from current and prevent them from being shorted. A diode lets current only flow in only one direction. It is equipped with a visible indicator that is black, that shows which way current will flow.
Sanabria says that some of the tools that are sold in auto parts stores, including the Autel MaxiIM IM608PRO 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 guide the customer through each step, making the process easier than replacing the vehicle's computer.
Jumpstarting the battery
A majority of people keep a set in their trunk to jump-start a vehicle in the event of an emergency, however it might not be a good idea for newer cars. These cars have a variety of digital and electronic devices that communicate with one another. A surge in voltage when a battery is hooked up to another could cause damage to these components and render your car undriveable.
Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal of the battery that's good. (It will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface beneath the damaged car's hood. The engine block would be a good choice. Don't connect the black cable to the negative terminal on the dead battery as this could trigger an ignition source that ignites gasoline in the engine bay.
Once the cables are connected, start the vehicle that has been disabled and let it run for approximately five minutes before disconnecting them in reverse order. The battery in your Saab 9-3 will be recharged while you drive. It will take some time for it to fall back. It's a good idea to invest in a spare key fob as soon as you can, because 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 attempting to steal the car.
Replacement Case
Saab owners usually only have one car key, and if that is lost, they'll be charged. It's expensive to purchase the key and also requires replacing the CIM or TWICE for older models. In saab key fob replacement of theft or any other calamity, it is best to have a spare key. Don't purchase a used key even if it's "new." Claimed-new keys from a second-hand store will not work and are almost guaranteed to fail in the most critical moment.
The dealer will charge you the highest dollar if you have only one working key. However, we can reset and reprogram the computer's EEPROM in order to prepare it to accept an alternative key without replacing the whole system. This could help you save money. It's much cheaper than wait until you lose your only key.